MURATA POWER SOLUTIONS MYMGK1R820ERSR

MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PRODUCT OVERVIEW The MYMGK1R820 series are miniature Mono Block type non-isolated Point-of-Load (PoL) DC-DC power converters for embedded applications. The tiny form factor measures Typical unit only 10.5 x 9.0 x 5.6 mm. Applications include powering FEATURES FPGA/CPU’s, datacom/telecom systems, Distributed Bus ■Programmable output voltage from Architectures (DBA), programmable logic and mixed voltage systems. 0.7 to 1.8Vdc The converters have input voltage ranges of 4.5 to 5.5Vdc ■Up to 20A of output current or 8.0 to 14.0Vdc and a maximum output current of 20A. ■Quick response to load change Based on a fixed frequency synchronous buck converter ■Ultra small surface mount package switching topology, this high power conversion efficient 10.5 x 9.0 x 5.6mm PoL module features programmable output voltage 0.7 to ■High efficiency of 89.2% 1.8Vdc, On/Off control and Power Good signal output. ■Outstanding thermal derating performance These converters also include under voltage lock out ■Over current protection (UVLO), output short circuit protection and over-current ■On/Off control (Positive logic) protection. ■Power Good signal ■RoHS-6 hazardous substance compliance ■High Reliability / Heat Shock Testing 700cycle (-40 to +125degC) ■Meets CISPR 22 class B conducted emission SIMPLIFIED APPLICATION MYMGK1R820 Series MYMGK1R820ERSR MYMGK1R820FRSR Cin：22uF/25V x 2pcs Cin：47uF/10V x 2pcs Co：220uF/4V x 3pcs Co：220uF/4V x 3pcs (Typical topology is shown. Murata recommends an external input fuse.) Export Control Code : X0863　Document No : DC_R140213 http://www.murata.com/products/power MYMGK1R820 Series A05 Page 1 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE (Including series products) OUTPUT INPUT PACKAGE Efficiency Regulation(max.) ON/OFF PART NUMBER Vout Iout Power R/N typ. Vin typ. Range Iin no load Iin full load (%) (mm) (A,max.) (Vdc) (W) (% of Vout) Line(%) Load(%) (Vdc) (Vdc) (mA) (A) MYMGK1R820FRSR ±2.0 ±1.0 5 4.5-5.5 100 8.1 89.2 0.7-1.8 Yes 10.5 x 9.0 x 5.6 20 36 0.8 (typ.1.8V) (Positive) MYMGK1R820ERSR ±1.0 ±1.0 12 8-14 50 3.5 87.8 1.All specifications are at typical line voltage, Vout = 1.8V and full load, +25degC unless otherwise noted. Output capacitors are 220uF x 3 ceramic. Input capacitors are 22 uF x 2 or 47uF x 2 ceramic and plenty electrolytic capacitors. See detailed specifications. Input and Output capacitors are necessary for our test equipment. 2.Use adequate ground plane and copper thickness adjacent to the converter. PART NUMBER STRUCTURE MY MGK 1R8 20 E R S R Murata products Internal Code Internal Code Maximum Output Current 20 : 20A ON/OFF Control Logic Series Name S : Positive Logic Maximum Output Voltage 1R8 : 1.8V Input Voltage Range E : 8.0-14.0V F : 4.5-5.5V Product Marking Because of the small size of these products, the product Part Number Product Code marking contains a character-reduced code to indicate the MYMGK1R820FRSR 1R820FRS model number and manufacturing date code. Not all items on MYMGK1R820ERSR 1R820ERS the marking are always used. Please note that the marking differs from the product photograph. Here is the layout of the Marking. Layout（reference) Codes(reference) M C M The manufacturing date code is six or more characters: C 1Pin Marking 1R820FRS First character - Factory code 1R820FRS Product code Second character - Last digit of manufacturing Year (Please see product code table beside) For example "6" means "2016" N6X Third character - Month code (1 through 9 and X through Z) N6X □ Manufacturing date code Fourth character and after- Internal lot-code The marking contains two rows of information: First row - Product code Second row - Manufacturing date code http://www.murata.com/products/power MYMGK1R820 Series A05 Page 2 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series FUNCTIONAL SPECIFICATIONS OF MYMGK1R820FRSR (Note 1) ABSOLUTE MAXIMUM RATINGS Conditions Minimum Typical Maximum Units Input Voltage -0.3 6.5 Vdc ON/OFF Pin Power on, referred to -Vin -0.3 Vin-1.5 Vdc PGOOD/Trim Pins Power on, referred to -Vin Source ONLY Vout 0.7 2.0 Vdc Output Current Current-limited, no damage, short-circuit protected 0 20 A Storage Temperature Range Vin = Zero (no power) -40 125 degC Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions Minimum Typical Maximum Units Operating Voltage Range 4.5 5 5.5 Vdc Start-up Threshold Rising input voltage 4.3 Vdc Under Voltage Shutdown Note 12 4.1 Vdc Internal Filter Type Capacitive Input Current Vin = 5.0V, Vout = 1.8V, Iout = 20A 8.1 A Full Load Conditions Low Line Vin = 4.5V, Vout = 1.8V, Iout = 20A 9 A No Load Current Iout = 0A, unit = ON 100 mA 1 mA Shut-Down Mode Input Current GENERAL and SAFETY Conditions Minimum Typical Maximum Units Vin = 5.0V, Vout = 1.8V, Iout = 20A 89.2 Efficiency % Vin = 5.0V, Vout = 1.0V, Iout = 20A 84.1 Certified to UL-60950-1, CSA-C22.2 No. 60950-1, Safety Pending IEC/EN60950-1, 2nd edition(pending) Calculated MTBF (Note 3) +40degC, Vin = 5.0V, Vout = 1.8V, Iout = 50% 3,800,000 hours DYNAMIC CHARACTERISTICS Conditions Minimum Typical Maximum Units Fixed Switching Frequency 500 kHz Startup Time (Vin ON) Vout = 1.8V (Vin On to 90% of Vout) 1.4 ms Startup Time (Remote ON) Vout = 1.8V (Remote On to 90% of Vout) 1.4 ms Dynamic Load Response (50-100% load step, di/dt) 2.5 A/us Dynamic Load Peak Deviation same as above ±3.0% Voset FUNCTIONS Conditions Minimum Typical Maximum Units Remote On/Off Control (Note 4) Logic ON State Range ON = +1.8Vmin. to +Vin-1.5Vmax. or left open 1.8 Vin-1.5 V OFF State Range OFF =-0.3V to +0.6Vmax. -0.3 0.6 V Open collector/drain - mA Control Current Power-Good Output (Pulled up to 5.0Vreg(typ.) internally) PGood TRUE (HI) (Voset x 95%) < Vout < (Voset x 113%) V PGood FALSE (LO) Out of above range V http://www.murata.com/products/power MYMGK1R820 Series A05 Page 3 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series FUNCTIONAL SPECIFICATIONS OF MYMGK1R820FRSR (Note 1) OUTPUT Conditions Minimum Typical Maximum Units Total Output Power Range See Derating 0 36 W Voltage Note 10 0.7 1.8 Vdc Output Voltage Range Minimum Loading None Accuracy (50% load, untrimmed) Vin = 5.0V, Vout = 1.8V, Cout = 660uF, Ta = 25degC ±1 % of Vout Note 13 >120%Vout Vdc Over Voltage Protection <70%Vout Vdc Under Voltage Protection Current Output Current Range Note 2 0 20 A After warmup 30 A Current Limit Inception Short Circuit Short Circuit Duration (remove short for recovery) Output shorted to ground, no damage Continuous Note 5 Hiccup Short Circuit Protection Method Converter will start up if the external output voltage Pre-bias Start-up is less than set Vout. Regulation (Note8) Line Regulation Vin = min. to max. ±2 % of Vout Note 6 30 mV pk-pk Ripple and Noise (20MHz bandwidth) 660 5000 uF External Output Capacitance Range (Note 11) MECHANICAL(Common) Conditions Minimum Typical Maximum Units Mechanical Dimension L x W x H 10.5(typ.) x 9.0(typ.) x 5.6(max.) mm Weight 1.65 grams ENVIRONMENTAL(Common) Conditions Minimum Typical Maximum Units Operating Ambient Temperature Range With Derating (Note 2,7) -40 85 degC Storage Temperature Range Vin = Zero (no power) -40 125 degC Thermal Protection/Shutdown Measured in module (Note9) 145 degC Moisture Sensitivity Level 3 RoHS Rating RoHS-6 http://www.murata.com/products/power MYMGK1R820 Series A05 Page 4 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series FUNCTIONAL SPECIFICATIONS OF MYMGK1R820ERSR (Note 1) ABSOLUTE MAXIMUM RATINGS Conditions Minimum Typical Maximum Units Input Voltage -0.3 16 Vdc ON/OFF Pin Power on, referred to -Vin -0.3 6.3 Vdc PGOOD/Trim Pins Power on, referred to -Vin Source ONLY Vout 0.7 2 Vdc Output Current Current-limited, no damage, short-circuit protected 0 20 A Storage Temperature Range Vin = Zero (no power) -40 125 degC Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions Minimum Typical Maximum Units Operating Voltage Range 8 12 14 Vdc Start-up Threshold Rising input voltage 4.3 Vdc Under Voltage Shutdown Note 12 4.1 Vdc Internal Filter Type Capacitive Input Current Vin = 12.0V, Vout = 1.8V, Iout = 20A 3.5 A Full Load Conditions Low Line Vin = 8.0V, Vout = 1.8V, Iout = 20A 5.2 A No Load Current Iout = 0A, unit = ON 50 mA 1 mA Shut-Down Mode Input Current GENERAL and SAFETY Conditions Minimum Typical Maximum Units Vin = 12.0V, Vout = 1.8V, Iout = 20A 87.8 Efficiency % Vin = 12.0V, Vout = 1.0V, Iout = 20A 81.5 Certified to UL-60950-1, CSA-C22.2 No. 60950-1, Safety Pending IEC/EN60950-1, 2nd edition(pending) Calculated MTBF (Note 3) +40degC, Vin = 12.0V, Vo = 1.8V, Iout = 50% 2,100,000 hours DYNAMIC CHARACTERISTICS Conditions Minimum Typical Maximum Units Fixed Switching Frequency 500 kHz Startup Time (Vin ON) Vout = 1.8V (Vin On to 90% of Vout) 1.4 ms Startup Time (Remote ON) Vout = 1.8V (Remote On to 90% of Vout) 1.4 ms Dynamic Load Response (50-100% load step, di/dt) 2.5 A/us Dynamic Load Peak Deviation same as above ±3.0% Voset FUNCTIONS Conditions Minimum Typical Maximum Units Remote On/Off Control (Note 4) Logic ON State Range ON = +1.8Vmin. to +6.3V max. or left open 1.8 6.3 V OFF State Range OFF =-0.3V to +0.6V.max. -0.3 0.6 V Open collector/drain - mA Control Current Power-Good Output (Pulled up to 5.0Vreg(typ.) internally) PGood TRUE (HI) (Voset x 95%) < Vout < (Voset x 113%) PGood FALSE (LO) Out of above range http://www.murata.com/products/power MYMGK1R820 Series A05 Page 5 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series FUNCTIONAL SPECIFICATIONS OF MYMGK1R820ERSR (Note 1) OUTPUT Conditions Minimum Typical Maximum Units Total Output Power See Derating 0 36 W Voltage Note 10 0.7 1.8 Vdc Output Voltage Range Minimum Loading None Accuracy (50% load, untrimmed) Vin = 12.0V, Vout = 1.8V, Cout = 660uF, Ta = 25degC ±1 % of Vout Note 13 >120%Vout Vdc Overvoltage Protection <70%Vout Vdc Under voltage Protection Current Output Current Range Note 2 0 20 A After warmup 30 A Current Limit Inception Short Circuit Short Circuit Duration (remove short for recovery) Output shorted to ground, no damage Continuous Note 5 Hiccup Short Circuit Protection Method Converter will start up if the external output voltage Pre-bias Start-up is less than set Vout. Regulation (Note8) Line Regulation Vin = min. to max. ±1 % of Vout Note 6 30 mV pk-pk Ripple and Noise (20MHz bandwidth) 660 5000 uF External Output Capacitance Range (Note 11) Specification Notes (1)Specifications are typical at +25degC, Vin=typical (6)Output noise may be further reduced by adding an external filter. At zero output +5.0V(MYMGK1R820FRSR) or +12.0V.(MYMGK1R820ERSR), Vout=typical current, the output may contain low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load. (+1.8V), full load, external caps and natural convection unless otherwise indicated. All models are tested and specified with external 220uF x 3 ceramic (7)All models are fully operational and meet published specifications, including “cold output capacitors, 22uF x 2 (for MYMGK1R820ERSR) or 47uF x 2 (for start” at -40degC. MYMGK1R820FRSR) ceramic and plenty electrolytic external input capacitors. (8)Regulation specifications describe the deviation as the line input voltage or output All capacitors are low ESR types. These capacitors are necessary to load current is varied from a midpoint value to either extreme. accommodate our test equipment and may not be required to achieve specified (9)Thermal Protection/Shutdown temperature is measured with the sensor in the the converter. performance in your applications. However, Murata recommends installation of these capacitors. (10)Do not exceed maximum power specifications when adjusting the output trim. (2)Note that Maximum Power Derating curves indicate an average current at (11)The maximum output capacitive loads depend on the Equivalent Series typical input voltage. At higher temperatures and/or no airflow, the converter will Resistance (ESR) of the external output capacitor and, to a lesser extent, the distance tolerate brief full current outputs if the total RMS current over time does not and series impedance to the load. Larger caps will reduce output noise but may change the transient response. Newer ceramic caps with very low ESR may require exceed the Derating curve. lower capacitor values to avoid instability. Thoroughly test your capacitors in the (3)Mean Time Between Failure is calculated using the MIL-HDBK-217 Note2 method, +40degC, half output load, natural air convection. application. (4)The On/Off Control Input should use either a switch or an open collector/open (12)Do not allow the input voltage to degrade lower than the input under voltage drain transistor referenced to GND. A logic gate may also be used by applying shutdown voltage at all times. Otherwise, you risk having the converter turn off. The appropriate external voltages which do not exceed +Vin under voltage shutdown is not latching and will attempt to recover when the input is brought back into normal operating range. (5)“Hiccup” overcurrent operation repeatedly attempts to restart the converter (13)The outputs are intended to sink appreciable reverse current. with a brief, full-current output. If the overcurrent condition still exists, the restart current will be removed and then tried again. This short current pulse prevents overheating and damaging the converter. Once the fault is removed, the converter immediately recovers normal operation. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 6 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series Internal Circuit Diagrams ON/OFF internal circuit diagram and using guide Vin Pull UP Resistance MYMGK1R820FRSR :12kohm(±0.5%) MYMGK1R820ERSR :100kohm(±0.5%) ON/OFF To ON/OFF terminal Pull DOWN Resistance of control IC MYMGK1R820FRSR :10kohm(±0.5%) MYMGK1R820ERSR :33kohm(±0.5%) GND Recommended application Power Good(P.G) internal circuit diagram and using guide Vin Regulator Vout:5V(±10%) Vin>5.2V(without Tolerance) 100kohm(±5%) Source Current 0.025mA min. P.G P.G Logic Control Connect to other Circuit converter's ON/OFF Sink Current terminal etc. 1mA max. P.G Pull-down FET http://www.murata.com/products/power MYMGK1R820 Series A05 Page 7 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820FRSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 0.7V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 0.7V) On/Off Enable Delay (Vin=5.0V, Vout=0.7V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout, Trace3=P.G (Vin=5.0V, Vout=0.7V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=5.0V, Vout=0.7V, Cload=660uF, Step Load Transient Response (Vin=5.0V, Vout=0.7V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=21mV ΔV=21mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 8 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820FRSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 1.0V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 1.0V) On/Off Enable Delay (Vin=5.0V, Vout=1.0V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout, Trace3=P.G (Vin=5.0V, Vout=1.0V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=5.0V, Vout=1.0V, Cload=660uF, Step Load Transient Response (Vin=5.0V, Vout=1.0V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=21mV ΔV=21mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 9 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820FRSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 1.8V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 1.8V) On/Off Enable Delay (Vin=5.0V, Vout=1.8V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout, Trace3=P.G (Vin=5.0V, Vout=1.8V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=5.0V, Vout=1.8V, Cload=660uF, Step Load Transient Response (Vin=5.0V, Vout=1.8V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=21mV ΔV=23mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 10 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820ERSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 0.7V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 0.7V) On/Off Enable Delay (Vin=12V, Vout=0.7V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout, Trace3=P.G (Vin=12V, Vout=0.7V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=12.0V, Vout=0.7V, Cload=660uF, Step Load Transient Response (Vin=12.0V, Vout=0.7V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=25mV ΔV=24mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 11 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820ERSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 1.0V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 1.0V) On/Off Enable Delay (Vin=12.0V, Vout=1.0V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout. Trace3=P.G (Vin=12.0V, Vout=1.0V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=12.0V, Vout=1.0V, Cload=660uF, Step Load Transient Response (Vin=12.0V, Vout=1.0V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=25mV ΔV=25mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 12 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGK1R820ERSR Efficiency vs. Line Voltage and Load Current @ +25degC. (Vout = 1.8V) Vout vs. Line Voltage and Load Current @ +25degC. (Vout = 1.8V) On/Off Enable Delay (Vin=12.0V, Vout=1.8V, Iout=20A, Cload=660uF) Output Ripple and Noise Trace1=Enable, Trace2=Vout, Trave3=P.G (Vin=12.0V, Vout=1.8V, Iout=20A, Cload=660uF, ScopeBW=20MHz) Step Load Transient Response (Vin=12.0V, Vout=1.8V, Cload=660uF, Step Load Transient Response (Vin=12.0V, Vout=1.8V, Cload=660uF, Iout=10A to 20A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. Iout=20A to 10A, 2.5A/us) Trace 3=Vout, 50 mV/div, Trace 4=Iout, 10A/div. ΔV=25mV ΔV=25mV http://www.murata.com/products/power MYMGK1R820 Series A05 Page 13 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series THERMAL DERATINGS OF MYMGK1R820FRSR & MYMGK1R820ERSR MYMGK1R820FRSR MYMGK1R820ERSR Maximum Current Temperature Derating at Sea Level Maximum Current Temperature Derating at Sea Level Thermal deratings are evaluated in following condition. ・No forced air flow. Surface temperature of the product : 110degC maxP14P TRANSIENT RESPONSE DATAS OF MYMGK1R820FRSR & MYMGK1R820ERSR Transient response data at various conditions are showed in following table. Minimum output capacitance can serve less than 3% x Vout of deviation for 10A load change(1A/us). Voltage Deviation(mV) Vout(V) Vin(V) Cout(uF) 10-20A Load Step (1A/us) 5 19 0.7 12 21 5 19 1 12 22 660 5 20 1.2 12 22 5 20 1.8 12 22 http://www.murata.com/products/power MYMGK1R820 Series A05 Page 14 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series MECHANICAL SPECIFICATIONS Dimension and Pin Assignment Unit: mm Tolerances ± 0.15 mm INPUT/OUTPUT CONNECTIONS Pin No. Function 1~6 Vin 7 Power Good 8 ON/OFF 9~14 GND 15~20 Vout 21 Sense 22 Trim 23~28 GND 29~37 GND(Thermal Pad) Unit: mm < Bottom View > http://www.murata.com/products/power MYMGK1R820 Series A05 Page 15 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series Recommended Board Land Pattern (Top View) 0.2 0.2 1.2 0.75 1.3 1.3 1.3 0.75 1.2 0.4 1.0 1 2 3 23 24 25 0.2 3.4 1.0 4 5 6 26 27 28 0.75 0.8 0.55 1.1 29 30 31 1.2 7 22 0.2 1.1 1.3 34 33 32 0.2 1.2 1.1 8 21 35 36 37 0.8 1.0 9 10 11 15 16 17 3.4 0.2 12 13 14 18 19 20 1.0 0.4 1.1 1.1 1.1 0.8 1.1 1.1 1.1 0.4 0.4 0.2 0.2 0.2 0.2 Unit: mm Example of Pattern Layout (Top View) Picture 20.9x11.0(mm) TOP VIEW BOTTOM VIEW http://www.murata.com/products/power MYMGK1R820 Series A05 Page 16 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series TAPE AND REEL INFORMATION Tape Dimension Unit: mm Reel Dimension Unit: mm http://www.murata.com/products/power MYMGK1R820 Series A05 Page 17 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series TAPE SPECIFICATION Note 1. The adhesive strength of the protective tape must be within 0.1-1.3N. 2.Each reel contains 400 pcs. 3.Each reel set in moisture-proof packaging because of MSL 3. 4.No vacant pocket in “Module on tape” section. 5.The reel is labeled with Murata part number and quantity. 6.The color of reel is not specified. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 18 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series TECHNICAL NOTES Input Fuse The capacitor should be a ceramic type such as the Murata Certain applications and/or safety agencies may require fuses at GRM32 series and a electrolytic type such as Panasonic OS- the inputs of power conversion components. Fuses should also CON series. Initial suggested capacitor values are 22 uF x 2 or be used when there is the possibility of sustained input voltage 47uF x 2 ceramic type and 1000uF x 1 electrolytic type , rated at reversal which is not current limited. For greatest safety, we twice the expected maximum input voltage. Make sure that the recommend a fast blow fuse installed in the ungrounded input input terminals do not go below the under voltage shutdown supply line. The installer must observe all relevant safety voltage at all times. More input bulk capacitance may be added standards and regulations. For safety agency approvals, install in parallel (either electrolytic or tantalum) if needed. the converter in compliance with the end-user safety standard. Recommended Output Filtering Input Under-Voltage Shutdown and Start-Up Threshold The converter will achieve its rated output ripple and noise with Under normal start-up conditions, converters will not begin to additional external capacitor. The user may install more external regulate properly until the ramping-up input voltage exceeds and output capacitance reduce the ripple even further or for remains at the Start-Up Threshold Voltage (see Specifications). improved dynamic response. Again, use low-ESR ceramic Once operating, converters will not turn off until the input voltage (Murata GRM32 series). Initial values of 220 uF x 3 ceramic drops below the Under-Voltage Shutdown Limit. Subsequent type may be tried, either single or multiple capacitors in parallel. restart will not occur until the input voltage rises again above the Mount these close to the converter. Measure the output ripple Start-Up Threshold. This built-in hysteresis prevents any under your load conditions. Use only as much capacitance as unstable on/off operation at a single input voltage. required to achieve your ripple and noise objectives. Excessive Users should be aware however of input sources near the capacitance can make step load recovery sluggish or possibly Under-Voltage Shutdown whose voltage decays as input current introduce instability. Do not exceed the maximum rated output is consumed (such as capacitor inputs), the converter shuts off capacitance listed in the specifications. and then restarts as the external capacitor recharges. Such Output Noise situations could oscillate. To prevent this, make sure the All models in this converter series are tested and specified for operating input voltage is well above the UV Shutdown voltage output noise using designated external output components, at all times. circuits and layout as shown in the figures below. In the figure Start-Up Time below, the two copper strips simulate real-world printed circuit Assuming that the output current is set at the rated maximum, impedances between the power supply and its load. In order to the Vin to Vout Start-Up Time (see Specifications) is the time minimize circuit errors and standardize tests between units, interval between the point when the ramping input voltage scope measurements should be made using BNC connectors or crosses the Start-Up Threshold and the fully loaded regulated the probe ground should not exceed one half inch and soldered output voltage enters and remains within its specified accuracy directly to the test circuit. band. Actual measured times will vary with input source COPPER STRIP impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. VOUT These converters include a soft start circuit to moderate the duty SCOPE C1 C2 cycle of its PWM controller at power up, thereby limiting the input RLOA inrush current. The On/Off Remote Control interval from On command to Vout GND COPPER regulated assumes that the converter already has its input STRIP voltage stabilized above the Start-Up Threshold before the On 3-7mm command. The interval is measured from the On command until C1=220uF x 3 CERAMIC the output enters and remains within its specified accuracy band. C2=OPEN The specification assumes that the output is fully loaded at Figure ：Measuring Output Ripple and Noise maximum rated current. Similar conditions apply to the On to Minimum Output Loading Requirements Vout regulated specification such as external load capacitance All models regulate within specification and are stable under no and soft start circuitry. load to full load conditions. Operation under no load might Recommended Input Filtering however slightly increase output ripple and noise. The user must assure that the input source has low AC Thermal Shutdown impedance to provide dynamic stability and that the input supply To prevent many over temperature problems and damage, these has little or no inductive content, including long distributed wiring converters include thermal shutdown circuitry. If environmental to a remote power supply. For best performance, we recommend conditions cause the temperature of the converter’s to rise above installing a low-ESR capacitor immediately adjacent to the the Operating Temperature Range up to the shutdown converter’s input terminals. temperature, an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 19 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series UVP/OVP Function CAUTION: If you operate too close to the thermal limits, This product monitors a resistor divided feedback the converter may shut down suddenly without warning. Be voltage to detect over and under voltage. When the sure to thoroughly you’re your application to avoid feedback voltage becomes lower than 70% of the target unplanned thermal shutdown. voltage, after 1ms, the product latches OFF. The Temperature Derating Curves converter restarts after a hiccup delay (about 16 ms ). The graphs in this data sheet illustrate typical operation This function is enabled 1.5ms after the soft-start is under a variety of conditions. The derating curves show the completed. maximum continuous ambient air temperature. Note that When the feedback voltage becomes higher than 120% these are AVERAGE measurements. of the target voltage, the circuit operates sink-mode to Note that the temperatures are of the ambient airflow, not decrease output voltage. If the output voltage reaches the converter itself which is obviously running at higher UV threshold, the device restarts after a hiccup delay. If temperature than the outside air. Also note that very low the OV condition remains, the converter will not start flow rates (below about 25 LFM) are similar to “natural until the OV condition is removed. convection,” that is, not using fan-forced airflow. Murata Remote On/Off Control makes Characterization measurements in a closed cycle Please refer to the Connection Diagram on page 1 for wind tunnel with calibrated airflow. We use both On/Off connections. thermocouples and an infrared camera system to observe Positive logic models are enabled when the On/Off pin is thermal performance. left open or is pulled high to Vin with respect to GND. An CAUTION: These graphs are all collected at slightly above internal bias current causes the OVP open pin to rise to Sea Level altitude. Be sure to reduce the derating for Vin. Positive-polarity devices are disabled when the higher density altitude. On/Off is grounded or brought to within a low voltage Output Current Limiting (see Specifications) with respect to GND. Current limiting inception is defined as the point at which Dynamic control of the On/Off function should be able to full power falls below the rated tolerance. See the sink appropriate signal current when brought low and Performance/Functional Specifications. Note particularly withstand appropriate voltage when brought high. Be that the output current may briefly rise above its rated aware too that there is a finite time in milliseconds (see value in normal operation as long as the average output Specifications) between the time of On/Off Control power is not exceeded. This enhances reliability and activation and stable, regulated output. This time will continued operation of your application. If the output vary slightly with output load type and current and input current is too high, the converter will enter the short circuit conditions. condition. Output Capacitive Load Output Short Circuit Condition Users should only consider adding capacitance to When a converter is in current-limit mode, the output reduce switching noise and/or to handle spike current voltage will drop as the output current demand increases. load steps. Install only enough capacitance to achieve Following a time-out period, the converter will restart, noise objectives. Excess external capacitance may causing the output voltage to begin ramping up to its cause regulation problems, degraded transient response appropriate value. If the short-circuit condition persists, and possible oscillation or instability. another shutdown cycle will initiate. This rapid on/off Soldering Guidelines cycling is called “hiccup mode”. The hiccup cycling reduces Murata recommends the specifications below when the average output current, thereby preventing excessive installing these converters. These specifications vary internal temperatures and/or component damage. A short depending on the solder type. circuit can be tolerated indefinitely. Exceeding these specifications may cause damage to The “hiccup” system differs from older latching short circuit the product. Your production environment may differ systems because you do not have to power down the therefore please thoroughly review these guidelines with converter to make it restart. The system will automatically your process engineers. restore operation as soon as the short circuit condition is removed. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 20 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series Output Voltage Adjustment Reflow Solder Operations for surface-mount products For Sn/Ag/Cu based solders: The output voltage may be adjusted over a limited range by Preheat Temperature Less than 1degC per second connecting an external trim resistor (Rtrim) between the Trim Time over Liquidus 45 to 75 seconds pin and GND pin. The Rtrim resistor must be a 1/10W Maximum Peak Temperature 250degC precision metal film type,±0.5% accuracy or better with low Cooling Rate Less than 3degC per second For Sn/Pb based solders: temperature coefficient, ±100 ppm/degC. or better. Mount the Preheat Temperature Less than 1degC per second resistor close to the converter with very short leads or use a Time over Liquidus 60 to 75 seconds Maximum Peak Temperature 235degC surface mount trim resistor. Cooling Rate Less than 3degC per second In the table below, the estimated resistance is given at limited condition ;Vin:typ.,Ta:25degC,Iout:max.,Cout:660uF. (Please Recommended Lead-free Solder Reflow Profile look at Test Circuit which is shown below). Do not exceed the specified limits of the output voltage or the converter’s maximum power rating when applying these resistors. Also, avoid high noise at the Trim input. However, to prevent instability, you should never connect any capacitors between Trim pin and GND pin. Estimated Rtrim (kohm) Output Voltage MYMGK1R820FRSR MYMGK1R820ERSR 0.7V 75+0.36 68+2.4 1.0V 16+0.39 16 1.2V 10+0.75 10+0.62 1.5V 6.8+0.33 6.8+0.24 1.8V 5.1+0.27 5.1+0.20 Resistor Trim Equation MYMGK1R820FRSR 10 x A CAUTION: Do not reflow the converter as follows, Rtrim ( kohm ) = ( Vout - A ) because the converter may fall from the substrate during reflowing. A = 0.617 + 0.01 x （ Vout - 0.6 ） Mother Substrate MYMGK1R820ERSR 10 x A Converter Rtrim ( kohm ) = ( Vout - A ) A = 0.612 + 0.01 x （ Vout - 0.6 ） Pb-free solder processes Output voltage depends on the value of capacitance of Cout For Pb-free solder processes, the product is qualified for MSL in this product , the smaller Cout may cause the higher output 3 according to IPC/JEDEC standard J-STD-020C. voltage. The equations above are only reference, so please During reflow the converter must not exceed 250 degC at any check output voltage and adjust Rtrim in user circumstances. time. To increase(decrease) output voltage is obtained by Dry Pack Information decreasing(increasing) value of Rtrim . Products intended for Pb-free reflow soldering processes are delivered in standard moisture barrier bags according to IPC/JEDEC standard J-STD-033. (Handling, packing, shipping and use of moisture/reflow sensitivity surface mount devices.) Using products in high temperature Pb-free soldering processes requires dry pack storage and handling. In case the products have been stored in an uncontrolled environment and no longer can be considered dry, the modules must be baked according to J-STD-033. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 21 of 22 MYMGK1R820 Series Mono Block Type Small & High Power Density 20A DC-DC Converter Series APPENDIX Test Circuit Vout Vin Sense ON/OFF RL Trim C3 Vin GND Rtrim C1 C2 Power Good Vin：DC Power Supply RL：Electronic Load Device For MYMGK1R820FRSR C1：1000uF/25V x 1pc Electrolysis Capacitor C2：47uF/10V x 2pcs (GRM32ER71A476KE15：Murata) C3：220uF/4V x 3pcs (GRM32EC80G227ME05：Murata) For MYMGK1R820ERSR C1：1000uF/25V x 1pc Electrolysis Capacitor C2：22uF/25V x 2pcs (GRM32ER71E226KE15：Murata) C3：220uF/4V x 3pcs (GRM32EC80G227ME05：Murata) *Do not connect any additional components between the Trim pin and Vout or between the Trim and Sense pins. Use only the specified connections. Specifications are subject to change without notice. http://www.murata.com/products/power MYMGK1R820 Series A05 Page 22 of 22