ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Input Range (Vdc) Vout Model Number Iout (A) (Vdc) Min Max ICH0141V1xC 9 36 12 41 ICH0421V1xC 9 36 24 21 9 36 28 18 ICH0518V1xC Features
4:1 Input voltage range of 9-36V
Single outputs of 12V, 24V or 28V
2250V Isolation voltage (Input-to-Output)
Industry Standard half brick package 2.4" x 2.5" x 0.52" (61mm x 64mm x 13.2mm)
Efficiency up to 95.7%
Excellent thermal performance
Over-Current and Short Circuit Protection
Over-Temperature protection
Monotonic startup into pre-bias loads
200kHz Fixed switching frequency
Remote On/Off control (Positive or Negative logic)
Good shock and vibration damping
Operating Temperature Range -40ºC to +105ºC
RoHS Compliant Product Overview temperature operation. The 4:1 input voltage 500 Watt single output ICH DC-DC converter provides a precisely regulated dc output. The output The converters high efficiency and high power density are voltage is fully isolated from the input, allowing the output to be accomplished through use of high-efficiency synchronous positive or negative polarity and with various ground rectification technology, advanced electronic circuit, connections. The enclosed half brick package meets the most packaging and thermal design thus resulting in a high rigorous performance standards in an industry standard reliability product. The converter operates at a fixed frequency footprint for mobile (12Vin), process control (24Vin), and of 200kHz and follows conservative component derating Commercial-Off-The-Shelf (28Vin) applications. guidelines. The ICH Series includes an external TRIM adjust and remote Product is designed and manufactured in the USA. ON/OFF control. Threaded through holes are provided to allow easy mounting or the addition of a heat sink for extended Part Number Structure and Ordering Guide Description Part Number Structure Definition and Options Product Family I C IC= Industrial Class Form Factor H H = Half Brick Vout* 0 1 01 = 12Vout, 02 = 5Vout, 03 = 3.3Vout, 04 = 24Vout, 05 = 28Vout Output Current 4 1 Max Iout in Amps Vin Range V 1 V1 = 9 to 36V On/Off Control Logic N = Negative, P = Positive (Standard) P Specific Customer Configuration X X Customer Code, Omit for Standard RoHS Compliant C RoHS 6/6 Compliant *NOTE: Some part number combinations might not be available. Please contact the factory for non-standard or special order products. www.murata-ps.com/support MDC_ICH_500W_A04 Page 1 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – All Models Conditions: Ta = 25ºC, airflow = 300 LFM (1.5m/s), Vin = 24VDC, unless otherwise specified. Specifications subject to change without notice. Parameter Notes Min Typ Max Units Absolute Maximum Ratings Continuous 0 40 V Input Voltage Transient (100ms) 50 V Operating Temperature (See Note 1) Baseplate (100% load) Standard model -40 105 ºC Storage Temperature -55 125 ºC Isolation Characteristics and Safety Input to Output 2250 V Isolation Voltage Input to Baseplate & Output to Baseplate 1500 V Isolation Capacitance 4500 pF Isolation Resistance 10 20 MΩ Insulation Safety Rating Basic Agency Approvals Designed to meet UL/cUL 60950, IEC/EN 60950-1 Feature Characteristics Fixed Switching Frequency 200 kHz Output Voltage Ripple has twice this frequency Output Voltage Trim Range ± 10 % Remote Sense Compensation This function is not provided N/A % Output Overvoltage Protection Non-latching 117 124 130 % Overtemperature Shutdown (Baseplate) Non-latching 110 120 ºC Auto-Restart Period Applies to all protection features 450 500 550 ms Time from UVLO to Turn-On Time from Vin 517 530 ms Vo=90% Vout (NOM) Resistive load Trim from ON to Turn-On time from ON/OFF Control 17 20 ms Vo=90% Vout (NOM) Resistive load Rise Time Vout from 10% to 90% 4 7.5 11 ms ON/OFF Control - Positive Logic ON state Pin open = ON or external voltage applied 2 12 V Control Current Leakage current 0.16 mA OFF state 0 0.8 V Control Current Sinking 0.3 0.36 mA ON/OFF Control - Negative Logic ON state Pin shorted to -INPUT or 0.8 V OFF state Pin open = Off or 2 12 V Thermal Characteristics Thermal resistance Baseplate to Ambient Converter soldered to 3.95” x 2.5” x 0.07” 4 layer/ 2oz 5.2 ºC/W copper FR4 PCB. 1. A thermal management device, such as a heatsink, is required to ensure proper operation of this device. The thermal management medium is required to maintain baseplate < 105ºC for full rated power. www.murata-ps.com/support MDC_ICH_500W_A04 Page 2 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0141V1 Conditions: Ta = 25ºC, airflow = 300 LFM (1.5m/s), Vin = 24VDC, unless otherwise specified. Specifications subject to change without notice. Parameter Notes Min Typ Max Units Input Characteristics Operating Input Voltage Range 9 24 36 V Input Under Voltage Lockout Non-latching Turn-on Threshold 8.2 8.5 8.8 V Turn-off Threshold 7.7 8 8.3 V Lockout Hysteresis Voltage 0.4 0.55 0.7 V Maximum Input Current Vin = 9V, 80% Load 50.4 A Vin = 12V, 100% Load 46.2 A Vin = 24V, Output Shorted 65 mARMS Input Stand-by Current Converter Disabled 2 4 mA Input Current @ No Load Converter Enabled 240 280 mA Minimum Input Capacitance (external) ESR < 0.1 Ω 470 μF 2 Inrush Transient Vin = 36V (0.4V/μs) no input external capacitor 0.4 1 A s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 620 mA RMS Output Characteristics Output Voltage Range 11.64 12.00 12.36 V Output Voltage Set Point Accuracy (50% load) 11.88 12.00 12.12 V Output Regulation Over Line Vin = 9V to 36V 0.05 0.15 % Over Load Vin = 24V, Load 0% to 100% 0.08 0.15 % Temperature Coefficient 0.015 0.03 %/ºC Overvoltage Protection 14.0 15.6 V 120 180 mVPK-PK (Fig. 3) 100% Load, Output Ripple and Noise - 20MHz bandwidth Cext = 470 μF/70mΩ + 1 μF ceramic 30 60 mV RMS 470 4700 μF Cext Full Load (resistive) External Load Capacitance -40 ºC < Ta < +105 ºC ESR 10 100 mΩ Output Current Range (See Fig. A) Vin = 12V - 36V 0 41 A Vin = 9V 0 33.3 A Current Limit Inception Vin = 12V - 36V 45.1 49.2 53.3 A 9V < Vin < 12V 40.6 53.3 A RMS Short-Circuit Current Non-latching, Continuous 4 7 A RMS Dynamic Response Load change 50% - 75% - 50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±320 ±450 mV Load change 50% - 100% - 50%, di/dt=1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±700 mV Setting Time to 1% of Vout 600 μs Efficiency Vin = 24V 93.2 93.9 94.6 % 100% Load Vin = 12V 91.4 92.1 92.8 % Vin = 24V 94.7 95.4 96.1 % 50% Load Vin = 12V 93.9 94.6 95.2 % www.murata-ps.com/support MDC_ICH_500W_A04 Page 3 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0421V1 Conditions: Ta = 25ºC, airflow = 300 LFM (1.5m/s), Vin = 24VDC, unless otherwise specified. Specifications subject to change without notice. Parameter Notes Min Typ Max Units Input Characteristics Operating Input Voltage Range 9 24 36 V Input Under Voltage Lockout Non-latching Turn-on Threshold 8.2 8.5 8.8 V Turn-off Threshold 7.7 8 8.3 V Lockout Hysteresis Voltage 0.4 0.55 0.7 V Maximum Input Current Vin = 9V, 80% Load 50.4 A Vin = 12V, 100% Load 47.0 A Vin = 24V, Output Shorted 75 mARMS Input Stand-by Current Converter Disabled 2 4 mA Input Current @ No Load Converter Enabled 240 300 mA Minimum Input Capacitance (external) ESR < 0.1 Ω 470 μF 2 Inrush Transient Vin = 36V (0.4V/μs) no input external capacitor 0.4 1 A s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 680 mA RMS Output Characteristics Output Voltage Range 23.28 24.00 24.72 V Output Voltage Set Point Accuracy (50% load) 23.76 24.00 24.24 V Output Regulation Over Line Vin = 9V to 36V 0.05 0.15 % Over Load Vin = 24V, Load 0% to 100% 0.08 0.15 % Temperature Coefficient 0.015 0.03 %/ºC Overvoltage Protection 28.1 31.2 V 240 360 mVPK-PK (Fig. 3) 100% Load, Output Ripple and Noise - 20MHz bandwidth Cext = 470 μF/70mΩ + 1 μF ceramic 50 80 mV RMS 470 2200 μF Cext Full Load (resistive) External Load Capacitance -40 ºC < Ta < +105 ºC ESR 10 100 mΩ Output Current Range (See Fig. A) Vin = 12V - 36V 0 21 A Vin = 9V 0 16.7 A Current Limit Inception Vin = 12V - 36V 23.1 25.2 27.3 A 9V < Vin < 12V 20.8 27.3 A RMS Short-Circuit Current Non-latching, Continuous 3.8 6 A RMS Dynamic Response Load change 50% - 75% - 50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±280 ±420 mV Load change 50% - 100% - 50%, di/dt=1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±500 mV Setting Time to 1% of Vout 600 μs Efficiency Vin = 24V 93.6 94.3 95.0 % 100% Load Vin = 12V 92.3 93.0 93.7 % Vin = 24V 94.5 95.4 96.3 % 50% Load Vin = 12V 94.5 95.2 95.9 % www.murata-ps.com/support MDC_ICH_500W_A04 Page 4 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0518V1 Conditions: Ta = 25ºC, airflow = 300 LFM (1.5m/s), Vin = 24VDC, unless otherwise specified. Specifications subject to change without notice. Parameter Notes Min Typ Max Units Input Characteristics Operating Input Voltage Range 9 24 36 V Input Under Voltage Lockout Non-latching Turn-on Threshold 8.2 8.5 8.8 V Turn-off Threshold 7.7 8 8.3 V Lockout Hysteresis Voltage 0.4 0.55 0.7 V Maximum Input Current Vin = 9V, 80% Load 50.4 A Vin = 12V, 100% Load 46.2 A Vin = 24V, Output Shorted 55 mARMS Input Stand-by Current Converter Disabled 2 4 mA Input Current @ No Load Converter Enabled 240 280 mA Minimum Input Capacitance (external) ESR < 0.1 Ω 470 μF 2 Inrush Transient Vin = 36V (0.4V/μs) no input external capacitor 0.4 1 A s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 550 mA RMS Output Characteristics Output Voltage Range 27.16 28.00 28.84 V Output Voltage Set Point Accuracy (50% load) 27.72 28.00 28.28 V Output Regulation Over Line Vin = 9V to 36V 0.05 0.15 % Over Load Vin = 24V, Load 0% to 100% 0.08 0.15 % Temperature Coefficient 0.015 0.03 %/ºC Overvoltage Protection 32.8 36.4 V 280 380 mVPK-PK (Fig. 3) 100% Load, Output Ripple and Noise - 20MHz bandwidth Cext = 470 μF/70mΩ + 1 μF ceramic 50 85 mV RMS 470 2200 μF Cext Full Load (resistive) External Load Capacitance -40 ºC < Ta < +105 ºC ESR 10 100 mΩ Output Current Range (See Fig. A) Vin = 12V - 36V 0 18 A Vin = 9V 0 14.3 A Current Limit Inception Vin = 12V - 36V 19.8 23.4 A 9V < Vin < 12V 17.8 23.4 A RMS Short-Circuit Current Non-latching, Continuous 2.2 6 A RMS Dynamic Response Load change 50% - 75% -50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±270 ±410 mV ±500 mV Load change 50% - 100% - 50%, di/dt=1A/μs Co = 470 μF/70mΩ + 1 μF ceramic Setting Time to 1% of Vout 800 μs Efficiency Vin = 24V 94.3 95.0 95.7 % 100% Load Vin = 12V 93.1 93.8 94.5 % Vin = 24V 95.0 95.7 96.4 % 50% Load Vin = 12V 94.1 94.8 95.5 % www.murata-ps.com/support MDC_ICH_500W_A04 Page 5 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Environmental and Mechanical Specifications: Specifications subject to change without notice. Parameter Notes Min Typ Max Units Environmental Operating Humidity Non-condensing 95 % Storage Humidity Non-condensing 95 % See Murata Website http://www.murata-ps.com/en/support/rohs-compliance.html for the complete RoHS RoHS Compliance Compliance Statement Shock and Vibration (See Note 1) Designed to meet MIL-STD-810G for functional shock and vibration Water Washability Not recommended for water wash process. Contact the factory for more information. Mechanical 3.85 Ounces Unit Weight 109.2 Grams PCB Operating Temperature 130 ºC Tg 170 ºC Through Hole Pin Diameters Pins 1,4,5 and 9 0.079 0.081 0.083 Inches 2.006 2.057 2.108 mm Pins 3 and 7 0.038 0.04 0.042 Inches 0.965 1.016 1.067 mm Through Hole Pins Material Pins 1,4,5 and 9 Copper Alloy Pins 3 and 7 Brass Alloy TB3 or “Eco Brass” Through Hole Pin Finish All pins 10μ” Gold over Nickel 2.4 x 2.5 x 0.52 Inches Case Dimensions mm 60.96 x 63.50 x 13.21 Case Material Plastic: Vectra LCP FIT30: 1/2-16 EDM Finish Material Aluminum Baseplate 0.008 Inches Flatness 0.20 mm Reliability Telcordia SR-332, Method I Case 1 50% electrical MTBF 5.4 MHrs stress, 40ºC components EMI and Regulatory Compliance Conducted Emissions MIL-STD-461F C102 with external EMI filter network (see Figures, 34 and 35) 1. The unit must be properly secured to the interface medium (PCB/Chassis) by use of the threaded inserts of the unit. Figure A: Output Power as function of input voltage. www.murata-ps.com/support MDC_ICH_500W_A04 Page 6 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC TECHNICAL NOTES The negative logic version turns on when the ON/OFF pin is at logic low and turns off when at logic high. The converter is on when the ON/OFF pin Input and Output Capacitance is either shorted to -INPUT pin or kept below 0.8V. The converter is off In many applications, the inductance associated with the distribution from when the ON/OFF pin is either left open or external voltage greater than 2V the power source to the input of the converter can affect the stability of and not more than 12V is applied between ON/OFF pin and -INPUT pin. the converter. This becomes of great consideration for input voltage at See the Electrical Specifications for logic high/low definitions. 12V or below. In order to enable proper operation of the converter, in The ON/OFF pin is internally pulled up to typically 4.5V via resistor and particular during load transients, an additional input capacitor is required. connected to internal logic circuit via RC circuit in order to filter out noise Minimum required input capacitance, mounted close to the input pins, is that may occur on the ON/OFF pin. A properly de-bounced mechanical 1000μF with ESR < 0.1 Ω. Since inductance of the input power cables switch, open-collector transistor, or FET can be used to drive the input of could have significant voltage drop due to rate of change of input current the ON/OFF pin. The device must be capable of sinking up to 0.36mA at di(in)/dt during transient load operation an external capacitance on the a low level voltage of < 0.8V. During logic high, the typical maximum output of the converter is required to reduce di(in)/dt. It is required to use voltage at ON/OFF pin (generated by the converter) is 4.5V, and the at least 470 μF (ESR < 0.07Ω) on the output. Another constraint is minimum maximum allowable leakage current is 160μA. If not using the remote rms current rating of the input and output capacitors which is application on/off feature leave the ON/OFF pin open. dependent. One component of input rms current handled by input capacitor is high frequency component at switching frequency of the TTL Logic Level - The range between 0.81V as maximum turn off voltage converter (typ. 400kHz) and is specified under “Input terminal ripple and 2V as minimum turn on voltage is considered the dead-band. Operation current” ic. Typical values at full rated load and 24 Vin are provided in in the dead-band is not recommended. Section “Characteristic Waveforms” for each model and are in range of 0.55A - 0.7A. Second component of the ripple current is due to reflected External voltage for ON/OFF control should not be applied when there is no step load current on the input of the converter. Similar consideration needs input power voltage applied to the converter. to be taken into account for output capacitor and in particular step load ripple current component. Consult the factory for further application guidelines. Protection Features: Additionally, for EMI conducted measurement it is necessary to use 5μH LISNs instead of typical 50μH LISNs. Input Undervoltage lockout (UVLO) Input undervoltage lockout is standard with this converter. The converter ON/OFF (Pin 3) will shut down when the input voltage drops below a pre-determined The ON/OFF pin is used to turn the power converter on or off remotely via voltage. a system signal and has positive logic. A typical connection for remote The input voltage must be typically above 8.5V for the converter to turn ON/OFF function is shown in Fig. 1. on. Once the converter has been turned on, it will shut off when the input voltage drops typically below 8V. If the converter is started by input voltage (ON/OFF (pin 3) left open) there is typically 500msec delay from the moment when input voltage is above 8.5V turn-on voltage and the time when output voltage starts rising. This delay is intentionally Vout (+) Vin (+) provided to prevent potential startup issues especially at low input voltages. ICH CONVERTER (TOP VIEW) Rload ON/OFF Vin Output Overcurrent Protection (OCP) The converter is protected against overcurrent or short circuit conditions. Upon sensing an overcurrent condition, the converter will switch to constant current operation and thereby begin to reduce output voltage. Vout (-) Vin (-) CONTROL When the output voltage drops below approx. 75% of the nominal value of INPUT output voltage, the converter will shut down. Once the converter has shut down, it will attempt to restart nominally Fig. 1: Circuit configuration for ON/OFF function. every 500msec with a typical 3% duty cycle. The attempted restart will continue indefinitely until the overload or short circuit conditions are The positive logic version turns on when the ON/OFF pin is at logic high removed or the output voltage rises above 75% of its nominal value. and turns off when at logic low. The converter is on when the ON/OFF pin is either left open, or external voltage not more than 12V is applied between ON/OFF pin and -INPUT pin. See the Electrical Specifications for logic high/low definitions. www.murata-ps.com/support MDC_ICH_500W_A04 Page 7 of 17 ICH 500-Watt Series Wide Input Isolated Half Brick DC-DC Once the output current is brought back into its specified range, the Output Voltage Adjust/TRIM (pin7) converter automatically exits the hiccup mode and continues normal The TRIM pin allows user to adjust output voltage 10% up or down operation. relative to rated nominal voltage by addition of external trim resistor. During initial startup, if output voltage does not exceed typical 75% of Due to absence of Remote Sense Pins, an external trim resistor should nominal output voltage within 20 msec after the converter is enabled, be connected to output pins using Kelvin connection. If trimming is not the converter will be shut down and will attempt to restart after 500 used, the TRIM pin should be left open. msec. Trim Down - Decrease Output Voltage Output Overvoltage Protection (OVP) Trimming down is accomplished by connecting an external resistor, The converter will shut down if the output voltage across Vout (+) (Pin Rtrim-down, between the TRIM (pin7) and the Vout(-) (pin 9) using 5) and Vout (-) (Pin 9) exceeds the threshold of the OVP circuitry. The Kelvin connection, with a value of: OVP circuitry contains its own reference, independent of the output voltage regulation loop. Once the converter has shut down, it will 3010 R trim-down = ( − 60.2) [kΩ] attempt to restart every 500 msec until the OVP condition is removed. ∆ Overtemperature Protection (OTP) Where, The ICH converters have non-latching overtemperature protection. It Rtrim-down = Required value of the trim-down resistor [kΩ] Vo(noM) will shut down and disable the output if temperature at the center of = Nominal value of output voltage [V] the base plate exceeds a threshold of 112ºC (typical). Vo(req) = Required value of output voltage [V] VO (REQ )−VO (NOM ) ∆ = [%] The converter will automatically restart when the base VO (NOM ) temperature has decreased by approximately 20ºC To trim the output voltage 10% (∆=10) down, required external trim Safety Requirements resistance is: Basic Insulation is provided between input and the output. 3010 Ω R trim-down = − 60.2 = 240.8 [k ] ( ) 10 The converters have no internal fuse. To comply with safety agencies requirements, a fast-acting or time-delay fuse is to be provided in the unearthed lead. Trim Up - Increase Output Voltage Recommended fuse values are: Trimming up is accomplished by connecting an external resistor, Rtrim-up, between the TRIM (pin 7) and the Vout(+) (pin 5) using Kelvin a) 60A for 9V