ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Input Range (Vdc) Model Number Vout Iout (Vdc) (A) Min Max ICH0130V1xC 9 36 12 30 ICH0415V1xC 9 36 24 15 9 36 28 13 ICH0513V1xC 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 95.6%
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 360 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 3 0 Max Iout in Amps Vin Range V 1 V1 = 9 to 36V On/Off Control Logic P N = Negative, P = Positive (Standard) 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_360W_A04 Page 1 of 17 ICH 360-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) -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_360W_A04 Page 2 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0130V1 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 45.3 A Vin = 12V, 100% Load 33.2 A Vin = 24V, Output Shorted 65 mA RMS 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/μsec), no external input cap 0.4 1 A s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 560 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 mVRMS 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 = 9V - 36V 0 30 A Current Limit Inception Vin = 9V - 36V 33 36 39 A RMS Short-Circuit Current Non-latching, Continuous 4 7 ARMS Dynamic Response Load change 50% - 75% - 50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±200 ±320 mV Load change 50% - 100% - 50%, di/dt=1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±450 mV Setting Time to 1% of Vout 400 μs Efficiency Vin = 24V 93.7 94.4 95.1 % 100% Load Vin = 12V 92.9 93.6 94.3 % Vin = 24V 94.1 94.8 95.5 % 50% Load Vin = 12V 94.0 94.7 95.1 % www.murata-ps.com/support MDC_ICH_360W_A04 Page 3 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0415V1 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 8.0 8.3 V Lockout Hysteresis Voltage 0.4 0.55 0.7 V Maximum Input Current Vin = 9V, 80% Load 45 A Vin = 12V, 100% Load 42 A Vin = 24V, Output Shorted 75 mA RMS 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/μsec), no external input cap 0.4 1 A s Input Terminal Ripple Current, ic 600 mA 25 MHz bandwidth, 100% Load (Fig. 2) 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 mVRMS 50 80 μF 470 2200 Cext Full Load (resistive) External Load Capacitance -40 ºC < Ta < +105 ºC ESR 10 100 mΩ Output Current Range (See Fig. A) Vin = 9V - 36V 0 15 A Current Limit Inception Vin = 9V - 36V 16.5 18 19.5 A RMS Short-Circuit Current Non-latching, Continuous 3.8 6 ARMS Dynamic Response Load change 50% - 75% - 50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic mV ±280 ±420 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 94.5 95.2 95.9 % 100% Load Vin = 12V 93.8 94.5 95.2 % Vin = 24V 94.5 95.4 96.1 % 50% Load Vin = 12V 94.6 95.2 95.9 % www.murata-ps.com/support MDC_ICH_360W_A04 Page 4 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Electrical Specifications – ICH0513V1 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 45 A Vin = 12V, 100% Load 42 A Vin = 24V, Output Shorted 55 mA RMS 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/μsec), no external input cap 0.4 1 A s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 560 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 mVRMS 50 85 470 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 = 9V - 36V 0 13 A Current Limit Inception Vin = 9V - 36V 14.3 15.6 16.9 A RMS Short-Circuit Current Non-latching, Continuous 2.2 6 ARMS Dynamic Response Load change 50% - 75% -50%, di/dt = 1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±180 ±300 mV Load change 50% - 100% - 50%, di/dt=1A/μs Co = 470 μF/70mΩ + 1 μF ceramic ±400 mV Setting Time to 1% of Vout 500 μs Efficiency Vin = 24V 94.3 95.4 96.1 % 100% Load Vin = 12V 93.7 94.4 95.1 % Vin = 24V 94.3 95.0 95.7 % 50% Load Vin = 12V 94.0 94.7 95.1 % www.murata-ps.com/support MDC_ICH_360W_A04 Page 5 of 17 ICH 360-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_360W_A04 Page 6 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC TECHNICAL NOTES Input and Output Capacitance 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 In many applications, the inductance associated with the distribution from is either shorted to -INPUT pin or kept below 0.8V. The converter is off the power source to the input of the converter can affect the stability of the converter. This becomes of great consideration for input voltage at when the ON/OFF pin is either left open or external voltage greater than 2V and not more than 12V is applied between ON/OFF pin and -INPUT pin. 12V or below. In order to enable proper operation of the converter, in See the Electrical Specifications for logic high/low definitions. particular during load transients, an additional input capacitor is required. The ON/OFF pin is internally pulled up to typically 4.5V via resistor and Minimum required input capacitance, mounted close to the input pins, is 1000μF with ESR < 0.1 Ω. Since inductance of the input power cables connected to internal logic circuit via RC circuit in order to filter out noise that may occur on the ON/OFF pin. A properly de-bounced mechanical could have significant voltage drop due to rate of change of input current switch, open-collector transistor, or FET can be used to drive the input of di(in)/dt during transient load operation an external capacitance on the the ON/OFF pin. The device must be capable of sinking up to 0.36mA at output of the converter is required to reduce di(in)/dt. It is required to use a low level voltage of < 0.8V. During logic high, the typical maximum at least 470 μF (ESR < 0.07Ω) on the output. Another constraint is minimum voltage at ON/OFF pin (generated by the converter) is 4.5V, and the rms current rating of the input and output capacitors which is application maximum allowable leakage current is 160μA. If not using the remote dependent. One component of input rms current handled by input capacitor is high frequency component at switching frequency of the on/off feature leave the ON/OFF pin open. converter (typ. 400kHz) and is specified under “Input terminal ripple current” ic. Typical values at full rated load and 24 Vin are provided in TTL Logic Level - The range between 0.81V as maximum turn off voltage and 2V as minimum turn on voltage is considered the dead-band. Operation Section “Characteristic Waveforms” for each model and are in range of in the dead-band is not recommended. 0.56A - 0.6A. Second component of the ripple current is due to reflected step load current on the input of the converter. Similar consideration needs External voltage for ON/OFF control should not be applied when there is no to be taken into account for output capacitor and in particular step load input power voltage applied to the converter. ripple current component. Consult the factory for further application guidelines. Additionally, for EMI conducted measurement it is necessary to use 5μH LISNs instead of typical 50μH LISNs. Protection Features: Input Undervoltage lockout (UVLO) ON/OFF (Pin 3) Input undervoltage lockout is standard with this converter. The converter The ON/OFF pin is used to turn the power converter on or off remotely via will shut down when the input voltage drops below a pre-determined a system signal and has positive logic. A typical connection for remote voltage. ON/OFF function is shown in Fig. 1. The input voltage must be typically above 8.5V for the converter to turn 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 Vout (-) constant current operation and thereby begin to reduce output voltage. 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_360W_A04 Page 7 of 17 ICH 360-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 114ºC (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) 50A for 9V < Vin <18V connection, with a value of: b) 25A for 18V < Vin <36V (NOM)∗(100+∆) VO (100+2∆) R {[ ]− [k Ω] } trim -up = 30.1 ∗ ∆ 1.225∆ Electromagnetic Compatibility (EMC) To trim the output voltage up, for example 24V to 26.4V, EMC requirements must be met at the end-product system level, as Δ=10 and required external resistor is: no specific standards dedicated to EMC characteristics of board mounted component dc-dc converters exist. ∗ (100+10) (100+2 ∗10) 24 = 6125 kΩ ∗ [ ] R trim -up = 30.1 − {[ } ] 1 .225 ∗ 10 10 With the addition of a two stage external filter, the ICH converters will Note that trimming output voltage more than 10% is not pass the requirements of MIL-STD-461F CE102 Base Curve for recommended and OVP may be tripped. conducted emissions. Active Voltage Programming Absence of the Remote Sense Pins In applications where output voltage needs to be adjusted actively, an Customers should be aware that ICH converters do not have a Remote external voltage source, such as for example a Digital-to-Analog Sense feature. Care should be taken to minimize voltage drop on the converter (DAC), capable of both sourcing and sinking current can be user’s motherboard as well as if trim function is used. used. It should be connected with series resistor Rg across TRIM (pin 7) and Vout (-) (pin 9) using Kelvin connection. Please contact Murata technical representative for more details. www.murata-ps.com/support MDC_ICH_360W_A04 Page 8 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Thermal Consideration Soldering Guidelines The ICH converter can operate in a variety of thermal environments. The RoHS-compliant through hole ICH converters use Sn/Ag/Cu Pb- However, in order to ensure reliable operation of the converter, free solder and RoHS compliant components. They are designed to be sufficient cooling should be provided. The ICH converter is processed through wave soldering machines. The pins are 100% encapsulated in plastic case with metal baseplate on the top. In order matte tin over nickel plated and compatible with both Pb and Pb-free to improve thermal performance, power components inside the unit wave soldering processes. It is recommended to follow specifications are thermally coupled to the baseplate. In addition, thermal design of below when installing and soldering ICH converters. Exceeding these the converter is enhanced by use of input and out pins as heat transfer specifications may cause damage to the ICH converter. elements. Heat is removed from the converter by conduction, convection and radiation. Wave Solder Guideline for Sn/Ag/Cu based solders There are several factors such as ambient temperature, airflow, converter power dissipation, converter orientation how converter is Maximum Preheat Temperature 115ºC mounted as well as the need for increased reliability that need to be Maximum Pot Temperature 270ºC taken into account in order to achieve required performance. It is Maximum Solder Dwell Time 7 seconds highly recommended to measure temperature in the middle of the baseplate in particular application to ensure that proper cooling of the convert is provided. Wave Solder Guideline for SN/Pb based solders A reduction in the operating temperature of the converter will result in Maximum Preheat Temperature 105ºC an increased reliability. Maximum Pot Temperature 250ºC Maximum Solder Dwell Time 6 seconds Thermal Derating There are two most common applications: 1) the ICH converter is ICH converters are not recommended for water wash process. Contact thermally attached to a cold plate inside chassis without any forced the factory for additional information if water wash is necessary. internal air circulation; 2) the ICH converter is mounted in an open chassis on system board with forced airflow with or without an additional heatsink attached to the baseplate of the ICH converter. The best thermal results are achieved in application 1) since the converter is cooled entirely by conduction of heat from the top surface of the converter to a cold plate and temperature of the components is determined by the temperature of the cold plate. There is also some additional heat removal through the converters pins to the metal layers in the system board. It is highly recommended to solder pins to the system board rather than using receptacles. Typical derating output Fig. 2: Test setup for measuring input reflected ripple currents i and i C S. power and current are shown in Figs. 7–12 for various baseplate temperatures up to 105ºC. Note that operating converter at these limits for prolonged time will affect reliability. Fig. 3: Test setup for measuring output voltage ripple, startup and step load transient waveforms. www.murata-ps.com/support MDC_ICH_360W_A04 Page 9 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Characteristic Curves - Efficiency and Power Dissipation Fig. 4: ICH0130V1PC Efficiency Curve Fig. 5: ICH0130V1PC Power Dissipation Fig. 6: ICH0415V1PC Efficiency Curve Fig. 7: ICH0415V1PC Power Dissipation Fig. 8: ICH0513V1PC Efficiency Curve Fig. 9: ICH0513V1PC Power Dissipation www.murata-ps.com/support MDC_ICH_360W_A04 Page 10 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Characteristic Curves – Derating vs. Baseplate Temperature Fig. 11: ICH0130V1PC Derating Curve (Iout) Fig. 10: ICH0130V1PC Derating Curve (Pout) Fig. 13: ICH0415V1PC Derating Curve (Iout) Fig. 12: ICH0415V1PC Derating Curve (Pout) Fig.15: ICH0513V1PC Derating Curve (Iout) Fig. 14: ICH0513V1PC Derating Curve (Pout) www.murata-ps.com/support MDC_ICH_360W_A04 Page 11 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Characteristic Waveforms - ICH0130V1PC Fig. 17: Turn-on by Vin (ON/OFF high) transient at full rated load current Fig. 16: Turn-on by ON/OFF transient (with Vin applied) at full rated (resistive) at Vin = 24V. Top trace (C2): Input voltage Vin (10 V/div.). load current (resistive) at Vin = 24V. Top trace (C1): ON/OFF signal (5 Bottom trace (C4): Output voltage (5 V/div.). Time: 100 ms/div. V/div.). Bottom trace (C4): Output voltage (5 V/div.). Time: 5 ms/div. Fig. 19: Output voltage response to load current step change 50% - Fig. 18: Output voltage response to load current step change 50% - 75% 100% - 50% (15A-30A-15A) with di/dt = 1A/µs at Vin = 24V. Top trace - 50% (15A-22.5A-15A) with di/dt = 1A/µs at Vin = 24V. Top trace (C4): (C4): Output voltage (500 mV/div.). Bottom trace (C3): Load current Output voltage (200 mV/div.). Bottom trace (C3): Load current (20A/div.). Co = 470 µf/70mΩ. Time: 1ms/div. (20A/div.). Co = 470 µf/70mΩ. Time: 1ms/div. Fig. 20: Output voltage ripple (100 mV/div.) at full rated load current into Fig. 21: Input reflected ripple current, ic (500 mA/mV), measured at input terminals at full rated load current at Vin = 24V. Refer to Fig. 2 for a resistive load at Vin = 24V. Co= 470 µF/70mΩ. Time: 2 µs/div. test setup. Time: 2 µs/div. RMS input ripple current is 1. 125*500mA = 560 mA. www.murata-ps.com/support MDC_ICH_360W_A04 Page 12 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Characteristic Waveforms - ICH0415V1PC Fig. 23: Turn-on by Vin transient (ON/OFF high) at full rated load current Fig. 22: Turn-on by ON/OFF transient (with Vin applied) at full rated load (resistive) at Vin = 24V. Top trace (C2): Input voltage Vin (10 V/div.). current (resistive) at Vin = 24V. Top trace (C1): ON/OFF signal (5 V/ Bottom trace (C4): Output voltage (10 V/div.). Time: 100 ms/div. div.). Bottom trace (C4): Output voltage (10 V/div.). Time: 5 ms/div. Fig. 25: Output voltage response to load current step change 50% - Fig. 24: Output voltage response to load current step change 50% - 75% - 50% (7.5A-11.25A-7.5A) with di/dt = 1A/µs at Vin = 24V. Top trace 100% - 50% (7.5A-15A-7.5A) with di/dt = 1A/µs at Vin = 24V. Top trace (C4): Output voltage (500 mV/div.). Bottom trace (C3): Load (C4): Output voltage (200 mV/div.). Bottom trace (C3): Load current (10A/div.). Co = 470 µf/70mΩ. Time: 1ms/div. current (10 A/div.). Co = 470 µf/70mΩ. Time: 1ms/div. Fig. 26: Output voltage ripple (200 mV/div.) at full rated load current into Fig. 27: Input reflected ripple current, ic (500 mA/mV), measured at a resistive load at Vin = 24V. Co= 470 µF/70mΩ. Time: 2 µs/div. input terminals at full rated load current at Vin = 24V. Refer to Fig. 2 for test setup. Time: 2 µs/div. RMS input ripple current is 1. 205*500mA = 602.5mA. www.murata-ps.com/support MDC_ICH_360W_A04 Page 13 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Characteristic Waveforms - ICH0513V1PC Fig. 29: Turn-on by Vin transient (ON/OFF high) at full rated load current Fig. 28: Turn-on by ON/OFF transient (with Vin applied) at full rated load (resistive) at Vin = 24V. Top trace (C2): Input voltage Vin (10 V/div.). current (resistive) at Vin = 24V. Top trace (C1): ON/OFF signal (5 V/ Bottom trace (C4): Output voltage (10 V/div.). Time: 100 ms/div. div.). Bottom trace (C4): Output voltage (10 V/div.). Time: 5 ms/div. Fig. 30: Output voltage response to load current step change 50% - 75% Fig. 31: Output voltage response to load current step change 50% - 100% - 50% (6.5A-13A-6.5A) with di/dt = 1A/µs at Vin = 24V. Top - 50% (6.5A-9.75A-6.5A) with di/dt = 1A/µs at Vin = 24V. Top trace trace (C4): Output voltage (500 mV/div.). Bottom trace (C3): Load (C4): Output voltage (200 mV/div.). Bottom trace (C3): Load current current (10A/div.). Co = 470µf/70mΩ. Time: 1ms/div. (10A/div.). Co = 470µf/70mΩ. Time: 1ms/div. Fig. 32: Output voltage ripple (200mV/div.) at full rated load current into Fig. 33: Input reflected ripple current, ic (500mA/mV), measured at input a resistive load at Vin = 24V. Co= 470 µF/70mΩ. Time: 2 µs/div. terminals at full rated load current at Vin = 24V. Refer to Fig. 2 for test setup. Time: 2µs/div. RMS input ripple current is 0.935*500mA = 549mA. www.murata-ps.com/support MDC_ICH_360W_A04 Page 14 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC EMC Consideration: The filter schematic for suggested input filter configuration as tested to meet the conducted emission limits of MIL-STD 461F CE102 Base Curve is shown in Fig. 34. The plots of conducted EMI spectrum are shown in Fig. 35. Note: Customer is ultimately responsible for the proper selection, component rating and verification of the suggested parts based on the end application. EARTH Comp. Des. Description C1, C2, C12, C14 470µF/50V/70mΩ Electrolytic Capacitor (Vishay MAL214699108E3 or equivalent) C3, C4, C5, C6 4.7nF/1210/X7R/1500V Ceramic Capacitor C7, C8, C9, C10, C11, C13 10µF/1210/X7R/50V Ceramic Capacitor L1 CM choke: L = 130µH, L = 0.6µH (4 turns on toroid 22.1mm x 13.7mm x 7.92mm) lkg Fig. 34: Typical input EMI filter circuit to attenuate conducted emissions per MIL-STD-461F CE102 Base Curve. a) Without input filter. CIN = 2 x 470µF/50V/70mΩ. b) With input filter from Fig. 34. Fig.35: Input conducted emissions measurement (Typ.) of ICH0415V1PC www.murata-ps.com/support MDC_ICH_360W_A04 Page 15 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Mechanical Specifications: NOTES: Unless otherwise specified: All dimensions are in inches [millimeters] Tolerances: x.xx in. ±0.02 in. [x.x mm ±0.5mm] x.xxx in. ±0.010 in [x.xx mm ±0.25mm] Torque fasteners into threaded mounting inserts at 10in.lbs. or less. Greater torque may result in damage to unit and void the warranty. Input/Output Connections: Pin Name Function 1 -INPUT Negative input voltage TTL input with internal pull up, referenced to 3 ON/OFF -INPUT, used to turn converter on and off 4 +INPUT Positive input voltage 5 +OUTPUT Positive output voltage 7 TRIM Output voltage trim 9 - OUTPUT Negative output voltage Notes: 1) Pinout is inconsistent between manufacturers of the half brick converters. Make sure to follow the pin function and the pin number, when laying out your board. 2) Pin diameter for the input pins of the ICH converters has diameter 0.081” due to high input current at low line, and is different from other manufacturers of the half brick. Make sure to follow pin dimensions in your application. www.murata-ps.com/support MDC_ICH_360W_A04 Page 16 of 17 ICH 360-Watt Series Wide Input Isolated Half Brick DC-DC Packaging Information: 1. SHIPPING TUBE MATERIAL: ANTI-STATIC PVC 2. ALL END VIEW DIMENSIONS ARE INSIDE DIMENSIONS. 3. ALL DIMENSIONS ARE ± 0.010”. 4. CARDBOARD SHIPPING BOX IS 16” X 10” X 10” 5. MAXIMUM NUMBER OF UNITS (MPQ) PER BOX IS 120 CONVERTERS. 6. BOX IS TOP FILLED WITH ANTI-STATIC SHIPPING PEANUTS Murata Power Solutions, Inc. This product is subject to the following operating 129 Flanders Road, Westborough MA 01581 U.S.A. requirements and the Life and Safety Critical Application Sales ISO 9001 and 14001 REGISTERED Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2018 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_ICH_360W_A04 Page 17 of 17