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ICH-500 Datasheet(PDF) 5 Page - Murata Power Solutions Inc. |
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ICH-500 Datasheet(HTML) 5 Page - Murata Power Solutions Inc. |
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5 / 17 page  www.murata-ps.com/support MDC_ICH_500W_A04 Page 5 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 < 0.1 470 µF Inrush Transient Vin = 36V (0.4V/µs) no input external capacitor 0.4 1 A2s Input Terminal Ripple Current, ic 25 MHz bandwidth, 100% Load (Fig. 2) 550 mARMS 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 Output Ripple and Noise - 20MHz bandwidth (Fig. 3) 100% Load, Cext = 470 µF/70m + 1 µF ceramic 280 380 mVPK-PK 50 85 mVRMS External Load Capacitance Full Load (resistive) -40 ºC < Ta < +105 ºC Cext ESR 470 2200 µF 10 100 m 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 ARMS Dynamic Response Load change 50% - 75% -50%, di/dt = 1A/µs Co = 470 µF/70m + 1 µF ceramic ±270 ±410 mV Load change 50% - 100% - 50%, di/dt=1A/µs Co = 470 µF/70m + 1 µF ceramic ±500 mV Setting Time to 1% of Vout 800 µs Efficiency 100% Load Vin = 24V 94.3 95.0 95.7 % Vin = 12V 93.1 93.8 94.5 % 50% Load Vin = 24V 95.0 95.7 96.4 % Vin = 12V 94.1 94.8 95.5 % |
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