50-200 Watts
ICH/IFH Series
xppower.com
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2:1 & 4:1 Input Ranges
Efficiency up to 90%
Single Output
-40 °C to +100 °C Operating Temperature
Continuous Short Circuit Protection
Five-sided Metal Case
Remote On/Off
Specification
Input
General
Input Voltage Range
• See tables
Efficiency
• See tables
Input Current (no load) • See tables
Isolation Voltage
• 1500 VDC Input to Output
1500 VDC Input to Case
1500 VDC Output to Case
• 107 Ω ꢀin
Input Reverse Voltage • None
Protection
Isolation Resistance
Switching Frequency
Input Filter
• Pi network
• ICH50/ICH7548W/IFH200: 300 kHz typical
ICH7512/ICH7524: 400 kHz typical
ICH100/ICH150: 500 kHz typical
Undervoltage Lockout • 12 Vin, power up 8.8 V, down 8.0 V
24 Vin, power up 17.0 V, down 16.0 V
48 Vin, power up 34.0 V, down 32.5 V
Environmental
Output
Operating Case
Temperature
• -40 °C to +100 °C, see derating curve
Output Voltage Trim
Initial Set Accuracy
Line Regulation
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10%
1% ꢀaꢁ
Storage Temperature
• ICH100/150 & IFH200: -40 °C to +105 °C
ICH50/75: -55 °C to +105 °C
0.2% ꢀaꢁ ꢀeasured froꢀ high line
to low line
Load Regulation
•
0.2% ꢀaꢁ ꢀeasured froꢀ 0-100% load
EMC & Safety
Transient Response
• 5% ꢀaꢁ deviation, recovery to within
1% in 500 µs, 25% step load change
Emissions
• EN55022, level A conducted
ESD Immunity
• EN61000-4-2, level 2
Perf Criteria B
Ripple & Noise
• 2.5, 3.3 & 5 V ꢀodels: 100 ꢀV pk-pk
12 & 15 V ꢀodels: 150 ꢀV pk-pk
24, 28 & 48 V ꢀodels: 1% ꢀaꢁ pk-pk
(20 MHz bandwidth). See note 3
Radiated Immunity
Conducted Immunity
Safety Approvals
• EN61000-4-3, 3 V/ꢀ
Perf Criteria B
• EN61000-4-6, 3 V rꢀs
Perf Criteria B
Overvoltage Protection • 115-140%
Short Circuit Protection • Continuous
• UL60950-1
Temperature
Coefficient
•
0.03%/°C
Current Limit
• 110-140% noꢀinal output
• See note 1 & 2
Remote On/Off
Thermal Shutdown
• Case teꢀperature +100 °C