DC-DC
50-200 Watts
ICH/IFH Series
•
•
•
•
•
•
•
2:1 & 4:1 Input Ranges
Efficiency up to 90%
Single Output
xppower.com
-40 °C to +100 °C Operating Temperature
Continuous Short Circuit Protection
Five-sided Metal Case
3 Year Warranty
Specification
Input
Input Voltage Range
Input Current (no load)
Input Reverse Voltage
Protection
Input Filter
Undervoltage Lockout
• See tables
• See tables
• None
• Pi network
• 2:1 Input Models:
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
4:1 Input Models:
24 Vin, power up 8.8 V, down 8.0 V
48 Vin, power up 17.0 V, down 16.0 V
General
Efficiency
Isolation Voltage
• See tables
• 1500 VDC Input to Output
1500 VDC Input to Case
1500 VDC Output to Case
• 10
7
ohms
min
• ICH50/75 12-24V models: 400 kHz typical
ICH50/75 48 V models: 300 kHz typical
ICH50W/75W: 300 kHz typical
ICH100/ICH150: 500 kHz typical
ICH100W: 250 kHz typical
IFH200: 350 kHz typical
• ICH50: 18.3 W/in
3
ICH75: 27.4 W/in
3
ICH100: 36.6 W/in
3
ICH150: 54.8 W/in
3
IFH200: 34.8 W/in
3
• ≥790 kHrs to MIL-HDBK-217F
at 25 °C, GB
Isolation Resistance
Switching Frequency
Power Density
Output
• ±10%
• ±1% max (ICH100: ±1.5%)
• ±0.2% max measured from high line
to low line
Load Regulation
• ±0.2% max measured from 0-100% load
Transient Response
• 5% max deviation, recovery to within
1% in 500 µs, 25% step load change
Ripple & Noise
• 3.3 & 5 V models: 100 mV pk-pk
12 & 15 V models: 150 mV pk-pk
24, 28 & 48 V models: 1% max pk-pk
ICH50/75 - 3.3 V, 5 V models: 75 mV
12 V, 15 V models: 100 mV
20 MHz bandwidth (see note 3)
Overvoltage Protection
• 115-140%
Short Circuit Protection
• ICH50/75/100W/IFH200-: Trip & restart
(hiccup mode) with auto recovery
ICH50W/75W/100/150 & IFH200: Current
limit, auto recovery
Temperature
• ±0.03%/°C
Coefficient
Current Limit
• IFH200: 110-150% nominal output, all
other models: 110-160% nominal output
Remote On/Off
• See note 1 & 2
Thermal Shutdown
• ICH50/50W/75/75W/100/150:
Thermal shutdown when case temperature
reaches 100 °C, auto recovery when case
temperature < +60 °C
ICH100W/IFH200:
Thermal shutdown when case temperature
reaches 105 °C, auto recovery when case
temperature <+90 °C
Output Voltage Trim
Initial Set Accuracy
Line Regulation
MTBF
Environmental
Operating Case
Temperature
Storage Temperature
Shock
Vibration
• -40 °C to +100 °C, see derating curve
• ICH50/75: -55 °C to +105 °C
ICH100/150 & IFH200: -40 °C to +105 °C
• 30 g pk, half sine wave for 18 ms, 3 pulses
per face, all 6 faces tested on all 3 axes
• 5-500 Hz at 3 g, 10 mins per axis
EMC & Safety
Emissions
ESD Immunity
EFT/Burst
Surge
Conducted Immunity
Magnetic Field
Safety Approvals
• EN55032, level A conducted with external
components
• EN61000-4-2, level 2 Perf Criteria A
• EN61000-4-4, level 1, Perf Criteria A
• EN61000-4-5, installation class 1,
Perf Criteria A
• EN61000-4-6, 3 V rms Perf Criteria A
• EN61000-4-8, 1 A/m, Perf Criteria A
• UL60950-1
DC-DC
Models & Ratings
Input Voltage
Output Voltage
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
Output Voltage
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
Output Voltage
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
Output Voltage
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
28.0 V
48.0 V
Output Current
20.00
20.00
8.30
6.70
4.17
20.00
20.00
8.30
6.70
4.17
A
A
A
A
A
A
A
A
A
A
Input Current
(4)
No Load
50
50
50
50
50
50
50
50
50
50
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Full Load
3480
5020
4880
4925
4905
1720
2480
2442
2463
2463
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ICH/IFH Series
Efficiency
79%
83%
85%
85%
85%
80%
84%
85%
85%
85%
Efficiency
81%
83%
85%
86%
86%
80%
86%
86%
87%
88%
Efficiency
79%
83%
85%
85%
85%
Efficiency
79%
83%
85%
85%
85%
89%
90%
Model Number
(2)
ICH10024S3V3
ICH10024S05
ICH10024S12
ICH10024S15
ICH10024S24
ICH10048S3V3
ICH10048S05
ICH10048S12
ICH10048S15
ICH10048S24
Model Number
(2)
ICH10024WS3V3
ICH10024WS05
ICH10024WS12
ICH10024WS15
ICH10024WS24
ICH10048WS3V3
ICH10048WS05
ICH10048WS12
ICH10048WS15
ICH10048WS24
Model Number
(2)
ICH15048S3V3
ICH15048S05
ICH15048S12
ICH15048S15
ICH15048S24
Model Number
(2)
IFH20048S3V3
IFH20048S05
IFH20048S12
IFH20048S15
IFH20048S24
IFH20048S28
IFH20048S48
18-36 VDC
(24 V nominal)
36-75 VDC
(48 V nominal)
Input Voltage
Output Current
20.00
20.00
8.30
6.70
4.17
20.00
20.00
8.30
6.70
4.17
A
A
A
A
A
A
A
A
A
A
9-36 VDC
(24 V nominal)
18-75 VDC
(48 V nominal)
Input Current
(4)
No Load
Full Load
35 mA
3374 mA
35 mA
4990 mA
35 mA
4902 mA
35 mA
4817 mA
35 mA
4849 mA
30 mA
1708 mA
30 mA
2422 mA
30 mA
2408 mA
30 mA
2381 mA
30 mA
2367 mA
Input Current
(4)
No Load
25 mA
25 mA
25 mA
25 mA
25 mA
Full Load
2.60 A
3.70 A
3.60 A
3.60 A
3.60 A
Input Current
(4)
No Load
25 mA
25 mA
25 mA
25 mA
25 mA
25 mA
25 mA
Full Load
3.5 A
5.0 A
5.0 A
5.0 A
5.0 A
4.7 A
4.7 A
Input Voltage
Output Current
30.00
30.00
12.50
10.00
6.25
A
A
A
A
A
36-75 VDC
(48 V nominal)
Input Voltage
Output Current
40.00
40.00
17.00
13.30
8.33
7.14
4.20
A
A
A
A
A
A
A
36-75 VDC
(48 V nominal)
Notes
1. Logic compatibility: Module On = Open circuit (or >3.5 VDC for ICH100 W models). Module Off = <0.8 VDC (<1.8 VDC for ICH100 W models).
2. Add suffix ‘N’ to the model number to receive the unit with negative logic Remote On/Off.
3. Ripple & noise is measured with a 10 µF tantalum capacitor and 0.1 µF ceramic capacitor across output.
4. Input current specified at 24 V for 18-36 & 9-36 VDC and 48 V for 36-75 & 18-75 VDC models.
5. For dual output models available, contact sales.
Mechanical Details
ICH50 to ICH150
Mounting Inserts
M3*0.5 Through 4pl.
BOTTOM VIEW
IFH200
0.18 min.
(4.6)
M3*0.5 Through 4pl.
BOTTOM VIEW
0.28
(7.2)
4
1.40
(35.6)
0.60
(15.2)
2.00
(50.8)
2
5
ø0.08
(2.03)
2.40
(61.0)
4
5
ø0.08
(2.03)
Pins 5 & 9
0.30
(7.6)
3
6
7
8
ø0.04
(1.02)
2.40
(61.0)
2.00
(50.8)
3
6
7
0.30
(7.6)
2
8
0.70
(17.8)
1
9
ø0.04
(1.02)
Pins 1-4, 6-8
1
9
4.20
(106.7)
0.52
(13.2)
SIDE VIEW
PIN CONNECTIONS
Pin
Function
1
+Vin
2
On/Off
3
Case*
4
-Vin
5
-Vout
6
-Sense
7
Trim
8
+Sense
9
+Vout
* IFH200: N.C.
1.90
(48.3)
2.28
(57.9)
0.50
(12.7)
SIDE VIEW
4.60
(116.8)
Notes
1. All dimensions are in inches (mm)
2. Weight: ICH50: 0.194 lbs (88 g)
ICH50W: 0.207 lbs (94 g)
ICH75: 0.202 lbs (92 g)
ICH75W: 0.207 lbs (94 g)
ICH100 : 0.209 lbs (95 g)
ICH150 : 0.220 lbs (100 g)
IFH200: 0.425 lbs (193 g)
3. Case tolerance: ±0.02 (±0.50)
4. Pin diameter tolerance: ICH series ±0.002 (±0.05), ±0.004 (±0.1),
IFH series ±0.006 (±0.15)
5. Case Material: ICH50/75/100/150 - Aluminium
IFH200 - Aluminium baseplate with plastic case
6. Pin pitch tolerance: ±0.01 (±0.25)
Derating Curves
THERMAL RESISTANCE vs AIR FLOW
Air Flow Rate
Natural Convection 20 ft./min (0.1 m/s)
100 ft./min (0.5 m/s)
200 ft./min (1.0 m/s)
300 ft./min (1.5 m/s)
400 ft./min (2.0 m/s)
500 ft./min (2.5 m/s)
600 ft./min (3.0 m/s)
700 ft./min (3.5 m/s)
800 ft./min (4.0 m/s)
ICH Typical Rca
7.12 ˚C/W
6.21 ˚C/W
5.17 ˚C/W
4.29 ˚C/W
3.64 ˚C/W
2.96 ˚C/W
2.53 ˚C/W
2.37 ˚C/W
2.19 ˚C/W
ICH/IFH Series
IFH Typical Rca
3.82 ˚C/W
3.23 ˚C/W
2.71 ˚C/W
2.28 ˚C/W
1.92 ˚C/W
1.68 ˚C/W
1.50 ˚C/W
1.35 ˚C/W
1.23 ˚C/W
DC-DC
Temperature Rise = Pd x Rca, Where Pd = P
in
- P
out
or P
out
(1-
η
) /
η,
Where
η
= efficiency
Maximum Power Dissipation vs Ambient Temperature and Air Flow (without Heatsink)
ICH50-150S
Natural Convection
20ft./min. (0.1 m/s)
100 ft./min. (0.5 m/s)
IFH200S
Natural Convection
20ft./min. (0.1 m/s)
Power Dissipated Pd (W)
45
40
35
30
25
20
15
10
5
0
0
10
20
30
40
50
60
70
80
90
100
45
Power Dissipated Pd (W)
40
100 ft./min. (0.5 m/s)
200 ft./min. (1.0 m/s)
200 ft./min. (1.0 m/s)
300 ft./min. (1.5 m/s)
35
30
25
20
15
600 ft./min. (3.0 m/s)
300 ft./min. (1.5 m/s)
400 ft./min. (2.0 m/s)
500 ft./min. (2.5 m/s)
600 ft./min. (3.0 m/s)
700 ft./min. (3.5 m/s)
800 ft./min. (4.0 m/s)
400 ft./min. (2.0 m/s)
500 ft./min. (2.5 m/s)
10
5
0
0
10
20
30
40
50
60
70
80
90
100
700 ft./min. (3.5 m/s)
800 ft./min. (4.0 m/s)
Ambient Temperature (˚C)
Ambient Temperature (C)
Application Notes
External Output Trimming
+SENSE
TRIM DOWN
TRIM
TRIM UP
-SENSE
-SENSE
TRIM
10K ohms
TRIMPOT
+SENSE
LOGIC TABLE
Logic State (Pin 2)
Logic Low Switch Closed
Logic High Switch Open
Positive Logic
Module Off
Module On
Negative Logic (-N)
Module On
Module Off
Output may be trimmed by ±10% (±5% for dual output models) with a fixed
resistor or an external trimpot as shown.
Contact sales for details.
Output Noise
+Vo
0.1 µF
Ceramic
Resistive
Load
Output noise is measured with a 10 µF tantalum capacitor
and 0.1 µF ceramic capacitor across output.
Oscilloscope limited to 20 MHz bandwidth
10 µF
Solid tantalum
-Vo
To
Oscilloscope
24 Oct 17
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