1
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CHB50 SERIES
25 TO 50 WATT WIDE INPUT
DC-DC CONVERTERS
SINGLE OUTPUT
FEATURES
* 25W-50W Isolated Output
* Efficiency to 89%
* 300KHz Switching Frequency
* 2 : 1 Input Range
* Regulated Outputs
* Continuous Short Circuit Protection
* Five-Sided Metal Case
* Half-Brick size meet industrial standard
* CE Mark Meets 2006/95/EC, 93/68/EEC, and 89/336/EEC
* Safety Meets UL60950-1, EN60950-1, and IEC60950-1
* UL60950-1 and EN60950-1 Approval
MODEL
NUMBER INPUT
VOLTAGE OUTPUT
VOLTAGE
OUTPUT CURRENT INPUT CURRENT ％
EFF. Capacitor
Load max.
MIN. MAX.
NO LOAD FULL LOAD
CHB50-12S25 9 -18 VDC 2.5 VDC 0 mA 10 A 50 m
A
2740 mA 76 10000uF
CHB50-12S33 9 -18 VDC 3.3 VDC 0 mA 10 A 50 m
A
3481 mA 79 10000uF
CHB50-12S05 9 -18 VDC 5 VDC 0 mA 10 A 50 m
A
5020 mA 83 10000uF
CHB50-12S12 9 -18 VDC 12 VDC 0 mA 4.16 A 50 m
A
4781 mA 87 4000uF
CHB50-12S15 9 -18 VDC 15 VDC 0 mA 3.33 A 50 m
A
4781 mA 87 2000uF
CHB50-12S24 9 -18 VDC 24 VDC 0 mA 2.08 A 50 m
A
4781 mA 87 1500uF
CHB50-24S25 18-36 VDC 2.5 VDC 0 mA 10 A 50 m
A
1335 mA 78 10000uF
CHB50-24S33 18-36 VDC 3.3 VDC 0 mA 10 A 50 m
A
1698 mA 81 10000uF
CHB50-24S05 18-36 VDC 5 VDC 0 mA 10 A 50 m
A
2450 mA 85 10000uF
CHB50-24S12 18-36 VDC 12 VDC 0 mA 4.16 A 50 m
A
2363 mA 88 10000uF
CHB50-24S15 18-36 VDC 15 VDC 0 mA 3.33 A 50 m
A
2363 mA 88 4000uF
CHB50-24S24 18-36 VDC 24 VDC 0 mA 2.08 A 50 m
A
2363 mA 88 2000uF
CHB50-48S25 36-75 VDC 2.5 VDC 0 mA 10 A 50 m
A
676 mA 77 10000uF
CHB50-48S33 36-75 VDC 3.3 VDC 0 mA 10 A 50 m
A
848 mA 81 10000uF
CHB50-48S05 36-75 VDC 5 VDC 0 mA 10 A 50 m
A
1240 mA 84 10000uF
CHB50-48S12 36-75 VDC 12 VDC 0 mA 4.16 A 50 m
A
1181 mA 88 10000uF
CHB50-48S15 36-75 VDC 15 VDC 0 mA 3.33 A 50 m
A
1181 mA 88 4000uF
CHB50-48S24 36-75 VDC 24 VDC 0 mA 2.08 A 50 m
A
1168 mA 89 2000uF
NOTE: 1. Nominal Input Voltage 12, 24 or 48VDC
2
+SENSE (8)
TRIM (7)
- SENSE (6)
TR IM UP
TR IM D OWN
+SENSE (8)
TRIM (7)
- SENSE (6)
10K ohms
TRIMPOT
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS: GENRAL SPECIFICATIONS:
Input Voltage Range ....…………….................... 12V ................. 9-18V Efficiency ........................…………................................................ See Table
24V ............... 18-36V Isolation Voltage ..................... Input/Output ……..….........… 1500VDC min.
48V ............... 36-75V Input/Case …..………….……. 1500VDC min.
Input Surge Voltage (100ms max.) …………. 12V …...... 25Vdc max. Output/Case ……...………….. 1500VDC min.
24V ........….50Vdc max. Isolation Capacitance ………………..………………………….… 1000pF Typ.
48V .......... 100Vdc max. Isolation Resistance ................................……………............... 107 ohm min.
Undervoltage lockout: Switching Frequency ....... (12/24)Vin. .........………….............. 400KHz, Typ.
12Vin ……….…… power up ---->8.8V, power down ----->8V 48Vin .....……….….….................... 300KHz, Typ.
24Vin …………… power up ---->17V, power down ----->16V Operating Case Temperature …..……………..................... –40℃ to 100℃
48Vin ……….… power up ---->34V, power down ----->32.5V Storage Temperature …………………………..................... -55℃ to +105℃
Positive Logic Remote ON/OFF ( see note 3 & 4 ) Thermal Shutdown, Case Temp. ………………….………..……. 100℃ Typ.
Input Filter ………………………………………............………... PI Type Humidity .................................................... 95% RH max. Non condensing
OUTPUT SPECIFICATIONS: MTBF ……. MIL-STD-217F, GB, 25℃, Full Load ……..…… 1000KHrs Typ.
Voltage Accuracy: ................................................................ ±1% max. Dimensions .............................. 2.28×2.40x0.50 inches (57.9 x61.0×12.7 mm)
Transient Response:25% Step Load Change …….........… <500u sec. Case Material .................................................………………….….. Aluminum
External Trim Adj. Range ……………………………………………
±10%
Weight …………………………………………………………………………. 88g
Ripple & Noise, 20MHz BW(see note 5) NOTE:
2.5 & 3.3V & 5V ………….. 20mV RMS, max. 1. Measured From High Line to Low Line
75mV pk-pk, max. 2. Measured From Full Load to Zero Load
12V & 15V …………......…. 30mV RMS, max. 3. Logic Compatibility ……... Open Collector ref to –Input
100mV pk-pk, max Module ON ………………………………………..… …. Open Circuit
24V …………………..……100mV RMS, max. Module OFF ………………………………………….…….. < 0.8Vdc
240mV pk-pk, max. 4. Suffix "N" to the Model Number with Negative Logic Remote ON/OFF
Temperature Coefficient ..............................................…..... ±0.03%/°C 5. Output Ripple and Noise measured with 10uF tantalum and 1uF Ceramic
Short Circuit Protection ...........…...................................... Continuous capacitor across output
Line Regulation ( see note 1 ) ……................................…. ±0. 2% max. 6. Suffix “-C” to the Model Number with Clear Mounting Insert (3.2mm DIA.)
Load Regulation ( see note 2 ) ……............…........ ............ ±0.2% m ax.
Over Voltage Protection trip Range, % Vo nom. .................. 115-140%
Current Limit ........................................ 110% ~150% Nominal Output
Start up time …………………………….…………..……..…... 5ms Typ.
6Trim
+Sense
+Vout
9
7
8
BOTTOM VIEW
M3*0.5 Through 4pl.
Function
ON/OFF
CASE
-Vin
-Vout
-Sense
+Vin
3
4
5
Pin
1
2
Mounting Inserts
Millimeters: X.X= ±0.5 , X.XX=±0.25
All Dimensions In Inches(mm)
CASE HB
Tolerances Inches: X.XX= ±0.02 , X.XXX= ±0.010
REMOTE ON/OFF CONTROL EXTERNAL OUTPUT TRIM
ON/ OFF (2)
-V IN (4)
HIGH S IGNAL HERE
D ISA BLE OUTPUT
