V25
CHB50W SERIES
33 TO 50 WATT WIDE INPUT
DC-DC CONVERTERS
SINGLE OUTPUT
FEATURES
* 33-50W Isolated Output
* Efficiency to 87%
* 300KHz Switching Frequency
* 4:1 Input Range
* Regulated Outputs
* Continuous Short Circuit Protection
* Five-Sided Shield Metal Case
* Half-Brick Size Meet Industrial Standard
* CE Mark Meets 2004/108/EC
* UL60950-1 Approval (Except 28 Vout)
* Safety Meets UL60950-1, EN60950-1 and IEC60950-1
OUTPUT CURRENT INPUT CURRENT
MODEL INPUT OUTPUT CAPACITOR
% EFF.
NUMBER VOLTAGE VOLTAGE LOAD MAX.
MIN. MAX. NO LOAD FULL LOAD
CHB50W-24S33 9-36 VDC 3.3 VDC 0 mA 10 A 50 mA 1740 mA 79 10000uF
CHB50W-24S05 9-36 VDC 5 VDC 0 mA 10 A 50 mA 2570 mA 81 10000uF
CHB50W-24S12 9-36 VDC 12 VDC 0 mA 4.16 A 50 mA 2510 mA 83 4160uF
CHB50W-24S15 9-36 VDC 15 VDC 0 mA 3.33 A 50 mA 2448 mA 85 3330uF
CHB50W-24S24 9-36 VDC 24 VDC 0 mA 2.08 A 50 mA 2476 mA 84 2080uF
CHB50W-24S28 9-36 VDC 28 VDC 0 mA 1.78 A 50 mA 2510 mA 83 1780uF
CHB50W-24S48 9-36 VDC 48 VDC 0 mA 1.04 A 50 mA 2506 mA 83 1040uF
CHB50W-48S33 18-75 VDC 3.3 VDC 0 mA 10 A 50 mA 848 mA 81 10000uF
CHB50W-48S05 18-75 VDC 5 VDC 0 mA 10 A 50 mA 1255 mA 83 10000uF
CHB50W-48S12 18-75 VDC 12 VDC 0 mA 4.16 A 50 mA 1223 mA 85 4160uF
CHB50W-48S15 18-75 VDC 15 VDC 0 mA 3.33 A 50 mA 1196 mA 87 3330uF
CHB50W-48S24 18-75 VDC 24 VDC 0 mA 2.08 A 50 mA 1209 mA 86 2080uF
CHB50W-48S28 18-75 VDC 28 VDC 0 mA 1.78 A 50 mA 1223 mA 85 1780uF
CHB50W-48S48 18-75 VDC 48 VDC 0 mA 1.04 A 50 mA 1238 mA 84 1040uF
NOTE: 1. Nominal Input Voltage 24, 48VDC
1 V25
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25 Unless Otherwise Noted
INPUT SPECIFICATIONS: GENRAL SPECIFICATIONS:
Input Voltage Range............ 24V .............. 9 36V Efficiency ...................................................................... See Table
48V .................. 18 75V Isolation Voltage ... Input/Output, Input/Case, Output/Case ... 1500VDC min.
7
Input Surge Voltage (100ms max.) .... 24V ......... 50Vdc max. Iso la ti o n Re si sta n ce .................................................. 10 ohm min.
48V ............. 100Vdc max.
Isolation Capacitance ....... 1000pF typ.
Under Voltage Lockout: Switching Frequency ...................................... 300KHz typ.
24Vin . power up ... 8.8V, power down .. 8V
Operating Case Temperature ...................... -40 to 100
48Vin . power up .... 17V, power down 16V
Storage Temperature ....................... -55 to +105
Positive Logic Remote On/Off (note3&4) Thermal Shutdown Case Temp. ....... 100 typ.
Input Filter ..... Pi Type Humidity ...................................................... 95% RH max. Non condensing
MTBF . MIL-STD-217F, GB, 25 , Full Load .. 1000Khrs typ.
OUTPUT SPECIFICATIONS:
Voltage Accuracy (note7) ....................................... 1.0% max. x
Dimensions ........................ 2.28 2.40x0.50 inches (57.9x61.0x12.7 mm)
Transient Response: 25% Step Load Change .. <500s Case Material ......................................... Aluminum
Weight .... 94g
External Trim Adj. Range 10%
Ripple & Noise, 20MHz BW (note5)
NOTE:
3.3V&5V .. 40mV RMS max., 100mV pk-pk max. 1. Measured from high line to low line.
12V&15V . 60mV RMS max., 150mV pk-pk max. 2. Measured from full load to zero load.
24V ..... 100mV RMS max., 240mV pk-pk max. 3. Logic compatibility ... open collector ref to -input
28V ..... 100mV RMS max., 280mV pk-pk max. Module on ..... >3.5VDC to 75VDC or open circuit
48V ..... 200mV RMS max., 480mV pk-pk max. Module off ..... <0.8VDC
4. Suffix to the model number with negative logic remote on/off.
Temperature Coefficient ............................................ 0.03%/C
Short Circuit Protection .................................... Continuous Module on ...... <0.8VDC
Module off ............... >3.5VDC to 75VDC or open circuit
Line Regulation (note1&7) ......................................... 0.2% max.
Load Regulation (note2&7) ........................................ 0.2% max. 5. Output ripple and noise measured with 10uF tantalum and 1uF ceramic
Over Voltage Protection Trip Range, % Vo nom. .................. 115-140% capacitor across output. (48V: 1uF ceramic cap. only)
Current Limit ..................... 110% -160% Nominal Output 6. Suffix -C to the model number with clear mounting insert (3.2mm DIA.)
Start up time ...... 5ms typ. 7. Require a 47uF aluminum capacitor connected between +Vout and Vout
for 48Vout models.
CASE HB
All Dimensions In Inches(mm)
Tolerances Inches: X.XX= 0.02 , X.XXX= 0.010
Millimeters: X.X= 0.5 , X.XX=0.25
Mounting Inserts
BOTTOM VIEW
M3*0.5 Through 4pl.
Pin Function
+Vin
1
2
ON/OFF
CASE
3
4 -Vin
5 -Vout
-Sense
6
7 Trim
8 +Sense
9 +Vout
EXTERNAL OUTPUT TRIM
REMOTE ON/OFF CONTROL
+SENSE (8) +SENSE (8)
ON/OFF (2)
TRIM DOWN
10K ohms
TRIM (7) TRIM (7)
HIGH SIGNAL HERE TRIMPOT
DISABLE OUTPUT
TRIM UP
-VIN (4)
-SENSE (6) -SENSE (6)
2