BCH [PAIRUI]
DC-DC Converter;
PAIRUI GROUP INC. 
DC-DC Converter
Bricks, Open/Enclosed
BCH SERIES, 1/2 BRICK, UP TO 350W
FEATURES:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
5 years warranty
1500Vdc isolation voltage
Wide(2:1) input voltage range
Efficiency up to 90%
Operating temperature range -40°C to +100°C
Under voltage, over current, short circuit,
overvoltage protection
ꢀ
ꢀ
Remote on/off
Adjustable output voltage
Input voltage
Output voltage
(Vdc)
Output current
Efficiency
Typ.
Model
(Vdc)
(A)
8.33
6.25
12.50
6.67
10.00
13.40
3.10
6.25
12.5
1.50
2.08
4.17
4.20
6.25
8.33
12.50
3.30
5.00
6.67
2.08
3.10
12(9.5~18)
12.0
84%
BCH12-120V8
BCH24-120V6
BCH24-120V13
BCH24-150V7
BCH24-150V10
BCH24-150V13
BCH24-240V3
BCH24-240V6
BCH24-280V13
BCH24-480V1
BCH24-480V2
BCH24-480V4
12.0
12.0
15.0
15.0
15.0
24.0
24.0
28.0
48.0
48.0
48.0
12.0
12.0
12.0
12.0
15.0
15.0
15.0
24.0
24.0
86%
86%
87%
87%
89%
87%
86%
91%
89%
86%
86%
89%
86%
86%
87%
90%
87%
87%
87%
87%
24(18~36)
BCH48-120V4
BCH48-120V6
BCH48-120V8
BCH48-120V13
BCH48-150V3
BCH48-150V5
BCH48-150V7
BCH48-240V2
BCH48-240V3
BCH48-240V4
BCH48-240V6
BCH48-240V13
BCH48-280V4
48(36~72)
24.0
24.0
24.0
28.0
4.16
6.25
12.5
3.57
88%
87%
87%
86%
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Page: 1 / 4
Date: 01/23/2014
DC-DC Converter
Bricks, Open/Enclosed
BCH SERIES, 1/2 BRICK, UP TO 350W
Input voltage
Output voltage
(Vdc)
28.0
Output current
Efficiency
Typ.
93%
Model
(Vdc)
(A)
12.5
1.10
4.00
6.0, 2.0
8.33
6.25
12.5
6.7
BCH48-280V13
48.0
88%
BCH48-480V1
48(36~72)
48.0
87%
BCH48-480V4
3.3, 12.0
24.0
84%
BCH48-33V6-120V2
48(31~60)
89%
BCH48-240V8
12.0
87%
BCH110-120V6
BCH110-120V13
BCH110-150V7
BCH110-150V10
BCH110-240V3
BCH110-240V6
BCH110-280V5
12.0
86%
15.0
87%
15.0
10.0
3.0
87%
110(66~154)
24.0
87%
24.0
6.25
86%
28.0
5.4
87%
Notes: other input and output models may available on request.
ELECTRICAL
24Vdc
18-36Vdc
Input voltage range
48Vdc
31-72Vdc
66-154Vdc
110Vdc
OFF: High level or left close
Negative logic
Positive logic
ON: Low level or ground
Remote control
ON: High level or left open
OFF: Low level or ground
45-350W
Output power
Input voltage range
Output voltage
Single output
12/15/24/28/48Vdc
±1%
Output voltage accuracy
Input voltage range, full load range
Output voltage regulation
Line regulation
Negative logic
Full load
±10%
±0.2%
±0.5%
Load regulation
10%-100% full load
Dynamic response
25%-50%-75% load capability
∆Vo/∆t: ±4.0%/500μs
(transient/recovery time)
48V, 480mVp-p max.
Other, 240mVp-p max.
300KHz typ.
Ripple and noise
Parallel test, 20MHz wide range
Operating frequency
Typical value
Input to output
Input to case
Output to case
---
1500Vdc
1050Vdc
500Vdc
30MΩ
Isolation voltage
Isolation resistance
www.pairuigroup.com
Page: 2 / 4
Date: 01/23/2014
DC-DC Converter
Bricks, Open/Enclosed
BCH SERIES, 1/2 BRICK, UP TO 350W
ELECTRICAL
IEC-60950-1, UL-60950-1
EN-60950-1, GB4943
200ppm
Safety
---
Temperature coefficient
PCB operating temperature
Storage temperature range
Over temperature protection
Under voltage protection
Over current protection
Short circuit protection
Over voltage protection
Relative humidity
---
---
-40°C to +100°C
-40°C to +105°C
110°C typ.
Yes
---
Typical
---
---
Yes
---
Yes
---
Yes
---
95% max.
Hole package
2x106Hrs
Packing
---
MTBF
Bellcore TR-332, 25°C
Notes: Unless otherwise specified, all the parameters of the test conditions are as follows: ambient temperature
25 , the nominal input voltage, pure resistive nominal load.
MECHANICAL
CONNECTION
PIN #
SINGLE
-Vin
FG
1
2
3
4
5
6
7
8
9
REM
+Vin
GND
-S
TRIM
+S
+Vo
PCB LAYOUT
www.pairuigroup.com
Page: 3 / 4
Date: 01/23/2014
DC-DC Converter
Bricks, Open/Enclosed
BCH SERIES, 1/2 BRICK, UP TO 350W
Note:
* Unit is mm(inch).
DERATING CURVE
EFFICIENCY CURVE
NOTES
RECOMMENDED TEST AND APPLICATION CIRCUIT
1. TVS&FUSE be helpful with over voltage protection and inrush limiting. Recommended FUSE better be 1.5~2times of the
rated current .
2. The input filter capacitor C6 could select the aluminum electrolytic capacitors or tantalum capacitors, and the withstand
voltage should be greater than the highest input voltage. Recommended capacitor should be between 22μF~100μF.
3. C1,C2 for the input filter capacitor,0.1~1μF high-frequency ceramics capacitor or chip capacitor are recommended. The
withstand voltage of output filter C5, C7 should be greater than the highest output voltage. Recommended capacitor of C7
better within 100μF and C5 connected with the chip to reduce the input voltage peak, recommended 0.1~1μF
high-frequency ceramics capacitor or chip capacitor.
www.pairuigroup.com
Page: 4 / 4
Date: 01/23/2014
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