BAQW

DC-DC Converter
Bricks, Open/Enclosed
BAQW SERIES, 1/4 BRICK, UP TO 200W, 4:1 INPUT RANGE
FEATURES:
5 year warranty
Output current up to 25A
1500Vdc isolation voltage
Efficiency up to 93%
Operating temperature range -40
Under voltage, over current, short circuit,
℃
to +85
℃
over voltage protection
Remote on/off
Adjustable output voltage
Model
BAQ48W-33V25
BAQ48W-120V17
Input voltage
(Vdc)
Output voltage
(Vdc)
Output current
(A)
Efficiency
Typ.
3.3
25.0
89%
12.0
16.67
92%
48(18~60)
Notes:
1. Other input and output models may available on request;
2. You may request for the models with heatsink, plus “R” in the suffix, e.g. BAQ48W-33V25R.
ELECTRICAL
Input voltage range
Wide 48Vdc
18-72Vdc
OFF: High level or left close
Negative logic
ON: Low level or grounded
Remote control
ON: High level or left open
Positive logic
OFF: Low level or grounded
Output power
Input voltage range
Output voltage
Single output
Output voltage accuracy
Input voltage range
Output voltage adjustable
Positive logic
±10%
Line regulation
Full load
±0.2%
Load regulation
10%-100% full load
±0.5%
Dynamic response
(transient/recovery time)
30-200W
1.2/1.5/1.8/2.5/3.3/5/12Vdc
±1%
25%-50%-75% load capability
Ripple and noise
Parallel test, 20MHz wide range
Operating frequency
Typical
Isolation voltage
Output=12V, 200mVp-p
Other, 100mVp-p max.
300KHz typ.
Input to output
1500Vdc
Input to case
1050Vdc
Output to case
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∆Vo/∆t: ±4.0%/500μs
Page:
500Vdc
1/4
Date: 08/16/2014
DC-DC Converter
Bricks, Open/Enclosed
BAQW SERIES, 1/4 BRICK, UP TO 200W, 4:1 INPUT RANGE
ELECTRICAL
Isolation resistance
---
10MΩ
Safety
---
Temperature coefficient
---
Operating temperature range
Auxiliary heat sink
Storage temperature range
---
Over temperature protection
Typical
Under voltage protection
---
Yes
Over current protection
---
Yes
Short circuit protection
---
Yes
Over voltage protection
---
Yes
Relative humidity
---
95% max.
MTBF
Bellcore TR-332, 25
IEC-60950-1, UL-60950-1
EN-60950-1, GB4943
200ppm
℃ to +85℃
-40℃ to +125℃
110℃ typ.
-40
℃
2000KHrs
Notes: All the parameters are measured at 25℃ ambient temperature, humidity < 75%, nominal input voltage,
full load and after warm-up, unless otherwise specified.
MECHANICAL
WITHOUT HEATSINK
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WITH HEATSINK
Page:
2/4
Date: 08/16/2014
DC-DC Converter
Bricks, Open/Enclosed
BAQW SERIES, 1/4 BRICK, UP TO 200W, 4:1 INPUT RANGE
MECHANICAL
PCB LAYOUT
CONNECTION
PIN #
SINGLE
1
-Vin
2
REM
3
+Vin
4
GND
5
-S
6
TRIM
7
+S
8
+Vo
Note:
* Unit is mm(inch).
DERATING CURVE
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EFFICIENCY CURVE
Page:
3/4
Date: 08/16/2014
DC-DC Converter
Bricks, Open/Enclosed
BAQW SERIES, 1/4 BRICK, UP TO 200W, 4:1 INPUT RANGE
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.
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Page:
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Date: 08/16/2014