BAS

DC-DC Converter
Bricks, Open/Enclosed
BAS SERIES, 1/16 BRICK, UP TO 60W
FEATURES:
5 year warranty
Output current up to 30A
1500Vdc isolation voltage
Efficiency up to 91%
Operating temperature range -40
Under voltage, over current, short circuit,
℃
to +85
℃
over voltage protection
Remote on/off
Adjustable output voltage
Model
BAS48-12V30
BAS48-33V15
BAS48-33V10
BAS48-33V20
BAS48-50V6
BAS48-50V12
Input voltage
(Vdc)
Output voltage
(Vdc)
Output current
(A)
Efficiency
Typ.
1.2
30.0
83%
3.3
15.0
89%
3.3
10.0
89%
3.3
20.0
89%
5.0
6.0
91%
5.0
12.0
89%
48(36~72)
Notes:
1. Other input and output models may available on request;
2. You may request the models for different packages: Through hole package and SMT package;
for SMT package, plus “SMT” in the suffix, e.g. BAS48-12V30SMT.
ELECTRICAL
Input voltage range
48Vdc
36-72Vdc
ON: Low level or grounded
Negative logic
OFF: High level or close
Remote control
OFF: Low level or grounded
Positive logic
ON: High level or open
Output power
Input voltage range
Output voltage
Single output
1.2/1.8/3.3/5.0Vdc
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)
33-66W
25%-50%-75% load capability
Ripple and noise
Parallel test, 20MHz wide range
Isolation voltage
Input to output
Isolation resistance
---
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∆Vo/∆t: ±4.0%/500μs
75mVp-p max.
1500Vdc
10MΩ
Page:
1/4
Date: 11/07/2015
DC-DC Converter
Bricks, Open/Enclosed
BAS SERIES, 1/16 BRICK, UP TO 60W
ELECTRICAL
IEC-60950-1, UL-60950-1
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
EN-60950-1, GB4943
300ppm
℃ 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
THROUGH HOLE PACKAGE
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SMT PACKAGE
Page:
2/4
Date: 11/07/2015
DC-DC Converter
Bricks, Open/Enclosed
BAS SERIES, 1/16 BRICK, UP TO 60W
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: 11/07/2015
DC-DC Converter
Bricks, Open/Enclosed
BAS SERIES, 1/16 BRICK, UP TO 60W
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:
4/4
Date: 11/07/2015