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PDF BP5232-25A Data sheet ( Hoja de datos )
| Número de pieza | BP5232-25A | |
| Descripción | (BP5232-25A - BP5234-33A) DC / DC converter | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A
Power Module
DC / DC converter
BP5232-25A / BP5232-33A / BP5233-33A /
BP5234-33A
The BP5232-25A, BP5232-33A, BP5233-33A and BP5234-33A are DC / DC converters that use PWM system and VIF
system. They contain control circuits, switching devices and coils, and operate by only connecting an I/O smoothing
capacitor.
With a high efficiency of power conversion, the modules are available in stand-alone SIP packages with no heat sink
required.
!Applications
Power supplies for copiers, personal computers, facsimiles, industrial equipment, and AV eqipment
!Features
1) High power conversion efficiency. (BP5233-33A : 93%)
2) Large output current.
3) Low current consumption with no load. (BP5233-33A : 200µA Typ.)
4) High conversion efficiency. (85% at output current of 100mA)
5) Applicable to various purposes by fine-adjusting output voltage with external circuits.
6) Built-in ON / OFF switch.
7) Heat sink unnecessary.
www.DataSheet.co.kr
! Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
BP5232-25A BP5232-33A BP5233-33A BP5234-33A
Input voltage
Output current
VIN 7 V
IO 2 ∗ 2 ∗ 3 ∗ 4 ∗ A
Operating temperature
Topr
−20 ~ +55
°C
Storage temperature
Tstg
∗ Derating required according to the input voltage and ambient temperature..
−25 ~ +80
°C
!Recommended operating conditions (Ta=25°C)
Parameter
Input voltage
Symbol
VIN
Min.
4.5
Typ.
5.0
Max.
5.5
Unit
V
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A
Power Module
!Circuit operation
(1) The basic application examples are shown in Fig.3. The externally installed parts are only the input and output
smoothing capacitors.
(2) Switching on and off the output voltage is allowed. The output can be switched off by making pin 7 to be low or open
(high impedance). (See Fig.4.)
(3) Fine adjustment of the output voltage is allowed. The fine adjustment of output voltage can be performed from pin 1
via the resistor by connecting the output terminal (pin 2, 3) and GND. (See Fig.5.)
Basic application
BP5232-25A / BP5232-33A
10 9
7654321
VIN
+
1000µF
+
470µF
BP5233-33A / BP5234-33A
11 10 9
7654321
VO VIN
+
1000µF
+
470µF
VO
Output ON / OFF control
BP5232-25A / BP5232-33A
10 9
7654321
VIN
SW
+
1000µF
+
470µF
Fig.3
BP5233-33A / BP5234-33A
VO
VIN
www.DataSheet.co.kr
11 10 9
7654321
SW
+
1000µF
+
470µF
VO
Fig.4
!Application example
Output voltage fine adjustment
BP5232-25A / BP5232-33A
10 9
7654321
VIN
SW
+1000µF
+
470µF
VO'
R1
VO
R2
BP5233-33A / BP5234-33A
11 10 9
VIN
7654321
SW
+1000µF
VO' value setting equations
( )VO'=VO 1+ R1
R2
R1+R2 ≤ 50kΩ
It is recommended that the output voltage should be adjusted
within the range of ±10% of the rated output voltage, so that
the performance of the module can fully be exhibited.
Fig.5
VO'
R1
VO
R2
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet BP5232-25A.PDF ] | |
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