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Número de pieza | APE1901 | |
Descripción | Step-up PWM DC/DC Converter | |
Fabricantes | Advanced Power Electronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de APE1901 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! Advanced Power
Electronics Corp.
Step-up PWM DC/DC Converter
APE1901
GENERAL DESCRIPTION
The APE1901 is high efficient step-up DC/DC converter. Large output current is
possible having a built in internal N channel MOSFET, and using an external coil and
diode.
The APE1901 can be operated at switching frequencies of 500kHz allowing for easy
filtering and low noise, the size of the external components can be reduced.
Output voltage is programmable with 1.0V of standard voltage supply internal, and
using externally connected components, output voltage (FB) can be set up at will.
This converter also contains an error amplifier circuit as well as a soft-start circuit
that prevents inrush-current at startup. An enable function and thermal shutdown
functions are built inside.
FEATURES
- Input voltage: 3V to 15V
- Output voltage: 3.3V to 28V(±2.5%)
- Duty ratio: 0% to 80% PWM control
- Switch current: 3A(MAX)
- Oscillation frequency: 500KHz.
- Enable function
- Soft-start function
- Thermal Shutdown function
- Built-in internal SW N-channel MOS
- SOP-8L Pb-Free Package.
This datasheet contains new product information. Advanced Power Electronics Corp. reserves the rights to modify the product specification without notice. No liability is
assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
200815071-1/7
Downloaded from Elcodis.com electronic components distributor
1 page Advanced Power
Electronics Corp.
Step-up PWM DC/DC Converter
3. VCC=12V, VOUT=18V/1.8A
VCC=12V
L1
15uH
R3
100K
C3 C4
470uF 0.1uF
C7
option
U1
1 SGND
2 CE
3 Vcc
4 FB
Vss
Vss
SW
SW
APE1901
8
7
6
5
APE1901
D1
B340A
C5
470uF
Vout=+18V
R1
17K
C6
1u
R2
1K
VOUT
L1 Value
VIN=12V, ISW=3A
18V 24V
15uH
22uH
28V
27uH
4. VCC=3.0V, VOUT=5V/0.45A
VCC=3V
C3
470uF
R3
100K
C4
0.1uF
C7
Option
L1
15uH
U1
1 SGND
2 CE
3 Vcc
4 FB
Vss
Vss
SW
SW
APE1901
8
7
6
5
D1
B340A
C5
470uF
Vout=+5V
R1
4K
C8
22u
R2
1K
Function Descriptions
PWM Control
The APE1901 consists of DC/DC converters that employ a pulse-width modulation
(PWM) system.
In converters of the APE1901, the pulse width varies in a range from 0 to 80%,
according to the load current. The ripple voltage produced by the switching can easily
be removed through a filter because the switching frequency remains constant.
Therefore, these converters provide a low-ripple power over broad ranges of input
voltage and load current.
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5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet APE1901.PDF ] |
Número de pieza | Descripción | Fabricantes |
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