参数资料
型号: KA3525A
厂商: Fairchild Semiconductor
文件页数: 1/6页
文件大小: 0K
描述: IC REG CTRLR PWM VM 16-DIP
标准包装: 25
PWM 型: 电压模式
输出数: 2
频率 - 最大: 430kHz
占空比: 49%
电源电压: 7 V ~ 20 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 16-DIP(0.300",7.62mm)
包装: 管件
其它名称: KA3525A-ND
KA3525AFS
www.fairchildsemi.com
KA3525A
SMPS Controller
Features
Description
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?
?
?
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5V ± 1% Reference
Oscillator Sync Terminal
Internal Soft Start
Deadtime Control
Under Voltage Lockout
The KA3525A is a monolithic integrated circuit that
includes all of the control circuits necessary for a pulse width
modulating regulator. There are a voltage reference, an error
amplifier, a pulse width modulator, an oscillator, an under
voltage lockout, a soft start circuit, and the output driver in
the chip.
16-DIP
1
Internal Block Diagram
VC
V REF 16
13
V CC 15
12
GND
BAND GAP
REF 5V
U.V.L.O.
EA(-)
1
_
ERR
11
OUTPUT A
AMP
EA(+)
2
+
EAOUT
9
_
PWM
LATCH
COMP
+
S
R
C
(SOFT
START)
8
14
OUTPUT B
10
5K
C T
5
OSCILLATOR
F/F
Q
Q
SHUT DOWN
5K
7
DISCHARGE
3
SYNC
6
R T
4
OSC
OUTPUT
Rev. 1.0.1
?2002 Fairchild Semiconductor Corporation
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