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PDF ( 数据手册 , 数据表 ) 1H0280R

零件编号 1H0280R
描述 KA1H0280R
制造商 Fairchild
LOGO Fairchild LOGO 


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1H0280R 数据手册, 描述, 功能
www.DataSheet4U.com
www.fairchildsemi.com
KA1M0280RB/KA1H0280RB
Fairchild Power Switch(FPS)
Features
• Precision Fixed Operating Frequency
• KA1M0280RB (67kHz) , KA1H0280RB (100kHz)
• Pulse by Pulse Over Current Limiting
• Over Load Protection
• Over Voltage Protection (Min. 23V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto Restart
Description
The Fairchild Power Switch(FPS) product family is specially
designed for an off line SMPS with minimal external
components. The Fairchild Power Switch(FPS) consist of high
voltage power SenseFET and current mode PWM controller IC.
PWM controller features integrated fixed oscillator, under
voltage lock out, leading edge blanking, optimized gate turn-on/
turn-off driver, thermal shut down protection, over voltage
protection, temperature compensated precision current sources
for loop compensation and fault protection circuit. compared to
discrete MOSFET and controller or RCC switching converter
solution, a Fairchild Power Switch(FPS) can reduce total
component count, design size, weight and at the same time
increase & efficiency, productivity, and system reliability. It has
a basic platform well suited for cost effective design in either a
flyback converter or a forward converter.
TO-220F-4L
Internal Block Diagram
1
1. GND 2. DRAIN 3. VCC 4. FB
#3 VCC
#4 FB
32V 5V Internal
Vref bias
Good
logic
5µA
7.5V
25V
9V
1mA
2.5R
1R
+
OSC
+
S
Q
R
L.E.B
0.1V
+ Thermal S/D
OVER VOLTAGE S/D
S
Q
R
Power on reset
SFET
©2003 Fairchild Semiconductor Corporation
#2 DRAIN
#1 GND
Rev.1.0.2







1H0280R pdf, 数据表
www.DataSheet4U.com
KA1M0280RB/KA1H0280RB
Package Dimensions
TO-220F-4L
8














页数 10 页
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