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FSDH565 Datasheet

  • FSDH565

  • Fairchild Power Switch(FPS)

  • 8頁

  • FAIRCHILD

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www.fairchildsemi.com
FSDH565
Fairchild Power Switch(FPS)
Features
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Single Chip 650V 0.5A SenseFET Power Switch
Precision Fixed Operating Frequency (100kHz)
Internal Start up Switch
UVLO with Hysteresis (6.7V/8.7V)
Over Load Protection
Over Current Protection (0.3A)
Internal Thermal Shutdown Function
Secondary Side Regulation
Auto-restart mode
No load consumption <250mW at 265VAC input
Description
The FSDH565 is specially designed for an off-line SMPS with
minimal external components. The FSDH565 is a monolithic
high voltage power switching regulator that combine the
SenseFET(LDMOS) with voltage mode PWM control block.
Included PWM controller features integrated fixed oscillator,
under voltage lock out, leading edge blanking, optimized gate
turn-on/turn-off driver, thermal shut down protection and
temperature compensated precision current sources for loop
compensation and fault protection circuitry. compared to
discrete MOSFET and controller or R
CC
switching converter
solution, a FSDH565 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 a flyback converter.
8-DIPH
Applications
鈥?Charger & Adaptor for Mobile Phone, PDA & MP3
鈥?Auxiliary Power for PC, C-TV, Monitor
1
1.Vstr 2.Vfb 3.4.5.6.GND 7.Vcc 8.Drain
Internal Block Diagram
#1 : Vstr
UVLO
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6.7V
#7 : Vcc
UVLO
VREG(5.8V)
4.5V
VREF
UVLO
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8.7V
INTERNAL
BIAS
#8 : Drain
SFET
OSC
S
Q
PWM
0.45 mA
+
R
L.E.B
5.8V
5 uA
#2 : Vfb
OLP
+
_
4.5V
OCP
S
Q
R
TSD
梅4
漏2001 Fairchild Semiconductor Corporation
+
+
+
_
_
Vth
_
#3,#4,#5,#6
GND
Rev.1.0.2

FSDH565 產(chǎn)品屬性

  • Fairchild Semiconductor

  • 36 Ohms

  • 3.5 mA

  • + 85 C

  • Through Hole

  • PDIP-8

  • - 25 C

  • 0.3 A

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