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FSDM311L Datasheet

  • FSDM311L

  • Green Mode Fairchild Power Switch (FPS)

  • 16頁

  • FAIRCHILD

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www.fairchildsemi.com
FSDM311
Features
Green Mode Fairchild Power Switch (FPS
TM
)
鈥?Internal Avalanche Rugged Sense FET
鈥?Precision Fixed Operating Frequency (67kHz)
鈥?Advanced Burst-Mode operation Consumes under 0.2W
at 265Vac and no load
鈥?Internal Start-up Switch and Soft Start
鈥?Under Voltage Lock Out (UVLO) with Hysteresis
鈥?Pulse by Pulse Current Limit
鈥?Over Load Protection (OLP)
鈥?Over Voltage Protection (OVP)
鈥?Internal Thermal Shutdown Function (TSD)
鈥?Secondary Side Regulation
鈥?Auto-Restart Mode
TYPICAL POWER CAPABILITY
PRODUCT
FSDM311
FSDM311L
Open Frame
230VAC
鹵15%
(1)
20W
20W
85-265VAC
12W
12W
Table 1. Notes: 1. 230 VAC or 100/115 VAC with doubler.
Typical Circuit
Applications
鈥?Charger & Adaptor for Mobile Phone, PDA & MP3
鈥?Auxiliary Power for White Goods, PC, C-TV & Monitor
AC
IN
DC
OUT
Vstr
Drain
Description
The FSDM311 is an integrated Pulse Width Modulator
(PWM) and Sense FET specially designed for high perfor-
mance off-line Switch Mode Power Supplies (SMPS) with
minimal external components. This device is a monolithic
high voltage power switching regulator which combines an
VDMOS Sense FET with a voltage mode PWM control
block. The integrated PWM controller features include: a
fixed oscillator, Under Voltage Lock Out (UVLO) protec-
tion, Leading Edge Blanking (LEB), optimized gate turn-on/
turn-off driver, thermal shut down protection (TSD), temper-
ature compensated precision current sources for loop com-
pensation and fault protection circuitry. When compared to a
discrete MOSFET and controller or RCC switching con-
verter solution, the FSDM311 reduces total component
count, design size, weight and at the same time increases
efficiency, productivity, and system reliability. This device is
a basic platform well suited for cost effective designs of fly-
back converters.
Vfb
PWM
Vcc
Source
Figure 1. Typical Flyback Application using FSDM311
Rev.1.0.5
漏2004 Fairchild Semiconductor Corporation

FSDM311L 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān)

  • -

  • 隔離

  • 61 ~ 73kHz

  • 7 V ~ 20 V

  • 650V

  • 13W

  • 25°C ~ 150°C

  • 8-SOP，8-LSOP

  • 8-LSOP

  • -

  • FSDM311L_NLFSDM311L_NL-ND

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