參數(shù)資料
型號: FSCQ0765RTYDTU
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Green Mode Fairchild Power Switch (FPS) for Quasi-Resonant Switching Converter
中文描述: 15.2 A SWITCHING CONTROLLER, 22 kHz SWITCHING FREQ-MAX, PZFM5
封裝: TO-220F, 5 PIN
文件頁數(shù): 1/24頁
文件大?。?/td> 726K
代理商: FSCQ0765RTYDTU
2004 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev.1.0.1
Features
Optimized for Quasi-Resonant Converter (QRC)
Advanced Burst-Mode operation for under 1 W standby
power consumption
Pulse by Pulse Current Limit (5A)
Over load protection (OLP) - Auto restart
Over voltage protection (OVP) - Auto restart
Abnormal Over Current Protection (AOCP) - Latch
Internal Thermal Shutdown (TSD) - Latch
Under Voltage Lock Out (UVLO) with hysteresis
Low Startup Current (typical : 25uA)
Low Operating Current (typical : 4mA)
Internal High Voltage SenseFET
Built-in Soft Start (20ms)
Extended Quasi-resonant Switching for Wide Load Range
Application
CTV
DVD Receiver
Audio Power Supply
Description
In general, Quasi-Resonant Converter (QRC) shows lower
EMI and higher power conversion efficiency compared to the
conventional hard switched converter with a fixed switching
frequency. Therefore, it is well suited for applications that are
sensitive to the noise, such as color TV and audio. The
FSCQ0765RT is an integrated Pulse Width Modulation
(PWM) controller and Sense FET specifically designed for
Quasi-resonant off-line Switch Mode Power Supplies
(SMPS) with minimal external components. The PWM
controller includes integrated fixed frequency oscillator, under
voltage lockout, leading edge blanking (LEB), optimized gate
driver, internal soft start, temperature compensated precise
current sources for a loop compensation and self protection
circuitry. Compared with discrete MOSFET and PWM
controller solution, it can reduce total cost, component count,
size and weight simultaneously increasing efficiency, produc-
tivity, and system reliability. This device is a basic platform
well suited for cost effective designs of Quasi resonant
switching flyback converters.
Table 1. Notes: 1. Maximum practical continuous power
in an open frame design at 50
°
C ambient. 2. 230 VAC or
100/115 VAC with doubler.
Typical Circuit
Figure 1. Typical Flyback Application
OUTPUT POWER TABLE
230VAC
±
15%
(2)
Open Frame
(1)
PRODUCT
85-265VAC
Open Frame
(1)
FSCQ0765RT
100 W
85 W
FSCQ1265RT
170 W
140 W
FSCQ1565RT
210 W
170 W
Vcc
GND
Drain
Sync
Vo
PWM
V
FB
AC
IN
FSCQ0765RT
FS CQ0765RT
Green Mode Fairchild Power S w itch (FPS
T M
) for
Quasi-Resonant S w itching Converter
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相關代理商/技術參數(shù)
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