FSCQ1565RTYDTU_NL

更新时间： 2024-11-12 13:07:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		转换器开关
页数	文件大小	规格书
24页	1043K
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www.fairchildsemi.com

FSCQ1565RP

Green Mode Fairchild Power Switch (FPS ) for

Quasi-Resonant Switching Converter

Features

• Optimized for Quasi-Resonant Converter (QRC)

• Advanced Burst-Mode operation for under 1 W standby

power consumption

• Pulse by Pulse Current Limit (11.5A)

• 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 : 7mA)

• Internal High Voltage SenseFET

OUTPUT POWER TABLE

(2)

230VAC ±15%

85-265VAC

PRODUCT

(1)

Open Frame

100 W

Open Frame

85 W

FSCQ0765RT

FSCQ1265RT

FSCQ1565RT

FSCQ1565RP

170 W

140 W

210 W

170 W

250 W

210 W

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.

• Built-in Soft Start (20ms)

• Extended Quasi-resonant Switching for Wide Load Range

Application

Typical Circuit

• 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

FSCQ1565RP 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.

Drain

FSCQ1565RP

PWM

Sync

GND

V_FB

Vcc

Figure 1. Typical Flyback Application

Rev.1.0.0

12 3 4 5 6 7...24

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