CQ1265RT Datasheet PDF – Green Mode Fairchild Power Switch

Part Number: CQ1265RT

Function: Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Switching Converter

Package:  TO-220F-5L Pin Type

Manufacturer: Fairchild

Images:

CQ1265RT datasheet

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 CQ1265RT 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.

Pinout:

CQ1265RT pinout

Features

1. Optimized for Quasi-Resonant Converter (QRC)
2. Advanced Burst-Mode operation for under 1 W standby power consumption
3. Pulse by Pulse Current Limit (7A)
4. Over load protection (OLP) – Auto restart
5. Over voltage protection (OVP) – Auto restart
6. Abnormal Over Current Protection (AOCP) – Latch

Applications

1. CTV
2. DVD Receiver
3. Audio Power Supply

Other data sheets are available within the file: FSCQ1265RT, FSCQ0765RT, FSCQ1565RT

CQ1265RT Datasheet PDF


 

CQ1265RT pdf

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G5258 Datasheet – Dual Power Distribution Switch – GMT

Part Number: G5258

Function: Dual Power Distribution Switch

Package: SOP 8, TDFN3X3-8 Pin Type

Manufacturer: Global Mixed-mode Technology Inc. ( http://www.gmt.com.tw )

Pinout :
G5258 datasheet pinout

Description

The G5258 is an integrated dual channel 87mΩ power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. Several Protection features include current limiting with foldback, and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. And a built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off.

Typical Application Circuit :

G5258 circuit

G5258 Datasheet PDF Download


 

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