CQO765RT Datasheet, CQ0765RT PDF – Power Switch

Part Number: CQO765RT

CQO765RT  =>  Correct Part number CQ0765RT

Package: TO-220 Type

Function: Green Mode Fairchild Power Switch

Manufacturer: Fairchild

Image:

CQO765RT Image

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
4. Under-Voltage Lockout (UVLO) with Hysteresis
5. Extended Quasi-Resonant Switching

Pinouts:

CQO765RT Pinouts

Description

A Quasi-Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to a conventional hard-switched converter with a fixed switching frequency.

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, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of Quasi resonant switching flyback converters.

Block Diagram
CQO765RT Datasheet

Applications

1. CTV
2. Audio Amplifier

Other data sheets are available within the file: CQ0565RT, CQ05659T, CQ1265RT, CQ1565RT,

CQO565RT, CQO5659T.

CQO765RT Datasheet

 


CQO765RT pdf

BD4911FM PDF – Multifunction System Power Supply IC

Part Number: BD4911FM

Function: Multifunction System Power Supply IC

Package: 28-pin HSOP-M28 Type

Manufacturer: Rohm

Image and pinouts :

BD4911FM datasheet pinout

Description

The BD4911FM multiple-output system power supply features microcontroller output and is capable of operating at super-low dark current levels. With a built-in reset, with a microcontroller delay, BATTERY/ACCESSORY voltage detection, and mute function, WDT (Watch Dog Timer) function, the BD4911FM is ideal for car audio and satellite navigation systems. […]

Features

1. Circuit current during standby operation (WDT off): 100 µA (TYP)

2. Built-in reduced power detection circuits for Vo1 and Vo2 output

3. Built-in elevated output detection circuit for Vo1

4. The IC monitors the BuM voltage and outputs it to the BuDET1 and BuDET2 pins.

5. The IC monitors the ACCM voltage and outputs it to the ACCM pin when BuDET1 and BuDET2 are low.

6. Built-in mute circuit. Pulse width can be set with the CE capacitor.

Applications:

1. Car audio and satellite navigation systems

BD4911FM Datasheet