Datasheet > TS1451

TS1451

更新时间： 2024-11-12 22:42:03

品牌	Logo	应用领域
TSC		控制器
页数	文件大小	规格书
7页	139K
描述
Dual Channel PWM Controller

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TS1451 数据手册

TS1451

Dual Channel PWM Controller

DIP-16

SOP-16

Supply Voltage Range 3.6 V to 40V

Output Driving Current 20mA

Oscillator Frequency up to 500KHz

General Description

The TS1451 integrates dual channel PWM control circuit into a single chip, mainly designs for power supply regulator.

All the functions included an on-chip 2.5V reference output, two error amplifiers, and adjustable oscillator, two

dead-time comparators, under voltage lock out, short circuit protection, and dual common-emitter output transistor

circuit.

Recommend the output CE transistors as pre-driver for driving extremely. the dead time control can provide from 0% to

100%. Switching frequency can be adjustable by trimming RT and CT. During low Vcc situation, the under voltage lock

out makes sure that the output are off until the internal circuit is operational normally.

The TS1451 is offered in SOP-16 and DIP-16 package.

Features

Pin Assignments

Dual PWM Power Control Circuitry

Operating Voltage Can be up to 50V

Adjustable Dead Time Control (DTC)

Under Voltage Lock Out protection (UVLO)

Short Circuit Protection (SCP)

Variable Oscillator Frequency up to 500KHz

2.5V Voltage Reference Output

Applications

Pin Descriptions

Backlight Inverter

DC to DC Converters in Computers

Name

Descriptions

Timing Capacitor

Timing Resistor

EA+

EA-

Error Amplifier Input (+)

Error Amplifier Input (-)

Feedback Loop Compensation

Dead Time Control

Pre-Driver Output

Ordering Information

DTC

Out

Gnd

Vcc

SCP

Ref

Part No.

Operating Temp.

0 ~ +70 ^oC

Package

TS1451CD

DIP-16

Ground

TS1451CS

SOP-16

Supply Voltage

Short Circuit Protection

Voltage Reference

TS1451

1-7

2003/12 rev. A

12 3 4 5 6 7

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