Datasheet > CS5661

CS5661

更新时间： 2024-09-16 22:40:19

品牌	Logo	应用领域
樱桃 - CHERRY		控制器
页数	文件大小	规格书
8页	169K
描述
High Performance Dual Channel Current Mode Controller with ENABLE

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CS5661 数据手册

CS5661

High Performance Dual Channel

Current Mode Controller with ENABLE

Description

Features

The CS5661 is a high performance,

current totem pole outputs ideally

suited for driving power MOSFETs.

V_OUT2output is switchable via the

ENABLE₂pin.

ꢀ Oscillator has Precise

Duty Cycle

fixed frequency, dual current mode

controller specifically designed for

Off-Line and DC to DC converter

applications. It offers the designer a

cost effective solution with minimal

external components. This integrat-

ed circuit features a unique oscilla-

tor for precise duty cycle limit and

frequency control, a temperature

compensated reference, two high

gain error amplifiers, two current

sensing comparators, and two high

Limit and Frequency

Control

ꢀ 500kHz Current Mode

Also included are protective fea-

tures consisting of input and refer-

ence undervoltage lockouts, each

with hysteresis, cycle-by-cycle cur-

rent limiting, and a latch for single

pulse metering of each output.

Operation

ꢀ Automatic Feed Forward

Compensation

ꢀ Separate Latching PWMs

for Cycle-By-Cycle

Current Limiting

The CS5661 is pin compatible with

the MC34065L.

ꢀ Internally Trimmed

Reference with

Undervoltage Lockout

Block Diagram

ꢀ Switchable Second

V_CC

Output

ꢀ Two High Current Totem

Pole Outputs

V_CC

Undervoltage

Lockout

5.0V Ref

REF

ꢀ Input Undervoltage

Lockout with Hysteresis

V_REF

Undervoltage

Lockout

ꢀ 8.4V Start Up Voltage

Threshold

OUT

SYNC

Latching

PWM 1

Oscillator

Package Options

Sense

Error

Amp 1

16 Lead SO Wide

COMP

OUT

SYNC

Latching

PWM 2

ENABLE

REF

ENABLE

Sense

Error

Amp 2

12 COMP2

COMP

SENSE

COMP

SENSE

OUT

Gnd

Pwr Gnd

Gnd

Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885-3600 Fax: (401)885-5786

Email: info@cherry-semi.com

Web Site: www.cherry-semi.com

Rev. 2/2/99

Company

12 3 4 5 6 7 8

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