Datasheet > CS51021

CS51021

更新时间： 2024-09-09 22:28:47

品牌	Logo	应用领域
樱桃 - CHERRY		控制器
页数	文件大小	规格书
9页	171K
描述
Enhanced Current Mode PWM Controller

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中文翻译

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数据手册

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CS51021 数据手册

CS51021/CS51023

CS51022/CS51024

Enhanced Current Mode

PWM Controller

Description

Features

The CS51021/22/23/24 Fixed

Frequency PWM Current Mode

Controller family provides all neces- ing, current slope compensation,

sary features required for AC-DC or accurate duty cycle control and an

DC-DC primary side control.

Several features are included elimi-

nating the additional components

needed to implement them external- bility, while the CS51022 and

ly. In addition to low start-up cur-

rent (75µA) and high frequency

operation capability, the CS51021/

22/23/24 family includes overvolt-

age and undervoltage monitoring,

externally programmable dual

threshold overcurrent protection,

current sense leading edge blank-

ꢀ 75µA Max. Startup Current

ꢀ Fixed Frequency Current

Mode Control

externally available 5V reference.

The CS51021 and CS51023 feature

bidirectional synchronization capa-

ꢀ 1MHz Switching Frequency

ꢀ Undervoltage Protection

Monitor

ꢀ Overvoltage Protection

CS51024 offer a sleep mode with

100µA maximum IC current con-

sumption. The CS51021/22/23/24

family is available in a 16 lead nar-

row body SO package.

Monitor with

Programmable Hysteresis

ꢀ Programmable Dual

Threshold Overcurrent

Protection with Delayed

Restart

ꢀ Programmable Soft Start

Device

Sleep/Synch

V_CCStart/Stop

8.25V/7.7V

13V/7.7V

ꢀ Accurate Maximum Duty

Cycle Limit

CS51021

CS51022

CS51023

CS51024

Synch

Sleep

Synch

Sleep

ꢀ Programmable Slope

Compensation

ꢀ Leading Edge Current

13V/7.7V

Sense Blanking

ꢀ 1A Sink/Source Gate Drive

ꢀ Bidirectional Synchronization

(CS51021/23)

Typical Application Diagram

100

(36V to 72V)

ꢀ 50ns PWM Propagation

PGND

BAS21

1µF

51k

Delay

18V

SYNC/SLEEP

22µF

ꢀ 100µA Max Sleep Current

11V

100:1

10K

0.1µF

FZT688

2:5

MBRB2060CT

200K,1%

4:1

(CS51022/24)

24.3K

OUT

(5V/5A)

V_C

V_REF

V_CC

0.01µF

4700pF

51K

2.49K,1%

BA521

22K

10K

100µF

680pF

COMP

Package Options

SGND

100pF

V_FB

I_SET

R_TC_T

16 Lead SO Narrow

SLOPE

GATE

IRF6345

SYNC/

SLEEP

I_SENSE

C_SS

6.98k,

100

100p

330pF

PGnd

GATE

SENSE

LGnd U1

0.01µF

470pF

PGnd

SLEEP

or SYNC

SLOPE

0.1µF

5.1K

REF

TL431

2K, 1%

1000pF

LGnd

180

2K,1%

10K

R C

COMP

MOC81025

SET

Consult factory for other package options.

36-72V to 5V, 5A DC-DC Convertor

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. 2/22/99

Company

12 3 4 5 6 7...9

中文翻译

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与CS51021相关器件

型号	品牌	获取价格	描述	数据表
CS-51021	ETC	获取价格	Enhanced Current Mode PWM Controller
CS51021/CS51023/CS51022/CS51024	ETC	获取价格	Enhanced Current Mode PWM Controller
CS51021/D	ETC	获取价格	Enhanced Current Mode PWM Controller
CS51021A	ONSEMI	获取价格	Enhanced Current Mode PWM Controller
CS51021A/D	ETC	获取价格	Enhanced Current Mode PWM Controller
CS51021AA	ONSEMI	获取价格	AC-DC Offline Switching Controllers/Regulators
CS51021AED16	ONSEMI	获取价格	Enhanced Current Mode PWM Controller
CS51021AEDR16	ONSEMI	获取价格	Enhanced Current Mode PWM Controller
CS51021AEDR16G	ONSEMI	获取价格	Enhanced Current Mode PWM Controller
CS-51021D16	ETC	获取价格	Current-Mode SMPS Controller

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