Datasheet > CS52843

CS52843

更新时间： 2024-11-15 23:16:27

品牌	Logo	应用领域
樱桃 - CHERRY		/
页数	文件大小	规格书
6页	149K
描述
Current Mode PWM Control Circuit

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CS52843 数据手册

CS52843

Current Mode PWM

Control Circuit

Description

Features

Optimized for Off-line

ꢀ

The CS52843 provides all the nec-

before the output stage is enabled.

In the CS52843 turn on is at 8.4V

and turn off at 7.6V.

Control

essary features to implement off-

line fixed frequency current-mode

control with a minimum number

of external components.

Temperature

ꢀ Internally

Compensated Oscillator

Other features include low start-up

current, pulse-by-pulse current lim-

iting, and a high-current totem pole

output for driving capacitive loads,

such as gate of a power MOSFET.

The output is low in the off state,

consistent with N-channel devices.

ꢀ V

Stabilized before

REF

Output Stage is Enabled

The CS52843 incorporates a new

precision temperature-controlled

oscillator to minimize variations in

frequency. An undervoltage lock-

out ensures that V_REFis stabilized

ꢀ Very Low Start-up Current

300 µA (typ)

ꢀ Pulse-by-pulse Current

Limiting

ꢀ Improved Undervoltage

Absolute Maximum Ratings

Lockout

Supply Voltage (I_CC<30mA)..........................................................Self Limiting

ꢀ Double Pulse Suppression

ꢀ 2% 5 Volt Reference

Supply Voltage (Low Impedance Source)...................................................30V

Output Current...............................................................................................±1A

Output Energy (Capacitive Load) .................................................................5µJ

Analog Inputs (V_FB, V_SENSE)...........................................................-0.3V to 5.5V

ꢀ High Current Totem Pole

Output

Error Amp Output Sink Current...............................................................10mA

Lead Temperature Soldering

Reflow (SMD styles only)...........60 sec. max above 183°C, 230°C peak

Block Diagram

Package Options

8L SO Narrow

V_CCUndervoltage Lock-out

V_CC

V_CCPwr

V_REF

COMP

V_FB

V_CC

34V

Set/

5.0 Volt

V_REF

Reset Reference

V_OUT

Gnd

Sense

OSC

Gnd

V_FB

8.4V/7.6V

Internal

Bias

Error

14L SO Narrow

Amplifier

OUTPUT

ENABLE

COMP

V_REF

2.50V

V_OUT

NOR

OSC

V_FB

V_CC

Oscillator

11 V_CCPwr

2 R

Pwr Gnd

Sense

V_OUT

Pwr Gnd

PWM

Latch

Current

Sensing

Comparator

Gnd

Sense

OSC

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. 12/23/97

Company

12 3 4 5 6

中文翻译

下载PDF

与CS52843相关器件

型号	品牌	获取价格	描述	数据表
CS-52843	ETC	获取价格	Current Mode PWM Control Circuit
CS52843/D	ETC	获取价格	Current Mode PWM Control Circuit
CS-52843D14	ETC	获取价格	Current-Mode SMPS Controller
CS-52843D8	ETC	获取价格	Current-Mode SMPS Controller
CS-52843DR14	CHERRY	获取价格	Switching Controller, Current-mode, 1A, PDSO14,
CS52843ED14	ONSEMI	获取价格	Current Mode PWM Control Circuit
CS52843ED14	CHERRY	获取价格	Current Mode PWM Control Circuit
CS52843ED8	CHERRY	获取价格	Current Mode PWM Control Circuit
CS52843ED8	ONSEMI	获取价格	Current Mode PWM Control Circuit
CS52843EDR14	ONSEMI	获取价格	Current Mode PWM Control Circuit

与CS52843相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

13
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

7
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

35
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

31

产品中心

服务支持

精选活动

关于我们

帮助中心

CS52843

CS52843 数据手册

与CS52843相关器件

与CS52843相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CS52843

CS52843 数据手册

与CS52843相关器件

与CS52843相关文章

您还可以找

您在本页遇到什么问题？