Datasheet > S3843P

S3843P

更新时间： 2024-09-16 22:22:51

品牌	Logo	应用领域
韩国光电子 - AUK		控制器
页数	文件大小	规格书
7页	301K
描述
Current Mode PWM Controller

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中文翻译

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数据手册

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S3843P 数据手册

S3843P

Semiconductor

Current Mode PWM Controller

Descriptions

The S3843 is fixed Current PWM controller for Off-line and DC-DC converter applications.

The internal circuits feature a trimmed oscillator for precise duty cycle control, a

temperature compensated reference, high gain error amplifier current sensing comparator,

and a high current totempole output for driving a power MOSFET. Protection circuitly

includes built in under voltage lockout and current limiting. S3843 have UVLO threshold of

8.4V(on) and 7.6V(off). S3843 can operate within 100% duty cycle.

Features

• Optimized for off-line and DC to DC converters

• Low start up current < 1 mA

• Operating range up to 500 KHz

• Pulse-by-pulse current limiting

• Under Voltage Lock Out with hysteresis

• High current totempole output

• Short shutdown delay time ; typical 100nsec

Ordering Information

Type NO.

Marking

Package Code

S3843P

DIP-8

Outline Dimensions

unit : mm

PIN Connections

1. Output / Compensation

2. Voltage feedback. Input

3. Current sense Input

4. Rt/Ct

5. GND

6. Output

7. Vcc

8. Vref

KSI-L007-000

12 3 4 5 6 7

中文翻译

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