Datasheet > S3842

S3842

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
8页	352K
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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S3842 数据手册

S3842

Semiconductor

Current Mode PWM Controller

Descriptions

The S3842, high performance current mode controller, Provides the necessary features to

off-line and DC-DC fixed frequency current control applications offering the designer a cost

effective solution with minimal external components. Internally protection circuity includes

built-in input and reference under-voltage lockout and current limiting with hysteresis.

Also other characteristics of internal circuit provide improved line regulation, enhanced load

response, trimmed oscillation for precise duty cycle control, a temperature compensated

reference, high gain error amplifier, current sensing comparator and totempole output

designed to source and sink high peak current from a capacitive load such as the gate of a

power MOSFET.

Features

• Optimized for off-line control

• Low start up and operating current

• Pulse by pulse current limiting

• Current mode operation to 500 ㎑

• Under voltage lockout with 6V hysteresis

• Internally trimmed bandgap reference about 5V

• Enhanced load response characteristic • Automatic feed forward compensation

Ordering Information

Type NO.

Marking

Package Code

S3842

SOP-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-8006-003

12 3 4 5 6 7 8

中文翻译

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