Datasheet > S3843

S3843

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	296K
描述
Current Mode PWM Controller

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

S3843 数据手册

S3843

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

S3843

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-8007-001

12 3 4 5 6 7 8

中文翻译

下载PDF

与S3843相关器件

型号	品牌	获取价格	描述	数据表
S3843P	AUK	获取价格	Current Mode PWM Controller
S-386.6OHM0.01%	VISHAY	获取价格	Fixed Resistor, Wire Wound, 3W, 86.6ohm, 150V, 0.01% +/-Tol, -20,20ppm/Cel, Surface Mount,
S-3866OHM0.01%	VISHAY	获取价格	Fixed Resistor, Wire Wound, 3W, 866ohm, 150V, 0.01% +/-Tol, -20,20ppm/Cel, Surface Mount,
S388	ETC	获取价格	SCREWDRIVER SQUARE 3/8" 12.5"
S-388.7OHM0.01%	VISHAY	获取价格	Fixed Resistor, Wire Wound, 3W, 88.7ohm, 150V, 0.01% +/-Tol, -20,20ppm/Cel, Surface Mount,
S3880	MICROSEMI	获取价格	Rectifier Diode, 1 Phase, 1 Element, 100A, 800V V(RRM), Silicon, DO-203AB, METAL, DO-5, 1
S3880E3	MICROSEMI	获取价格	Rectifier Diode, 1 Phase, 1 Element, 100A, 800V V(RRM), Silicon, DO-203AB, METAL, DO-5, 1
S3881-32.768K	PLETRONICS	获取价格	CMOS Output Clock Oscillator, 32.768MHz Nom, ROHS COMPLIANT, CERAMIC, LCC-4
S3881-32.768K-T1K	PLETRONICS	获取价格	CMOS Output Clock Oscillator, 0.032768MHz Nom, ROHS COMPLIANT, CERAMIC, LCC-4
S3881-32.768K-T250	PLETRONICS	获取价格	CMOS Output Clock Oscillator, 0.032768MHz Nom, ROHS COMPLIANT, CERAMIC, LCC-4