Datasheet > CS2841B

CS2841B

更新时间： 2024-11-17 04:12:35

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
10页	101K
描述
Automotive Current Mode PWM Control Circuit

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CS2841B 数据手册

CS2841B

Automotive Current Mode

PWM Control Circuit

The CS2841B provides all the necessary features to implement

off−line fixed frequency current−mode control with a minimum

number of external components.

http://onsemi.com

The CS2841B (a variation of the CS2843A) is designed specifically

for use in automotive operation. The low start threshold voltage of 8.0 V

(typ), and the ability to survive 40 V automotive load dump transients

are important for automotive subsystem designs. The CS2841 series

has a history of quality and reliability in automotive applications.

The CS2841B incorporates a precision temperature−controlled

oscillator with an internally trimmed discharge current to minimize

variations in frequency. Duty−cycles greater than 50% are also

PDIP−8

N SUFFIX

CASE 626

possible. On board logic ensures that V

is stabilized before the

REF

output stage is enabled. Ion implant resistors provide tighter control of

undervoltage lockout.

SOIC−14

D SUFFIX

CASE 751A

Features

• Optimized for Off−Line Control

• Internally Trimmed Temperature Compensated Oscillator

• Maximum Duty−Cycle Clamp

PIN CONNECTIONS AND

MARKING DIAGRAM

• V

Stabilized Before Output Stage Enabled

REF

• Low Start−Up Current

• Pulse−By−Pulse Current Limiting

• Improved Undervoltage Lockout

• Double Pulse Suppression

COMP

REF

Sense

OSC

OUT

• 1.0 % Trimmed Bandgap Reference

• High Current Totem Pole Output

• Pb−Free Packages are Available*

GND

PDIP−8

COMP

REF

PWR

Sense

OUT

PWR GND

GND

OSC

SOIC−14

CS2841B = Device Code

= Assembly Location

YY, Y

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

ORDERING INFORMATION

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

Semiconductor Components Industries, LLC, 2005

Publication Order Number:

September, 2005 − Rev. 7

CS2841B/D

12 3 4 5 6 7...10

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