CS2841 ON Semiconductor, CS2841 Datasheet

CS2841

Manufacturer Part Number

CS2841

Description

Automotive Current Mode Pwm Control Circuit

Manufacturer

ON Semiconductor

Datasheet

1.CS2841.pdf (10 pages)

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CS2841B

Automotive Current Mode

PWM Control Circuit

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

number of external components.

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.

oscillator with an internally trimmed discharge current to minimize

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

possible. On board logic ensures that V

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

undervoltage lockout.

Features

•

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

September, 2005 − Rev. 7

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

The CS2841B provides all the necessary features to implement

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

The CS2841B incorporates a precision temperature−controlled

Optimized for Off−Line Control

Internally Trimmed Temperature Compensated Oscillator

Maximum Duty−Cycle Clamp

Low Start−Up Current

Pulse−By−Pulse Current Limiting

Improved Undervoltage Lockout

Double Pulse Suppression

1.0 % Trimmed Bandgap Reference

High Current Totem Pole Output

Pb−Free Packages are Available*

REF

Stabilized Before Output Stage Enabled

REF

is stabilized before the

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

CS2841B = Device Code

YY, Y

COMP

Sense

ORDERING INFORMATION

COMP

Sense

OSC

PIN CONNECTIONS AND

OSC

MARKING DIAGRAM

http://onsemi.com

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

SOIC−14

PDIP−8

Publication Order Number:

CASE 751A

CASE 626

N SUFFIX

D SUFFIX

SOIC−14

PDIP−8

PWR GND

GND

REF

OUT

GND

REF

OUT

PWR

CS2841B/D

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