SG3524 데이터 시트보기 (PDF) - STMicroelectronics

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SG3524

REGULATING PULSE WIDTH MODULATORS

STMicroelectronics 

SG2524

®

SG3524

REGULATING PULSE WIDTH MODULATORS

COMPLETE PWM POWER CONTROL CIR-

CUITRY

UNCOMMITTED OUTPUTS FOR SINGLE-

ENDED OR PUSH PULL APPLICATIONS

LOW STANDBY CURRENT 8mA TYPICAL

OPERATION UP TO 300KHz

1% MAXIMUM TEMPERATURE VARIATION

OF REFERENCE VOLTAGE

DESCRIPTION

The SG2524, and SG3524 incorporate on a sin-

gle monolithic chip all the function required for the

construction of regulating power suppies inverters

or switching regulators. They can also be used as

the control element for high power-output applica-

tions. The SG3524 family was designed for

switching regulators of either polarity, trans-

former-coupled dc-to-dc converters, transformer-

less voltage doublers and polarity converter appli-

cations employing fixed-frequency, pulse-width

modulation techniques. The dual alternating out-

puts allows either single-ended or push-pull appli-

BLOCK DIAGRAM

DIP16

SO16

ORDERING NUMBERS: SG2524N (DIP16)

SG3524N (DIP16)

SG2524P (SO16)

SG3524P (SO16)

cations. Each device includes an on-ship refer-

ence, error amplifier, programmable oscillator,

pulse-steering flip flop, two uncommitted output

transistors, a high-gain comparator, and current-

limiting and shut-down circuitry.

June 2000

1/9

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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