Datasheet > SG3526B

SG3526B

更新时间： 2024-11-12 14:51:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
12页	513K
描述
The SG1526B is a high-performance pulse width modulator for switching power supplies which offers

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SG3526B 数据手册

SG1526B/SG2526B/SG3526B

REGULATING PULSE WIDTH MODULATOR

FEATURES

DESCRIPTION

8V to 35V Operation

The SG1526B is a high-performance pulse width modulator

for switching power supplies which offers improved

functional and electrical characteristics over the industry-

standard SG1526. A direct pin-for-pin replacement for the

earlier device with all its features, it incorporates the

following enhancements: a bandgap reference circuit for

improved regulation and drift characteristics, improved

undervoltage lockout, lower temperature coefficients on

oscillator frequency and current-sense threshold, tighter

tolerance on softstart time, much faster SHUTDOWN

response, improved double-pulse supperession logic for

higher speed operation, and an improved output driver

design with low shoot-through current, and faster rise and

fall times. This versatile device can be used to implement

single-ended or push-pull switching regulators of either

polarity, both transformerless and transformer-coupled. The

SG1526B is specified for operation over the full military

ambient temperature range of -55°C to 150°C. The

SG2526B is characterized for the industrial range of -25°C

to 150°C, and the SG3526B is designed for the commercial

range of 0°C to 125°C.

5V Low drift 1% Bandgap Reference

1Hz to 500kHz Oscillator Range

Dual 100mA Source/Sink

Digital Current Limiting

. Double Pulse Suppression

Programmable Deadtime

Improved Undervoltage Lockout

Single Pulse Metering

. Programmable Soft-start

Wide current Limit Common Mode Range

TTL/CMOS Compatible Logic Ports

Symmetry Correction Capability

Guaranteed 6 Unit Synchronization

. Shoot-through Currents Less than 100mA

. Improved Shutdown Delay

Improved Rise and Fall Time

HIGH RELIABILITY FEATURES

Available To MIL-STD-883, ¶ 1.2.1

. Available to DSCC - Standard Microcircuit

Drawing (SMD)

MIL-M38510/12603BVA - SG1526BJ-JAN

. Radiation data available

MSC-AMS Level "S" Processing Available

BLOCK DIAGRAM

V_REF

+V_C

Reference

Regulator

Undervoltage

Lockout

+V_IN

GROUND

To Internal

Circuitry

R_D

R_T

SYNC

Oscillator

OUTPUT A

C_T

RESET

Soft

Start

C_SOFTSTART

COMPENSATION

+V_IN

Amp

MEMORY

F/F

TOGGLE

F/F

+ ERROR

— ERROR

OUTPUT B

METERING

F/F

+ C.S.

— C.S.

SHUTDOWN

December 2014 Rev1.2

www.microsemi.com

12 3 4 5 6 7...12

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与SG3526B相关器件

型号	品牌	获取价格	描述	数据表
SG3526BDW	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG3526BJ	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG3526BN	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG3526D	NXP	获取价格	IC 0.25 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SOL-20, Switc
SG3526D	PHILIPS	获取价格	Switching Regulator/Controller, Voltage-mode, 0.2A, 400kHz Switching Freq-Max, BIPolar, PD
SG3526D-T	NXP	获取价格	IC 0.25 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SOL-20, Switc
SG3526DW	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG3526F	PHILIPS	获取价格	Switching Regulator/Controller, Voltage-mode, 0.2A, 400kHz Switching Freq-Max, BIPolar, CD
SG3526F	NXP	获取价格	IC 0.25 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP18, HERMETIC SEALED, CERDI
SG3526J	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR

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