SG2526B

更新时间： 2024-09-25 22:43:15

品牌	Logo	应用领域
美高森美 - MICROSEMI		脉冲
页数	文件大小	规格书
9页	212K
描述
REGULATING PULSE WIDTH MODULATOR

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中文翻译

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数据手册

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SG2526B 数据手册

SG1526B/SG2526B/SG3526B

REGULATING PULSE WIDTH MODULATOR

DESCRIPTION

FEATURES

• 8 to 35 volt operation

The SG1526B is a high-performance pulse width modulator for switching

power supplies which offers improved functional and electrical characteris-

tics over the industry-standard SG1526. A direct pin-for-pin replacement for

the earlier device with all its features, it incorporates the following enhance-

ments: a bandgap reference circuit for improved regulation and drift

characteristics, improved undervoltage lockout, lower temperature coeffi-

cients on oscillator frequency and current-sense threshold, tighter toler-

ance on softstart time, much faster SHUTDOWN response, improved

double-pulse supperession logic for higher speed operation, and an im-

proved 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 transformer-less

and transformer-coupled. The SG1526B is specified for operation over the

full military ambient temperature range of -55°C to 150°C. The SG2526B

ischaracterizedfortheindustrialrangeof-25°Cto150°C, andtheSG3526B

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 thru currents less than 100mA

• Improved shutdown delay

• Improved rise and fall time

HIGH RELIABILITY FEATURES - SG1526B

♦ Available to MIL-STD-883

♦ MIL-M38510/12603BVA - JAN1526BJ

♦ Radiation data available

♦ LMI 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

4/90 Rev 1.1 2/94

LINFINITY Microelectronics Inc.

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 ∞ FAX: (714) 893-2570

12 3 4 5 6 7...9

中文翻译

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与SG2526B相关器件

型号	品牌	获取价格	描述	数据表
SG2526BDW	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2526BDW-129008	MICROSEMI	获取价格	Switching Controller, 0.2A, PDSO18
SG2526BDWT/R	MICROSEMI	获取价格	Switching Controller, Voltage-mode, 0.2A, 500kHz Switching Freq-Max, PDSO18, ROHS COMPLIAN
SG2526BJ	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2526BN	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2526DW	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2526J	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2526N	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2527A	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG2527ADW	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR

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