Datasheet > SG1526B_1

SG1526B_1

更新时间： 2024-02-23 18:00:00

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	305K
描述
REGULATING PULSE WIDTH MODULATOR

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中文翻译

获取价格

数据手册

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SG1526B_1 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

Rev 1.1a 3.19.2005

Microsemi 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SG1526B_1相关器件

型号	品牌	获取价格	描述	数据表
SG1526BJ	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG1526BJ/883B	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG1526BJ/DESC	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG1526BJ-883B	MICROSEMI	获取价格	Switching Controller, Voltage-mode, 0.2A, 500kHz Switching Freq-Max, BIPolar, CDIP18, HERM
SG1526BJ-DESC	MICROSEMI	获取价格	Switching Controller, Voltage-mode, 0.2A, 500kHz Switching Freq-Max, CMOS, CDIP18, HERMETI
SG1526BJ-JAN	MICROSEMI	获取价格	Switching Controller
SG1526BL	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG1526BL/883B	MICROSEMI	获取价格	REGULATING PULSE WIDTH MODULATOR
SG1526BL-883B	MICROSEMI	获取价格	Switching Controller, Voltage-mode, 0.2A, 500kHz Switching Freq-Max, BIPolar, CQCC20, HERM
SG1526F/883B	MICROSEMI	获取价格	Switching Controller, Voltage-mode, 0.2A, 350kHz Switching Freq-Max, CDFP24

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