Datasheet > LTC3721-1

LTC3721-1

更新时间： 2024-11-11 04:43:39

品牌	Logo	应用领域
Linear Systems		控制器
页数	文件大小	规格书
16页	181K
描述
Push-Pull PWM Controller

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中文翻译

获取价格

数据手册

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LTC3721-1 数据手册

LTC3721-1

Push-Pull PWM Controller

DESCRIPTIO

FEATURES

The LTC^®3721-1 push-pull PWM controller provides all of

the control and protection functions necessary for com-

pact and highly efficient, isolated power converters. High

integration minimizes external component count, while

preserving design flexibility.

■

High Efficiency Push-Pull PWM

■

1.5A Sink, 1A Source Output Drivers

■

Adjustable Push-Pull Dead-Time

■

Adjustable System Undervoltage Lockout and

Hysteresis

■

Adjustable Leading Edge Blanking

The robust push-pull output stages switch at half the

oscillator frequency. Dead-time is independently pro-

grammedwithanexternalresistor. AUVLOprograminput

providesprecisesystemturn-onandturnoffvoltages.The

LTC3721-1 features peak current mode control with pro-

grammable slope compensation and leading edge

blanking.

■

Low Start-Up and Quiescent Currents

■

Current Mode Operation

■

Single Resistor Slope Compensation

■

V_CCUVLO and 25mA Shunt Regulator

■

Programmable Fixed Frequency Operation to 1MHz

■

Soft-Start, Cycle-by-Cycle Current Limiting and

Hiccup Mode Short-Circuit Protection

5V, 15mA Low Dropout Regulator

■

The LTC3721-1 features extremely low operating and

start-up currents and reliable short-circuit and

overtemperature protection. The LTC3721-1 is offered in

16-pin SSOP and (4mm × 4mm) QFN packages.

, LTC and LT are registered trademarks of Linear Technology Corporation.

16-Pin SSOP and (4mm × 4mm) QFN Packages

APPLICATIO S

■

Telecommunications, Infrastructure Power Systems

■

Distributed Power Architectures

■

Server Power Supplies

High Density Power Modules

■

TYPICAL APPLICATIO

Isolated Push-Pull Converter

OUT

UVLO

DRVA

FROM

AUXILIARY

WINDING

DRVB

DPRG

LTC3721-1

REF

LEB

OUT

COMP

TOP

COLL

REF

LT1431

GND-F GND-S

FB GND

COMP

MID

37211 TA01

sn37211 37211fs

12 3 4 5 6 7...16

中文翻译

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