SI9912

更新时间： 2024-02-02 09:50:14

品牌	Logo	应用领域
威世 - VISHAY		驱动器模拟IC 开关信号电路
页数	文件大小	规格书
8页	95K
描述
Half-Bridge MOSFET Driver for Switching Power Supplies

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中文翻译

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技术参数
数据手册

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SI9912 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Is Samacsys：	N	Base Number Matches：	1

SI9912 数据手册

Si9912

Vishay Siliconix

Half-Bridge MOSFET Driver for Switching Power Supplies

FEATURES

APPLICATIONS

D 4.5- to 5.5-V Operation

D Multiphase Desktop CPU Supplies

D Undervoltage Lockout

D Single-Supply Synchronous Buck Converters

D Mobile Computing CPU Core Power Converters

D Standard-Synchronous Converters

D 250-kHz to 1-MHz Switching Frequency

D Shutdown Quiescent Current <5 mA

D One Input PWM Signal Generates Both Drive

D Bootstrapped High-Side Drive

D Operates from 4.5- to 30-V Supply

D TTL/CMOS Compatible Input Levels

D 1-A Peak Drive Current

D High Frequency Switching Converters

D Break-Before-Make Circuit

DESCRIPTION

The Si9912 is a dual MOSFET high-speed driver with

break-before-make. It is designed to operate in high frequency

dc-dc switchmode power supplies. The high-side driver is

bootstrapped to handle the high voltage slew rate associated

with “floating” high-side gate drivers. Each driver is capable of

switching a 3000-pF load with 60-ns propogation delay and

25-ns transition time. The Si9912 comes with an internal

break-before-make feature to prevent shoot-through current in

the external MOSFETs. A shutdown pin is used to enable the

driver. When disabled, the quiescent current of the driver is

less than 5 mA.

The Si9912 is available in both standard and lead (Pb)-free, 8-pin

SOIC packages for operation over the industrial operation range

(−40_C to 85_C).

FUNCTIONAL BLOCK DIAGRAM AND TRUTH TABLE

BOOT

TRUTH TABLE

BOOT

OUT

Level Shift

V_SSD IN V_OUTLV_OUTH

OUTPUT

Undervoltage

OUT

GND

−

BBM

Document Number: 71311

S-40134—Rev. B, 16-Feb-04

www.vishay.com

12 3 4 5 6 7 8

中文翻译

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与SI9912相关器件

型号	品牌	获取价格	描述	数据表
SI9912DY	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9912DY-E3	VISHAY	获取价格	MOSFET Driver, MOS, PDSO8
SI9912DY-T1	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9912DY-T1-E3	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9913	VISHAY	获取价格	Dual MOSFET Bootstrapped Driver with Break-Before-Make
SI9913_04	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9913DB	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9913DY	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies
SI9913DY-E3	VISHAY	获取价格	MOSFET Driver, PDSO8
SI9913DY-T1	VISHAY	获取价格	Half-Bridge MOSFET Driver for Switching Power Supplies