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ADP3118

更新时间： 2024-11-06 11:47:15

品牌	Logo	应用领域
安森美 - ONSEMI		驱动器
页数	文件大小	规格书
14页	221K
描述
Dual Bootstrapped 12 V MOSFET Driver with Output Disable

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ADP3118 数据手册

Dual Bootstrapped 12 V

MOSFET Driver with Output Disable

ADP3118

FEATURES

GENERAL DESCRIPTION

Optimized for low gate charge MOSFETs

All-in-one synchronous buck driver

Bootstrapped high-side drive

One PWM signal generates both drives

Anticross-conduction protection circuitry

Output disable control turns off both MOSFETs to float

output per Intel VRM 10

The ADP3118 is a dual, high voltage MOSFET driver optimized

for driving two N-channel MOSFETs, which are the two switches

in a nonisolated synchronous buck power converter. Each of the

drivers is capable of driving a 3000 pF load with a 25 ns prop-

agation delay and a 25 ns transition time. One of the drivers can

be bootstrapped and is designed to handle the high voltage slew

rate associated with floating high-side gate drivers. The ADP3118

includes overlapping drive protection to prevent shoot-through

current in the external MOSFETs.

Meets CPU VR requirement when used with

Analog Devices, Inc. Flex-Mode¹controller

The OD pin shuts off both the high-side and the low-side

MOSFETs to prevent rapid output capacitor discharge during

system shutdown.

APPLICATIONS

Multiphase desktop CPU supplies

Single-supply synchronous buck converters

The ADP3118 is specified over the commercial temperature

range of 0°C to 85°C and is available in 8-lead SOIC and 8-lead

LFCSP packages.

SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM

12V

VCC

BST

ADP3118

BST2

BST1

DRVH

DELAY

BST

INDUCTOR

CMP

VCC

CMP

DRVL

PGND

CONTROL

LOGIC

DELAY

Figure 1.

¹Flex-Mode™ is protected by U.S. Patent 6683441.

January 2008 – Rev. 2

Publication Order Number:

ADP3118/D

12 3 4 5 6 7...14

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ADP3118JRZ-RL	ONSEMI	获取价格	Dual Bootstrapped 12 V MOSFET Driver with Output Disable
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ADP3120A	ONSEMI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3120AJCPZ-RL	ONSEMI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3120AJCPZ-RL	ADI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable