Datasheet > ISL6594ACB

ISL6594ACB

更新时间： 2024-09-28 22:57:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器接口集成电路光电二极管
页数	文件大小	规格书
10页	305K
描述
Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features

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ISL6594ACB 数据手册

ISL6594A, ISL6594B

Data Sheet

May 6, 2005

FN9157.1

Advanced Synchronous Rectified Buck

MOSFET Drivers with Protection Features

Features

• Dual MOSFET Drives for Synchronous Rectified Bridge

• Adjustable Gate Voltage (5V to 12V) for Optimal Efficiency

• 36V Internal Bootstrap Schottky Diode

The ISL6594A and ISL6594B are high frequency MOSFET

drivers specifically designed to drive upper and lower power

N-Channel MOSFETs in a synchronous rectified buck

converter topology. These drivers combined with the

ISL6592 Digital Multi-Phase Buck PWM controller and

N-Channel MOSFETs form a complete core-voltage

regulator solution for advanced microprocessors.

• Bootstrap Capacitor Overcharging Prevention

• Supports High Switching Frequency (up to 2MHz)

- 3A Sinking Current Capability

- Fast Rise/Fall Times and Low Propagation Delays

The ISL6594A drives the upper gate to 12V, while the lower

gate can be independently driven over a range from 5V to

12V. The ISL6594B drives both upper and lower gates over

a range of 5V to 12V. This drive-voltage provides the

flexibility necessary to optimize applications involving trade-

offs between gate charge and conduction losses.

• Three-State PWM Input for Output Stage Shutdown

• Three-State PWM Input Hysteresis for Applications With

Power Sequencing Requirement

• Pre-POR Overvoltage Protection

• VCC Undervoltage Protection

An adaptive zero shoot-through protection is integrated to

prevent both the upper and lower MOSFETs from conducting

simultaneously and to minimize the dead time. These

products add an overvoltage protection feature operational

before VCC exceeds its turn-on threshold, at which the

PHASE node is connected to the gate of the low side

MOSFET (LGATE). The output voltage of the converter is

then limited by the threshold of the low side MOSFET, which

provides some protection to the microprocessor if the upper

MOSFET(s) is shorted during initial start-up.

• Expandable Bottom Copper Pad for Enhanced Heat

Sinking

• Dual Flat No-Lead (DFN) Package

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

• Pb-Free Available (RoHS Compliant)

Applications

• Core Regulators for Intel® and AMD® Microprocessors

These drivers also feature a three-state PWM input which,

working together with Intersil’s multi-phase PWM controllers,

prevents a negative transient on the output voltage when the

output is shut down. This feature eliminates the Schottky

diode that is used in some systems for protecting the load

from reversed output voltage events.

• High Current DC/DC Converters

• High Frequency and High Efficiency VRM and VRD

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Technical Briefs TB400 and TB417 for Power Train

Design, Layout Guidelines, and Feedback Compensation

Design

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...10

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与ISL6594ACB相关器件

型号	品牌	获取价格	描述	数据表
ISL6594ACB-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features
ISL6594ACB-T	RENESAS	获取价格	3A HALF BRDG BASED MOSFET DRIVER, PDSO8, PLASTIC, MS-012-AA, SOIC-8
ISL6594ACBZ	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features
ISL6594ACBZ	RENESAS	获取价格	3A HALF BRDG BASED MOSFET DRIVER, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8
ISL6594ACBZ-T	RENESAS	获取价格	3A HALF BRDG BASED MOSFET DRIVER, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8
ISL6594ACBZ-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features
ISL6594ACR	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features
ISL6594ACR-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features
ISL6594ACR-T	RENESAS	获取价格	3A HALF BRDG BASED MOSFET DRIVER, PDSO10, 3 X 3 MM, PLASTIC, DFN-10
ISL6594ACRZ	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features

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