Datasheet > ISL6612A

ISL6612A

更新时间： 2024-09-14 22:55:35

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器
页数	文件大小	规格书
12页	324K
描述
Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP

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ISL6612A 数据手册

ISL6612A, ISL6613A

Data Sheet

July 25, 2005

FN9159.4

Advanced Synchronous Rectified Buck

MOSFET Drivers with Pre-POR OVP

Features

• Pin-to-pin Compatible with HIP6601 SOIC family

The ISL6612A and ISL6613A 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 HIP63xx or

ISL65xx Multi-Phase Buck PWM controllers and N-Channel

MOSFETs form complete core-voltage regulator solutions for

advanced microprocessors.

• Dual MOSFET Drives for Synchronous Rectified Bridge

• Advanced Adaptive Zero Shoot-Through Protection

- Body Diode Detection

- Auto-zero of r

Conduction Offset Effect

DS(ON)

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

• 36V Internal Bootstrap Schottky Diode

The ISL6612A drives the upper gate to 12V, while the lower

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

12V. The ISL6613A 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.

• Bootstrap Capacitor Overcharging Prevention

• Supports High Switching Frequency (up to 2MHz)

- 3A Sinking Current Capability

- Fast Rise/Fall Times and Low Propagation Delays

• Three-State PWM Input for Output Stage Shutdown

An advanced 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 startup.

• Three-State PWM Input Hysteresis for Applications With

Power Sequencing Requirement

• Pre-POR Overvoltage Protection

• VCC Undervoltage Protection

• 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

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.

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Core Regulators for Intel® and AMD® Microprocessors

• 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 1-888-468-3774 | 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...12

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与ISL6612A相关器件

型号	品牌	获取价格	描述	数据表
ISL6612A_06	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACB	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACB-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACBZ	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACBZA	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACBZA-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACBZ-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACR	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACR-T	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP
ISL6612ACRZ	INTERSIL	获取价格	Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP

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