Datasheet > MAX8811_07

MAX8811_07

更新时间： 2024-02-16 02:21:49

品牌	Logo	应用领域
美信 - MAXIM		驱动器二极管
页数	文件大小	规格书
11页	167K
描述
High-Speed, Dual-Phase Driver with Integrated Boost Diodes

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数据手册

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MAX8811_07 数据手册

19-3974; Rev 1; 4/07

High-Speed, Dual-Phase Driver

with Integrated Boost Diodes

General Description

Features

The MAX8811 2-phase gate driver controls power

MOSFETs in multiphase synchronous step-down con-

verter applications, providing up to 30A output current

per phase. The MAX8811 and MAX8810A (multiphase

power-supply controller) combine to provide an efficient,

low-cost solution for a wide range of multiphase power-

supply applications. The MAX8811 handles system input

voltages up to 26V. Each MOSFET driver is capable of

driving 3000pF capacitive loads with 11ns typical rise

and fall times.

♦ Dual-Phase Synchronous Buck Driver

♦ Integrated Bootstrap Diodes

♦ Up to 26V System Input Voltage

♦ 6A Peak Gate Drive Current

♦ Capable of 30A per Phase

♦ 0.4Ω/0.9Ω Low-Side, 0.7Ω/1.0Ω High-Side

Drivers (typ)

Adaptive shoot-through protection circuitry is imple-

mented to prevent shoot-through currents for the “high-

side off to low-side on” transition. A programmable

delay is provided for the “low-side off to high-side on”

transition. This maximizes overall converter efficiency

while supporting operation with a variety of MOSFETs.

♦ Typical 11ns Rise/Fall Times with 3000pF Load

♦ Adaptive Dead-Time Control

♦ User-Programmable Delay Time

♦ Enable Function with 0.04µA (typ) Quiescent

Current in Shutdown

The MAX8811 provides an easy upgrade path from the

MAX8523 dual driver. Integrated bootstrap diodes

reduce external component count, while an enable

input provides flexibility for power sequencing. The

MAX8811 is available in a space-saving, 16-pin QSOP.

♦ Space-Saving, Lead-Free, 16-Pin QSOP

Ordering Information

Applications

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

Processor Core Voltage Regulators

Multiphase Buck Converters

Voltage-Regulator Modules (VRMs)

Switching Power Supplies

MAX8811EEE+

-40°C to +85°C

16 QSOP

E16-4

+Denotes a lead-free package.

DC-DC Converter Modules

Pin Configuration

Typical Operating Circuit

POWER INPUT

UP TO 26V

GATE-DRIVE SUPPLY

4.5V TO 7V

VL1

VL2

TOP VIEW

DH1

BST1

16 BST2

15 DH2

14 LX2

OUTPUT

LX1

DL1

DH1

LX1

VL1

MAX8811

13 VL2

DLY

PGND1

DL1

12 DL2

MAX8811

PGND1

11 PGND2

10 PWM2

DH2

BST2

OFF

DLY

PWM1

LX2

DL2

PWM1

PWM2

QSOP

PGND2

PWM CONTROL

SIGNALS

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...11

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与MAX8811_07相关器件

型号	品牌	获取价格	描述	数据表
MAX8811EEE+	MAXIM	获取价格	High-Speed, Dual-Phase Driver with Integrated Boost Diodes
MAX8811EEE+T	MAXIM	获取价格	Buffer/Inverter Based MOSFET Driver, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITHC, MO-137A
MAX8814	MAXIM	获取价格	28V Linear Li+ Battery Charger with Smart Autoboot Assistant
MAX8814	ADI	获取价格	28V线性Li+电池充电器，提供智能化管理
MAX8814ETA+	MAXIM	获取价格	28V Linear Li+ Battery Charger with Smart Autoboot Assistant
MAX8814ETA+T	MAXIM	获取价格	Switching Regulator/Controller, PDSO8,
MAX8814EVKIT	MAXIM	获取价格	Fully Assembled and Tested
MAX8814EVKIT+	MAXIM	获取价格	Fully Assembled and Tested
MAX8815A	MAXIM	获取价格	1A, 97% Efficiency, 30レA Quiescent Current St
MAX8815A	ADI	获取价格	1A、97%效率、30μA静态电流、升压转换器，具有真关断

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