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MAX8811

Maxim Integrated Products
Part Number MAX8811
Manufacturer Maxim Integrated Products
Description High SPeed Dual Phase Driver
Published Nov 12, 2006
Detailed Description www.DataSheet4U.com 19-3974; Rev 0; 1/06 KIT ATION EVALU E L B AVAILA High-Speed, Dual-Phase Driver with Integrated B...
Datasheet PDF File MAX8811 PDF File

MAX8811
MAX8811

Overview
www.
DataSheet4U.
com 19-3974; Rev 0; 1/06 KIT ATION EVALU E L B AVAILA High-Speed, Dual-Phase Driver with Integrated Boost Diodes General Description Features ♦ 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) ♦ 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 ♦ Space-Saving, Lead-Free, 16-Pin QSOP MAX8811 The MAX8811 2-phase gate driver controls power MOSFETs in multiphase synchronous step-down converter 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 powersupply 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.
Adaptive shoot-through protection circuitry is implemented to prevent shoot-through currents for the “highside 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.
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.
Ordering Information PART MAX8811EEE+ TEMP RANGE -40°C to +85°C PINPACKAGE 16 QSOP PKG CODE E16-4 Applications Processor Core Voltage Regulators Multiphase Buck Converters Voltage-Regulator Modules (VRMs) Switching Power Supplies DC-DC Converter Modules + = Denotes lead-free package.
Pin Configuration Typical Operating Circuit GA...


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