ISL6571CRZ-T INTERSIL [Intersil Corporation], ISL6571CRZ-T Datasheet

ISL6571CRZ-T

Manufacturer Part Number

ISL6571CRZ-T

Description

Complementary MOSFET Driver and Synchronous Half-Bridge Switch

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.ISL6571CRZ-T.pdf (11 pages)

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Complementary MOSFET Driver and

Synchronous Half-Bridge Switch

The Intersil ISL6571 provides a new approach for

implementing a synchronous rectified buck switching

regulator. The ISL6571 replaces two power MOSFETs, a

Schottky diode, two gate drivers and synchronous control

circuitry. Its main applications address high-density power

conversion circuits including multiphase-topology computer

microprocessor core power regulators, ASIC and memory

array regulators, etc. Another useful feature of the ISL6571

is the compatibility with three-state input control: left open,

the PWM input turns off both output drives. The ISL6571

operates in continuous conduction mode reducing EMI

constraints and enabling high bandwidth operation.

Ordering Information

ISL6571CR*

ISL6571CRZ*

(See Note)

ISL6571EVAL1

*Add “-T” suffix for tape and reel.

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

PART NUMBER

Evaluation Board

RANGE (°C)

0 to 70

TEMP.

68 Ld 10x10 QFN L68.10x10A

68 Ld 10x10 QFN

(Pb-free)

PACKAGE

Data Sheet

L68.10x10A

DWG. #

PKG.

1-888-INTERSIL or 1-888-352-6832

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

Features

• Improved Performance over Conventional Synchronous

• Optimal Deadtime Provided by Adaptive Shoot-Through

• Switching Frequency up to 1MHz

• Reduced Connection Parasitics between Discrete

• Low Profile, Low Thermal Impedance Packaging

• QFN Package:

• Pb-Free Available (RoHS Compliant)

Applications

• Multiphase Power Regulators

• Low-Voltage Switchmode Power Conversion

• High-Density Power Converters

Buck Converter using Discrete Components

- High-Bandwidth, Fast Transient Response

- Small, Low Profile Converters

Components

- Low Electromagnetic Emissions

- High Power Density Applications

- Compliant to JEDEC PUB95 MO-220

- Near Chip Scale Package footprint, which improves

QFN - Quad Flat No Leads - Package Outline

PCB efficiency and has a thinner profile

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

April 18, 2005

Intersil (and design) is a registered trademark of Intersil Americas Inc.

ISL6571

FN9082.4

Related parts for ISL6571CRZ-T

ISL6571CRZ-T Summary of contents

Page 1

... Ordering Information TEMP. PART NUMBER RANGE (°C) PACKAGE ISL6571CR 10x10 QFN L68.10x10A ISL6571CRZ 10x10 QFN (See Note) (Pb-free) ISL6571EVAL1 Evaluation Board *Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free products employ special Pb-free material sets ...

Page 2

Pinout PHASE 1 PHASE 2 3 PHASE PHASE 4 5 PHASE PHASE 6 PHASE 7 PHASE 8 PHASE 9 PHASE 10 PHASE 11 12 PHASE 13 PHASE 14 PHASE PHASE 15 PHASE 16 PHASE 17 2 ISL6571 ISL6571 (QFN) TOP ...

Page 3

VCC POWER-ON RESET (POR) + CONTROL 5V LOGIC - 10K PWM 10K GND PVCC DRIVE1 GATE CONTROL PVCC DRIVE2 LGATE1 FIGURE 1. BLOCK DIAGRAM VIN BOOT UFET PHASE LGATE LFET PGND ...

Page 4

PWM +12VIN +5VIN 20 VCC PWM4 PWM1 18 ISEN4 ISEN1 17 PWM2 POWER GOOD 19 PGOOD ISEN2 U1 HIP6301 8 FS/DIS PWM3 R FS ISEN3 COMP 5 VID0 4 VID1 3 VID2 2 VID3 1 VID4 FB GND ...

Page 5

Absolute Maximum Ratings Bias Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+15V Driver Supply, PVCC . ...

Page 6

Typical Performance Curves/Setup +12V +5V C PVCC +12V C VCC VCC PVCC BOOT VIN CONTROL PWM AND PHASE DRIVERS ISL6571 GND PGND FIGURE 4. TYPICAL TEST CIRCUIT 126 PVCC 108 V = 10V PVCC ...

Page 7

Typical Performance Curves/Setup FIGURE 10. ISL6571 EFFICIENCY AT 200kHz, 300kHz, 500kHz, 750kHz Functional Pin Descriptions VCC (Pin 54) Provide a 12V bias supply for the driver IC to this pin. The voltage at this pin is monitored for Power-On Reset ...

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ISL6571CRZ-T datasheet download

ISL6571CRZ-T INTERSIL [Intersil Corporation], ISL6571CRZ-T Datasheet

ISL6571CRZ-T

Related parts for ISL6571CRZ-T

ISL6571CRZ-T Summary of contents

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