IR3086AMTRPBF International Rectifier, IR3086AMTRPBF Datasheet

IR3086AMTRPBF

Manufacturer Part Number

IR3086AMTRPBF

Description

IC CTLR XPHASE 28-MLPQ

Manufacturer

International Rectifier

Series

XPhase™r

Datasheets

1.IR3086AMTRPBF.pdf (33 pages)

2.IR3086AMTRPBF.pdf (33 pages)

3.IR3086AMTRPBF.pdf (33 pages)

Specifications of IR3086AMTRPBF

Package / Case

20-MLPQ

Mounting Type

Surface Mount

Current - Supply

10mA

Voltage - Supply

8.4 V ~ 14 V

Operating Temperature

0°C ~ 125°C

Applications

Processor

Package

20-Lead MLPQ

Circuit

X-Phase Phase IC

Iout (a)

2.5A Gate Driver

Pbf

PbF Option Available

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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DESCRIPTION

FEATURES

APPLICATION CIRCUIT

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The IR3086A Phase IC combined with an IR XPhase

to implement power solutions for the latest high performance CPUs and ASICs. The “Control” IC provides

overall system control and interfaces with any number of “Phase” ICs which each drive and monitor a single

phase of a multiphase converter. The XPhase

expensive, and easier to design while providing higher efficiency than conventional approaches.

•

5 Wire Analog Bus

From Control IC

2.5A Average Gate Drive Current

Loss-Less Inductor Current Sense

Internal Inductor DCR Temperature Compensation

Programmable Phase Delay

Programmable Feed-Forward Voltage Mode PWM Ramp

Sub 100ns Minimum Pulse Width supports 1MHz per-phase operation

Current Sense Amplifier drives a single wire Average Current Share Bus

Current Share Amplifier reduces PWM Ramp slope to ensure sharing between phases

Body Braking

output voltage at converter turn-off

OVP comparator with 150ns response

Phase Fault Detection

Programmable Phase Over-Temperature Detection

Small thermally enhanced 20L MLPQ package

XPHASE

PHASE FAULT

VGATE

VRHOT

ISHARE

DAC

BIAS

RAMP

disables Synchronous MOSFET for improved transient response and prevents negative

12V

PHASE IC WITH OVP, FAULT AND OVERTEMP DETECT

RBIASIN

CSCOMP

RMPIN+

RMPIN-

HOTSET

VRHOT

ISHARE

20k

architecture results in a power supply that is smaller, less

IR3086A

PHASE

Control IC provides a full featured and flexible way

RCS-

CCS-

CVCC

GATEH

GATEL

VCCH

PGND

VCCL

RVCC

RPWMRMP

DBST

CVCCL

CCS+

RCS+

CBST

DATA SHEET

IR3086A

CIN

1/31

/05

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