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IR3094PBF

3 PHASE PWM CONTROLLER FOR POINT OF LOAD

International Rectifier 

Data Sheet No. PD 94716

IR3094PBF

3 PHASE PWM CONTROLLER FOR POINT OF LOAD

DESCRIPTION

The IR3094 Control IC provides a full featured, cost effective, single chip solution to offers a compact,

efficient solution for high current POL converters. Control and 3 Phase Gate Drive functions are integrated

into a single space-saving IC.

FEATURES

x 0.85V Reference Voltage

x 3A GATELX Pull Down Drive Capability

x Programmable 100KHz to 540KHz oscillator

x Programmable Voltage Positioning (can be disabled)

x Programmable Softstart

x Programmable Hiccup Over-Current Protection with Delay to prevent false triggering

x Simplified Powergood provides indication of proper operation and avoids false triggering

x Operates up to 16V converter input with 7.5V Under-Voltage Lockout

x 4.36V Under-Voltage Lockout threshold for gate driver voltage

x Adjustable Voltage, 150mA Bias Regulator provides MOSFET Drive Voltage

x Enable Input

x OVP Flag Output detects high side fet short at powerup

x Separate OVP sense line to sense the output voltage and latched OVP with protection

x Inductor DCR sensing for current sensing will support up to 5.1V output applications

x Available 48L MLPQ package

ORDERING INFORMATION

Device

IR3094MTRPBF

IR3094MPBF

Order Quantity

3000 per Reel

100 piece strips

PACKAGE INFORMATION

NC

NC

ROSC

VOSNS-

OCSET

VREF

VDRP

FB

EAOUT

SS/DEL

SCOMP2

SCOMP3

IR3094

48LD MLPQ

GATEH1

PGND1

GATEL1

VCCL1_2

5VUVL

GATEL2

PGND2

GATEH2

VCCH2

VCCH3

GATEH3

PGND3

48L MLPQ

(7 x 7 mm Body)

JA = 27oC/W

Page 1 of 29

09/26/05

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