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5

Lead Assignments

28 Lead DIP

44 Lead PLCC w/o 12 Leads

28 Lead SOIC (Wide Body)

IR2131

IR2131J

IR2131S

Part Number

Lead

Symbol

Description

Logic inputs for high side gate driver outputs (HO1,2,3), out of phase

Logic inputs for low side gate driver output (LO1,2,3), out of phase

Logic input for fault clear

SD

Logic input for shutdown

Indicates over-current or undervoltage lockout (low side) has occurred, negative logic

Low side and logic fixed supply

ITRIP

Input for over-current shutdown

Logic ground

High side floating supplies

HO1,2,3

High side gate drive outputs

High side floating supply returns

LO1,2,3

Low side gate drive outputs

COM

Low side return

Lead Definitions

HIN1,2,3

FAULT

FLT - CLR

LIN1,2,3