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7

Lead Definitions

Symbol

Description

Low side and logic supply voltage

VSS

Logic Ground

HIN1,2,3

Logic inputs for high side gate driver outputs (HOP1,2,3/HON1,2,3, out of phase)

LIN1,2,3

Logic inputs for low side gate driver outputs (LOP1,2,3/LON1,2,3, out of phase)

SD

Logic input for shutdown (hard shutdown, level sensitive signal, negative logic)

ITRIP

Logic input for overcurrent shutdown (soft shutdown, edge sensitive, negative signal)

FLTCLR

Logic input for FAULT clear (edge sensitive, negative signal)

BRIN

Logic input for brake driver, out of phase with BR

FAULT

Fault output indicates over current and desaturation shutdown (open drain)

BR

Brake driver output

COM

Brake driver return

High side gate drive floating supply

HOP1,2,3

High side driver pull up output

HON1,2,3

High side driver pull down output

HSSD1,2,3

High side soft shutdown output

DESAT1,2,3

IGBT desaturation protection input

High voltage floating supply return

LOP1,2,3

Low side driver pull up output

LON1,2,3

Low side driver pull down output

LSSD1,2,3

Low side soft shutdown output

LS1,2,3

Low side driver returns

Driver Output Circuit Block Diagram

350nsec

Filter

2usec

Blanking

VB

HOP

LOP

DESAT

VS

Soft Shutdown

Impedence =

500 ohms

Soft Shutdown

SSD

Desat Fault

High Side Gate

600nsec

Filter