www.irf.com

5

14 Lead PDIP

14 Lead SOIC

IR21084

IR21084S

Lead Assignments

8 Lead PDIP

8 Lead SOIC

1

2

3

4

8

7

6

5

VCC

HIN

LIN

COM

VB

HO

VS

LO

1

2

3

4

8

7

6

5

VCC

HIN

LIN

COM

VB

HO

VS

LO

1

2

3

4

5

6

7

13

12

11

10

9

8

VCC

HIN

LIN

DT

VSS

COM

LO

VB

HO

VS

1

2

3

4

5

6

7

13

12

11

10

9

8

VCC

HIN

LIN

DT

VSS

COM

LO

VB

HO

VS

Lead Definitions

Symbol Description

HIN

Logic input for high side gate driver output (HO), in phase (referenced to COM for IR2108 and

VSS for IR21084)

Logic input for low side gate driver output (LO), out of phase (referenced to COM for IR2108

and VSS for IR21084)

DT

Programmable dead-time lead, referenced to VSS. (IR21084 only)

VSS

Logic Ground (21084 only)

High side floating supply

HO

High side gate driver output

High side floating supply return

Low side and logic fixed supply

LO

Low side gate driver output

COM

Low side return

LIN

IR2108

IR2108S