IR2151

4

Functional Block Diagram

Lead Assignments

8 Lead DIP

8 Lead SOIC

IR2151

IR2151S

V

B

PULSE

GEN

DELAY

HV

LEVEL

SHIFT

V

CC

PULSE

FILTER

DEAD

TIME

LO

HO

V

S

COM

R

S

Q

15.6V

C

T

R

T

UV

DETECT

+

-

+

-

R

Q

SQ

R

R

R

DEAD

TIME

Symbol Description

Oscillator timing resistor input,in phase with LO for normal IC operation

Oscillator timing capacitor input, the oscillator frequency according to the following equation:

f

=

×+

×

1

1.4 (R

75 ) C

TT

Ω

where 75

High side floating supply

HO

High side gate drive output

High side floating supply return

Low side and logic fixed supply

LO

Low side gate drive output

COM

Low side return

Lead Definitions