ISL99201

FN6742 Rev 2.00

Page 9 of 11

November 1, 2013

FIGURE 19. SUPPLY RIPPLE REJECTION RATIO vs DC

COMMON MODE VOLTAGE

FIGURE 20. COMMON MODE REJECTION RATIO vs COMMON

MODE INPUT VOLTAGE

-70

-60

-50

-40

-30

-20

-10

0

0.25 0.75 1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25

DC COMMON MODE VOLTAGE (V)

-80

-70

-60

-50

-40

-30

-20

-10

0.25

1.25

2.25

3.25

4.25

5.25

0

COMMON INPUT VOLTAGE (V)

Typical Applications

H-BRIDGE

POWER

STAGE

AND

SR

CONTROL

PWM

SAWTOOTH

GENERATOR

BIAS

AND

REFERENCE

SYNC

SD

VO+

VO-

GND

DIFFERENTIAL

INPUT

C3

RI

RI

RI, REV D

+

-

FIGURE 21. TYPICAL CIRCUIT WITH DIFFERENTIAL INPUT

H-BRIDGE

POWER

STAGE

AND

SR

CONTROL

PWM

SAWTOOTH

GENERATOR

BIAS

AND

REFERENCE

SYNC

SD

VO+

VO-

GND

DIFFERENTIAL

INPUT

C3

RI

RI

RI, REV D

+

-

FIGURE 22. TYPICAL CIRCUIT WITH DIFFERENTIAL INPUT AND INPUT CAPACITORS