t

PERIOD

OUTA

OUTC

OUTA

OUTB

Same applies to OUTB and OUTD

Same applies to OUTC and OUTD

t

= t

– t

DELAY

f(OUTB)

f(OUTA)

t

= t

– t

DELAY

f(OUTC)

f(OUTA)

F = 180 ×

t

t

PERIOD

or

t

f (OUTC)

f (OUTB)

t

PERIOD

– t

F = 180 ×

Space

Space

UCC2895-Q1

SLUS783C – MAY 2008 – REVISED AUGUST 2012

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

PWM Comparator

EAOUT to RAMP input offset voltage

RAMP = 0 V, DELAB = DELCD = REF

0.7

0.85

1.05

V

RAMP = 0 V, EAOUT = 650 mV

0

0.85%

1.5%

(OUTA to OUTC, OUTB to OUTD)

0 V < RAMP < 2.5 V, EAOUT = 1.2 V,

70

120

ns

(RAMP to OUTC, RAMP to OUTD)

DELAB = DELCD = REF

RAMP bias current

RAMP < 5 V, CT = 2.2 V

–5

5

μA

RAMP sink current

RAMP = 5 V, CT = 2.6 V

11

19

mA

(4)

Minimum phase shift is defined as:

where:

Space

(5)

Output delay is measured between OUTA and OUTB or between OUTC and OUTD. Output delay is defined as shown in the following

figure, where:

6

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