Datasheet

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)
UCC2895-Q1
www.ti.com SLUS783C –MAY 2008–REVISED AUGUST 2012
ELECTRICAL CHARACTERISTICS (continued)
V
DD
= 12 V, R
T
= 82 kΩ, C
T
= 220 pF, R
DELAB
= 10 kΩ, R
DELCD
= 10 kΩ, C
REF
= 0.1 μF, C
VDD
= 0.1 μF, no load on the outputs,
T
A
= T
J
= –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Soft Start/Shutdown
I
SOURCE
Soft-start source current SS/DISB = 3 V, CS = 1.9 V –40 –35 –30 μA
I
SINK
Soft-start sink current SS/DISB = 3 V, CS = 2.6 V 325 350 375 μA
Soft-start/disable comparator threshold 0.44 0.5 0.56 V
Adaptive Delay Set (ADS)
ADS = CS = 0 V 0.45 0.5 0.55
DELAB/DELCD output voltage V
ADS = 0 V, CS = 2 V 1.9 2 2.1
t
DELAY
Output delay
(2) (3)
ADS = CS = 0 V 450 560 620 ns
ADS bias current 0 V < ADS < 2.5 V, 0 V < CS < 2.5 V –20 20 μA
Output
V
OH
High-level output voltage (all outputs) I
OUT
= –10 mA, VDD to output 250 420 mV
V
OL
Low-level output voltage (all outputs) I
OUT
= 10 mA 150 270 mV
t
R
Rise time
(2)
C
LOAD
= 100 pF 20 35 ns
t
F
Fall time
(2)
C
LOAD
= 100 pF 20 35 ns
(2) Specified by design
(3) Output delay is measured between OUTA and OUTB or between OUTC and OUTD. Output delay is defined as shown in the following
figure, where:
t
f(OUTA)
= falling edge of OUTA signal
t
r(OUTB)
= rising edge of OUTB signal
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