Datasheet

UCC28089
SLUS623A -- SEPTEMBER 2004 -- REVISED AUGUST 2006
16
www.ti.com
TYPICAL CHARACTERISTICS
Figure 19
SUPPLY CURRENT
vs
OSCILLATOR F REQUENCY (NO LOAD)
IDD -- Supply Current -- mA
f
OSC
-- Oscillator Frequency -- kHz
0 600 K 1 M
1.0
800 K400 K200 K
1.5
2.0
3.0
2.5
3.5
4.0
V
DD
=14V
V
DD
=12V
V
DD
=9V
Figure 20
0 600 K 1 M
6
4
400 K 800 K200 K
8
14
10
12
16
18
0
2
SUPPLY CURRENT
vs
OSCILLATOR FREQUENCY (1 nF LOADS)
IDD -- Supply Current -- mA
f
OSC
-- Oscillator Frequency -- kHz
V
DD
=14V
V
DD
=12V
V
DD
=9V
Figure 21
t -- Time -- 1 ms/div.
OUTA
OUTB
SYNC
CT
TYPICAL SOFT START WAVEFORMS
Figure 22
t -- Time -- 1 ms/div.
OUTA
OUTB
SYNC
CT
T
Y
PIC
A
LO
V
ER
A
LL ST
A
RT--UP W
A
V
EFORMS