Datasheet

UCC28089
SLUS623A -- SEPTEMBER 2004 -- REVISED AUGUST 2006
13
www.ti.com
TYPICAL CHARACTERISTICS
Figure 7
OSCILLATOR FREQUENCY
vs
TEMPERATURE
f
s
-- Oscillator Frequency-- kHz
Tj -- Temperature -- °C
--50 50
190
180
25 100
750-- 2 5
185
195
210
200
205
215
220
R
A
=110kΩ
R
B
= 182 Ω
C
T
= 220 pF
Figure 8
Tj -- Temperature -- °C
--50 50 125
98
94
25 100750-- 2 5
96
100
106
102
104
108
110
90
92
OSCILLATOR FREQUENCY
vs
TEMPERATURE
f
s
-- Oscillator Frequency-- kHz
R
A
= 221 kΩ
R
B
=3.32Ω
C
T
= 220 pF
Figure 9
Tj -- Temperature -- °C
--50 50 125
--1.0%
--2.0%
25 100750-- 2 5
--1.5%
--0.5%
1.0%
0.0%
0.5%
1.5%
2.0%
OSCILLATOR FREQUENCY SHIFT
vs
TEMPERATURE
f
s
-- Normalized to 25°C-- kHz
R
A
=110kΩ
R
B
= 182 Ω
C
T
= 220 pF
R
A
= 221 kΩ
R
B
=3.32Ω
C
T
= 220 pF
VDD = 9 V
Figure 10
OSCILLATOR FREQUENCY SHIFT
vs
SUPPLY VOLTAGE
f -- Frequency, Normalized -- %
V
DD
-- Supply Voltage -- V
81215
0.0%
--0.5%
11 1413109
0.5%
1.5%
1.0%
2.0%
R
A
=110kΩ
R
B
= 182 Ω
C
T
= 220 pF
R
A
= 221 kΩ
R
B
=3.32Ω
C
T
= 220 pF