UC2625-EP
SLUS802–MARCH 2008 .................................................................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS
Oscillator Frequency
vs
Tachometer on Time
vs
COSC and ROSC
RT and CT
100 ms
10 ms
1 MHz
R
T
– 500 k
R
T
– 100 k
R
OSC
– 10 k
100 kHz
R
OSC
– 10 k
1 ms
100 ms
10 ms
1 ms
R
OSC
– 100 k
10 kHz
1 kHz
R
T
– 10 k
R
T
– 30 k
0.001
0.01
– mF
0.1
100 Hz
0.001
0.01
(mF)
0.1
C
T
C
OSC
Figure 1.
Figure 2.
Supply Current
vs
Temperature
Soft-Start Pullup Current
vs
Temperature
20
18
16
-5
-6
-7
14
12
10
-8
-9
-10
8
6
-11
-12
4
2
-13
-14
0
-75
-15
-75
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature – 5C
Temperature – 5C
Figure 3.
Figure 4.
10
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