SIP2800 Datasheet, PDF (4/8 Pages) Vishay Siliconix – Low Power Consumption Current Mode Controller

SiP2800/01/02/03/04/05
Vishay Siliconix
New Product
TYPICAL CHARACTERISTICS
1000
SiP2800/01/02/04
Oscillator Frequency vs. R_t and C_t
SiP2803/05
Oscillator Frequency vs. R_t and C_t
1000
100
10
10
100
R_t (kΩ)
C_t = 100 pF
C_t = 200 pF
C_t = 330 pF
C_t = 1000 pF
1000
100
10
10
100
R_t (kΩ)
C_t = 100 pF
C_t = 200 pF
C_t = 330 pF
C_t = 1000 pF
1000
Oscillator Dead Time vs. C_t
500
COMP to CS Offset Voltage vs. Temperature
1.3
450 R_t = 100 kΩ
400
CS = 0 V
1.2
350
1.1
300
SiP2803/05
250
1.0
200
SiP2800/01/02/04
0.9
150
100
0.8
50
0
100 200 300 400 500 600 700 800 900 1000
0.7
--50 --25 0
25 50 75
C_t (pf)
Temperature (_C)
Error Amplifier Gain and Phase vs. Frequency
80
70
60
135
50
Phase
40
90
100 125 150
30
Gain
20
45
10
0
0
--10
--20
--30
1
10
100
Frequency (kHz)
1000
--45
10000
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4
Document Number: 72660
S-41623—Rev.C, 30-Aug-04