SI9102_07 Datasheet, PDF (4/10 Pages) Vishay Siliconix – 3-W High-Voltage Switchmode Regulator

Si9102
Vishay Siliconix
TIMING WAVEFORMS
1.5 V -
SOURCE
0
V_CC -
DRAIN
0
50 %
t_r ≤ 10 ns
t_d
10 %
Figure 1.
V_CC
SHUTDOWN
50 %
0-
V_CC -
DRAIN
0
t_f ≤ 10 ns
t_SD
10 %
Figure 2.
V_CC
SHUTDOWN
0-
V_CC
RESET
0-
50 %
50 %
t_SW
t_LW
50 % ^{tr, tf ≤ 10 ns}
50 %
t_RW
50 %
Figure 3.
TYPICAL CHARACTERISTICS
140
V_CC = - V_IN
120
100
80
60
40
20
0
10
15
20
+I_IN (mA)
Figure 4. + V_IN vs. + I_IN at Start-Up
1M
100 k
10 k
10 k
100 k
1M
r_OSC - Oscillator Resistance (Ω)
Figure 5. Output Switching Frequency
vs. Oscillator Resistance
www.vishay.com
4
Document Number: 70001
S-70497-Rev. H, 19-Mar-07