SI9105 Datasheet, PDF (4/7 Pages) Vishay Siliconix – 1-W High-Voltage Switchmode Regulator

Si9105
Vishay Siliconix
TIMING WAVEFORMS
1.5 V −
SOURCE
0
V_CC −
DRAIN
0
50%
t_r v 10 ns
t_d
10%
FIGURE 1.
V_CC
SHUTDOWN
50%
0−
V_CC −
DRAIN
0
t_f v 10 ns
t_SD
10%
FIGURE 2.
V_CC
SHUTDOWN
0−
V_CC
RESET
0−
50%
50%
t_SW
t_LW
TYPICAL CHARACTERISTICS
FIGURE 3.
50% ^{tf, tf v 10 ns}
50%
50%
t_RW
Output Switching Frequency vs. Oscillator Resistance
1M
100 k
www.vishay.com
4
10 k
10 k
100 k
1M
r_OSC − Oscillator Resistance (W)
FIGURE 4.
Document Number: 70003
S-42030—Rev. H, 15-Nov-04