Datasheet

Operation description VIPer20A-E
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Figure 14. Oscillator
Rt
Ct
OSC
VDD
~360Ω
CLK
FC00050
C
t
Fsw
40kHz
15nF
22nF
Forbidden area
Forbidden area
Ct(nF) =
Fsw(kHz)
880
1 2 3 5 10 20 30 50
30
50
100
200
300
500
1,000
Rt (k
Ω
)
Frequency (kHz)
Oscillator frequency vs Rt and Ct
Ct = 1.5 nF
Ct = 2.7 nF
Ct = 4.7 nF
Ct = 10 nF
FC00030FC00030
For R
t
> 1.2kΩ and C
t
≤ 40KHz