HA16103 Datasheet, PDF (16/21 Pages) Hitachi Semiconductor – Watchdog Timer

HA16103 FPJ/FPK
• Low-voltage inhibit section
Low-Voltage Reset Pulse Delay vs. C_RES
T _a = 25°C
V_CC = 12 V
3m
R₁ = 30 kΩ
2m
Rf = 360 kΩ
Rf = 560 kΩ
1m
0 1000 p
Rf = 180 kΩ
2000 p 3000 p 5000 p 7000 p 10000 p
C _RES (F)
Permissible P-RUN Pulse Duty Cycle vs. P-RUN Pulse Frequency
20 k
10 k
Ta = 25°C
5 k V_IN = 12 V
2k
Runaway detected
at 100%
1k
Permissible P-RUN
500
duty cycle
200
AB
100
50
duty =
B
A+B
× 100
20
10
0
20
40
60
80 100
P-RUN Pulse Duty Cycle (%)
16