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HA1835P/HA1848P
5k
Ta = 25°C
VIN = 12 V
2k
1k
500
Allowable operation
clock pulse duty
cycle
200
AB
100
Duty = B
A+B
50
30
0
20
40
60
80
100
Clock pulse duty cycle (%)
Figure 7 Clock Pulse Frequency vs. Clock Pulse Duty Cycle
20 k
Ta = 25°C
VIN = 12 V
Duty = 50%
10 k
5k
System run-away
sense region
2k
1k
500
Normal operation region
200
100
50
System run-away
sense region
20
100 k
200 k
500 k
Resistor Rf (Ω)
Figure 8 Clock Pulse Frequency vs. Resistor
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