S-19500A03A-E8T1U4 Datasheet, PDF (43/52 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION

FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION
Rev.1.2_01
S-19500/19501 Series
3. 5 Watchdog activation current, watchdog deactivation current vs. Junction temperature
3. 5. 1 VOUT = 3.3 V
3.0
VIN = 13.5 V
2.5
IO,WDact
2.0
1.5
1.0
0.5
IO,WDdeact
0.0
40 25 0
25 50 75 100 125 150
Tj [C]
3. 5. 2 VOUT = 5.0 V
3.0
VIN = 13.5 V
2.5
IO,WDact
2.0
1.5
1.0
0.5
IO,WDdeact
0.0
40 25 0
25 50 75 100 125 150
Tj [C]
3. 6 Watchdog activation current, Watchdog deactivation current
vs. Watchdog activation threshold current adjustment resistor (Ta = +25°C)
3. 6. 1 VOUT = 3.3 V
100
VIN = 13.5 V
3. 6. 2 VOUT = 5.0 V
100
VIN = 13.5 V
80
80
60
IO,WDact
40
IO,WDdeact
20
60
IO,WDact
40
IO,WDdeact
20
0
10
100
1000
RWADJ,ext [k]
10000
0
10
100
1000
RWADJ,ext [k]
10000
43