TLE4471 Datasheet, PDF (14/26 Pages) Infineon Technologies AG – Triple Voltage Regulator

TLE 4471
Characteristics (cont’d)
V_I = 13.5 V; T_j = – 40 °C < T_j < 125 °C
Parameter
Symbol
Limit Values
Unit Measuring Condition
min. typ. max.
Watchdog
Watchdog input pull
down resistor
Watchdog delay
charging current
Watchdog upper
timing threshold
Watchdog lower
timing threshold
Watchdog trigger
pulse interval
R_W
I_{DW, ch}
V_{DW, dt}
V_{DW, st}
t_wp
5
15 40 kΩ –
2
46
µA V_DW= 1V; V_DR= 2.7V
1.5 1.9 2.5 V –
0
30 200 mV –
35 50 70 ms C_DW = 100 nF;
Data Sheet Rev. 1.1
14
2001-09-06