TLE4263-2ES Datasheet, PDF (15/22 Pages) Infineon Technologies AG – 5-V Low Dropout Voltage Regulator

TLE4263-2ES
Electrical Characteristics
5.9
Watchdog Function
Electrical Characteristics Watchdog Function
V_I = 13.5 V, -40 °C ≤ T_j ≤ 150 °C, V_INH > 3.6 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
5.9.1
5.9.2
5.9.3
5.9.4
Discharge Current
Upper Timing Threshold
Lower Timing Threshold
Watchdog Trigger Time
5.9.5 Watchdog Output Low Time
5.9.6
Watchdog Period
T_WI,p = T_WD,L + T_WI,tr
I_D,wd
V_DU
V_DWL
T_WI,tr
T_WD,L
T_WI,p
4.40 6.25 9.40 µA
1.40 1.70 2.20 V
0.20 0.35 0.55 V
16
22.5 27
ms
1
2.1
3.5
ms
17
24.6 30.5 ms
V_D = 1.0 V
–
–
C_D = 100 nF
V_Q > V_Q,RT
C_D = 100 nF
V_Q > V_Q,RT
C_D = 100 nF
V_Q > V_Q,RT
5.10
Typical Performance Characteristics Watchdog
Charge Current and Discharge Current
versus Temperature
80
µA
Ι ₇₀
60
AED03064
Ι _{D, ch}
50
V _Ι = 13.5 V
V _D = 1.5 V
40
30
20
10
Ι _{D, dis}
0
-40 0 40 80 120 C 160
T_j
Watchdog Trigger Time
versus Temperature
40
ms
T_{WI,tr 35}
AED03065_4263
30
25
V _Ι = 13.5 V
C_D = 100 nF
20
15
10
5
0
-40 0 40 80 120 C 160
T_j
Data Sheet
15
Rev. 1.0, 2008-04-21