TLE4268_07 Datasheet, PDF (8/17 Pages) Infineon Technologies AG – 5-V Low Drop Fixed Voltage Regulator Output voltage tolerance ≤ ±2%

TLE 4268
Table 5
Characteristics (cont’d)
V_I = 13.5 V; -40 °C ≤ T_j ≤ 125 °C (unless otherwise specified)
Parameter
Symbol
Limit Values
Unit Test Condition
Min. Typ. Max.
Watchdog
Discharge current
I_D,d
Charging current
I_D,c
Upper timing
V_DU
threshold
1.5 3.5 5.2 µA V_D = 1.0 V
5
12
18
µA V_D = 1.0 V
1.4 1.8 2.2 V –
Lower timing
threshold
V_DWL
0.2
0.4
0.55 V
–
Watchdog period
T_WP
30
55
75
ms C_D = 100 nF
Watchdog trigger time T_WT
25
40
60
ms C_D = 100 nF
Activating current
I_Q
2
8
15
mA Activates watchdog
Slew rate
dV_W/dt 5
–
–
V/µs from 20% up to
80% V_Q2)
1) Drop voltage = V_I - V_Q (measured when the output voltage has dropped 100 mV from the nominal value
obtained at 13.5 V input)
2) Watchdog pulse recognition tested with 10 kHz max. pulse frequency
Note: The reset output is low in range from V_Q = 1 V to V_Q,rt.
Data Sheet
8
Rev. 1.5, 2007-03-20