TLE4678-2_15 Datasheet, PDF (27/33 Pages) Infineon Technologies AG – Low Drop Out Linear Voltage Regulator

TLE4678-2
Watchdog Function
8.3
Typical Performance Characteristics Standard Watchdog Function
Watchdog Activating Threshold I_Q,WDact,th versus
External Resistor R_WADJ,ext
24
T_j = 25° C
22
20
18
16
14
12
I_Q,WDact,th
[mA] ₁₀
8
6
4
2
0
1
10
100
1000
10000
R_{WADJ ,ext} [kΩ]
Watchdog Trigger Time t_WI,tr versus
Delay Capacitor C_D
1000
T_j = 25° C
Watchdog Deactivating Threshold I_Q,WDdeact,th
versus External Resistor R_WADJ,ext
24
T_j = 25° C
22
20
18
16
14
12
I_Q,WDdeact,th
[mA] ₁₀
8
6
4
2
0
1
10
100
1000
10000
R_{WADJ ,ext} [kΩ]
Watchdod Activation Threshold Hysteresis
I_Q,WDact,hy versus External Resistor R_WADJ,ext
800
T_j = 25° C
700
600
100
500
t_WI,tr
[ms]
10
400
I_Q,WDact,hy
[µA]
300
200
100
1
10
100
C_D [nF]
1000
0
1
10
100
1000
10000
R_{WADJ ,ext} [kΩ]
Data Sheet
27
Rev. 1.0, 2014-03-03