TLE42694_14 Datasheet, PDF (23/33 Pages) Infineon Technologies AG – Low Dropout Fixed Voltage Regulator

TLE42694
Block Description and Electrical Characteristics
5.4
Early Warning Function
The additional sense comparator provides an early warning function: Any voltage (e.g. the input voltage) can be
monitored, an undervoltage condition is indicated by setting the comparator’s output to low.
Sense
Input
Voltage
V_{SI, High}
V_{SI, Low}
t
Sense
Output
High
Low
t
AED03049
Figure 8 Sense Timing Diagram
Table 10 Electrical Characteristics Early Warning Function
V_I = 13.5 V, -40 °C ≤ T_j ≤ 150 °C, all voltages with respect to ground, positive current flowing into pin (unless
otherwise specified)
Parameter
Symbol
Min.
Values
Unit Note /
Typ. Max.
Test Condition
Number
Sense Comparator Input
Sense Threshold High
Sense Threshold Low
Sense Switching Hysteresis
Sense Input Current
V_SI,high
V_SI,low
V_SI,hy
I_SI
1.24
1.16
20
-1
1.31
1.22
90
-0.1
1.38
1.28
160
1
V–
V–
mV –
µA –
P_5.4.1
P_5.4.2
P_5.4.3
P_5.4.4
Data Sheet
23
Rev. 1.3, 2014-07-03