tle42994 Infineon Technologies Corporation, tle42994 Datasheet - Page 24

• Manufacturer Part Number: tle42994
• Description: Low Dropout Fixed Voltage Regulator
• Manufacturer: Infineon Technologies Corporation

5.9
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.
Figure 9
Electrical Characteristics Early Warning Function
V
(unless otherwise specified)
Pos.
Sense Comparator Input
5.9.1
5.9.2
5.9.3
5.9.4
Data Sheet
I
= 13.5 V, -40 °C ≤
Parameter
Sense Threshold High
Sense Threshold Low
Sense Switching Hysteresis
Sense Input Current
Sense
Input
Voltage
Sense
Output
V
V
Early Warning Function
Sense Timing Diagram
SI, High
SI, Low
High
Low
T
j
≤ 150 °C, all voltages with respect to ground, positive current flowing into pin
Symbol
V
V
V
I
SI
SI,high
SI,low
SI,hy
Min.
1.34
1.26
50
-1
24
Limit Values
Block Description and Electrical Characteristics
Typ.
1.45
1.36
90
-0.1
Max.
1.54
1.44
130
1
Unit
V
V
mV
µA
Conditions
–
–
V
–
SI,hy
Rev. 1.0, 2008-12-04
=
AED03049
V
SI,high
TLE42994
t
t
-
V
SI,low