Data Sheet

26

Rev. 1.2, 2014-07-03

TLE42994

Block Description and Electrical Characteristics

5.8

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.

Figure 9

Sense Timing Diagram

Table 8

Electrical Characteristics Early Warning Function

V

otherwise specified)

Parameter

Symbol

Values

Unit

Note / Test Condition

Number

Min.

Typ.

Max.

Sense Comparator Input

Sense Threshold High

V

SI,high

1.34

1.45

1.54

V

–

P_5.9.1

Sense Threshold Low

V

SI,low

1.26

1.36

1.44

V

–

P_5.9.2

Sense Switching Hysteresis

V

SI,hy

50

90

130

mV

V

P_5.9.3

Sense Input Current

I

SI

-1

-0.1

1

µA

–

P_5.9.4

AED03049

t

Sense

t

SI, High

V

SI, Low

V

Input

Voltage

High

Low

Output

Sense