TLE9255WLC datasheet(76/100 Pages) INFINEON

76 / 100 page

Data Sheet

Rev. 1.02 2018-02-02

TLE9255W

Electrical Characteristics

10.2.2

Undervoltage Detection

Table 10

Undervoltage Detection

4.75 V < VCC < 5.25 V; 3.0 V < VIO < 5.5 V; 5.5V < VBAT < 40V; RL =60 Ω; -40 °C < TJ < 150 °C;

all voltages with respect to ground, positive current flowing into pin (unless otherwise specified)

Parameter

Symbol

Values

Unit

Note or

Test Condition

Number

Min.

Typ.

Max.

Undervoltage Detection VBAT

Undervoltage detection

threshold

VBAT_UV

4.2

5.0

5.5

1) The design of the TLE9255W guarantees that the VBat powerdown threshold is below the VBat undervoltage threshold

P_10.2.18

Power down threshold

VBAT_POD

34.0

4.4

1),

falling edge,

VCC = 0 V;

P_10.2.20

Undervoltage glitch filter

tVBAT_filter

–

400

µs

(see Figure 24)

P_10.2.22

Undervoltage Detection VCC

Undervoltage detection

threshold

VCC_UV

4.5

4.65

4.75

–

P_10.2.23

Power down threshold

VCC_POD

2.5

4.0

falling edge,

VBAT = 0 V;

P_10.2.25

Undervoltage glitch filter

tVCC_filter

–

µs

(see Figure 26)

P_10.2.27

Transmitter recovery time

tVCC_recovery

µs

(see Figure 26)

P_10.2.36

Response time VCC for

long-term undervoltage

detection

tVCC_UV_T

0.6 x

VCC_UV_T

–1.4 x

VCC_UV_

AdjustablebySPI

bit VCC_UV_T

(see Figure 28

and Figure 29)

P_10.2.28

Undervoltage Detection VIO

Undervoltage detection

threshold

VIO_UV

2.4

2.6

3.0

–

P_10.2.29

Undervoltage glitch filter

tVIO_filter

–

µs

(see Figure 30)

P_10.2.31

Transmitter recovery time

tVIO_recovery

µs

(see Figure 30)

P_10.2.37

Response time VIO for

long-term undervoltage

detection

tVIO_UV_T

0.6 x

VIO_UV_T

–1.4 x

VIO_UV_T

AdjustablebySPI

field VIO_UV_T

(see Figure 32

and Figure 33)

P_10.2.32

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