TLS820F0 datasheet(30/41 Pages) INFINEON

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Data Sheet

Rev. 1.1, 2015-07-27

TLS820F0

Block Description and Electrical Characteristics

Watchdog Input

Low Signal Valid

WI,low

––0.8

2) –

P_5.9.16

Watchdog Input

High Signal Valid

WI,high

2.0

–

2) –

P_5.9.17

Watchdog Input

High Signal Pulse Length

WI,ph

1––

µs

2) V

WI ≥ VWI,high

P_5.9.19

Watchdog Input

Low Signal Pulse Length

WI,pl

1––

µs

2) V

WI ≤ VWI,low

P_5.9.20

Watchdog Input

Signal Slew Rate

WI/dt

1––

V/µs 2)

WI,low <VWI < VWI,high

P_5.9.21

High Level Input Current

WI,H

––3.5

µA

WI =3.3 V

P_5.9.22

Watchdog Input internal pull-down

resistor

0.9

1.5

2.6

MΩ

–

P_5.9.23

Watchdog Disable Threshold

WI Signal Value

WI,dis

1.15 –

1.40

for

Q,nom =5V:

I > 5.44 V;

signal must be applied for

W,filter,max to deactivate

and activate the watchdog

P_5.9.31

Watchdog Disable Threshold

WI Signal Value

WI,dis

1.15 –

1.40

for

Q,nom =3.3 V:

I >4.6 V;

signal must be applied for

W,filter,max to deactivate

and activate the watchdog

P_5.9.24

Watchdog Minimum Filter Time

state transition by WI

WI,filter,min

100

–

µs

3) – see Page 33

P_5.9.25

Watchdog Maximum Filter Time

state transition by WI

WI,filter,max –

–

500

µs

3) – see Page 33

P_5.9.26

Watchdog Delay Input DT2 (DT1 is defined in chapter Reset Delay Input DT1)

Delay Input DT2

Low Signal Valid

DT2,L

––0.8

–

P_5.9.27

Delay Input DT2

High Signal Valid

DT2,H

2.0

–

P_5.9.28

Delay Input DT2

Signal Slew Rate

DT2/dt

1––

V/µs

DTx,L <VDTx < VDTx,H

P_5.9.38

High Level Input Current DT2

DT2,H

––3.5

µA

DTx =3.3 V

P_5.9.30

Delay Input DT2 internal pull-down

resistor

DT2

0.9

1.5

2.6

MΩ

–

P_5.9.32

Watchdog setup and hold time

(DT1, DT2)

setup,hold,

150

–

µs

3) Within the setup and hold

time phase, a DTx

transition will not be

recognized

P_5.9.33

Watchdog Output WO

Table 10

Electrical Characteristics Watchdog (cont’d)

j = -40 °C to +150 °C, VI = 13.5 V, all voltages with respect to ground (unless otherwise specified)

Typical values are given at

j = 25 °C

Parameter

Symbol

Values

Unit Note / Test Condition

Number

Min. Typ. Max.

TLS820F0 Datasheet(PDF) 30 Page - Infineon Technologies AG

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