TLE4271 datasheet(9/23 Pages) INFINEON

Part #	TLE4271

Description	5-V Low-Drop Fixed Voltage Regulator

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Manufacturer	INFINEON [Infineon Technologies AG]

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TLE 4271-2

Data Sheet Rev. 2.4

9

2001-04-04

Watchdog

Upper watchdog

switching threshold

V

UDW

1.4

1.8

2.3

V

–

Lower watchdog

switching threshold

V

LDW

0.2

0.45

0.8

V

–

Discharge current

I

DWD

1.5

2.7

3.5

µA

V

D = 1 V

Charge current

I

DWC

814

25

µA

V

D = 1 V

Watchdog period

t

WD,P

40

55

80

ms

C

D = 100 nF

Watchdog trigger

time

t

WI,tr

30

45

66

ms

C

D = 100 nF

see diagram

Watchdog pulse

slew rate

V

WI

5

––

V/

µs from 20% to 80% V

Q

Characteristics (cont’d)

V

I = 13.5 V; – 40 °C ≤ Tj = ≤ 125 °C; VINH > VU,INH (unless otherwise specified)

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

max.

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