TLE4271-2 datasheet(8/23 Pages) INFINEON

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Data Sheet

Rev. 2.7, 2007-06-25

TLE 4271-2

Reset Generator

Switching threshold

4.5

4.65

4.8

–

Reset high voltage

ROH

4.5

––V

–

Saturation voltage

RO,SAT

–60

–

intern = 30 kΩ;

1.0 V

≤ V

Q ≤ 4.5 V

Saturation voltage

RO,SAT

–

200

400

R = 3 mA

2);

Q = 4.4 V

Reset pull-up

Ω

internally connected

to Q

Lower reset timing

threshold

0.2

0.45

0.8

Q < VRT

Charge current

814

µA

D = 1.0 V

Upper timing

threshold

1.4

1.8

2.3

–

Delay time

1318ms

D = 100 nF

Reset reaction time

––3

µs

D = 100 nF

Overvoltage Protection

Turn-off voltage

I, ov

–

Inhibit

Turn-on voltage

U,INH

1.0

2.0

3.5

Q = high (> 4.5 V)

Turn-off voltage

L,INH

0.8

1.3

3.3

Q = low (< 0.8 V)

Inhibit current

INH

812

µA

INH = 5 V

Watchdog

Upper watchdog

switching threshold

UDW

1.4

1.8

2.3

–

Lower watchdog

switching threshold

LDW

0.2

0.45

0.8

–

Discharge current

DWD

1.5

2.7

3.5

µA

D = 1 V

Charge current

DWC

814

µA

D = 1 V

Watchdog period

WD,P

D = 100 nF

Table 4

Characteristics (cont’d)

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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