TLE4471 datasheet(10/24 Pages) INFINEON

10 / 24 page

Data Sheet

Rev. 1.6, 2009-02-03

TLE 4471

Enable Function E1, E2, E3, EN

E1 On threshold

E1, on

3.54.1

4.5V

Q1 > 4.8 V; VQ2 > 4.8 V

E1 Off threshold

E1, off

1.5–

2.5V

–

E1 High input current

E1, on

–50

–

µA

E1 = 16 V

E1 Low input current

E1, off

-1

–

µA

E1 = 0 V

E2 On threshold

E2, on

1.31.7

2.0V

Q1 > 4.8 V; VQ2 > 4.8 V

E2 Off threshold

E2, off

0.81.2

1.7V

–

E2 resistance to GND

515

Ω

–

E3 On threshold

E3, on

3.5–

4.5V

Q1 > 4.8 V; VQ2 > 4.8 V

E3 Off threshold

E3, off

1.5–

2.5V

–

E3 High input current

E3, on

–50

–

µA

E3 = 16 V

E3 Low input current

E3, off

-1

–

µA

E3 = 0 V

EN On threshold

EN, on

1.01.7

2.3V

Q3 > 4.8 V; Q1 ON

EN Off threshold

EN, off

0.81.2

1.7V

Q3 < 0.1 V

Enable resistance to

GND

515

Ω

–

Reset Generator

Switching threshold

Q, rth

4.5

4.65

4.8

RADJ connected to

GND

Reset headroom

head

250

350

500

10 mA <

Q1 < 450 mA

Reset pull-up

2.4

–

Ω

–

Reset output low

voltage

R, low

–

0.4

1 V <

Q1 < VQ, rth

Reset output Low

voltage

R, low

––

0.4

Q1 = 1 V, IR = 50 µA

Reset output High

voltage

R, high

4.5

–

Reset adjust

threshold

RADJ

1.25

1.35

1.45

Q1 > 3.5 V

Table 4

Characteristics (cont’d)

I = 13.5 V; Tj = -40 °C < Tj < 125 °C

Parameter

Symbol

Limit Values

Unit Measuring Condition

Min.

Typ.

Max.

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