TLE4471 datasheet(11/24 Pages) INFINEON

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TLE 4471

Data Sheet

Rev. 1.6, 2009-02-03

Reset delay charging

current

DR, ch

µA

DR = 1 V

Reset delay

discharge current

DR, dis

120

160

DR = 1 V

Upper reset timing

threshold

DR, dt

0.91.8

2.7V

–

Lower timing

threshold

DR, st

0.25

0.4

0.65

–

Reset delay time

R = 100 nF

Reset reaction time

0.5

–

µs

R = 100 nF

Watchdog

Watchdog input

pull-down resistor

515

Ω

–

Watchdog delay

charging current

DW, ch

µA

DW = 1 V; VDR = 2.7 V

Watchdog upper

timing threshold

DW, dt

1.51.9

2.5V

–

Watchdog lower

timing threshold

DW, st

200

–

Watchdog trigger

pulse interval

DW = 100 nF

Reference Output REF2

Voltage divider ratio

REF2

49.5

50.5

% of

–

Output impedance

REF2

–

Ω

–

Output clamp voltage

–

4.5

–

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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