TLE4470GS datasheet(4/22 Pages) SIEMENS

4 / 22 page

TLE 4470

Semiconductor Group

1998-11-01

RADJ

Reset switching threshold adjust not available in P-DSO-14-4 package. Reset

is always triggered at the internal threshold.

ADJ2

Main regulator adjust input is internally connected to

P-DSO-14-4

Pin No.

Symbol

Function

Reset delay; connect a capacitor

D to GND for delay time

adjustment

2DIS

Disable input main regulator; Q2 disabled with high signal

3, 4, 5

GND

Ground

6RQ

Reset output; the open collector output is connected to Q1

via an integrated 30 k

Ω resistor

7SQ

Sense output; the open collector output is connected to Q1

via an integrated 30 k

Ω resistor

8Q1

Stand-by regulator output voltage; block to GND with a

capacitor,

≥ 6 µF, ESR < 10 Ω at 10 kHz

9Q2

Main regulator output voltage; 5 V output tracking to Q1,

block to GND with a capacitor

≥ 10 µF, ESR < 10 Ω at

10 kHz

10, 11, 12

GND

Ground

Main and stand-by regulator input voltage; block to GND

directly at the IC with a ceramic capacitor

Sense comparator input

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