Data Sheet

5

Rev. 1.0, 2008-04-21

TLE4263-2ES

Pin Configuration

3

Pin Configuration

3.1

Pin Assignment

Figure 2

Pin Configuration

3.2

Pin Definitions and Functions

Pin

Symbol

Function

1I

Input

for compensating line influences, a capacitor to GND close to the IC terminals is

recommended

2INH

Inhibit

enables/disables the device;

connect to I if the this function is not needed

3RO

Reset Output

open-collector output connected to the output via an internal 30k

Ω pull-up resistor;

leave open if the this function is not needed

4GND

Ground

5D

Reset Delay Timing

connect a ceramic capacitor to GND for adjusting the reset delay time / watchdog

trigger time;

leave open if this function is not needed

6RADJ

Reset Threshold Adjust

connect an external voltage divider to adjust the reset switching threshold;

connect to GND for using internal threshold

7W

Watchdog

rising edge triggered input for monitoring a microcontroller;

connect to GND if this function is not needed

8Q

Output

block to ground with a capacitor close to the IC terminals with a capacitance value

C

≥ 22 µF, and an ESR ≤ 3 Ω

PAD

–

Exposed Pad

attach the exposed pad on package bottom to the heatsink area on circuit board;

connect to GND