3
Pin Configuration
3.1
Pin Assignment
TLE4263-2ES
Pin Configuration
,
,1+
52
*1'
4
:
5$'-
'
Figure 2 Pin Configuration
3.2
Pin Definitions and Functions
Pin Symbol
1
I
2
INH
3
RO
4
GND
5
D
6
RADJ
7
W
8
Q
PAD –
Function
Input
for compensating line influences, a capacitor to GND close to the IC terminals is
recommended
Inhibit
enables/disables the device;
connect to I if the this function is not needed
Reset Output
open-collector output connected to the output via an internal 30kΩ pull-up resistor;
leave open if the this function is not needed
Ground
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
Reset Threshold Adjust
connect an external voltage divider to adjust the reset switching threshold;
connect to GND for using internal threshold
Watchdog
rising edge triggered input for monitoring a microcontroller;
connect to GND if this function is not needed
Output
block to ground with a capacitor close to the IC terminals with a capacitance value
C ≥ 22 µF, and an ESR ≤ 3 Ω
Exposed Pad
attach the exposed pad on package bottom to the heatsink area on circuit board;
connect to GND
Data Sheet
5
Rev. 1.0, 2008-04-21