Datasheet

TLE 4278 G
Data Sheet 3 Rev. 1.4, 2007-02-19
Figure 1 Pin Configuration (top view)
Table 1 Pin Definitions and Functions
Pin Symbol Function
1WOWatchdog Output; the open collector output is connected to the
5 V output via an integrated resistor of 30 kΩ.
2WADJWatchdog Adjust; an external resistor to GND determines the
watchdog activating threshold.
3, 4, 5,
10, 11, 12
GND Ground
6DReset Delay; connect a capacitor to ground for delay time
adjustment.
7RADJReset Switching Threshold Adjust; for setting the switching
threshold, connect a voltage divider from output to ground. If this
input is connected to ground, the reset is triggered at the internal
threshold.
8WIWatchdog Input; rising edge-triggered input for monitoring a
microcontroller.
9Q5 V Output Voltage; block to ground with min. 10 µF capacitor,
ESR ≤ 5 Ω.
13 I Input Voltage; block to ground directly on the IC with ceramic
capacitor.
14 RO Reset Output; the open collector output is connected to the 5 V
output via an integrated resistor of 30 kΩ.
RO
GND
RADJ
D
GND
8
W
12
11
GND
GND
1
2
3
4
5
GND
6
7
14
13
WO
WADJ
9
10
AEP02113
GND
V
V
Ι
Ι
Q
PG-DSO-14-30