TLE4278G Datasheet, PDF (3/19 Pages) Siemens Semiconductor Group – 5-V Low-Drop Fixed Voltage Regulator

TLE 4278 G
P-DSO-14-8
WO
WADJ
GND
GND
GND
D
RADJ
1
14 RO
2
13 V_Ι
3
12 GND
4
11 GND
5
10 GND
6
9 V_Q
7
8 WΙ
AEP02113
Figure 1 Pin Configuration (top view)
Table 1
Pin Definitions and Functions
Pin
Symbol Function
1
WO
Watchdog Output; the open collector output is connected to the
5 V output via an integrated resistor of 30 kΩ.
2
WADJ Watchdog Adjust; an external resistor to GND determines the
watchdog activating threshold.
3, 4, 5, GND
10, 11, 12
Ground
6
D
Reset Delay; connect a capacitor to ground for delay time
adjustment.
7
RADJ Reset 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.
8
WI
Watchdog Input; rising edge-triggered input for monitoring a
microcontroller.
9
Q
5 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.
Data Sheet
3
Rev. 1.3, 2005-04-29