TLE4278G Datasheet, PDF (3/18 Pages) Siemens Semiconductor Group – 5-V Low-Drop Fixed Voltage Regulator

TLE 4278 G
Pin Configuration
(top view)
P-DSO-14-4
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 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 determine 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; positive-edge-triggered input for monitoring a
microcontroller.
9
V_Q
5-V output voltage; block to ground with min. 10 µF capacitor,
ESR < 10 Ω at 10 kHz.
13
V_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.
Semiconductor Group
3
1998-11-01