TLE 4263G Infineon Technologies, TLE 4263G Datasheet - Page 11

• Manufacturer Part Number: TLE 4263G
• Manufacturer: Infineon Technologies

Specifications of TLE 4263G

• Packages: PG-DSO-20
• Regulator Type: single output
• Output Voltage: 5V
• Accuracy: 2.0 %
• Max. Output Current: 150mA
• Dropout Voltage: 350mV

Reset Switching Threshold
The present default value is typ. 4.65 V. When using the TLE 4263 the reset threshold
can be set to 3.5 V <
The calculation can be easily done since the reset adjust input current can be neglected.
If this feature is not needed, the pin has to be connected to GND.
V
Definitions:
•
•
Watchdog Timing
The frequency of the watchdog pulses has to be higher than the minimum pulse
sequence which is set by the external reset delay capacitor
according to the formula given in
Figure 6
Data Sheet
Q,rt
V
V
= (1 +
Q,rt
RADJ,th
= reset threshold
V
V
DU
DWL
R
= comparator reference voltage, typical 1.35 V
V
V
V
V
V
T
W
Q
D
RO
1
WI, tr
/
R
Timing of the Watchdog Function Reset
=
2
)
V (
DU
V
-
D, wd
V
V
RADJ,th
DWL
Q,rt
)
< 4.6 V by connecting an external voltage divider to pin RADJ.
C
D
Figure
6.
11
T
t
WD, p
WD, L
T
C
WI, tr
D
. Calculation can be done
Rev. 2.8, 2007-03-20
AED03099_4263
TLE 4263
t
t
t
t
t
(2)