TLE 7279-2E V50 Infineon Technologies, TLE 7279-2E V50 Datasheet - Page 8

• Manufacturer Part Number: TLE 7279-2E V50
• Manufacturer: Infineon Technologies

Specifications of TLE 7279-2E V50

• Packages: PG-SSOP-14
• Regulator Type: single output
• Output Voltage: 5V
• Accuracy: 2.0 %
• Max. Output Current: 180mA
• Dropout Voltage: 250mV

5
5.1
5.1.1
For an output voltage level
V
in
of
microcontroller.
The TLE7279-2GV50 and TLE7279-2EV50 feature an integrated pull-up resistor on the reset output while the
TLE7279-2GV33 and TLE7279-2GV26 have an open drain output requiring an external pull-up resistor. When
connected to a voltage level of
But it’s also possible calculating its value by using the following formula, based on the reset sink current (Example:
external pull-up resistor connected to
R
At low output voltage levels
the reset output high ohmic.
Figure 4
Data Sheet
RT
extmin
Figure
V
, the signal at RO remains low for the power-up reset delay time
Q
power down (
=
V
V
V
V
4. The reset reaction time
V
V
V
ROH
ROL
RO
V
RTI
RT
Q
/
I
Block Description and Electrical Characteristics
Circuit Description
Power On Reset and Reset Output
Reset Function and Timing Diagram
I
RO
= (
V
V
ext
Q
-
t
<
RD
V
V
V
ROmin
V
RT
Q
Q
V
< 1 V the integrated pull-up resistor of the TLE7279-2GV50 is switched off setting
for
) /
1 V the reset output is hold low. When the level of
ext
I
t
RO
<
= 5 V, a recommended value for this external resistor is
t
>
RR
t
V
RR
= (5 V - 0.25 V) / 1.0 mA = 4.75 k
t
ext
avoids wrong triggering caused by short “glitches” on the
RR
) a logic low signal is generated at the pin RO to reset an external
= 5 V):
8
Block Description and Electrical Characteristics
t
t
RR
RD
. The reset function and timing is illustrated
V
Q
reaches the reset threshold
AET03526NEW.VSD
Rev. 1.2, 2008-05-08
5.6 k .
t
RR
V
Q
TLE7279-2
-line. In case
t
t
t