tle4473 Infineon Technologies Corporation, tle4473 Datasheet - Page 2
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tle4473
Manufacturer Part Number
tle4473
Description
Dual Low Drop Voltage Regulator
Manufacturer
Infineon Technologies Corporation
Datasheet
1.TLE4473.pdf
(15 pages)
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The low drop regulator features a reset with adjustable power on delay for each of the
outputs. In addition the output for the microcontroller supply comes up with a watchdog
in order to supervise a microcontroller.
Figure 1
Data Sheet
Ignition
V
µC
Bat
7
9
8
I
INH2
INH1
Block Diagram with Typical External Components
Reference
Bandgap
Inhibit
?1
Inhibit
Overtemperature
Shutdown
TLE 4473 GV53 / TLE 4473 GV52
6, 12
GND
Current and
Overcurrent
Current and
Overcurrent
Saturation
Protection
Saturation
Protection
Control,
Control,
2
Generator
Generator
Watchdog
Reset
Reset
AEB03507.VSD
RO2
RO1
Q2
Q1
D2
D1
WI
10
11
4
2
5
3
1
Rev. 1.0, 2004-07-14
TLE 4473 GV53
TLE 4473 GV52
100 nF
100 nF
10
µF
22 µF
or
10 µF
Watchdog
(from µC)
4.7 k
4.7 k
e. g. µC I/O
or Sensor
Supply
µC Core
Supply
µC
Reset
Ω
Ω