TLE4471 Datasheet, PDF (20/26 Pages) Infineon Technologies AG – Triple Voltage Regulator

TLE 4471
V_Ι
V_Q
V _{Q, rth}
V_D
V _RO
t _dr
t _rr
t
< t _rr
t
V_{DR, dt}
V_{DR, st}
t
Power-on-Reset
Thermal
Shutdown
Voltage Dip
at Input
Undervoltage Secondary Overload
Spike at Output
t
AED03045
Figure 5 Reset Timing
The reset output is an open collector output with a pullup-resistor of typical 4 kΩ to Q1.
An external pullup can be added with a resistor value of at least 20 kΩ.
In addition the reset switching threshold can be adjusted by an external voltage divider.
The feature is useful with microprocessors which guarantee safe operation down to
voltages below the internally set reset threshold of 4.65 typical.
Data Sheet Rev. 1.1
20
2001-09-06