參數(shù)資料
型號: TLE4299G
廠商: INFINEON TECHNOLOGIES AG
英文描述: 5-V Low-Drop Fixed Voltage Regulator
中文描述: 5 - V低拖放固定穩(wěn)壓器
文件頁數(shù): 15/22頁
文件大?。?/td> 356K
代理商: TLE4299G
TLE 4299
Data Sheet Rev. 1.0
15
2002-01-17
Figure 8
Reset Timing Diagram
The reset output is an open collector output with a pull-up resistor of typical 20 k to Q.
An external pull-up can be added with a resistor value of at least 5.6 k .
In addition the reset switching threshold can be adjusted by an external voltage divider.
The feature is useful for microprocessors which guarantee safe operation down to
voltages below the internally set reset threshold of 4.65 V typical.
If the internal used reset threshold of typical 4.65 V is used, the pin RADJ has to be
connected to GND.
If a lower reset threshold is required by the system, a voltage divider defines the reset
threshold
V
Rth
between 3.5 V and 4.60 V:
V
Rth
=
V
RADJ TH
(
R
ADJ1
+
R
ADJ2
)
R
ADJ2
V
RADJ TH
is typical 1.36 V.
[3]
AED03107
Thermal
Shutdown
t
d
Power-on-Reset
Voltage Dip
at Input
Secondary
Spike
Overload
at Output
t
V
LD
V
RO, SAT
RT
V
t
RR
<
RR
t
Undervoltage
V
V
RO
D
V
t
t
t
t
Q
V
V
I
V
UD
d
d
I
C
D
D
=
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