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TLE4278G Datasheet(PDF) 8 Page - Siemens Semiconductor Group

Part # TLE4278G
Description  5-V Low-Drop Fixed Voltage Regulator
PDF  18 Pages
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Manufacturer  SIEMENS [Siemens Semiconductor Group]
Direct Link  http://www.siemens.com/
Logo SIEMENS - Siemens Semiconductor Group

TLE4278G Datasheet(HTML) 8 Page - Siemens Semiconductor Group

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TLE 4278 G
Semiconductor Group
8
1998-11-01
Upper timing threshold
V
DU
1.5
1.9
2.3
V
–
Lower reset timing
threshold
V
DRL
0.2
0.3
0.4
V
–
Delay time
t
d
12
20
28
ms
C
D = 47 nF
Reset reaction time
t
RR
0.4
1.0
2.0
µs
C
D = 47 nF
Watchdog
Activating threshold
V
WADJ
1.28 1.35
1.45
V
Voltage at WADJ
Current ratio
I
Q/IWADJ
650
720
800
–
I
Q ≤ 10 mA
Slew rate
V
WI
5–
–
V/
µs From 20% up to 80% V
Q
Watchdog low voltage
V
WOL
–0.2
0.4
V
R
ext = 10 kΩ to VQ
Watchdog high voltage
V
WOH
4.5
–
–
V
–
Watchdog pull-up
R
WO
20
30
45
k
Ω
Internal connected to
V
Q
Charge current
I
d
25
8
µA
V
D = 1.0 V
Discharge current
I
dis
0.6
1.3
2.0
µA
V
D = 1.0 V
Upper timing threshold
V
DU
1.5
1.9
2.3
V
–
Lower watchdog timing
threshold
V
DWL
0.5
0.7
0.9
V
–
Watchdog output period
T
WP
42
60
80
ms
C
d = 47 nF
Watchdog output low
time
t
WR
713
19
ms
V
Q > VRT
Watchdog trigger time
T
WT
35
47
61
ms
C
d = 47 nF
1) Measured when the output voltage V
Q has dropped 100 mV from the nominal value.
Electrical Characteristics (cont’d)
V
I = 13.5 V; – 40 °C ≤ Tj ≤ 125 °C (unless otherwise specified)
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ.
max.



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