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TLE4278G Datasheet(PDF) 13 Page - Infineon Technologies AG

Part # TLE4278G
Description  5-V Low Drop Fixed Voltage Regulator Output voltage tolerance ??짹2%
PDF  20 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

TLE4278G Datasheet(HTML) 13 Page - Infineon Technologies AG

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TLE 4278 G
Data Sheet
13
Rev. 1.4, 2007-02-19
Watchdog Activating
The calculation of the external resistor which adjusts the watchdog switch off threshold
can be done by Equation (4):
R
WADJ = VWADJ,th × (IQ/IWADJ)/IQ,act
(4)
Definitions:
•
V
WADJ,th = switch off threshold, typical 1.35 V
•
I
Q/IWADJ = current ratio, typical 720
•
I
Q,act = switch off load current
Figure 7
AES03072
Band-Gap-
Reference
GND
+
-
TLE 4278 G
Watchdog
active
HIGH
disabled
Watchdog
LOW
WADJ
R WADJ
Ι
Q



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