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TLE4287G

Infineon Technologies
Part Number TLE4287G
Manufacturer Infineon Technologies
Description 5-V Voltage Regulator
Published Jun 3, 2015
Detailed Description TLE4287G 5-V Voltage Regulator Data Sheet Rev. 1.41, 2012-01-30 Automotive Power 5-V Voltage Regulator TLE4287G Featu...
Datasheet PDF File TLE4287G PDF File

TLE4287G
TLE4287G

Overview
TLE4287G 5-V Voltage Regulator Data Sheet Rev.
1.
41, 2012-01-30 Automotive Power 5-V Voltage Regulator TLE4287G Features • Output voltage tolerance ≤ ±2% • Very low standby current consumption • Input voltage up to 42 V • Reset function down to 1 V output voltage • Adjustable reset time • On/Off logic • Overtemperature protection • Reverse polarity protection • Short-circuit proof • Very wide temperature range • Very small output capacitor • Green Product (RoHS compliant) • AEC Qualified Functional Description The TLE4287G is a monolithic integrated 5 V voltage regulator in PG-DSO-14 package.
It supplies an output current IQ > 250 mA.
The IC is short circuit proof and incorporates temperature protection which turns off the device at overtemperature.
The input voltage VI is regulated in the range of 7.
5 V < VI < 40 V to VQ,nom = 5 V.
Therefore a reference voltage, which is kept highly accurate by resistance adjustment, is compared via a control amplifier to a voltage that is proportional to the output voltage.
The control amplifier drives the base of the series transistor by a buffer.
A comparator in the reset-generator block compares a reference voltage that is independent of the input voltage to the scaled-down output voltage.
In the case of an output voltage VQ < 4.
5 V the reset delay capacitor is discharged and a reset signal is generated by setting the reset output LOW.
The reset delay time can be set by choosing the external capacitor over a wide range.
When the output voltage rises above VQ ≥ 4.
5 V the reset delay capacitor is charged again.
As soon as the delay capacitor voltage reaches the upper switching threshold the reset output pin is set HIGH again.
Type TLE4287G Data Sheet Package PG-DSO-14 2 Rev.
1.
41, 2012-01-30 TLE4287G The device has two logic inputs, EN and H.
It is turned ON by a voltage > 4 V at EN, for example by the ignition and remains active in case H is set LOW, even if the voltage at EN goes LOW.
This makes it possible to implement...


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