描述 Description

The TLE 4287 G is a monolithic integrated 5 V voltage regulator in PG-DSO-14 package. It supplies an output current I Q > 250 mA. The IC is short circuit proof and incorporates temperature protection which turns off the device at over temperature. The input voltage VI is regulated in the range of 7.5 V < V I< 40 V to V Q,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.

特性 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
·Over temperature protection
·Reverse polarity protection
·Short-circuit proof
·Very wide temperature range
·Very small output capacitor
·Green Product (RoHS compliant)
·AEC Qualified

應(yīng)用 Application

·Automotive general

簡介

TLE4287G屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TLE4287G穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。