描述 Description

An input voltage up to 45 V is regulated to an output voltage of 5.0 V. The component is able to drive loads up to 150 mA. It is short-circuit protected by the implemented current limitation and has an integrated overtemperature shutdown. A reset signal is generated for an output voltage VQ,rt of typically 4.65 V.This threshold can be decreased by an external resistor divider. The power-on reset delay time can be programmed by the external delay capacitor. The additional sense comparator provides an early warning function: Any voltage (e.g. the input voltage) can be monitored, an undervoltage condition is indicated by setting the comparator’s output to low. TLE42994E, PG-SSOP-14 exposed pad package, has an Enable function permitting enabling/disabling the regulator. In case the regulator is disabled it consumes less current than 1 μA.

特性 Features

? Output Voltage 5 V ± 2%
? Output Current up to 150 mA
? Extreme Low Current Consumption In ON State
? Enable Function: Below 1 μA Current Consumption In OFF State
? Early Warning
? Power-on and Under voltage Reset with Programmable Delay Time
? Reset Low Down to V Q = 1V
? Adjustable Reset Threshold
? Very Low Dropout Voltage
? Output Current Limitation
? Reverse Polarity Protection
? Over temperature Protection
? Suitable for Use in Automotive Electronics
? Wide Temperature Range from -40 °C up to 150 °C
? Input Voltage Range from -42 V to 45 V
? Green Product (RoHS compliant)
? AEC Qualified

優(yōu)勢:
? Robust Protection Features
? Wide Input Operation and Temperature Range

應(yīng)用 Application

? Automotive General

簡介

TLE42994E屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TLE42994E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(gè)最小量，并且在工作時(shí)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。