TDA8139集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

TDA8139屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的TDA8139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。

Features

■ Input voltage range: 7 V to 18 V

■ Output currents up to 750 mA

■ Fixed Precision output 1 voltage: 5.1 V ±2

■ Adjustable output 2 voltage: 2.8 to 16 V

■ Output 1 with reset function

■ Output 2 with disable function by TTL input

■ Short-circuit protection at both outputs

■ Thermal protection

■ Low dropout voltage

Description

The TDA8139 and the TDA8139/D are monolithic

dual positive voltage regulators designed to

provide a fixed precision output voltage of 5.1 V

and an adjustable voltage between 2.8 and 16 V

for currents up to 750 mA.

An internal reset circuit generates a reset pulse

when the voltage of OUTPUT1 drops below the

regulated voltage value.