TLE42994EV33数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The TLE42994V33 is a monolithic integrated low dropout voltage regulator, especially designed for automotive applications that need to be in ON state during the car's engine is turned off. An input voltage up to 45 V is regulated to an output voltage of 3.3 V. The component is able to download up to 150 mA. It Is short-circuit, protected by the implemented current limitation and has an integrated over temperature shutdown. A reset signal is generated for an output voltage V Q,RT of typically 3.1 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 under voltage condition is indicated by setting the comparator's output to low. Additionally, an Enable function permitting enabling/disabling the regulator is also included. In case the regulator is disabled it consumes less current than 1 uA.

特性 Features

• Output Voltage 3.3 V + 2%
• Output Current up to 150 mA
• Extreme Low Current Consumption In ON State
• Enable Function: Below 1 uA Current Consumption In OFF State
• Early Warning
• Power-on and Under voltage Reset with Programmable Delay Time
• Reset Low Down to V Q = 1 V
• 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 -40 V to 45 V
• Green Product (RoHS compliant)
• AEC Qualified

优势:
• Robust Protection Features
• Wide Input Operation and Temperature Range

应用 Application

• Automotive General

简介

TLE42994EV33属于集成电路（IC）的线性+开关稳压器。由制造生产的TLE42994EV33稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。