U6813B数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The function of microcontrollers in safety-critical applications (e.g., anti-lock systems) needs to be monitored permanently. Usually, this task is accomplished by an independent watchdog timer. The monolithic IC U6813B, designed in bipolar technology and qualified according to the needs of the automotive industry, includes such a watchdog timer and provides additional features for added value. With the help of integrated driver stages, it is easy to control safety-related functions of a relay and of an N-channel power MOSFET in high-side applications. In case of a microcontroller malfunction or supply-voltage anomalies, the U6813B provides positive and negative reset and enable output signals. This flexibility guarantees a broad range of applications. The U6813B is based on of Atmel’s fail-safe ICs U6808B and U6809B.

特性 Features

• Digital Self-supervising Watchdog with Hysteresis
• One 150-mA Output Driver for Relay
• One High-side Driver for N-channel Power FET
• Positive and Negative Enable Output
• Positive and Negative Reset Output
• Over/Under-voltage Detection
• Relay and Power FET Outputs Protected Against Standard Transients and 55-V Load Dump 

简介

U6813B属于集成电路（IC）的电源管理-专用。由制造生产的U6813B电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。