BTN7971B数据手册集成电路（IC）的电机驱动器控制器规格书PDF

描述 Description

The BTN7971B is a integrated high current half bridge for motor drive applications. It is part of the NovalithIC™ family containing one p- channel highside MOSFET and one n- channel lowside MOSFET with an integrated driver IC in one package. Due to the p- channel highside switch the need for a charge pump is eliminated thus minimizing EMI. Interfacing to a microcontroller is made easy by the integrated driver IC which features logic level inputs, diagnosis with current sense, slew rate adjustment, dead time generation and protection against overtemperature, overvoltage, undervoltage, overcurrent and short circuit. The BTN7971B provides a cost optimized solution for protected high current PWM motor drives with very low board space consumption.

特性 Features

·Path resistance of max. 30.5 mΩ @ 150 °C (typ. 16 mΩ @ 25 °C) High Side: max. 12.8 mΩ @ 150 °C (typ. 7 mΩ @ 25 °C) Low Side: max. 17.7 mΩ @ 150 °C (typ. 9 mΩ @ 25 °C)
·Low quiescent current of typ. 7 μA @ 25 °C
·PWM capability of up to 25 kHz combined with active freewheeling
·Enhanced switching speed for reduced switching losses
·Switched mode current limitation for reduced power dissipation in overcurrent
·Current limitation level of 50 A min. / 70 A typ. (low side)
·Status flag diagnosis with current sense capability
·Overtemperature shut down with latch behavior
·Overvoltage lock out
·Undervoltage shut down
·Driver circuit with logic level inputs
·Adjustable slew rates for optimized EMI
·Green Product (RoHS compliant)
·AEC Qualified

应用 Application

·Motor-Drive

简介

BTN7971B属于集成电路（IC）的电机驱动器控制器。由制造生产的BTN7971B电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。