NCV7721中文资料Motor Driver, Double Half-Bridge with Direct Control数据手册ONSEMI规格书

描述 Description

The NCV7721 is a fully protected Dual Half-Bridge Driver designed specifically for
automotive and industrial motion control applications. The two half-bridge drivers have independent control. This allows for high side, low side, and H-Bridge control. H-Bridge control provides forward, reverse, brake, and high impedance states.
The drivers are controlled via logic level inputs.

特性 Features

• Ultra Low Quiescent Current in Sleep Mode
• Meets low current requirements in automotive modules to prevent battery drain.
• Power Supply Voltage Operation Down to 5 V
• Operation is maintained during automotive cranking.
• 2 High-Side and 2 Low-Side Drivers Connected as Half-Bridges
• Capable of running 1 motors
• Internal Free-Wheeling Diodes
• Protects the device from excessive voltages when driving inductive loads
• 0.5 A Continuous (1 A peak) Current
• Ideal for running automotive side-view mirrors
• RDSon = 0.8 ohms (typ)
• Keeps internal power discipation low
• Compliance with 5 V and 3.3 V systems
• Interfaces well with most automotive microprocessors
• Overvoltage and Undervoltage Lockout
• Prevents spurious drive at low voltage and device protection at high voltages
• Fault Reporting
• Pinpoints system errors
• Current Limit
• Device protection
• Internal fused leads in SOIC-14 Package
• Helps to keep die temperature within an acceptable temperature range
• ESD protection up to 6 kV
• Added ESD protection for pins which leave the automotive module

应用 Application

• Automotive
• Industrial Motion Control
• DC Motor Management

简介

NCV7721属于集成电路（IC）的全半桥驱动器。由制造生产的NCV7721全半桥驱动器器件属于电桥驱动器电源管理集成电路 (PMIC) 系列，包含两个或多个功率晶体管，以及在外部器件控制下将其用作开关所需的电路。这些晶体管通常在内部配置为成对串联连接（称为半桥），因而任意指定晶体管对之间的结点都可以连接至两个电源轨中的任一个。这类器件常用于将控制器件（如微控制器）提供的低电平信号转换为操作执行器（如步进电机或无刷电机）所需的较大功率信号。