NCV7721中文資料Motor Driver, Double Half-Bridge with Direct Control數(shù)據(jù)手冊(cè)O(shè)NSEMI規(guī)格書

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

應(yīng)用 Application

? Automotive
? Industrial Motion Control
? DC Motor Management

簡(jiǎn)介

NCV7721屬于集成電路（IC）的全半橋驅(qū)動(dòng)器。由ONSEMI制造生產(chǎn)的NCV7721全半橋驅(qū)動(dòng)器器件屬于電橋驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，包含兩個(gè)或多個(gè)功率晶體管，以及在外部器件控制下將其用作開關(guān)所需的電路。這些晶體管通常在內(nèi)部配置為成對(duì)串聯(lián)連接（稱為半橋），因而任意指定晶體管對(duì)之間的結(jié)點(diǎn)都可以連接至兩個(gè)電源軌中的任一個(gè)。這類器件常用于將控制器件（如微控制器）提供的低電平信號(hào)轉(zhuǎn)換為操作執(zhí)行器（如步進(jìn)電機(jī)或無刷電機(jī)）所需的較大功率信號(hào)。