VN770P集成電路（IC）的全半橋驅(qū)動(dòng)器規(guī)格書(shū)PDF中文資料

VN770P屬于集成電路（IC）的全半橋驅(qū)動(dòng)器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的VN770P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(kāi)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(wú)刷電機(jī)）所需的較大功率信號(hào)。

DESCRIPTION

The VN770P is a device formed by three monolithic chips housed in a standard SO28 package: a double high side and two low side switches. Both the double high side and low side switches are made using STMicroelectronics VIPower technology. This device is suitable to drive a DC motor in a bridge configuration as well as to be used as a quad switch for any low voltage application. The dual high side switches have built-in thermal shut-down to protect the chip from over temperature and short circuit, status output to provide indication for open load in off and on state, overtemperature conditions and stuck-on to VCC. The low side switches are two OMNIFET types (fully autoprotected Power MOSFET in VIPower? technology). They have built-in thermal shut-down, linear current limitation and overvoltage clamping. Fault feedback for thermal intervention can be detected by

monitoring the voltage at the input pin.

■ IDEAL AS A LOW VOLTAGE BRIDGE

■ LINEAR CURRENT LIMITATION

■ VERY LOW STAND-BY POWER DISSIPATION

■ SHORT CIRCUIT PROTECTED

■ STATUS FLAG DIAGNOSTICS

■ OPEN DRAIN DIAGNOSTICS OUTPUT

■ INTEGRATED CLAMPING CIRCUITS

■ UNDER-VOLTAGE PROTECTION

■ ESD PROTECTION