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