STSPIN840 Description

The STSPIN840 is a compact brushed DC motor driver able to drive two bi-directional brushed DC motors simultaneously. It integrates, in a very small 4 x 4 mm QFN package, both the control logic and a fully protected low RDSon dual full-bridge power stage. Thanks to a dedicated PARALLEL input pin the parallel mode function can be enabled, transforming the device into an equivalent and more powerful single full-bridge able to deliver up to 3Arms current at an equivalent HS + LS RDSon of 500 mΩ.

The STSPIN840 embeds two independent PWM current controllers (one for each full bridge) based on user-settable values of the reference voltage and OFF time.

STSPIN840 Features

• Operating voltage from 7 to 45 V

• Maximum output current 1.5 Arms

• RDSon HS + LS = 1 Ω typ.

• Current control with adjustable OFF time

• Current sensing is based on external shunt resistors

STSPIN840 Applications

• Industrial automation and service robots

• Medical and health care

• ATM and money handling machines

• Stage lighting

• Thermal printers

• Textile and sewing machines

• Vending machines

• Office and home automation