STSPIN840

STSPIN840/BKN is a STSPIN840 compact dual brushed DC motor driver that is able to drive two bi-directional brushed DC motors simultaneously. It integrates, in a very small 4 x 4mm QFN package, both the control logic and a fully protected low RDSon dual fullbridge power stage. It embeds two independent PWM current controllers (one for each full bridge) based on user settable values of reference voltage and OFF time. It can be forced in a low consumption state reducing the total current consumption down to less than 45µA. It integrates a complete set of protections for the power stages (non-dissipative overcurrent, thermal shutdown, short-circuit and undervoltage lockout) making it a bulletproof solution for the new wave of demanding industrial applications. Typical applications are 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.

• Operating voltage from 7 to 45V
• Maximum output current 1.5Arms
• RDSon HS + LS = 1ohm typical at VS = 21V, IOUT = 1A, VS = 36V, Tj = 25°C
• Current control with adjustable OFF time
• Current sensing based on external shunt resistors
• Non-dissipative overcurrent, short-circuit, undervoltage lockout< thermal shutdown protection
• Low standby current consumption
• Rise time is 120ns typical at VS = 21V, Tj = 25°C
• Vs supply standby current is 45µA typ at STBY = 0, VS = 36V, Tj = 25°C
• Output leakage current is 20µA max (OUTx = VS = 48V, VS = 36V, Tj = 25°C)