TB6641FG(O,8,EL) Toshiba

TB6641FG/FTG TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic TB6641FG/FTG Full-Bridge DC Motor Driver IC The TB6641FG/FTG is a full-bridge DC motor driver with MOS output transistors. The low ON-resistance MOS process and PWM control enables driving DC motors with high thermal efficiency. Four operating modes are selectable via IN1 and IN2: clockwise (CW), counterclockwise (CCW), Short Brake and Stop. Features Power supply voltage : 50 V (max) TB6641FG: Weight: 0.5 g (typ.) Output current : 4.5 A (max) Direct PWM control PWM constant-current control CW/CCW/Short Brake/Stop modes Overcurrent shutdown circuit (ISD) Overcurrent detection time control Overvoltage shutdown circuit (VSD) Thermal shutdown circuit (TSD) Undervoltage lockout circuit (UVLO) Dead time for preventing shoot-through current P-VQFN32-0505-0.50-002 TB6641FTG: Weight: 0.07 g (typ.) 1 2014-12-8 TB6641FG/FTG Block Diagram (application circuit example) The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass production design stage. Toshiba does not grant any license to any industrial property rights by providing these examples of application circuits. VREG VM 5 V regulator UVLO ALERT VSD TSD ISD detection ISD detection OUT1 IN1 Motor Control Predriver IN2 OUT2 ISD detection ISD detection PWM ISD OSC Level Time 0.4 V (typ.) 1/10 VREF RSGND OSC SGND TISD 2 2014-12-8