Full bridge DC motor driver IC in THT package

Glyn, distributor of high-end microelectronics, offers Toshiba’s driver IC TB6568KQ for brush-type DC motors. The TB6568KQ is one of the smallest brush DC motor drivers (BDC) in a THT package (Through Hole Technology) suitable for four-quadrant operation. The operating voltage range is 10 to 45 V and the rated absolute maximum output current 3 A.

In its 7-pin Single-Inline-package HSIP7-P-2,54A, the full bridge BDC driver is based on a proprietary MOS process (Metal-Oxide Semiconductor) for short-circuit proof power transistors. To eliminate shoot-through currents, a dead time of 300 ns is generated. In addition, the IC offers overcurrent (ISD) and overvoltage (VSD) protection as well as undervoltage lockout circuitry (UVLO) and thermal shutdown circuitry (TSD)). It has been designed to support four-quadrant operation (Forward/Reverse/Short Brake/Stop).

At a maximum power supply voltage of 50 V the output current rates at 3 A (max), the ON-Resistanc R_DS(ON) is 55 mΩ (typ.). The integrated Pulse Width Modulation (PWM) allows for efficient control of the motor’s speed with high thermal efficiency.