TOKYO -- Toshiba Corp. has combined bipolar, CMOS and double-diffused metal oxide semiconductor technologies into a new process for highly integrated motor driver ICs. The new high-voltage BiCD process will produce motor driver chips with one-third the power consumption, said Toshiba.
The first product to use Toshiba's BiCD process is a motor driver device, called TB62209F, which integrates a selectable mixed decay mode (SMDM) function to reproduce a waveform of an output electric current. This integrated function eliminates the need for an additional controller in motor drives and it allows the device to change performance based on the application's requirements, said the company.
Until now, Toshiba said, conventional ICs for micro-step motor drivers required a microcontroller to process data and achieve smooth control. Toshiba said the new IC contains a newly developed, micro-step decoder, which enables the device to smooth out motor control using waveforms from clock signals.
The BiCD process and integrated FET output results in low-power consumption (on resistance of 0.5 ohm) with a maximum voltage of 40 volts and an electric current of 1.5 amps, said the company.
The TB62209F is housed in a 36-pin heatsink small outline package (HSOP) with a 0.65-mm pitch between contacts. Samples of the driver IC will be available in May 2001, with volume production starting in June. Sample pricing is $3.70 each, said Toshiba.