步進馬達驅動器

東芝原創的ADMD技術比傳統的混合衰減模式更能緊密地跟蹤輸入電流，從而實現了高轉速條件下的高效馬達控制。

東芝原創的ACDS技術實現了高精度恒定電流的馬達驅動，且無需使用外部電流靈敏電阻器。
零件數量減少也有助於縮小PCB板尺寸和BOM成本。

AGC is Toshiba’s unique stepping motor technology to automatically optimize the drive current in real time according to load torques. It helps reduce unnecessary current and drastically cut power consumption and heat generation.

It has built-in circuits for detecting abnormalities such as low-voltage (UVLO), overcurrent (ISD), and overheating (TSD).

This makes it possible to build a highly reliable system.

(Note: The built-in error detection function differs depending on the product.)

Whereas the full-step drive turns the currents of the two windings on and off and rotates them by a fixed angle, the micro-step drive can rotate them at a step angle finer than the basic step angle by changing the current ratio of the two windings in a stepwise manner.

The range is 1/4, 1/8, 1/16, 1/32, and 1/64 (steps).

Fabricated using a state-of-the-art high-voltage analog process (130-nm BiCD process), Toshiba's stepping motor drivers combine low-voltage control circuitry with high-voltage DMOS output drivers on the same monolithic structure. Consequently, high-voltage motor drivers rated at 84 V can be housed in the small WQFN48 (7 mm × 7 mm) package, which helps reduce the solution size.