Contact us

在新視窗打開 在新視窗打開

步進馬達驅動器

東芝的步進馬達驅動器產品陣容採用BiCD製程,可實現高精度與大電流驅動。產品陣容涵蓋了可支援雙極或單極結構等多樣化產品。

產品陣容

Product Lines: Stepping Motor Drivers

(*1) TB67S105 & TB67S145 不支援 micro-stepping

Stepping Motor Drivers

步進馬達驅動器 產品陣容

產品特性

廣泛的產品陣容

Extensive product lineup

高階技術提供客戶解決方案需求及問題

Solutions for customers' needs and issues based on leading-edge technologies

東芝的原創技術

1. 先進動態混合衰減(ADMD)技術

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。

Conventional Mixed Decay:Missed step at high rpm / ADMD Technology:Precise microstep control even at high rpm

Products incorporating the ADMD technology:
TB67S101A TB67S102A TB67S103A TB67S109A TB67S261 TB67S265 TB67S269 TB67S508

2. 先進電流檢測系統(ACDS)技術

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。

Conventional Technology:Two resistors with high electrical ratings are necessary. / ACDS Technology:No external resistor is required.

Products incorporating the ACDS technology:
TB67S141 TB67S142 TB67S145 TB67S149 TB67S179 TB67S508

3. Active Gain Control (AGC) Technology

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.

Active Gain Control (AGC) Technology

4. Anomaly detection technology

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.)

5. Micro-step drive

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).

Full-step mode

The step angle is 360 degrees divided by the total number of poles.

For the four poles, 360 degrees/4 = 90 degrees.

Assuming there is a 36-pole motor, 360 degrees/36 = 10 degrees, and the single-step operating angle of the full-step mode is 10 degrees.

Half-step mode

One step angle of the half-step mode is 1/2 of the full-step mode.

Micro-step mode

One step angle of the micro-step mode can be selected to be 1/4 of the full-step mode and a finer step angle.

(Example 1/4)

6. High-Voltage Analog Process Technology

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.

High-Voltage Analog Process Technology

聯繫方式

如您需查詢,請點擊其中任何一個連結

技術方面的問題
購買、樣片和IC可靠性的相關諮詢
To Top
·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.