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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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步進馬達驅動 ICs

馬達產品的機械子系統使用許多步進馬達,這些馬達為消耗過多的電流,以免失步,進而產生大量的熱量。
有源增益控制 Active gain control(AGC)使用一種簡單的技術來解決此問題,從而提高了產品的價值。

Use stepping motors to move to the next step

產品陣容

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Stepping Motor Drivers Product Lineup

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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Roadmap / Products map

Product Lines

Product Lines: Stepping Motor Drivers

東芝提供使用BiCD製程的步進馬達驅動器的廣泛產品陣容,該製程可提供高精度和高電流能力。東芝的步進馬達驅動器有雙極和單極配置。

*1 The TB67S105 and TB67S145 do not support micro-stepping.

Video

東芝獨有技術

東芝步進馬達之特性

Extensive product lineup

豐富的產品陣容

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

基於領先技術的客戶需求和問題解決方案

1. Advanced Dynamic Mixed Decay (ADMD) Technology

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

與傳統的混合衰減模式相比,東芝獨創的ADMD技術可更緊密地跟踪輸入電流,從而可以在高轉速下實現高效的馬達控制。

Products incorporating the ADMD technology:

2. Advanced Current Detect System (ACDS) Technology

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

東芝獨創的ACDS技術使馬達驅動具有高精度的恆定電流,而無需外部電流感應電阻器。
減少的零件數量還有助於減少電路板面積和材料清單(BOM)成本。

Products incorporating the ACDS technology:

3. Active Gain Control (AGC) Technology

簡單的系統可實時優化驅動電流

為所需的馬達扭矩提供足夠的margin,馬達控制驅動器(MCD)通常提供大於最大負載下峰值電流的馬達驅動電流。這意味著多餘的電流一直持續流動。為了最大程度地減少不必要的電流消耗,感測器或微控制器用於監視負載條件的變化,從而根據負載條件調整馬達驅動電流。這種反饋過程需要極其複雜的控制。東芝提供了採用AGC技術的馬達驅動IC,其可感應馬達的負載轉矩並自動優化馬達驅動電流。這使得可以在簡化高效馬達控制的同時防止馬達失步。

提高效率,節省能源並顯著減少電動機的散熱
Improving efficiency, saving energy, and significantly reducing heat dissipation in a motor

AGC技術會根據馬達的負載條件自動調節馬達驅動電流,以減少額外的電流,從而顯著減少馬達驅動器IC和馬達產生的熱量。這有助於減少系統中的整體熱量產生以及由此導致的性能下降。

4. Anomaly detection technology

內建電路,用於檢測低壓(UVLO),過電流(ISD)和過熱(TSD)等異常。


(注意:內建的錯誤檢測功能因產品而異。)

5. Micro-step drive

全步進驅動器打開和關閉兩個繞組的電流並使它們旋轉固定角度,而微步進驅動器可以通過改變兩個繞組的電流比,以比基本步進角更精細的步進角旋轉它們逐步纏繞。

範圍是1 / 4、1 / 8、1 / 16、1 / 32和1/64(步進)。

Full-step mode

Full-step mode

步距角為360度除以極數。

對於四個極點,360度/ 4 = 90度。

假設有一個36極電機,即360度/ 36 = 10度,而全步模式的單步操作角度為10度。

Half-step mode

Half-step mode

半步模式的一個步角是全步模式的1/2。

Micro-step mode

Micro-step mode

微步模式的一個步角可以選擇為全步模式的1/4和更精細的步角。

(Example 1/4)

6. High-Voltage Analog Process Technology

High-Voltage Analog Process Technology

東芝的步進馬達驅動器採用最先進的高壓模擬製程(130 nm BiCD製程),在同一單片結構上將低壓控制電路與高壓DMOS輸出驅動器結合在一起。因此,可以使用小型WQFN48(7 mm×7 mm)封裝來容納額定電壓為84 V的高壓馬達驅動器,這有助於減小解決方案的尺寸。

Evaluation kit and reference board

東芝提供各種步進馬達驅動器,這些驅動器可帶來AGC的巨大優勢。具有時鐘輸入的步進馬達驅動器和具有相位輸入的步進馬達驅動器均可用。如果要使用集成了AGC技術的步進馬達評估產品計劃或設計,請下載參考設計。

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* PSpice is a registered trademark of Cadence Design Systems, Inc.

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