Toshiba Launches Bipolar Stepping Motor Driver IC that Needs No Current Detection Resistors
2017/01/25Toshiba
电源/电力
January 24, 2017
TOKYO–Toshiba Corporation's (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced the launch of “TB67S508FTG,” a bipolar stepping motor driver offering 40V high voltage and 3.0A current with no need for external current detection resistors. Sample shipment starts today.
Printers, office automation equipment, surveillance cameras, banking terminals such as ATMs, banknote identification machines, amusement machines, and home appliances are being downsized to save space and improve design. Low power consumption is also growing in importance as a means to scale down IC boards and reduce internal heat in products.
The new IC integrates Toshiba’s ACDS[1] architecture, adopted previously in a unipolar stepping motor driver IC. It eliminates the need for two external resistors usually required to detect motor current. By adopting a small QFN36 package (mounting area 5 mm × 5 mm), the new IC reduces the mounting area to about 66% of that of Toshiba’s current products[2]. ACDS also reduces power loss and resistor variation errors, and contributes to low power consumption and highly precise constant current control.
Main Features of the New Product
No need for external resistors to detect current.
ACDS, Toshiba’s original architecture, realizes highly precise constant current motor control without external resistors to detect current.
Lower heat generation during motor driving.
A built-in output DMOS with low-on-resistance (0.45Ω (upper + lower: typ.)) reduces heat generation by 13% when the stepping motor drives operate at 1A, compared to Toshiba’s current products.[3]
Small package
A small, high-heat-radiation QFN36 package saves space and reduces costs.
Main Specifications
Notes:
1: ACDS: Advanced Current Detect System.
2: Basis for comparison
Current product: Two detection resistors (5 mm × 2.5 mm) connected to the current IC (7 mm × 7 mm) with QFN48 package
New product (5 mm × 5 mm)
3: Compared with the current product, TB62213AFTG (maximum output rating 40V/3A)
4: ADMD: Advanced Dynamic Mixed Decay.
For more information about Exaple Application Circuit, ACDS and ADMD, please visit:
https://toshiba.semicon-storage.com/ap-en/company/news/news-topics/2017/01/linear-20170124-1.html?mm=cp170125&no=04
For more information about this new product, please visit:
https://toshiba.semicon-storage.com/info/lookup.jsp?pid=TB67S508FTG®ion=apc&lang=en?mm=cp170125&no=05
*Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.
Toshiba Corporation- Semiconductor and Storage Products Company Website＞http://toshiba.semicon-storage.com/ap-en?mm=cp170125&no=06
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http://toshiba.semicon-storage.com/ap-en?mm=cp170125&no=06
