Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has expanded its lineup of stepping motor driver ICs with the launch of “TB67S549FTG,” a stepping motor driver IC housed in a small package, with built-in constant-current control that does not require external circuit components. The new driver contributes to saving space on circuit boards and is suited for industrial equipment such as office automation and financial equipment. Shipments start today.
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TB67S549FTG uses Toshiba’s DMOS FET[1] for its output power transistor, and features a motor output voltage rating of 40V and a motor output current rating of 1.5A[2]. Use of the QFN24 package reduces the mounting area to about 64% of the QFN32 package used for Toshiba’s current product, TB67S539FTG. This helps save space on circuit boards.
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In addition, the new driver incorporates a current detection part for constant-current motor control, and requires no external capacitor for a charge pump circuit. This will reduce external circuit components, thereby saving space on circuit boards.
TB67S549FTG supports motor power supply voltages from 4.5V to 33V, and has a current consumption of up to 1μA in sleep mode, making it widely usable for 12V/24V power supply applications.
Toshiba will continue to develop products for a wide range of applications, and to provide total solutions that contribute to user design simplification, board area reduction, and total cost reduction.
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