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Toshiba introduces 50V/3.0A constant current stepper motor driver IC

Toshiba Electronics Europe has introduced the TB67S559FTG 50V/3.0A stepper motor driver IC that supports constant current control with built-in current detection.

50V/3.0A constant current stepper motor driver IC Credit: Toshiba Electronics Europe

Housed in a 5.0mm x 5.0mm QFN32 package, the device operates over a wide 8.2V to 44V output voltage range to cover 12V, 24V, and 36V applications, including office automation (OA) equipment, point of sale (POS) terminals, vending machines, surveillance cameras, and industrial equipment.

The TB67S559FTG represents a significant voltage and current rating upgrade to its pin/function compatible predecessor, the 40V/2.0A TB67S539FTG, and offers an ultra-low on-resistance (RDS(ON)) 0.4Ω (typ., covering the upper and lower transistor). When in sleep mode, the device draws a maximum current of 1μA enabling engineers to increase the efficiency and reliability of their designs while reducing waste heat.

The TB67S559FTG eliminates the need for external current sense resistors having built-in current detection circuitry. The built-in charge pump circuit does not require an external capacitor, so eliminating the need for these external components enables substantial space saving in the mounting area.

Toshiba offers an extensive selection of stepper motor drivers manufactured using a BiCD (Bipolar CMOS DMOS) process that ensures high accuracy and high current capability.