Toshiba introduces 50V/3.0A 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.
Housed in a 5.0mm x 5.0mm QFN32 package, the TB67S559FTG 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, industrial equipment, and more.
The TB67S559FTG is claimed to represent 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. The new driver IC, therefore, enables 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. Eliminating the need for these external components enables substantial space saving in the mounting area.
In addition to the TB67S559FTG and the pin/function compatible TB67S539FTG, 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. The driver ICs offer a range of advanced features, covering a broad spectrum of voltage and current ratings, and are available in a wide variety of packages.
