High-Efficiency Stepper Motor Driver IC


ON Semiconductor has introduced the LV8702V, a new stepper motor driver IC that delivers significantly improved efficiency versus existing products on the market. The device has been specifically designed for office automation equipment applications such as copiers, scanners and multi-function printers.

Besides reducing overall power consumption, the LV8702V helps reduce heat generation, vibration and noise from the motor in applications such as positioning control in printers. Due to the increased efficiency, the surface temperature of the driver IC and the motor are decreased by up to 46ºC and 28ºC respectively*2. This can overcome the need for cooling fans with the corresponding space and cost savings and enhanced system reliability. The LV8702V stepper motor driver IC detects motor condition through driver waveform monitoring; power consumption is reduced by automatically reducing the current value according to the rotation speed or load of the motor. The new device has an operating voltage range of 9 volts (V) to 32 V. Protection features include output short protection, a thermal shutdown function and a step-out detection function.

The LV8702V is offered in a SSOP44J package measuring 5.6 mm by 15.0 mm. The device is budgetary priced at $6.00 per unit for orders in quantities of 2,000 units.

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