Multi-channel driver and inverter IPMs for industrial, white goods and consumer

November 12, 2014 // By Graham Prophet
ON Semiconductor has added stepper motor drivers and two integrated power modules (IPMs) for a variety of industrial, white goods and consumer applications.

The LV8714TA is an energy efficient dual stepper motor driver with operating voltages ranging from 4 to 16.5V. With constant current control for its on-chip quad H-bridge channels, this device is capable of driving two stepper or four DC motors independently. The device's power FETs with total on-state resistance of 0.9Ω for one leg and synchronous rectification type switching allow its power consumption to be kept to a minimum while not in full operation. The device supports a low power saving mode with ultra-low standby current (< 1 µA) in idle state. The internal current sense mechanism ensures loss-less current measurement without any external power resistor. On-chip regulators enable single supply operation of the device and lower the system solution footprint. With an operating ambient temperature range of -20 °C to +85 °C, this device has built-in thermal shutdown, low-voltage shutdown and over-current protection mechanisms that enable a reliable system solution. Among the wide variety of applications that this device addresses are security camera systems, point of sale (PoS) terminals, document scanners and multi-function printers.