Technology Front
HOLTEK New HT45F4833 DC Motor Driver SoC MCU
Published: Nov 21,2018336 Read

Holtek announces the release of the HT45F4833 device, which is an SoC MCU specially dedicated for use in DC motor driver applications. The device includes an integrated LDO, an H-Bridge as well as all the peripheral circuitry required for DC motor driver function implementation. Such a high level of functional integration give this dedicated MCU a high performance/cost ratio which can be applied for automatic reclosers or DC motor driver applications with a voltage of up to 12V.
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The device contains a rich set of system resources, including a Flash Program Memory capacity of 2K words, a Data Memory capacity of 128 bytes, a True EEPROM Memory capacity of 32 bytes and several Timer Modules providing an enhanced level of application flexibility.
Several external interrupt functions are provided to simultaneously operate with multiple types of position sensors, such as Hall Sensor, Micro-switches, etc., which are used to sense the automatic recloser switch position. A 12-bit A/D Converter is also provided for power monitoring or other related applications. The integrated H-Bridge and motor driving circuit can easily implement Motor forward rotation/reversal and brake control.
The circuitry also contains complementary/non-complementary PWMs, deadtime control as well as fool-proof protection functions. Having all the above mentioned features provides this dedicated MCU the advantages of smaller PCB areas and reduced manufacturing BOM costs, thus improving production efficiency and uniformity.