Rev. 1.00
6
August 29, 2018
Rev. 1.00
7
August 29, 2018
HT45F6530
AC Voltage Regulator Flash MCU
HT45F6530
AC Voltage Regulator Flash MCU
General Description
The HT45F6530 device is a Flash Memory A/D type 8-bit high performance RISC architecture
microcontroller, specifically designed for AC Automatic Voltage Regulator applications. Aimed at
relay type AVR product required measurement circuits, the device can accurately measure input
and output voltages, detect zero crossing points and the relay action delay time. These and other
calibration parameters can be stored using the internal true EEPROM. In being able to implement all
the important AVR functions the device is able to reduce the external component requirements and
reduce the product PCB area.
Offering users the convenience of Flash Memory multi-programming features, this device also
includes a wide range of functions and features. Other memory includes an area of RAM Data
Memory as well as an area of true EEPROM memory for storage of non-volatile data such as serial
numbers, calibration data etc.
Analog features include a multi-channel A/D converter function. Multiple extremely flexible Timer
Modules provide timing, pulse generation and PWM generation functions. Protective features such
as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent
noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical
environments.
The device also includes fully integrated high and low speed oscillators which require no external
components for their implementation. The ability to operate and switch dynamically between a range
of operating modes using different clock sources gives users the ability to optimise microcontroller
operation and minimise power consumption.
Two over current protection circuits integrated in the device can be used to monitor the voltage
changes between input and output AC. Each OCP circuit contains an independent 12-bit D/A
converter, operational amplifier and comparator. The input and output voltages can be respectively
measured by internally connecting to the 12-bit A/D converter. By using the internal comparator
and D/A converter an AC zero crossing interrupt trigger function can be implemented. By using
the internal timer a relay action delay time can be implemented. For more detailed application
development information, refer to the application description section or the Power Bank application
solutions on the Holtek website.
The inclusion of flexible I/O programming features, Time-Base functions along with many other
features ensure that the device will find excellent use in applications such as AC voltage regulators
in addition to many others.