Hitachi Power Releases High Voltage Driver Chips
ECN30216 and ECN30624 are able to tolerate large variation of supply voltage
Hitachi Power Semiconductor Device (HPSD) has developed two high-voltage motor driver ICs primarily for room air-conditioners.
The single-chip IC products 'ECN30216' & ‘ECN30624' are able to tolerate large variation of supply voltage. Both products possess the function of shutting down all the output devices when overvoltage is detected in the motor drive state and thereby achieves the withstanding voltage of 1,000V. 'ECN30216' is mainly for the fan-motors used for in-room units of air-conditioners, and ‘ECN30624' is principally for those of exterior units. The products are to be shipped out as of Jun. 2022.
The withstand voltage of 1000V is realised by implementing the function to disable all the output devices which supply the driving power to the motor upon detecting excessive power supply voltage in the motor drive state.
In addition, the design of new upper arm drive circuit has made it possible to include the capacitor inside the driver IC, eliminating two external capacitors required for conventional such products, and thereby saving space to improve customer's freedom of designing motor or inverter control board for home appliances.
HPSD has supplied its power electronics products for mobility application such as Traction, and EV so far, but is accelerating its development activities of the products having high environmental values for the realisation of Carbon-Free Society.