ECN3022 Datasheet - Hitachi

ECN3022 High Voltage Monolithic IC

P1/9 HIGH-VOLTAGE MONOLITHIC IC ECN3022 ECN3022 is a single chip three-phase bridge inverter IC which has 6 IGBTs in the circuit. Especially, it is very suitable for controlling the speed of 3-phase DC brushless motors to which converted AC200∼230V power supplies are applied. Fig. 1 shows the internal block diagram. Functions ∗ Integrated charge pump circuit ∗ Integrated free wheel diodes ∗ Integrated PWM circuit ∗ Integrated FG circuit ∗ Integrated over current protection circuit ∗ Integrated .

ECN3022 Features

* ∗ Speed control for a 3-phase DC brushless motor is available with an external microprocessor. ∗ Bottom arm circuits can be operated in 20kHz chopping frequency of PWM. ∗ For converted AC200 to 230V power supplies. RU D2 VCC(15V) C0 CB HU VB VB supply Clock HV HW C+ RV RW D1 + C1 CL VS1 VS2 VS

ECN3022_Hitachi.pdf