ECN3021 Datasheet (Hitachi) - High Voltage Monolithic IC

ECN3021, High Voltage Monolithic IC

HIGH-VOLTAGE MONOLITHIC IC ECN3021 ECN3021 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 rotat

ECN3021 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. RU D2 VCC(15V) C0 CB HU VB VB supply Clock HV HW C+ RV RW D1 + - VS C2 + - C1 C- CL VS1 VS2 VCC Charge Pump FG FG DM R