ECN3021

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 rotating direction monitor circuit 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 Rotating Direction Monitor Top Arm Driver 3-Phase Distributor Bottom Arm Driver Over Current Sense Clock + Vref 0.5V RS GH1 GH2 Hall ICs MU MV MW Microprocessor Analog output VSP Comparator + CMP - Motor SAW wave Generator CR RTR CTR VTR GL RS Fig. 1 Block diagram www.DataSheet4U.com www.DataSheet4U.com PDE-3021-0 www.DataSheet4U.com ECN3021 1. General (1) Type (2) Application (3) Structure (4) Package ECN3021 3-phase DC Brushless Motor Monolithic IC SP-23T 2. Maximum Allowable Ratings (Ta=25°C) No. Items Symbols Terminal Ratings Unit Condition 1 Output Device VSM VS1,VS2 500 V Breakdown Voltage MU,MV,MW 2 Supply Voltage VCC VCC 18 V 3 I...