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ECN3021 - High Voltage Monolithic IC

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 -.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.
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