ECN3021 Datasheet | Hitachi Semiconductor

Features ∗ Speed control for a 3-phase DC brushless motor is available with an external microprocessor. ∗ Bottom arm circuits can be operated in 20k Hz chopping frequency of PWM. D2 VCC(15V) C0 CB HU VB VB supply Clock HV HW C+ RV RW D1 + - VS C2 + - C1 C- VS1 VS2 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 parator + CMP - Motor SAW wave Generator CR RTR CTR Fig. 1 Block diagram .. .. PDE-3021-0 .. 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 Input Voltage VIN VSP,RS V -0.5 ~ VB+0.5 HU,HV,HW 4 Output Current IMDC MU,MV,MW 0.7 A 5 Peak Output Current IMP MU,MV,MW 1.0 A Note 1 6 Output Current in Start IOM MU,MV,MW 1.0 A Note 1 Up and Accelerating Note 2 7 Operating Junction Tjop °C -20 ~ +135 Temperature 8 Storage Temperature Tstg °C -40 ~ +150 Note 1. Please note that acumulated duty of a period exceeding 0.7A has to be less than 5% of total current flowing period. Note 2. Thermal Resistance Rj-c = 4°C/W Rj-a = 40°C/W Remended Operating Conditions No. Items Symbols Terminal MIN TYP MAX Unit Condition 1 Supply Voltage VS VS1,2 50 325 370 V 2 VCC VCC 13.5 15 16.5 V Note. Remended Safe Operating Area(SOA) It is remended that this IC should be used within the SOA as shown below, where IM and VM are the current and the voltage at the terminals connected to motor coils when the phase is changed (turned off). 3. 1.0 IM (A) Safe Operating Area 0 0 VM (V)...