ECN3022
ECN3022 is High Voltage Monolithic IC manufactured by 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. ∗ For converted AC200 to 230V power supplies.
D2 VCC(15V) C0 CB HU VB VB supply Clock HV HW C+
RV RW
D1 + C1 CL VS1 VS2
C2 + C-
Charge Pump
FG FG DM Rotating Directio M
Top Arm Driver 3-Phase Distributor Bottom Arm Driver LVSD
Clock
Hall ICs
MU MV MW
Microprocessor Analog output
VSP parator
CMP + 1.23V + CMP
- Motor
SAW wave Generator
Over Current Sense
+ Vref 0.5V RS GH1 GH2
CR RTR CTR
Fig. 1
Block diagram
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PDE-3022-1
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P2/9
1. General (1) Type (2) Application (3) Structure (4) Package ECN3022SP, ECN3022SPV, ECN3022SPR 3-phase DC Brushless Motor Monolithic IC SP-23TA, SP-23TB, SP-23TR
2.
Maximum Allowable Ratings (Ta=25°C) No. Items Symbols 1 Output Device VSM Breakdown Voltage 2 Supply Voltage VCC 3 Input Voltage VIN 4 5
Output Current IOM 1.5 A Note 1 Note 2 Operating Junction Tjop °C -20 ~ +135 Temperature 6 Storage Temperature Tstg °C -40 ~ +150 Note 1. 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 IGBT turn on and turn off.
Terminal VS1,VS2 MU,MV,MW VCC VSP,RS HU,HV,HW MU,MV,MW
Ratings 500 18 -0.5 ~ VB+0.5
Unit V V...