3-Phase BLDC Motor Driver IC - Hitachi
Description
3-Phase BLDC Motor Driver IC
P1/16
ECN30204
The ECN30204 is a fully integrated BLDC motor driver IC that facilitates a rapid design process and low part count solution.
The IC integrates a commutation-logic, a PWM signal generator, IGBTs, FWDs(Free Wheeling Diodes), a charge pump, protection circuits, etc.
The IC can drive a BLDC motor with a high voltage DC power supply (up to 450VDC) directly rectified from AC power line (up to 230VAC) for downsizing a system and reducing power consumption.
Description · Integrated, Single-Chip 3-Phase BLDC Motor Driver IC.
· Integrated Charge Pump – Constant TOP Arm bias independent of motor speed.
· Integrated 3-Phase Brushless (Electronic) commutation via external Hall ICs.
· Integrated 3-Phase 6-IGBT Motor Bridge with on chip Free-Wheeling diodes.
· Pinout and Board Layout are compatible with the existing Hitachi ECN3022.
· Maximum Ratings 500VDC/1.
5A.
· Latch-Up free monolithic IC built with a high voltage Dielectrically Isolated (DI) process.
· Available in 3 package types with built-in heat sink (Tab).
Functions and Features · Vs Operating Voltage Range from 15VDC up to 450VDC.
· Simple Variable Speed Control via a single (VSP) analog input.
· PWM duty cycle generator provides the 0% to 100% speed control range.
· Tachometer – Generates the (RPM/60)× (P/2)× 3 Hz speed signal (FG).
· BOTTOM Arms switch at up to 20kHz via an on-chip OSC/PWM.
· On-Chip 7.
5VDC regulator (CB) with the guaranteed external Min load (25mA).
· Over-Current protection is set by an external Sense Resistor (RS).
· Under-Voltage protection for TOP and BOTTOM IGBT Arms.
· All output IGBT Shut-OFF function.
PDE-30204-1
Ref.
No.
IC-SP-05040 R0
Free Datasheet http://www.
datasheet-pdf.
com/
P2/16
ECN30204
Block Diagram
RU VCC(15V) C0 CB VB VB Supply Clock HU HV HW C+ RV RW D2 C2 + CD1 + C1 CL VS1 VS2 VS
VCC
Charge Pump
FG FG DM Rotation Direction
Top Arm Driver 3-Phase Distributor
...
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