Germany ELMOS has announced the launch of a new generation of three-phase brushless (BLDC) motor controller chip based on E523.81. The chip integrates the necessary intelligent functions, without the need to write any application software, simply by the parameters of the chip configuration to adapt to different motor parameters and performance requirements, the use of wizard tools to start. The chip is controlled by sine wave, the motor running is very quiet, so especially for vehicles in the vehicle noise requirements of the place.

The chip uses 5mm × 5mm QFN package, saving PCB space design, the use of the chip controller is particularly suitable for compact fans, pumps, pumps and other areas of the board have more stringent requirements of the field. The integrated drive provides up to 500mA of operating current, and the motor speed to which the controller chip is connected can be set via analog or PWM signals.

E523.81 has comprehensive protection and fault diagnosis function. For example, with stall detection and detection of stall that can be automatically restarted after overtemperature protection, overvoltage / undervoltage, short circuit, configurable error handling mode and configurable display function. If you want to learn more information about motors, solenoids, and driver boards/modules,please go to omoelec.com.

The solution can directly drive the motor connected to it, and if the wiring between the PCB and the motor is very long, additional components may be required at the M1-M3 pin of the chip for EMC and ESD compatibility. The chip has a junction temperature range of -40 ° C to + 170 ° C, making the solution suitable for use in very demanding temperature environments.

Main technical features:

• PMSM alone;

• Built-in power MOS, can output up to 500mA (rms) of the current;

• Optional PWM speed control, analog speed interface, and fault output interface;

• Output speed information;

• Current-controlled start-up mode;

• Integrated configurable error handling;

• Stall detection;

• Automatic restart and rotor detection;

• speed or current control;

• Complete protection features include overtemperature, overvoltage / undervoltage, overcurrent and short circuit, etc., to enhance system product safety.

Application:

• Small PMSM / DC brushless fan control;

• Small PMSM / DC brushless water pump, oil pump control. Reference: RC0603FR-07150KL and 05085C104MAT2A