Datasheet E523.81 (Elmos) - 3

500 mA Sinusoidal BLDC Motor Controller E523.81
Production Data – May 15, 2018
Pin Description No Name Type Description
1 GNDA HV_S ADC reference ground ground 2 VDDA S unconnected VDD supply output; connection of external capacitor 3 VDDD S internal VDD interface supply voltage 4 GND ground 5 DBG D_IO wave output; digital I/O pin AD_IO special output for system configuration in the lab 6 TACH D_IO tachometer output digital I/O pin 7 TDA D_IO test interface; digital I/O pin JTAG bidirectional signal. shared signal for TMS, TDI and TDO 8 TCK D_IO test interface; digital I/O pin D_I JTAG clock input 9 n.c. unconnected 10 GNDBRIDGE[2] S bridge ground pin bridge ground 11 M[3] HV_A_IO motor pin motor 12 VBRIDGE[2] HV_S bridge supply pin bridge supply voltage 13 M[2] HV_A_IO motor pin motor 14 GNDBRIDGE[1] S bridge ground pin bridge ground 15 M[1] HV_A_IO motor pin motor 16 VBRIDGE[1] HV_S bridge supply pin bridge supply voltage 17 PWM HV_D_I PWM I/O goal speed input 18 VS HV_S supply supply input 19 T HV_D_I test mode activation test activation input 20 VREF ADC reference voltage EP EP exposed die paddle, connect to GND
Note:
A = Analog, D = Digital, S = Supply, I = Input, O = Output, B = Bidirectional, HV = High Voltage Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. Elmos Semiconductor AG Data Sheet QM-No.: 25DS2381E.03 3 / 68 Document Outline Features Applications General Description Ordering Information Typical Operating Circuit Functional Diagram Pin Configuration Pin Description 1 Absolute Maximum Ratings 2 ESD 3 Recommended Operating Conditions 4 Electrical Characteristics 4.1 Clock System 4.2 I/O Peripherals 4.2.1 PWM Speed Input 4.2.2 Low Voltage Digital I/O Pins 4.3 PMSM Motion Control Unit 4.3.1 Speed Control 4.4 System Control 4.4.1 Error Detection and Behaviour 4.4.1.1 High Temperature Speed Reduction and Shut Down 4.4.1.2 Low Load Detection 4.5 Power Supply 4.5.1 VDD Supply 4.6 Integrated Motor Bridge 4.6.1 "Small" Bridge Parametrical Description 4.7 Monitoring and Measurements 4.7.1 Temperature Monitoring 4.7.2 VS Measurement 5 Functional Description 5.1 Overview 5.2 Block Diagrams 5.3 System Level Motor Interface and Error Interface 5.3.1 Motor Interface 5.3.1.1 Goal Speed Input 5.3.2 Error Interface 5.3.3 TACHO Output 5.4 Clock System 5.5 I/O Peripherals 5.5.1 PWM Speed Input 5.5.2 Three Level Test Pin 5.6 PMSM Motion Control Unit 5.6.1 PMSM Control Principle 5.6.1.1 Startup 5.6.1.2 Closed Loop Control 5.6.2 State Machine 5.6.2.1 State Off 5.6.2.2 State Forward Synchronisation 5.6.2.3 State Current Rampup 5.6.2.4 Rotor Settling 5.6.2.5 State Startup RPM Ramp 5.6.2.6 State Closed Loop Control 1 5.6.2.7 State Forward Synchronisation 5.6.2.8 State Closed Loop Control 5.6.3 Speed Control 5.6.4 Phase Voltage Generation 5.6.4.1 PWM Generation 5.6.4.1.1 Principle 5.6.4.1.2 Current Measurement Trigger Generation 5.6.4.2 Averaged Voltage Generation 5.6.4.2.1 Look up Table 5.6.4.3 Look up Table Address Generation 5.6.4.4 Speed Ramp Generator 5.6.4.5 Pll Prescaler Adjust Unit 5.6.4.6 Fundamental Frequency Base Generation 5.6.5 ADC Calculations 5.6.5.1 ADC Current Measurement 5.6.5.1.1 Current Filter 5.6.5.2 BEMF Measurement and Calculation 5.6.5.2.1 Phase Voltage Measurement 5.6.5.2.2 BEMF Calculation 5.6.6 Current Control/Limitation 5.6.7 Stall Detection 5.6.7.1 Current Slope Based Stall Detection 5.6.7.2 Field Speed Based Stall Detection 5.6.7.3 Motor Constant Based Stall Detection 5.6.7.4 Synchronisation Based Stall Detection 5.6.7.5 Current Zero Crossing Observation 5.6.8 Current Direction Detection 5.6.9 Angle Controller 5.6.9.1 Goal Angle Calculation 5.6.9.2 Angle Difference Calculation 5.6.9.3 Generator Detection 5.6.9.4 Frequency Correction 5.6.10 Motor Synchronisation 5.7 System Control 5.7.1 Power up Behaviour 5.7.2 Error Detection and Behaviour 5.7.2.1 High Temperature Speed Reduction and Shut Down 5.7.2.2 High Temperature Current Reduction 5.7.2.3 Low Load Detection 5.7.2.4 Rotor Blockage Detection and Reaction 5.7.2.4.1 Detection 5.7.2.4.2 Reaction 5.7.2.5 Short Circuit Reaction 5.8 System Configuration 5.8.1 Debugging and Configuration Interface 5.8.1.1 Control and State Machine Disabling Functions 5.8.1.2 Observing Special Internal Signals 5.9 Power Supply 5.9.1 Supply Overview IC Supply Only 5.9.2 VDD Supply 5.9.3 References 5.10 Integrated Motor Bridge 5.11 Monitoring and Measurements 5.11.1 Monitoring Principle 5.11.2 Temperature Monitoring 5.11.3 VS Measurement 5.11.4 BEMF Measurement 5.11.5 ADC Reference 5.12 OTP 6 Package Reference 7 Typical Applications 8 Revision History 9 General 9.1 WARNING - Life Support Applications Policy 9.2 General Disclaimer 9.3 Application Disclaimer 10 Contact Info 11 Contents