Allegro APEK89333GEX-01-T-3 User Manual

DESCRIPTION

In all applications where reliability and performance are the main
goals, a proper cooling system is needed. The A89333 is a motor
controller device suited for different cooling fans. The ability to
choose the most suitable MOSFETs makes the A89333 suited for
a wide range of applications. With the APEK89333 evaluation
board (EVB) and Allegro-provided graphic user interface (GUI),
it is possible to test the device in application, determine configu-
ration parameters needed for the application, and program the
A89333 with the parameters. The GUI also provides the oppor-
tunity to visualize the plots of the main electrical quantities.
This user manual describes how to use the EVB and how to set
the algorithms and underlying features that make this device
suited for different scenario and suitable for many motors. The
step-by-step procedures provided in this manual provide the
quickest way to set up the IC and configure its parameters.

EVALUATION BOARD CONTENTS

• APEK89332GEX-01-T-3 evaluation board
Table 1: A89333 Evaluation Kit/Board Configurations
Configuration Name
APEK89333GEX-01-T-3
Description......................................................................................... 1
Evaluation Board Contents ................................................................ 1
Overview............................................................................................ 1
Introduction ........................................................................................ 2
A89333 Evaluation Board Quick Startup Guide ................................ 3
Evaluation Setup ......................................................................... 3
Make Evaluation Board Connections .......................................... 4
Launch A89333 GUI .................................................................... 5
Read EEPROM and Show Settings ............................................ 6
Read Status ................................................................................. 8
(If Required) Load Saved Configuration or Restore EEPROM to
Default ......................................................................................... 9
(If Required) Load Configuration from EEPROM into Shadow
Registers in RAM ..................................................................... 10
(If Required) Verify EEPROM Contents .................................... 10
Set Command Duty and Start Motor ..........................................11
Save Configuration to EEPROM or File .....................................11
Tips: Load Configuration File and Start Evaluation Without
EEPROM Programming and Power Cycling ............................. 12
Basic Startup of Motor ..................................................................... 13
Set Maximum System Variables ................................................ 13
Maximum System Speed .................................................... 13
Maximum System Current and Bus Current Sensing .......... 13
DC-Link Voltage .................................................................. 14
Maximum Electrical Power .................................................. 14
APEK89333-UM, Rev. 1
MCO-0001624
A89333 Evaluation Board User Manual
Part Number
A89333GECSR

Table of Contents

Figure 1: APEK89333 Evaluation Board
Set Motor Electrical Parameters ................................................ 15
Calculation of BEMF Constant (K
Set Torque Control Mode........................................................... 16
Set PWM and Dead Time .......................................................... 16
Disable Advanced Feature ........................................................ 17
Set Startup Variables ................................................................. 18
Phase 1: Align or IPD .......................................................... 18
Phase 2: Ramp-up .............................................................. 22
Phase 3: Drive-Closed-Loop Tuning ................................. 22
Phase 4: Drive-Speed-Loop Tuning .................................. 25
Saving Parameters to EEPROM ......................................... 27
GUI Tab Explanations and Advanced Features ............................... 28
Status Tab.................................................................................. 28
Motor Tab................................................................................... 29
CONFIG2 Tab ..................................................................... 30
Config 3 Tab ........................................................................ 32
Config 4 Tab ........................................................................ 35
Startup Tab .......................................................................... 36
Brake, Soft-Off Tab .............................................................. 37
Advanced Tab ...................................................................... 39
Speed/UCC Curve ............................................................... 40
Faults Tab ............................................................................ 43
Schematic ........................................................................................ 44
Layout .............................................................................................. 45
Related Links ................................................................................... 47
APEK89333
) ..................................... 15
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July 18, 2024