SLVSD14A June 2017 – June 2020 DRV10983-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Description (Continued)
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4
Device Functional Modes
- 8.4.1 Motor Parameters
- 8.4.2 Starting the Motor Under Different Initial Conditions
- 8.4.3 Motor Start Sequence
- 8.4.4 Align Current
- 8.4.5 Start-Up Current Setting
- 8.4.6 Closed Loop
- 8.4.7 Current Limit
- 8.4.8 Lock Detect and Fault Handling
- 8.4.9 Anti Voltage Suppression Function
- 8.4.10 PWM Output
- 8.4.11 FG Customized Configuration
- 8.4.12
Diagnostics and Visibility
- 8.4.12.1 Motor-Status Readback
- 8.4.12.2 Motor-Speed Readback
- 8.4.12.3 Motor Electrical-Period Readback
- 8.4.12.4 BEMF Constant Read Back
- 8.4.12.5 Motor Estimated Position by IPD
- 8.4.12.6 Supply-Voltage Readback
- 8.4.12.7 Speed-Command Readback
- 8.4.12.8 Speed-Command Buffer Readback
- 8.4.12.9 Fault Diagnostics
- 8.5
Register Maps
- 8.5.1 I2C Serial Interface
- 8.5.2 Register Map
- 8.5.3
Register Descriptions
- 8.5.3.1 FaultReg Register (address = 0x00) [reset = 0x00]
- 8.5.3.2 MotorSpeed Register (address = 0x01) [reset = 0x00]
- 8.5.3.3 MotorPeriod Register (address = 0x02) [reset = 0x00]
- 8.5.3.4 MotorKt Register (address = 0x03) [reset = 0x00]
- 8.5.3.5 MotorCurrent Register (address = 0x04) [reset = 0x00]
- 8.5.3.6 IPDPosition–SupplyVoltage Register (address = 0x05) [reset = 0x00]
- 8.5.3.7 SpeedCmd–spdCmdBuffer Register (address = 0x06) [reset = 0x00]
- 8.5.3.8 AnalogInLvl Register (address = 0x07) [reset = 0x00]
- 8.5.3.9 DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
- 8.5.3.10 DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
- 8.5.3.11 Unused Registers (addresses = 0x011 Through 0x2F)
- 8.5.3.12 SpeedCtrl Register (address = 0x30) [reset = 0x00]
- 8.5.3.13 EEPROM Programming1 Register (address = 0x31) [reset = 0x00]
- 8.5.3.14 EEPROM Programming2 Register (address = 0x32) [reset = 0x00]
- 8.5.3.15 EEPROM Programming3 Register (address = 0x33) [reset = 0x00]
- 8.5.3.16 EEPROM Programming4 Register (address = 0x34) [reset = 0x00]
- 8.5.3.17 EEPROM Programming5 Register (address = 0x35) [reset = 0x00]
- 8.5.3.18 EEPROM Programming6 Register (address = 0x36) [reset = 0x00]
- 8.5.3.19 Unused Registers (addresses = 0x37 Through 0x5F)
- 8.5.3.20 EECTRL Register (address = 0x60) [reset = 0x00]
- 8.5.3.21 Unused Registers (addresses = 0x61 Through 0x8F)
- 8.5.3.22 CONFIG1 Register (address = 0x90) [reset = 0x00]
- 8.5.3.23 CONFIG2 Register (address = 0x91) [reset = 0x00]
- 8.5.3.24 CONFIG3 Register (address = 0x92) [reset = 0x00]
- 8.5.3.25 CONFIG4 Register (address = 0x93) [reset = 0x00]
- 8.5.3.26 CONFIG5 Register (address = 0x94) [reset = 0x00]
- 8.5.3.27 CONFIG6 Register (address = 0x95) [reset = 0x00]
- 8.5.3.28 CONFIG7 Register (address = 0x96) [reset = 0x00]
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|24
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|24
訂購(gòu)信息
8.4.7.1 Acceleration Current Limit
The acceleration current limit limits the voltage applied to the motor to prevent the current from exceeding the programmed threshold. The acceleration current limit threshold is configured by writing the SWiLimitThr[3:0] bits to select ILIMIT. The acceleration current limit does not use a direct measurement of current. It uses the programmed motor phase resistance, RPH_CT, and programmed BEMF constant, Kt, to limit the voltage applied to the motor, U, as shown in Figure 32 and Equation 8.
When the acceleration current limit is active, it does not stop the motor from spinning nor does it trigger a fault. The functionality of the acceleration current limit is only available in closed-loop control.
Figure 32. Acceleration Current Limit