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
8.4.3.5.2.2 IPD Release Mode
Two options are available for stopping the voltage applied to the motor when the current threshold is reached. If IPDRlsMd = 0, the recirculate mode is selected. The low-side (S6) MOSFET remains on to allow the current to recirculate between the MOSFET (S6) and body diode (S2) (see Figure 21). If IPDRlsMd = 1, the high-impedance (Hi-Z) mode is selected. Both the high-side (S1) and low-side (S6) MOSFETs are turned off and the current flies back across the body diodes into the power supply (see Figure 22).
In the high-impedance state, the phase current has a faster settle-down time, but that could result in a surge on VCC. Manage this with appropriate selection of either a clamp circuit or by providing sufficient capacitance between VCC and GND. If the voltage surge cannot be contained and if it is unacceptable for the application, then select the recirculate mode. When selecting the recirculate mode, select the IPDClk[1:0] bits to give the current in the motor windings enough time to decay to 0.
Figure 21. IPD Release Mode 0 
Figure 22. IPD Release Mode 1