ZHCSDF3D May 2014 – March 2018 DRV2605L
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Support for ERM and LRA Actuators
- 8.3.2 Smart-Loop Architecture
- 8.3.3 Open-Loop Operation for LRA
- 8.3.4 Open-Loop Operation for ERM
- 8.3.5 Flexible Front-End Interface
- 8.3.6 Edge Rate Control
- 8.3.7 Constant Vibration Strength
- 8.3.8 Battery Voltage Reporting
- 8.3.9 One-Time Programmable (OTP) Memory for Configuration
- 8.3.10 Low-Power Standby
- 8.3.11 I2C Watchdog Timer
- 8.3.12 Device Protection
- 8.4 Device Functional Modes
- 8.5
Programming
- 8.5.1 Auto-Resonance Engine Programming for the LRA
- 8.5.2 Automatic-Level Calibration Programming
- 8.5.3 I2C Interface
- 8.5.4 Programming for Open-Loop Operation
- 8.5.5 Programming for Closed-Loop Operation
- 8.5.6 Auto Calibration Procedure
- 8.5.7 Programming On-Chip OTP Memory
- 8.5.8 Waveform Playback Programming
- 8.6
Register Map
- 8.6.1 Status (Address: 0x00)
- 8.6.2 Mode (Address: 0x01)
- 8.6.3 Real-Time Playback Input (Address: 0x02)
- 8.6.4 Library Selection (Address: 0x03)
- 8.6.5 Waveform Sequencer (Address: 0x04 to 0x0B)
- 8.6.6 GO (Address: 0x0C)
- 8.6.7 Overdrive Time Offset (Address: 0x0D)
- 8.6.8 Sustain Time Offset, Positive (Address: 0x0E)
- 8.6.9 Sustain Time Offset, Negative (Address: 0x0F)
- 8.6.10 Brake Time Offset (Address: 0x10)
- 8.6.11 Audio-to-Vibe Control (Address: 0x11)
- 8.6.12 Audio-to-Vibe Minimum Input Level (Address: 0x12)
- 8.6.13 Audio-to-Vibe Maximum Input Level (Address: 0x13)
- 8.6.14 Audio-to-Vibe Minimum Output Drive (Address: 0x14)
- 8.6.15 Audio-to-Vibe Maximum Output Drive (Address: 0x15)
- 8.6.16 Rated Voltage (Address: 0x16)
- 8.6.17 Overdrive Clamp Voltage (Address: 0x17)
- 8.6.18 Auto-Calibration Compensation Result (Address: 0x18)
- 8.6.19 Auto-Calibration Back-EMF Result (Address: 0x19)
- 8.6.20 Feedback Control (Address: 0x1A)
- 8.6.21 Control1 (Address: 0x1B)
- 8.6.22 Control2 (Address: 0x1C)
- 8.6.23 Control3 (Address: 0x1D)
- 8.6.24 Control4 (Address: 0x1E)
- 8.6.25 Control5 (Address: 0x1F)
- 8.6.26 LRA Open Loop Period (Address: 0x20)
- 8.6.27 V(BAT) Voltage Monitor (Address: 0x21)
- 8.6.28 LRA Resonance Period (Address: 0x22)
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
7.1 Test Setup for Graphs
To capture the graphs displayed in the Typical Characteristics section, the following first-order RC-filter setup was used with the exception of the waveform in Figure 9 which was captured without any output filter. This filter is recommended when viewing output signals on an oscilloscope because output PWM modulation is present in all modes. Ensure that effective impedance of the filter is not too low because the closed-loop and auto resonance-tracking features can be affected. Therefore, TI recommends that this exact filter be used for output measurement. Most oscilloscopes have an input impedance of 1 MΩ on each channel and therefore have an approximately 1% loss in measured amplitude because of the voltage-divider effect with the filter.
Figure 11. Test Setup