Datasheet
Table Of Contents
- General Description
- Key Features
- Applications
- System Diagrams
- Contents
- Figures
- Tables
- Legal
- Product Family
- 1 Terms and Definitions
- 2 Block Diagram
- 3 Pinout
- 4 Characteristics
- 5 Functional Description
- 5.1 Features Description
- Driving LRA and ERM Actuators
- Automatic LRA Resonant Frequency Tracking
- Wideband LRA Support
- I2C and PWM Input Streaming
- Low Latency I2C/GPI Wake-Up from IDLE State
- Three GPI Sequence Triggers for up to Six Independent Haptic Responses
- On-Board Waveform Memory with Amplitude, Time, and Frequency Control
- Active Acceleration and Rapid Stop for High-Fidelity Haptic Feedback
- Continuous Actuator Diagnostics and Fault Handling
- No Software Requirements with Embedded Operation
- Differential Output Drive
- Current Driven System
- Configurable EMI Suppression
- Automatic Short Circuit Protection
- Ultra-Low Power Consumption with State Retention
- Ultra-Low Latency in STANDBY State
- Supply Monitoring, Reporting, and Automatic Output Limiting
- Open- and Closed-Loop Modes
- Open-Loop Sine/Custom Wave Drive Support
- Small Solution Footprint
- Additional Features
- 5.2 Functional Modes
- 5.3 Resonant Frequency Tracking
- 5.4 Active Acceleration and Rapid Stop
- 5.5 Wideband Frequency Control
- 5.6 Device Configuration and Playback
- 5.7 Advanced Operation
- 5.7.1 Frequency Tracking
- 5.7.2 Rapid Stop
- 5.7.3 Initial Impedance Update
- 5.7.4 Amplitude PID
- 5.7.5 Wideband Operation
- 5.7.6 Custom Waveform Operation
- 5.7.7 Embedded Operation
- 5.7.8 Polarity Change Reporting for Half-Period Control in DRO Mode
- 5.7.9 Loop Filter Configuration
- 5.7.10 UVLO Threshold
- 5.7.11 Edge Rate Control
- 5.7.12 Double Output Current Range
- 5.7.13 Supply Monitoring, Reporting, and Automatic Output Limiting
- 5.7.14 BEMF Fault Limit
- 5.7.15 Increasing Impedance Detection Accuracy
- 5.7.16 Frequency Pause during Rapid Stop
- 5.7.17 Frequency Pause during Rapid Stop
- 5.7.18 Coin ERM Operation
- 5.8 Waveform Memory
- 5.9 General Data Format
- 5.10 I2C Control Interface
- 5.1 Features Description
- 6 Register Overview
- 7 Package Information
- 8 Ordering Information
- 9 Application Information
- 10 Layout Guidelines
DA7280
LRA/ERM Haptic Driver with Multiple Input Triggers,
Integrated Waveform Memory and Wideband Support
Datasheet
Revision 3.0
30-Jul-2019
CFR0011-120-00
6 of 76
© 2019 Dialog Semiconductor
Table 68: TRIM3 (0x005F) .................................................................................................................. 68
Table 69: TRIM4 (0x0060)................................................................................................................... 69
Table 70: TRIM6 0x(0062)................................................................................................................... 69
Table 71: D2602_TOP_CFG5 (0x006E) ............................................................................................. 69
Table 72: IRQ_EVENT_ACTUATOR_FAULT (0x0081) ..................................................................... 69
Table 73: IRQ_STATUS2 (0x0082) ..................................................................................................... 70
Table 74: IRQ_MASK2 (0x0083) ......................................................................................................... 70
Table 75: SNP_MEM_xx (0x0084 to 0x00E7)..................................................................................... 70
Table 76: MSL Classification ............................................................................................................... 73
Table 77: Ordering Information ........................................................................................................... 74
Legal
NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS DOCUMENT OR IN ANY OTHER
AGREEMENT, CUSTOMER ACKNOWLEDGES THAT THE PRODUCTS ARE PROVIDED
WITHOUT ANY WARRANTY OF NON-INFRINGEMENT, AND THAT IF ANY LICENSE OR RIGHT
IS REQUIRED TO BE OBTAINED FROM ANY THIRD PARTY, THIS RESPONSIBILITY SHALL
REST SOLELY WITH CUSTOMER.
Product Family
Table 1: DA728x Feature Comparison
Feature
DA7280
DA7281
DA7282
DA7283
OFF state via EN pin
No
No
Yes
Yes
OFF state current
N/A
N/A
5 nA
5 nA
IDLE state current
360 nA
360 nA
680 nA
680 nA
Number of GPI sequence trigger pins
3
1
3
3
I
2
C interface
Yes
Yes
Yes
No
Multiple I
2
C addressing
No
Yes
No
N/A
Operation without a host
No
No
No
Yes