Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- PINOUT INFORMATION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- TIMING REQUIREMENTS
- TYPICAL CHARACTERISTICS
- SYSTEM DIAGRAMS
- APPLICATION INFORMATION
- ECCENTRIC ROTATING MASS MOTORS (ERM)
- LINEAR RESONANCE ACTUATORS (LRA)
- AUTO-RESONANCE ENGINE FOR LRA
- OPEN LOOP OPERATION FOR LRA
- SMART LOOP ARCHITECTURE
- AUTO CALIBRATION
- WAVEFORM LIBRARIES
- WAVEFORM SEQUENCER
- LIBRARY PARAMETERIZATION
- REAL-TIME PLAYBACK (RTP) MODE
- MULTI-MODE INPUT PIN (IN/TRIG)
- DEVICE ENABLE
- CONSTANT VIBRATION STRENGTH
- EDGE RATE CONTROL
- CAPACITOR SELECTION
- MODES OF OPERATION
- BLOCK DIAGRAM
- GENERAL I2C OPERATION
- SINGLE-BYTE AND MULTIPLE-BYTE TRANSFERS
- SINGLE-BYTE WRITE
- MULTIPLE-BYTE WRITE AND INCREMENTAL MULTIPLE-BYTE WRITE
- SINGLE-BYTE READ
- MULTIPLE-BYTE READ
- REGISTER MAP
- DEVICE PROGRAMMING
- WAVEFORM LIBRARY EFFECTS LIST
- PCB LAYOUT RECOMMENDATIONS
- Revision History
DRV2605
SLOS825B –DECEMBER 2012–REVISED JANUARY 2014
www.ti.com
Status (Address: 0x00)
Bit 7 6 5 4 3 2 1 0
Function DeviceID[2] DeviceID[1] DeviceID[0] Diag_Result Watchdog_Status OverTemp OC_Detect
Type RO RO RO RO RO RO RO
Default 1 0 1 0 0 0 0
DeviceID[2:0] Device identifier. This indicates the part number to the user. The user software can
ascertain the device capabilities by reading this register.
4: DRV2604 (does not contain licensed ROM library)
3: DRV2605 (contains licensed ROM library)
Diag_Result This flag stores the result of the auto calibration routine and the diagnostic routine. The flag
contains the result for whichever routine was executed last. The flag clears upon read. Test
result is not valid until the GO bit self-clears at the end of the routine.
Auto Calibration
0: Auto-Calibration Passed (Optimum result converged)
1: Auto-Calibration Failed (Result did not converge)
Diagnostic
0: Actuator is functioning normally
1: Actuator is not present, shorted, timing out, or giving out-of-range back-EMF
Feedback_Status Contains status for the feedback controller. This indicates when the ERM back-EMF has
been zero for > ~10 ms for ERM mode, and indicates when the LRA frequency tracking
has lost frequency lock in LRA mode. This bit is for debug purposes only, and may
sometimes be set under normal operation when extensive braking periods are used. This
bit will clear upon read.
0: Feedback controller has not timed out
1: Feedback controller has timed out
OverTemp Latching over-temperature detection flag. The device will shut itself down if it becomes too
hot. Clears upon read.
0: Device is functioning normally
1: Device has exceeded the temperature threshold
OC_Detect Latching over-current detection flag. The device will shut itself down if the load impedance
is below the load impedance threshold, and will periodically try to restart itself until the
impedance is above the threshold.
0: No over-current event has been detected
1: Over-current even has been detected
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