DRV2604L Datasheet, PDF (39/73 Pages) Texas Instruments – DRV2604L 2- to 5.2-V Haptic Driver for LRA and ERM with Internal Memory and Smart-Loop Architecture

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DRV2604L
SLOS866D – MAY 2014 – REVISED JUNE 2015
8.6.1 Status (Address: 0x00)
Figure 33. Status Register
7
RO-1
6
DEVICE_ID[2:0]
RO-1
BIT FIELD
7-5 DEVICE_ID[2:0]
4 Reserved
3 DIAG_RESULT
2 Reserved
1 OVER_TEMP
0 OC_DETECT
5
RO-0
4
Reserved
3
DIAG_RESULT
RO-0
2
Reserved
Table 3. Status Register Field Descriptions
1
OVER_TEMP
RO-0
0
OC_DETECT
RO-0
TYPE
RO
DEFAULT
6
DESCRIPTION
Device identifier. The DEVICE_ID bit indicates the part number to the user.
The user software can ascertain the device capabilities by reading this
register.
3: DRV2605 (contains licensed ROM library, does not contain RAM)
4: DRV2604 (contains RAM, does not contain licensed ROM library)
6: DRV2604L (low-voltage version of the DRV2604 device)
7: DRV2605L (low-voltage version of the DRV2605 device)
RO
0
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 mode:
0: Auto-calibration passed (optimum result converged)
1: Auto-calibration failed (result did not converge)
Diagnostic mode:
0: Actuator is functioning normally
1: Actuator is not present or is shorted, timing out, or giving
out–of-range back-EMF
RO
0
RO
0
Latching overtemperature detection flag. If the device becomes too hot, it
shuts down. This bit clears upon read.
0: Device is functioning normally
1: Device has exceeded the temperature threshold
Latching overcurrent detection flag. If the load impedance is below the
load-impedance threshold, the device shuts down and periodically attempts
to restart until the impedance is above the threshold.
0: No overcurrent event is detected
1: Overcurrent event is detected
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