DRV2605L Datasheet, PDF (41/69 Pages) Texas Instruments – DRV2605L 2 to 5.2 V Haptic Driver for LRA and ERM With Effect Library and Smart-Loop Architecture

www.ti.com
DRV2605L
SLOS854C – MAY 2014 – REVISED SEPTEMBER 2014
8.6.14 Audio-to-Vibe Minimum Output Drive (Address: 0x14)
Figure 43. Audio-to-Vibe Minimum Output Drive Register
7
R/W-0
6
R/W-0
5
R/W-0
4
3
ATH_MIN_DRIVE[7:0]
R/W-1
R/W-1
2
R/W-0
1
R/W-0
Table 17. Audio-to-Vibe Minimum Output Drive Register Field Descriptions
0
R/W-1
BIT FIELD
7-0 ATH_MIN_DRIVE[7:0]
TYPE
R/W
DEFAULT DESCRIPTION
0x19
This bit sets the minimum output level that is applied to the actuator drive
engine.
ATH_MIN_DRIVE (%) = ATH_MIN_DRIVE[7:0] / 255 × 100%
8.6.15 Audio-to-Vibe Maximum Output Drive (Address: 0x15)
Figure 44. Audio-to-Vibe Maximum Output Drive Register
7
6
5
4
3
2
1
0
ATH_MAX_DRIVE[7:0]
R/W-1
Table 18. Audio-to-Vibe Maximum Output Drive Register Field Descriptions
BIT FIELD
7-0 ATH_MAX_DRIVE[7:0]
TYPE
R/W
DEFAULT
0xFF
DESCRIPTION
This bit sets the maximum output level that is applied to the actuator drive
engine.
ATH_MAX_DRIVE (%) = ATH_MAX_DRIVE[7:0] / 255 × 100%
8.6.16 Rated Voltage (Address: 0x16)
Figure 45. Rated Voltage Register
7
R/W-0
6
R/W-0
5
R/W-1
4
3
RATED_VOLTAGE[7:0]
R/W-1
R/W-1
2
R/W-1
1
R/W-1
0
R/W-0
BIT FIELD
7-0 RATED_VOLTAGE[7:0]
Table 19. Rated Voltage Register Field Descriptions
TYPE
R/W
DEFAULT
0x3E
DESCRIPTION
This bit sets the reference voltage for full-scale output during closed-loop
operation. The auto-calibration routine uses this register as an input, so this
register must be written with the rated voltage value of the motor before
calibration is performed. This register is ignored for open-loop operation
because the overdrive voltage sets the reference for that case. Any
modification of this register value should be followed by calibration to set
A_CAL_BEMF appropriately.
See the Rated Voltage Programming section for calculating the correct register
value.
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: DRV2605L
Submit Documentation Feedback
41