DRV201_15 Datasheet, PDF (16/29 Pages) Texas Instruments – DRV201 Voice Coil Motor Driver for Camera Auto Focus

DRV201
SLVSB25C – AUGUST 2011 – REVISED JUNE 2015
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FIELD NAME
VCM_CURRENT[9:8]
Table 3. Bit Definitions
VCM current control
00 0000 0000b – 0 mA
00 0000 0001b – 0.1 mA
00 0000 0010b – 0.2 mA
…
11 1111 1110b – 102.2 mA
11 1111 1111b – 102.3 mA
BIT DEFINITION
NOTE
When setting the current in DRV201 both
VCM_CURRENT_MSB and VCM_CURRENT_LSB
registers have to be updated. DRV201 starts updates the
current after LSB register write is completed.
7.6.4 VCM LSB Current Control Register (VCM_Current_LSB) Address – 0x04h
Figure 16. VCM LSB Current Control Register (VCM_Current_LSB) Address – 0x04h Map
DATA BIT
FIELD NAME
READ/WRITE
RESET VALUE
D7
D6
D5
D4
D3
D2
D1
D0
VCM_CURRENT[7:0]
R/W
0
0
0
0
0
0
0
0
FIELD NAME
VCM_CURRENT[7:0]
Table 4. Bit Definitions
VCM current control
00 0000 0000b – 0 mA
00 0000 0001b – 0.1 mA
00 0000 0010b – 0.2 mA
…
11 1111 1110b – 102.2 mA
11 1111 1111b – 102.3 mA
BIT DEFINITION
NOTE
When setting the current in DRV201 both
VCM_CURRENT_MSB and VCM_CURRENT_LSB
registers have to be updated. DRV201 starts updates the
current after LSB register write is completed.
7.6.5 Status Register (Status) Address – 0x05h
Figure 17. Status Register (Status) Address – 0x05h Map⁽¹⁾
DATA BIT
FIELD NAME
READ/WRITE
RESET VALUE
D7
not used
R
0
D6
not used
R/WR
0
D5
not used
R
0
D4
TSD
R
0
D3
VCMS
R
0
D2
VCMO
R
0
D1
UVLO
R
0
D0
OVC
R
0
(1) Status bits are cleared when device changes it’s state from standby to active. If TSD was tripped the device goes into Standby and will
not allow the transition into Active until the device cools down and TSD is cleared.
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