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AS3606 Datasheet(PDF) 53 Page - ams AG

Part No. AS3606
Description  System PMU with HV Back Light Driver
Download  71 Pages
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Maker  AMSCO [ams AG]
Homepage  http://www.ams.com
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AS3606 Datasheet(HTML) 53 Page - ams AG

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www.austriamicrosystems.com
Revision 1.03
52 - 70
AS3606 AS3607 2v2
Data Sheet - R e g i s t e r D e f i n i t i o n
Table 41. BOOST_Cntr2 Register
Name
Base
Default
BOOST_Cntr2
2-wire serial
00h
Offset: 1Bh-2
DCDC step-up Control Register 2
This is an extended register and needs to be enabled by writing 010b to Reg. 1Ch first.
This register is reset at a VDD27-POR or XRES input.
Bit
Bit Name
Default
Access
Bit Description
7:3
SU_IFB<4:0>
0 0000
R/W
Defines the tuning current at pin FBSU.
0x00: 0µA
0x01: 1µA
0x02: 2µA
...
0x1F: 31µA
2
SU_CURRLIM
0
R/W
Selects the DCDC step-up converter coil current limit
0: normal current limit
1: current limit increased by about 50%
1
SU_GAIN
0
R/W
DCDC step-up converter feedback gain is selected automatically depending
on current or voltage feedback mode. Setting this bit to “1” will choose the
alternative feedback gain setting.
0
SU_FREQ
00
R/W
Defines the DCDC step-up switching frequency
0: 1MHz
1: 500kHz
Table 42. CURR1 Register
Name
Base
Default
CURR1
2-wire serial
00h
Offset: 1Bh-3
Current Sink 1 Register
This is an extended register and needs to be enabled by writing 011b to Reg. 1Ch first.
This register is reset at a VDD27-POR or XRES input.
Bit
Bit Name
Default
Access
Bit Description
7:0
ICURR1<7:0>
0x00
R/W
Sets the current for current sink 1 in 255 steps with 140.626µA stepsize
0x00: Current sink 1 switched off
0x01: 0.15 mA
0x02: 0.30 mA
0x03: 0.45 mA
..
0xFE: 38,10 mA
0xFF: 38.25 mA


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