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AS3695C bảng dữ liệu(PDF) 11 Page - ams AG

tên linh kiện AS3695C
Giải thích chi tiết về linh kiện  16 channel white LED controller for LCD backlight
PDF  40 Pages
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nhà sản xuất  AMSCO [ams AG]
Trang chủ  http://www.ams.com
Logo AMSCO - ams AG

AS3695C bảng dữ liệu(HTML) 11 Page - ams AG

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AS3695C
austriamicrosystems
www.austriamicrosystems.com
Rev 1.11 / 2010-12-08
10 - 39
10...200mV
11...VDAC/2
5:2
SHORTvoltage
Trigger voltage for SHORT LED detection
0000...2V
0001...3V
0010...4V
0011...5V
0100...6V
0101...7V
0110...8V
0111...9V
1000...10V
1001...11V
1010...12V
1011 to 1111 ...do not use
0000
r/w
1
SHORTen
Enable short LED detection
0...SHORT detection OFF
1...SHORT detection ON
0
r/w
0
OPENen
Enable open LED detection
0...OPEN detection OFF
1...OPEN detection ON
0
r/w
RegAddr: 0x05
Feedback
Bit
Name
Description
Default
Acc
ess
7:6
Not used
00
r/w
5:4
FBvoltage
Feedback regulator trip voltage.This voltage has to be
adjusted if current is larger than 70mA or VDAC is higher than
0.25V
00...0.6V
01...0.8V
10...1.0V
11...V-DAC + 0.35V
00
r/w
3
FBboost
Feedback boost option.
FUNCTION DISABLED
0
r/w
2
TrType
Type of external transistor
0...external FET. Base current compensation is off
1...external BJT. Base current compensation is on.
0
r/w
1
Not used
0
r/w
0
FBen
Enable Feedback function for all current outputs.
1...Feedback function enabled
0...Feedback function disabled
Note: If a current output is disabled its Feedback function is
automatically disabled.
0
r/w
RegAddr: 0x06
FB_SEL1
Bit
Name
Description
Default
Acc
ess
7:0
FBsel 1 - 8
Select FB-channel for current outputs 1 to 8
0...select FB channel FB1
1... select FB channel FB2
00000000
r/w
RegAddr: 0x07
FB_SEL2
Bit
Name
Description
Default
Acc
ess
7:0
FBsel 9 - 16
Select FB-channel for current outputs 9 to 16
0...select FB channel FB1
1... select FB channel FB2
00000000
r/w
RegAddr: 0x08
CURRctrl
Bit
Name
Description
Default
Acc
ess
7:6
Not used.
00
r/w
5:4
DACref
DAC reference voltage
00...500mV
01...600mV
10...700mV
11...800mV this reference is used at factory trimming
00
r/w
3:2
Not used
00
r/w
1:0
SLEWrate
Select slew rate of output drivers
00...9us
01...6us
00
r/w



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