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AS3687 数据表(PDF) 21 Page - ams AG

部件名 AS3687
功能描述  Flexible Lighting Management
PDF  55 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS3687 数据表(HTML) 21 Page - ams AG

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AS3687/87XM
Datasheet
www.austriamicrosystems.com/AS3687
1v3-4
20 - 54
Addr: 2Fh
Curr6 current
This register controls the High voltage current sink current.
Bit
Bit Name
Default
Access
Description
7:0
curr6_current
0
R/W
Defines current into Current sink curr6
00h = 0 mA
01h = 0.15 mA
...
FFh = 38.25 mA
curr12 control
Addr: 01h
This register select the mode of the current sinkscontrols High voltage current sink
current.
Bit
Bit Name
Default
Access
Description
1:0
curr1_mode
0
R/W
Select the mode of the current sink curr1
00b = off
01b = on
10b = PWM controlled
11b = LED pattern controlled
3:2
curr2_mode
0
R/W
Select the mode of the current sink curr2
00b = off
01b = on
10b = PWM controlled
11b = LED pattern controlled
Addr: 02h
curr 6 control
This register select the mode of the current sinks CURR6
Bit
Bit Name
Default
Access
Description
7:6
curr6_mode
0
R/W
Select the mode of the current sink CURR6
00b = off
01b = on
10b = PWM controlled
11b = LED pattern controlled
DCDC Control 2
Addr: 22h
This register controls the Step Up DC/DC Converter and low-voltage current sinks
CURR3x.
Bit
Bit Name
Default
Access
Description
0
step_up_res
0
R/W
Gain selection for Step Up DC/DC Converter.
Select 0 if Step Up DC/DC Converter is used with current
feedback (CURR1, CURR2) or if DCDC_FB is used with
current feedback only – only R1, C1 connected
Select 1 if DCDC_FB is used with external resistor divider (2
resistors).
1
skip_fast
0
R/W
Step Up DC/DC Converter output voltage at low loads,
when pulse skipping is active.
0 = Accurate output voltage, more ripple.
1 = Elevated output voltage, less ripple.
2
stepup_prot
1
R/W
Step Up DC/DC Converter protection.
0 = No overvoltage protection.
1 = Overvoltage protection on pin DCDC_FB enabled
voltage limitation =1.25V on DCDC_FB



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