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AS3675 Datasheet(PDF) 25 Page - ams AG

Part # AS3675
Description  Flexible Lighting Management Unit
PDF  81 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3675 Datasheet(HTML) 25 Page - ams AG

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AS3675
Datasheet - D e ta i l e d D e s c r i p t i o n
8.4
Current Sinks
The AS3675 contains general purpose current sinks intended to control RGB LEDs, white LEDs (e.g. backlights) and
can also be used for buzzers or vibrators. All current sinks have an integrated over voltage protection.
CURR1, CURR2 and CURR6 are also used as feedback for the Step Up DC/DC Converter (regulated to 0.5V in this
configuration) see Feedback Selection on page 12.
Current sinks CURR1, CURR2 and CURR6 are high-voltage compliant (15V) current sinks, used e.g., for series of
white LEDs
Current sinks CURR3x (CURR30, CURR31, CURR32 and CURR33) are parallel 5V current sinks, used for back-
lighting, indicator LEDs or RGB LEDs.
Current sinks RGB1, RGB2, and RGB3 are general purpose current sinks e.g. for a fun LED.
Current sinks CURR4x (CURR41, CURR42, and CURR43) are general purpose current sinks.
Table 21. Current Sink Function Overview
Current Sink
Max.
Voltage
(V)
Max.
Current
(mA)
Resolution
Software
Current
Control
Hardware On/Off
Control
Can be assigned to
Audio Controlled
LED Channel
(Bits)
(mA)
CURR1
15.0
38.25
8
0.15
Separate
LED Pattern;
Internal PWM
ch1
CURR2
ch2
CURR6
ch3
CURR30
VBAT
(5.5V)
38.25
(75.6mA
for strobe
if
curr3x_str
obe_high=
1)
80.15
Combined in
Strobe/
Preview
or
Separated
Flash LED Strobe
(CURR1 or
CURR30) &
Preview
(CURR2);
Internal PWM;
LED Pattern
Completely individual
assignment of the
audio channels
ch1,ch2 and ch3 to the
outputs
CURR31
CURR32
CURR33
RGB1
38.25
8
0.15
Separate
LED Pattern;
Internal PWM
ch1
RGB2
ch2
RGB3
ch3
CURR41
38.25
8
0.15
Separate
LED Pattern;
Internal PWM
ch1
CURR42
ch2
CURR43
ch3



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