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AS3676 데이터시트(PDF) 25 Page - ams AG

부품명 AS3676
상세설명  Flexible Lighting Management
PDF  92 Pages
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제조업체  AMSCO [ams AG]
홈페이지  http://www.ams.com
Logo AMSCO - ams AG

AS3676 데이터시트(HTML) 25 Page - ams AG

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AS3676
Datasheet - D e ta i l e d D e s c r i p t i o n
8.4
Current Sinks
The AS3676 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 (26V) 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.
8.4.1 Unused Current Sinks
Unused current sinks can be left open or used as a ADC input (see Analog-to-Digital Converter on page 65).
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
26.0
38.25
8
0.15
Separate
LED Pattern;
Internal PWM;
external PWM at
GPIO1/DLS
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;
external PWM at
GPIO1/DLS
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;
external PWM at
GPIO1/DLS
ch1
RGB2
ch2
RGB3
ch3
CURR41
38.25
8
0.15
Separate
LED Pattern;
Internal PWM;
external PWM at
GPIO1/DLS
ch1
CURR42
ch2
CURR43
ch3



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