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AS3691 Datasheet(PDF) 6 Page - ams AG

Part # AS3691
Description  4 Precision 400mA Current Sources for RGB and Single Color Leds
PDF  23 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3691 Datasheet(HTML) 6 Page - ams AG

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AS3691
Datasheet
www.austriamicrosystems.com (ptr)
Revision 2.3
5 - 22
Pin Number
QFN
Package
Pin Number
ePTSSOP
Package
Pin Name
Type
Description
7
16
ON4
DI
Current source CURR4 control; internal pullup
resistor to VREG (can be left open, if CURR4 is
always switched on)
High … 100% Current
Low … 5% Current
8
17
UV4
AO
Automatic supply regulation for CURR4; if not
used, leave open
9
18
TEST
AI
Digital Test input; Leave open or connect to
VSS; internal pulldown to VSS
10
19
UV3
AO
Automatic supply regulation for CURR3; if not
used, leave open
11
20
ON3
DI
Current source CURR3 control; internal pullup
resistor to VREG (can be left open, if CURR3 is
always switched on)
High … 100% Current
Low … 5% Current
12
21
RES3
AI/O
Connect to current set resistor R3
13
22
CURR3
AI/O
Current Source 3 Output
14
23
RFB3
AI
Connect to current set resistor R3 directly at
resistor itself
15
24
VREG
S
Shunt regulator supply; connect to Rvdd and
Cvdd
16
1
RFB2
AI
Connect to current set resistor R2 directly at
resistor itself
17
2
CURR2
AI/O
Current Source 2 Output
18
3
RES2
AI/O
Connect to current set resistor R2
19
4
ON2
DI
Current source CURR2 control; internal pullup
resistor to VREG (can be left open, if CURR2 is
always switched on)
High … 100% Current
Low … 5% Current
20
5
UV2
AO
Automatic supply regulation for CURR2; if not
used, leave open
21
6
VSS
S
VSS Supply connection
22
7
UV1
AO
Automatic supply regulation for CURR1; if not
used, leave open
23
8
ON1
DI
Current source CURR1 control; internal pullup
resistor to VREG (can be left open, if CURR1 is
always switched on)
High … 100% Current
Low … 5% Current
24
9
RES1
AI/O
Connect to current set resistor R1
Pad
Pad
VSS
S
VSS Supply connection; add as many vias to
ground plane as possible



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