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A6280 Datasheet(PDF) 5 Page - Allegro MicroSystems

Part No. A6280
Description  3 Bit Constant Current LED Driver with PWM Control
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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A6280 Datasheet(HTML) 5 Page - Allegro MicroSystems

 
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3 Bit Constant Current LED Driver with PWM Control
A6280
5
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
15 16
30
Clock
Serial Data In
Serial Data Out
Latch Enable In
Latch Enable Out
D30
D28 D27 D26 D25 D24 D23 D22
D8 D7
D0
D30
Don’t Care
tw(CLK)
t
SU(D)
tH(D)
t
P(SDO)
tSU(LE)
tH(LE)
tP(LE)
D29
PWM Counter
Output Enable In
Output Enable Out
OUT0
Luminance Data= 0
OUT1
Luminance Data= 2
OUT2
Luminance Data= 1023
tP(OE)
t
w(OE)
t
P(OUT)
Clock IN
t0
0
1
2
1023
0
0
X
T1
T2
TN
tP(OUT)
1
2
tP(OUT)
tP(OUT)
01
2
3
4
5
6
7
8
Figure 2. Shift Register Timing
Figure 3. PWM Counter and Output Timing
Timing Diagram


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