TLC5916_10 Datasheet, PDF (4/30 Pages) Texas Instruments – 8-BIT CONSTANT-CURRENT LED SINK DRIVERS

TLC5916, TLC5917
8-BIT CONSTANT-CURRENT LED SINK DRIVERS
SLVS695A – JUNE 2007 – REVISED MARCH 2008
Timing Diagram
CLK
01 2345 67
OE(ED2) 1
LE(ED1) 0
SDI
OUT0
OUT1
OUT2
OUT3
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off
on
off
on
off
on
off
on
off
OUT7
on
SDO
Don't care
Figure 1. Normal Mode
Truth Table in Normal Mode
CLK
↑
↑
↑
↓
↓
LE(ED1)
H
L
H
X
X
OE(ED2)
L
L
L
L
H
SDI
Dn
Dn + 1
Dn + 2
Dn + 3
Dn + 3
OUT0...OUT7
Dn...Dn – 7
No change
Dn + 2...Dn – 5
Dn + 2...Dn – 5
Off
SDO
Dn – 7
Dn – 6
Dn – 5
Dn – 5
Dn – 5
The signal sequence shown in Figure 2 makes the TLC5916/TLC5917 enter Current Adjust and Error Detection
Mode.
1
2
3
4
5
CLK
OE(ED2) ¹
0
1
1
1
LE(ED1) ⁰
0
0
1
0
Figure 2. Switching to Special Mode
4
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