DM164 SITI [Silicon Touch Technology Inc.], DM164 Datasheet - Page 25

• Manufacturer Part Number: DM164
• Description: 8x3-CHANNEL CONSTANT CURRENT LED DRIVER
• Manufacturer: SITI [Silicon Touch Technology Inc.]

d) Power-on Reset Suggestion
The DM164 doesn’t built-in automatic power-on reset function. In order to make sure the
DM164 can work normally after the power-on situation. Users can add an LTH pulse
before normal operation, like Figure 15 shows.
a. D&G Mode First
b. GD Mode First
(DCKPH=H)
(DCKPH=H)
(DCKPH=L)
(DCKPH=L)
MSEL
MSEL
EN_B
VDD
DCK
DCK
GCK
VDD
DCK
DCK
GCK
VDD
LTH
LTH
DIN
DIN
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
POWER-ON
POWER-ON
Figure 15. Power-on Reset Suggestion Timing Diagram
GCK Latencies
At Least 10
GCK Latencies
At Least 10
…
…
GD[383]
D&G[191]
1
1
1
1
GD[382]
…
GD Mode
D&G[190]
2
2
D&G Mode
…
2
2
384
384
GD[0]
192
192
D&G[0]
NORMAL OPERATION
NORMAL OPERATION
D&G[191]
Version:A.002
1
1
GD[383]
…
D&G[190]
1
1
…
2
2
GD[382]
D&G Mode
2
2
GD Mode
192
192
D&G[0]
384
384
…
GD[0]
Latencies
10 GCK
DM164
Latencies
Page 24
10 GCK
…
…
…