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點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DM163
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
Version: A.004
Page
8
AC Characteristics (VDD = 3.3 V, Ta = 25°C)
CHARACTERISTIC
SYMBOL
CONDITION
MIN.
TYP.
MAX.
UNIT
DCK Frequency
FDCK
Cascade operation
⎯
⎯
20
MHz
DCK pulse duration
twh / twl
High or low level
15
⎯
⎯
ns
DCK rise/fall time
tr / tf
⎯
⎯
⎯
20
ns
GCK Frequency
FGCK
Cascade operation
1
⎯
20
MHz
GCK pulse duration
twh / twl
High or low level
15
⎯
⎯
ns
GCK rise/fall time
tr / tf
⎯
⎯
⎯
20
ns
RST_B pulse duration
twrst_b
Low level
100
⎯
⎯
ns
Set-up Time for SIN
tsetup(D)
Before DCK rising edge
2
⎯
⎯
ns
Hold Time for SIN
thold(D)
After DCK rising edge
5
⎯
⎯
ns
Set-up Time for DCK
tsetup(L)
Before LAT_B falling edge
5
⎯
⎯
ns
LAT_B Pulse Width
tw LAT
⎯
7
⎯
⎯
ns
Set-up Time for LAT_B
Tsetup(G)
Before GCK rising edge
23
⎯
⎯
ns
Set-up Time for SELBK
Tsetup(S)
Before DCK rising edge
9
⎯
⎯
ns
Hold Time for SELBK
Thold(S)
After DCK rising edge
1
⎯
⎯
ns
Electrical Characteristics (VDD = 5.0 V, Ta = 25°C unless otherwise noted)
CHARACTERISTIC
SYMBOL
CONDITION
MIN.
TYP.
MAX.
UNIT
Input Voltage “H” Level
VIH
⎯
0.8 VDD
⎯
VDD
Input Voltage “L” Level
VIL
⎯
GND
⎯
0.2 VDD
V
Output Leakage Current
Ileak
VOH = 17 V
⎯
⎯
± 0.1
uA
VOL
IOL = 2 mA
⎯
⎯
0.2
Output Voltage ( SOUT)
VOH
IOH = -2 mA
4.8
⎯
⎯
V
Output Current
(Channel-Channel)
IOL1
VOUT = 1.0V
REXT = 2.6k
Ω
⎯
± 3
± 5
%
Output Current
(Chip-Chip)
IOL3
VOUT = 1.0V
REXT = 2.6k
Ω
⎯
± 4
± 10
%
Supply Voltage
Regulation
% / VDD
REXT = 3k
Ω
⎯
⎯
2
% / V
IDD, analog VDD=5V, REXT = 1k
Ω
⎯
42.2
43.4
Supply Current
1
IDD, digital VDD=5V, Cload=2pF,
DCK=GCK=1MHz
⎯
1
1.5
mA
1 I
LED excluded.
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