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參數(shù)資料
| 型號： | ST2221C |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | 16 BIT CONSTANT CURRENT LED DRIVERS |
| 中文描述： | 16位恒流LED驅(qū)動 |
| 文件頁數(shù)： | 7/17頁 |
| 文件大小： | 471K |
| 代理商： | ST2221C |
ST2221C
16-Bit Constant Current LED Drivers
-
6
-
Version
：
1.01
Electrical Characteristics
(VDD = 5.0 V, Ta = 25
°
C unless otherwise noted)
CHARACTERISTIC
Input Voltage “H” Level
SYMBOL
VIH
CONDITION
MIN.
0.7VDD
TYP.
MAX. UNIT
VDD
Input Voltage “L” Level
VIL
GND
0.3VDD
V
Output Leakage Current
IOH
VOH = 9.5 V
1.0
uA
VOL
IOL = 1.0 mA
0.4
Output Voltage ( S - OUT)
VOH
IOH = -1.0 mA
VOUT = 0.7
±
0.25V
REXT = 910
VOUT = 0.7
±
0.25V
REXT = 360
VOUT = 0.7V REXT = 910
VOUT = 0.7V REXT = 360
% / VDD REXT = 470
, Ta = -40 ~ 85
°
C
4.6
V
IOL1
3
6
Output Current (Bit-Bit)
IOL2
3
6
IOL3
5
10
Output Current (Chip-Chip)
IOL4
5
10
%
Supply Voltage Regulation
1.5
5.0
% / V
K
K
Pull-Up Resistor
RIN(up)
150
300
600
Pull-Down Resistor
RIN(down)
100
200
400
IDD(off)1 REXT = OPEN, OUT0~7 = off
IDD(0ff)2 REXT = 470
, OUT0~7 = off
IDD(off)3 REXT = 250
, OUT0~7 = off
IDD(on)1 REXT = 470
, OUT0~7 = on
IDD(on)2 REXT = 250
, OUT0~7 = on
0.3
0.6
3.9
5.5
7.7
Supply Current “OFF”
7.2
10.1
14.1
3.9
5.5
7.7
Supply Current “ON”
7.2
10.1
14.1
mA
Switching Characteristics
(Ta = 25
°
C unless otherwise noted)
CHARACTERISTIC
SYMBOL
CONDITION
VDD=5.0V
VIH=VDD
VIL=GND
REXT=470
1
VL=3.0V
RL=65
CL=13pF
MIN.
TYP.
MAX.
UNIT
SIN-OUTn
150
300
LATCH-OUTn
150
300
ENABLE-OUTn
150
300
Propagation
Delay Time
(“L” to “H”)
CLK-SOUT
tp
LH
15
20
ns
SIN-OUTn
30
60
LATCH-OUTn
30
60
ENABLE-OUTn
30
60
Propagation
Delay Time
(“H” to “L”)
CLK-SOUT
tp
HL
15
20
ns
Output Current Rise Time
t
or
t
of
170
340
ns
Output Current Fall Time
20
40
ns
1
Delay time tp
LH
and Rise Time tor will both increase as the Rext value increased.
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