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參數(shù)資料
| 型號： | 6275 |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | 8-BIT SERIAL-INPUT, CONSTANTCURRENT LATCHED LED DRIVER |
| 中文描述： | 8位串行輸入，CONSTANTCURRENT鎖存LED驅(qū)動 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 179K |
| 代理商： | 6275 |
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
6275
8-BIT SERIAL-INPUT,
CONSTANT-CURRENT
LATCHED LED DRIVER
4
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
DD
= 5 V (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Supply Voltage Range
V
DD
Operating
4.5
5.0
5.5
V
Under-Voltage Lockout
V
DD(UV)
V
DD
= 0
5 V
3.4
–
4.0
V
Output Current
(any single output)
I
O
V
CE
= 0.7 V, R
EXT
= 250
64.2
75.5
86.8
mA
V
CE
= 0.7 V, R
EXT
= 470
34.1
40.0
45.9
mA
Output Current Matching
(difference between any
two outputs at same V
CE
)
I
O
0.4 V
≤
V
CE(A)
= V
CE(B)
≤
0.7 V:
R
EXT
= 250
R
EXT
= 470
–
–
±
1.5
±
1.5
±
6.0
±
6.0
%
%
Output Leakage Current
I
CEX
V
OH
= 15 V
–
1.0
5.0
μ
A
Logic Input Voltage
V
IH
0.7V
DD
–
V
DD
V
V
IL
GND
–
0.3V
DD
V
SERIAL DATA OUT
Voltage
V
OL
I
OL
= 500
μ
A
–
–
0.4
V
V
OH
I
OH
= -500
μ
4
A
4.6
–
–
V
Input Resistance
R
I
ENABLE Input, Pull Up
150
300
600
k
LATCH Input, Pull Down
100
200
400
k
Supply Current
I
DD(OFF)
R
EXT
= open, V
OE
= 5 V
–
0.8
1.4
mA
R
EXT
= 470
, V
OE
= 5 V
3.5
6.0
8.0
mA
R
EXT
= 250
, V
OE
= 5 V
6.5
11
15
mA
I
DD(ON)
R
EXT
= 470
, V
OE
= 0 V
5.0
10
14
mA
R
EXT
= 250
, V
OE
= 0 V
8.0
16
24
mA
Typical Data is at V
DD
= 5 V and is for design information only.
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