參數(shù)資料
型號: 6277
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> 203K
代理商: 6277
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
6277
8-BIT SERIAL-INPUT,
CONSTANT-CURRENT
LATCHED LED DRIVER
4
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
H/L
= 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 to 5 V
3.4
4.0
V
Output Current
(any single output)
I
O
V
CE
= 1.0 V, R
EXT
= 160
100
120
140
mA
V
CE
= 0.4 V, R
EXT
= 470
34
42
48
mA
Output Current Matching
(difference between any
two outputs at same V
CE
)
I
O
0.4 V
V
CE(A)
= V
CE(B)
1.0 V:
R
EXT
= 160
R
EXT
= 470
±
1.5
±
1.5
±
6.0
±
6.0
%
%
Output Leakage Current
I
CEX
V
OH
= 20 V
1.0
5.0
μ
A
Logic Input Voltage
V
IH
0.7V
DD
V
V
IL
0.3V
DD
V
SERIAL DATA OUT Voltage
(SDO
1
& SDO
2
)
V
OL
I
OL
= 1.0 mA
0.4
V
V
OH
I
OH
= -1.0 mA
4.6
V
Input Resistance
R
I
ENABLE input, pull up
150
300
600
k
LATCH & HIGH/LOW inputs, pull down
100
270
400
k
Supply Current
I
DD(OFF)
R
EXT
= open, V
OE
= 5 V
0.8
1.6
mA
R
EXT
= 470
, V
OE
= 5 V
3.5
6.5
9.5
mA
R
EXT
= 160
, V
OE
= 5 V
14
17
22
mA
I
DD(ON)
R
EXT
= 470
, V
OE
= 0 V
5.0
10
15
mA
R
EXT
= 160
, V
OE
= 0 V
20
27
40
mA
Typical Data is at V
DD
= 5 V and is for design information only.
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