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參數(shù)資料
| 型號(hào)： | MBI5170CDW |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-Bit Constant Current LED Sink Driver with Gain Control |
| 中文描述： | 8位恒流增益控制LED驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 21/24頁(yè) |
| 文件大小： | 400K |
| 代理商： | MBI5170CDW |
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MBI5170 8-Bit Constant Current LED Sink Driver with Gain Control
August 2004, VA.00
- 21 -
25
℃
55
℃
85
℃
Applic ation Information
Package Power Dissipation (P
D
)
The maximum allowable package power dissipation is determined as P
D
(max) = (Tj
–
Ta) / R
th(j-a)
. When 8 output
channels are turned on simultaneously, the actual package power dissipation is
P
D
(act) = (I
DD
x V
DD
) + (I
OUT
x Duty x V
DS
x 8)
Therefore, to keep P
D
(act)
≤
P
D
(max), the allowable maximum output current as a function of duty cycle is
I
OUT
= { [ (Tj
–
Ta) / R
th(j-a)
]
–
(I
DD
x V
DD
) } / V
DS
/ Duty / 8
where Tj = 150
°
C.
Condition
：
V
DS
= 1.0V, V
DD
= 5.0V, 8 output channels active, Ta is listed in the
legend below.
Device Type
R
th(j-a)
(
°
C/W)
CN
61.65
CD
85.82
CDW
61.63
CP
94.91
Note
Iout vs. Duty Cycle at Rth = 61.65 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
CN Device Type
Iout vs. Duty Cycle at Rth = 61.63 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
CDW Device Type
Iout vs. Duty Cycle at Rth = 94.91 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
Iout vs. Duty Cycle at Rth = 85.82 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
Duty Cycle
5
5
6
6
7
7
8
8
9
9
1
I
CD Device Type
CP Device Type
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|---|---|
| MBI5170CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Constant Current LED Sink Driver with Gain Control |
| MBI5170CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Constant Current LED Sink Driver with Gain Control |
| MBI5171 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Constant Current LED Driver with LED Error Detection and Run-Time Current Adjustment |
| MBI5171CD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Constant Current LED Driver with LED Error Detection and Run-Time Current Adjustment |
| MBI5171CDW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Constant Current LED Driver with LED Error Detection and Run-Time Current Adjustment |
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