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參數(shù)資料
| 型號(hào)： | TLC5902HTQFP |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | LED DRIVER |
| 中文描述： | LED驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 17/22頁(yè) |
| 文件大?。?/td> | 306K |
| 代理商： | TLC5902HTQFP |
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TLC5902
LED DRIVER
SLLS382 – DECEMBER 1999
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
0
10
20
30
40
50
60
70
80
90
0.1
1
10
NOTE: The output current is at 16 bit output.
When 8-bit output, it will be the current of sum of two
outputs. This sum current should be set up with the range
of 10 mA to 120 mA. The resistor, RIRF, should be located
as close as possible to IREF terminal to eliminate the noise
influence.
Conditions : V
O
1 V, V
(IREF)
1.24 V
I
OL(C)
(mA)
V
(IREF)
(V)
R
(IREF)
(k
47
I
OL(C)
(mA)
38
R
(IREF)
(k )
I
R(IREF) – k
Figure 4. Current on Constant Current Output vs External Resistor
RIREF= 4.70 k
0
1.0
0.2
0
0.4
0.6
0.8
100
10
0.1
0.3
0.5
0.7
0.9
20
30
40
50
60
70
80
90
RIREF= 2.35 k
RIREF= 1.57 k
RIREF= 1.18 k
RIREF= 940
RIREF= 780
RIREF= 670
RIREF= 590
Minimum voltage applied
VO – Output Voltage –V
I
NOTE: VCCLOG = VCCANA = PVCC = 5 V, TA = 25
°
C.
Figure 5. Current on Constant Current Output vs Voltage Applied To Constant Current Output Terminal
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
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