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參數(shù)資料
| 型號(hào)： | LX1992CDU |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | High Efficiency LED Driver |
| 中文描述： | LED DISPLAY DRIVER, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件頁(yè)數(shù)： | 9/11頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | LX1992CDU |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
2000
Rev. 1.1b, 2005-03-03
W
M
.
C
LX1992
High Efficiency LED Driver
P
RODUCTION
D
ATA
S
HEET
TM
C H A R A C T E R I S T I C C U R V E S
Figure 5: V
OUT
and Inductor Current Waveforms.
Channel 1: V
OUT
(AC coupled; 200mV/div)
Channel 2: Inductor Current (100mA/div.)
Configuration: V
IN
= 3.0V, V
OUT
= 13.0V, I
IN
= 65mA
Figure 6: V
OUT
and Inductor Current Waveforms.
Channel 1: V
OUT
(AC coupled; 100mV/div)
Channel 2: Inductor Current (100mA/div.)
Configuration: V
IN
= 3.0V, V
OUT
= 13.7V, I
IN
= 120mA
0
1
2
3
4
5
0
20
40
60
80
100
120
140
160
D
Figure 7: Gate Drive Voltage vs. Drive Current
at T = 25
C.
50%
60%
70%
80%
90%
0
2
4
8
10
12
14
16
18
6
E
Figure 8: Efficiency vs. LED Output Current.
Configuration: V
IN
= 3.0V, L = 47
μ
H, R
CS
= 4K
Note: Data taken from LXE1992 Evaluation Board
50%
60%
70%
80%
90%
100%
0
2
4
6
8
12
14
16
18
20
22
24
L10
E
Figure 9: Efficiency vs. LED Output Current.
Configuration: V
IN
= 5.0V, L = 47
μ
H, R
CS
= 4K
Note: Data taken from LXE1992 Evaluation Board
Efficiency Measurement Hint
: When doing an efficiency
evaluation using the LX1992 Evaluation Board, VPOT should
be driven by a separate voltage supply to account for losses
associated with the onboard reference (i.e., the 1.25V shunt
regulator and 1K
resistor). This circuit will have VBAT -
1.25V across it and at the higher input voltages the 1K
resistor could have as much as 4mA through it. This shunt
regulator circuitry will adversely effect the overall efficiency
measurement and is not normally used in an application.
Therefore it should not be considered when measuring
efficiency.
C
H
A
R
T
S
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LX1992-CDU | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED Driver |
| LX1992CDU-TR | 制造商:Microsemi Corporation 功能描述:LED DRVR 4SEGMENT 1.6V TO 6V 8MSOP IN TUBES - Bulk |
| LX1992CLM | 功能描述:IC LED DRIVR WT/CLR BCKLGT 8-MLP RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁(yè)面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LX1992-CLM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED Driver |
| LX1992EVALKIT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED Driver |
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