- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361100 > NCP5005SNT1G (ON SEMICONDUCTOR) Compact Backlight LED Boost Driver PDF資料下載
參數(shù)資料
| 型號： | NCP5005SNT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | Compact Backlight LED Boost Driver |
| 中文描述： | LED DISPLAY DRIVER, PDSO5 |
| 封裝： | LEAD FREE, TSOP-5 |
| 文件頁數(shù)： | 8/23頁 |
| 文件大?。?/td> | 234K |
| 代理商： | NCP5005SNT1G |
NCP5005
http://onsemi.com
8
Output Current Range SetUp
The current regulation is achieved by means of an external sense resistor connected in series with the LED string.
CONTROLLER
GND
3
FB
GND
1
V
out
D1
L
Q1
Figure 8. Output Current Feedback
V
bat
L1
22 H
R1
x
The current flowing through the LED creates a voltage
drop across the sense resistor R1. The voltage drop is
constantly monitored internally, and maximum peak
current allowed in the inductor is set accordingly in order
to keep constant this voltage drop (and thus the current
flowing through the LED). For example, should one need
a 10 mA output current, the sense resistor should be sized
according to the following equation:
Feedback Threshold
Iout
R1
200 mV
10 mA
20
(eq. 9)
A standard 5% tolerance resistor, 22 SMD device,
yields 9.09 mA, good enough to fulfill the back light
demand. The typical application schematic diagram is
provided in Figure 9.
Figure 9. Basic Schematic Diagram
GND
EN
2
3
1
5
V
out
V
bat
NCP5005
L1
22 H
V
bat
C1
4.7 F
GND
D6
D5
D4
D3
U1
4
D2
GND
FB
GND
R1
22
D1
MBR0530
GND
C2
1.0 F
Pulse
LWT67C LWT67C LWT67C LWT67C LWT67C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP5005 | Compact Backlight LED Boost Driver(背光LED升壓驅(qū)動器) |
| NCP500SN185T1G | 150 mA CMOS Low Noise Low−Dropout Voltage Regulator |
| NCP500SN18T1G | 150 mA CMOS Low Noise Low−Dropout Voltage Regulator |
| NCP500SN26T1G | 150 mA CMOS Low Noise Low−Dropout Voltage Regulator |
| NCP500SN27T1G | 150 mA CMOS Low Noise Low−Dropout Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP5006 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators |
| NCP5006_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Compact Backlight LED Boost Driver |
| NCP5006EVB | 功能描述:LED 照明開發(fā)工具 ANA WHITE LED DRIVER EVB RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| NCP5006SNT1 | 功能描述:LED照明驅(qū)動器 White LED Backlight RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NCP5006SNT1G | 功能描述:LED照明驅(qū)動器 White LED Backlight Boost RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。