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參數(shù)資料
| 型號： | LM3407 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs |
| 中文描述： | 350毫安，恒流輸出浮點高功率LED的降壓開關(guān)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 321K |
| 代理商： | LM3407 |
Connection Diagram
30046602
Top View
8-Lead Plastic eMSOP-8 Package
Mini SOIC Exp Pad (MUY08A)
Ordering Information
Order Number
LM3407MY
LM3407MYX
Package Type
eMSOP-8
NSC Package Drawing
MUY08A
Supplied As
1000 Units on Tape and Reel
3500 Units on Tape and Reel
Pin Descriptions
Pin(s)
1
Name
ISNS
Description
LED Current Sense pin Connect resistor R
ISNS
from this pin to ground for LED current sensing. The current
sensing resistor should be placed close to this pin.
PWM Dimming Input pin Applying logic level PWM signal to this pin controls the average brightness of the
LED string.
Device Enable pin
Applying logic high to this pin or leaving this pin open enables the switcher. When
this pin is pulled low, the switcher is disabled and will enter low power shutdown
mode.
Switching Frequency
Setting pin
Input Voltage pin
The input voltage should be in the range of 4.5V to 30V.
Internal Regulator
Output pin
of 1μF. High quality X5R or X7R ceramic capacitor is recommended.
Device Ground pin
This pin should be connected to the system ground.
Drain of N-MOSFET
Switch
Thermal Pad
The bottom pad should be connected to ground. For good thermal performance,
place 4 to 6 thermal vias from EP to bottom layer PCB ground plane.
Application Information
2
DIM
3
EN
4
FS
Connect resistor R
FS
from this pin to ground to set the switching frequency.
5
6
VIN
VCC
This output pin should be bypassed by a ceramic capacitor with a minimum value
7
8
GND
LX
Connect this pin to the output inductor and anode of the Schottky diode.
EP
GND
www.national.com
2
L
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| LM3407MY | 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs |
| LM3407MYX | 350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3407_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs |
| LM3407_11 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM3407 350 mA, Constant Current Output Floating Buck Switching Converter |
| LM3407EVAL | 功能描述:BOARD EVALUATION FOR LM3407 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - LED 驅(qū)動器 系列:PowerWise® 標準包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點:可調(diào)光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關(guān)產(chǎn)品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| LM3407EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM3407 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM3407MY | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4.5V to 30V 8-Pin MSOP EP T/R 制造商:Texas Instruments 功能描述:BUCK SW CONVERTER, 350MA, POWERWISE |
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