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參數(shù)資料
| 型號： | LM3402MR |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| 中文描述： | 0.94 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | PLASTIC, TSOP-8 |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 431K |
| 代理商： | LM3402MR |
Connection Diagrams
8-Lead Plastic MSOP-8 Package
NS Package Number MUA08A
8-Lead Plastic PSOP-8 Package
NS Package Number MRA08B
Ordering Information
Order Number
LM3402MM
LM3402MMX
LM3402HVMM
LM3402HVMMX
LM3402MR
LM3402MRX
LM3402HVMR
LM3402HVMRX
Package Type
NSC Package Drawing
Supplied As
MSOP-8
MUA08A
1000 units on tape and reel
3500 units on tape and reel
1000 units on tape and reel
3500 units on tape and reel
95 units in anti-static rails
2500 units on tape and reel
95 units in anti-static rails
2500 units on tape and reel
PSOP-8
MRA08B
Pin Descriptions
Pin(s)
1
2
3
Name
SW
BOOT
DIM
Description
Switch pin
Application Information
Connect this pin to the output inductor and Schottky diode.
Connect a 10 nF ceramic capacitor from this pin to SW.
Connect a logic-level PWM signal to this pin to enable/disable the
power FET and reduce the average light output of the LED array.
Connect this pin to system ground.
Set the current through the LED array by connecting a resistor from
this pin to ground.
A resistor connected from this pin to VIN sets the regulator controlled
on-time.
Bypass this pin to ground with a minimum 0.1 μF ceramic capacitor
with X5R or X7R dielectric.
Nominal operating input range is 6V to 42V (LM3402) or 6V to 75V
(LM3402HV).
Connect to ground. Place 4 to 6 vias from DAP to bottom layer ground
plane.
MOSFET drive bootstrap pin
Input for PWM dimming
4
5
GND
CS
Ground pin
Current sense feedback pin
6
RON
On-time control pin
7
VCC
Output of the internal 7V linear
regulator
Input voltage pin
8
VIN
DAP
GND
Thermal Pad
www.national.com
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3402MR/NOPB | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MRX | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 42V 8-Pin HSOP EP T/R |
| LM3402MRX/NOPB | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3403 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Quad Operational Amplifiers |
| LM3403J | 制造商:National Semiconductor 功能描述:3403 NSC'94 S4A1D |
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