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參數(shù)資料
| 型號(hào)： | LM3401MMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Hysteretic PFET Controller for High Power LED Drive |
| 中文描述： | LED DISPLAY DRIVER, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大?。?/td> | 324K |
| 代理商： | LM3401MMX |
This is the estimated amount of LED current variation over the
input voltage range. If the minimum input voltage was below
17V, the LED current variation would be calculated using the
100% duty cycle equation.
TABLE 1. Design Example Summary
Parameter
R1
Value
290 m
5.6 k
Result
690 mA DC
Comment
1%
R2
±22.4 mV hysteresis
V
HYS
= 112 mV(adjustable)
219 kHz min
L1
f
sw
I
ripple
I
LED_PK
PFET
33 μH, >804 mA
-
1MHz typical
-
227 mA p-p
worst case
-
804 mA
worst case
40V, 1.8A, 130 m
46 k
2.2 μF, 50V ceramic
40V, 1A
±6.1%
1.6%
108°C
1.0 μF, 50V
R3
0.95A minimum peak current limit
adjustable
C1
D1
>345 mA rms
±42 mA max variation
11 mA variation
LED ripple reduction
Schottky
part-to-part
vs VIN
worst case
optional
Accuracy
Regulation
Ta_max
C2
15
www.national.com
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3401MMX/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 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 |
| LM3401MMX/S7002590 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM3401-MR16DEMO/NOPB | 功能描述:LED 照明開發(fā)工具 LM3401-MR16DEMO 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: |
| LM3401N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM3402 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:0.5A Constant Current Buck Regulator for Driving High Power LEDs |
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