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參數資料
| 型號： | AL8805W5-7 |
| 廠商： | DIODES INC |
| 元件分類： | 顯示驅動器 |
| 中文描述： | LED DISPLAY DRIVER, PDSO5 |
| 封裝： | ROHS COMPLIANT, SOT-25, 5 PIN |
| 文件頁數： | 1/16頁 |
| 文件大小： | 590K |
| 代理商： | AL8805W5-7 |
AL8805
HIGH EFFICIENCY 30V 1A BUCK LED DRIVER
AL8805
Document number: DS35030 Rev. 2 - 2
1 of 16
March 2011 Diodes Incorporated
Description
The AL8805 is a step-down DC/DC converter designed to drive
LEDs with a constant current. The device can drive up to 8
LEDs, depending on the forward voltage of the LEDs, in series
from a voltage source of 6V to 30V. Series connection of the
LEDs provides identical LED currents resulting in uniform
brightness and eliminating the need for ballast resistors. The
AL8805 switches at frequency up to 1MHz. This allows the
use of small size external components, hence minimizing the
PCB area needed.
Maximum output current of AL8805 is set via an external
resistor connected between the V
IN
and SET input pins.
Dimming is achieved by applying either a DC voltage or a
PWM signal at the CTRL input pin. An input voltage of 0.4V or
lower at CTRL switches off the output MOSFET simplifying
PWM dimming.
Pin Assignments
4
SET
5
V
IN
SW
1
CTRL
3
GND
2
(Top View)
SOT25
Features
LED driving current up to 1A
Better than 5% accuracy
High efficiency up to 98%
Operating input voltage from 6V to 30V
High switching frequency up to 1MHz
PWM/DC input for dimming control
Built-in output open-circuit protection
SOT25: Available in “Green” Molding Compound (No Br,Sb)
with lead Free Finish/ RoHS Compliant (Note 1)
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html
.
Applications
MR16 lamps
General illumination lamps
Typical Application Circuit
相關PDF資料 |
PDF描述 |
|---|---|
| ALFT-03A-9 | 2 ELEMENT, 4000 uH, GENERAL PURPOSE INDUCTOR |
| ALFT-03A-8 | 2 ELEMENT, 5500 uH, GENERAL PURPOSE INDUCTOR |
| ALFT-03A-3 | 2 ELEMENT, 26000 uH, GENERAL PURPOSE INDUCTOR |
| ALFT-03A-2 | 2 ELEMENT, 45000 uH, GENERAL PURPOSE INDUCTOR |
| ALFT-03A-14 | 2 ELEMENT, 600 uH, GENERAL PURPOSE INDUCTOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AL8806 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:HIGH EFFICIENCY 30V 1.5A BUCK LED DRIVER |
| AL8806EV1 | 功能描述:AL8806 1, Non-Isolated Output LED Driver Evaluation Board 制造商:diodes incorporated 系列:- 零件狀態:有效 電流 - 輸出/通道:1.5A 輸出和類型:1，非隔離 電壓 - 輸出:- 特性:可調光 電壓 - 輸入:9 V ~ 30 V 所含物品:板 使用的 IC/零件:AL8806 標準包裝:1 |
| AL8806EV4 | 功能描述:AL8806 1, Non-Isolated Output LED Driver Evaluation Board 制造商:diodes incorporated 系列:- 零件狀態:有效 電流 - 輸出/通道:1.5A 輸出和類型:1，非隔離 電壓 - 輸出:- 特性:可調光 電壓 - 輸入:9 V ~ 30 V 所含物品:板 使用的 IC/零件:AL8806 標準包裝:1 |
| AL8806EV6 | 制造商:Diodes Incorporated 功能描述:AL8806 Series 1.5A 30 V 1 MHz SMT Buck LED Driver DC-DC Converter Eval-Board |
| AL8806M8P-13 | 功能描述:LED照明驅動器 HIGH EFF 30V 1.5A 6V TO 30V 8 LED 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
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