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| 型号： | AL5802-7 |
| 厂商： | Diodes Inc |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR LINEAR 30V SOT26 |
| 标准包装： | 1 |
| 拓扑： | 线性，PWM |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 电源电压： | 4.5 V ~ 30 V |
| 输出电压： | 0.8 V ~ 30 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-26 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 125°C |
| 其它名称： | AL5802-7DIDKR |
AL5802
SDM10U45LP
V S
AL5802
R S
Fig. 18 Application circuit for LED driver
with reverse polarity protection
BAS40BRW
V S
To remove the potential of incorrect connection of the power supply
damaging the lamp’s LEDs, many systems use some form of
reverse polarity protection.
One solution for reverse input polarity protection is to simply use a
diode with a low V F in-line with the driver/LED combination. The low
V F increases the available voltage to the LED stack and dissipates
less power. A circuit example is presented in Fig. 18 using Diodes
Inc. SBR? (Super Barrier Rectifier) technology. An SDM10U45LP
(0.1A/45V) is shown, providing exceptionally low V F for its package
size of 1mm x 0.6mm, equivalent to an 0402 chip style package.
Other reverse voltage ratings are also available in Diodes’ website
such as the SBR02U100LP (0.2A/100V) or SBR0220LP (0.2A/20V).
Automotive applications commonly use this method for reverse
battery protection.
A second approach, shown in Fig. 19, improves upon the method
shown in Fig. 18. Whereas the method in Fig. 18 protects the light
engine, it will not function until the problem has been diagnosed and
corrected.
The method shown in Fig. 19 not only provides reverse polarity
protection, it also corrects the reversed polarity, allowing the light
engine to function.
The BAS40BRW incorporates four low V F , Schottky diodes into a
single package and allows more voltage available for the LED stack
and dissipates less power that standard rectifier bridges.
AL5802
R S
Fig. 19 Application circuit for LED driver with
assured operation regardless of polarity
AL5802
Document number: DS35516 Rev. 9 - 2
9 of 11
www.diodes.com
March 2014
? Diodes Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AL5802EV1 | 功能描述:AL5802 1, Non-Isolated Output LED Driver Evaluation Board 制造商:diodes incorporated 系列:- 零件状态:有效 电流 - 输出/通道:120mA 输出和类型:1，非隔离 电压 - 输出:- 特性:- 电压 - 输入:4.5 V ~ 30 V 所含物品:板 使用的 IC/零件:AL5802 标准包装:1 |
| AL5802LP4-7 | 功能描述:LED 驱动器 IC 1 输出 线性 PWM 调光 100mA X2-DFN1310-6 制造商:diodes incorporated 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 拓扑:- 内部开关:是 输出数:1 电压 - 供电（最低）:4.5V 电压 -?供电（最高）:30V 电压 - 输出:30V 电流 - 输出/通道:100mA 频率:- 调光:PWM 应用:标牌 工作温度:-40°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:6-XFDFN 裸露焊盘 供应商器件封装:X2-DFN1310-6 标准包装:1 |
| AL5802LP-7 | 功能描述:LED 驱动器 IC 1 输出 线性 PWM 调光 150mA U-DFN1616-6 制造商:diodes incorporated 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 拓扑:- 内部开关:是 输出数:1 电压 - 供电（最低）:4.5V 电压 -?供电（最高）:30V 电压 - 输出:30V 电流 - 输出/通道:150mA 频率:- 调光:PWM 应用:标牌 工作温度:-40°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:6-XFDFN 裸露焊盘 供应商器件封装:U-DFN1616-6 标准包装:1 |
| AL5802LPL-7 | 功能描述:FUNCTIONAL ARRAY U-DFN3030-6 T&R 制造商:diodes incorporated 系列:* 零件状态:有效 标准包装:3,000 |
| AL5802QW6-7 | 功能描述:LED 驱动器 IC 1 输出 线性 PWM 调光 120mA SOT-26 制造商:diodes incorporated 系列:- 包装:剪切带（CT） 零件状态:过期 类型:线性 拓扑:- 内部开关:是 输出数:1 电压 - 供电（最低）:4.5V 电压 -?供电（最高）:30V 电压 - 输出:0.8 V ~ 30 V 电流 - 输出/通道:120mA 频率:- 调光:PWM 应用:标牌 工作温度:-40°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商器件封装:SOT-26 标准包装:1 |
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