- 您现在的位置：买卖IC网 > Datasheet目录310 > AL8806MP8-13 (Diodes Inc)IC LED DVR CONS CURR 8MSOP Datasheet资料下载
参数资料
| 型号： | AL8806MP8-13 |
| 厂商： | Diodes Inc |
| 文件页数： | 9/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR CONS CURR 8MSOP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 频率： | 1MHz |
| 电源电压： | 6 V ~ 30 V |
| 输出电压： | 30V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 8-MSOP-EP |
| 包装： | 标准包装 |
| 其它名称： | AL8806M8P-13DIDKR AL8806M8P-13DIDKR-ND AL8806MP8-13DIDKR |
AL8806
Application Information (cont.)
Soft Start
The AL8806 does not have in-built soft-start action – this provides very fast turn off of the output the stage improving PWM dimming accuracy;
nonetheless, adding an external capacitor from the CTRL pin to ground will provide a soft-start delay. This is achieved by increasing the time taken
for the CTRL voltage to rise to the turn-on threshold and by slowing down the rate of rise of the control voltage at the input of the comparator.
Adding a capacitor increases the time taken for the output to reach 90% of its final value, this delay is 0.1ms/nF, but will impact on the PWM
dimming accuracy depending on the delay introduced.
Figure 4 Soft Start with 22nF Capacitor on CTRL Pin (V IN = 36V, I LED = 667mA, 1 LED)
Reducing Output Ripple
Peak to peak ripple current in the LED(s) can be reduced, if required, by shunting a capacitor C2 across the LED(s) as shown already in the circuit
schematic.
A value of 1 μ F will reduce the supply ripple current by a factor three (approx.). Proportionally lower ripple can be achieved with higher capacitor
values. Note that the capacitor will not affect operating frequency or efficiency, but it will increase
start-up delay, by reducing the rate of rise of
LED voltage. By adding this capacitor the current waveform through the LED(s) changes from a triangular ramp to a more sinusoidal version
without altering the mean current value.
AL8806
Document number: DS35144 Rev. 5 - 2
9 of 15
www.diodes.com
July 2013
? Diodes Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| AL8807W5-7 | IC LED DRVR DCDC BUCK SOT25 |
| AL9910AS-13 | IC LED DRVR HIGH BRIGHT SO8EP |
| ALC60481R05 | PWR SUP AC-DC 6-48V 1.05A 50.4W |
| ALV100362R5 | POWER SUPPLY AC-DC 36V 2.5A 90W |
| ALV60361R7 | POWER SUPPLY AC-DC 36V 1.7A 61W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AL8806QMP-13 | 功能描述:LED 驱动器 IC 1 输出 DC DC 稳压器 降压（降压） 模拟，PWM 调光 1.5A（开关） 8-MSOP-EP 制造商:diodes incorporated 系列:汽车级，AEC-Q100 包装:剪切带（CT） 零件状态:有效 类型:DC DC 稳压器 拓扑:降压（降压） 内部开关:是 输出数:1 电压 - 供电（最低）:6V 电压 -?供电（最高）:30V 电压 - 输出:36V 电流 - 输出/通道:1.5A（开关） 频率:1MHz 调光:模拟，PWM 应用:汽车级 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸焊盘 供应商器件封装:8-MSOP-EP 标准包装:1 |
| AL8807 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:HIGH EFFICIENCY LOW EMI 36V 1A BUCK LED DRIVER |
| AL8807A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:The AL8807A is a step-down DC/DC converter designed to drive LEDs with a constant current |
| AL8807AEV1 | 功能描述:AL8807A 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:680mA 输出和类型:1，非隔离 电压 - 输出:- 特性:可调光 电压 - 输入:6 V ~ 36 V 所含物品:板 使用的 IC/零件:AL8807A 标准包装:1 |
| AL8807AEV3 | 功能描述:AL8807A 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:1A 输出和类型:1，非隔离 电压 - 输出:- 特性:可调光 电压 - 输入:6 V ~ 36 V 所含物品:板 使用的 IC/零件:AL8807A 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。