收藏本站
AP8801
500mA LED STEP-DOWN CONVERTER
Application Information (cont.)
Soft-Start
An external capacitor from the CTRL pin to ground will provide a soft-start delay, by increasing the time taken for the voltage on this pin 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 capacitance
increases this delay by approximately 200μs/nF. The graph below shows the variation of soft-start time for different values of capacitor.
16
14
12
10
8
6
4
2
0
-2
0
20
40 60 80 100 120
CAPACITANCE (nf)
Figure. 19 Soft-Start Time vs. Capacitance
from ADJ Pin to Ground
Thermal Considerations
The graph below in figure 20, gives details for power derating. This assumes the device to be on a FR-4 PCB, 2”x2”, 2oz copper, minimum
recommended pad layout on top layer and thermal vias to bottom layer ground plane standing in still air.
1.2
SO-8
1.0
0.8
MSOP-8
0.6
0.4
0.2
0
-50
-25
0
25
50 75 100
125
AMBIENT TEMPERATURE (°C)
Figure. 20 Maximum Power Dissipation
AP8801
Document number: DS31765 Rev. 7 - 2
10 of 14
www.diodes.com
June 2012
? Diodes Incorporated
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
AP8802HSP-13 IC LED DRIVER HIGH BRIGHT 8SOIC
AP8802SPG-13 IC LED DRIVER HIGH BRIGHT 8SOIC
AP8803WTG-7 IC LED DRIVER CONN CURR TSOT23-5
APEK4402KLP-01-T-DK BOARD EVAL FOR A4402
APP-001-15AMP PLUG AUTO PWR BLACK W/LED 15AMP
APP-001-20AMP AUTO PLUG 12VOLT WITH 20AMP FUSE
APP-001-VO PLUG AUTO PWR BLACK W/LED IND
APP-001 PLUG AUTO PWR BLACK W/LED IND
相关代理商/技术参数
AP8801SG-13 功能描述:LED照明驱动器 28V, 350mA LED DC/DC Converter RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
AP8802 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:1A LED Step-down Converter
AP8802_0912 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:1A LED Step-down Converter
AP8802EV1 功能描述:AP8802 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:700mA 输出和类型:1，非隔离 电压 - 输出:- 特性:可调光 电压 - 输入:8 V ~ 45 V 所含物品:板 使用的 IC/零件:AP8802 标准包装:1
AP8802EV2 功能描述:AP8802 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:8 V ~ 45 V 所含物品:板 使用的 IC/零件:AP8802 标准包装:1
AP8802EV3 功能描述:AP8802 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:8 V ~ 45 V 所含物品:板 使用的 IC/零件:AP8802 标准包装:1
AP8802FNG-7 功能描述:LED照明驱动器 28V, 350mA LED DC/DC Converter RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
AP8802H 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V 1A LED Step-down Converter