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| 型号： | ADM8843ACPZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16LFCSP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，切换式电容器（充电泵） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 200kHz |
| 电源电压： | 2.6 V ~ 5.5 V |
| 输出电压： | 4.81V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 16-LFCSP-VQ |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 789 (CN2011-ZH PDF) |
| 其它名称： | ADM8843ACPZ-REEL7DKR |
ADM8843
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Characteristics .............................................................. 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 9
Automatic Gain Control............................................................ 10
Brightness Control with a Digital PWM Signal ..................... 10
LED Brightness Control
Using a PWM Signal Applied to V PWM .................................... 12
LED Brightness Control
Using a DC Voltage Applied to V BRIGHT ................................... 12
Applications..................................................................................... 13
Layout Considerations and Noise ............................................ 13
White LED Shorting .................................................................. 13
Driving Four LEDs in the Main Display Only ....................... 13
Driving Fewer than Four LEDs ................................................ 13
Using Smaller Capacitor Values ............................................... 14
Power Efficiency......................................................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
REVISION HISTORY
1/11—Rev. B to Rev. C
Changes to Figure 14........................................................................ 7
4/10—Rev. A to Rev. B
Removed CP-16-12 Package .............................................Universal
Change to Figure 2 ........................................................................... 5
Change to Figure 6 ........................................................................... 6
Changes to Figure 14........................................................................ 7
Changes to Figure 15........................................................................ 8
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 16
12/06—Rev. 0 to Rev. A
Change to Thermal Characteristics Section ................................. 4
Changes to Outline Dimensions................................................... 16
Changes to Ordering Guide .......................................................... 16
10/04—Revision 0: Initial Version
Rev. C | Page 2 of 16
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| ADM8843ACUZ-REEL7 | 制造商:Analog Devices 功能描述: |
| ADM8843EB-EVALZ | 功能描述:BOARD EVAL ADM8843 RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:- 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| ADM8845 | 制造商:AD 制造商全称:Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACP | 制造商:Analog Devices 功能描述:CHG PUMP STPUP 30MA 16LFCSP - Bulk |
| ADM8845ACP-REEL | 制造商:Analog Devices 功能描述:Charge Pump STPUP 30mA 16-Pin LFCSP EP T/R |
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