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参数资料
| 型号： | ADM8843ACPZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16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 6. Digital Inputs Truth Table
CTRL1
0
0
1
1
0
PWM
1
PWM
PWM
CTRL2
0
1
0
1
PWM
0
PWM
1
PWM
LED Operation
Sub display off/main display off (full shutdown) 1, 2
Sub display off/main display on 1, 3
Sub display on/main display off 1, 2
Sub display on/main display on (full on) 1, 3
Sub display off/digital PWM brightness control on main display 4, 5
Digital PWM brightness control on sub display/main display off 2, 4
Sub display on/digital PWM brightness control on main display 1, 5
Digital PWM brightness control on sub display/main display on 5
Digital PWM brightness control on sub and main display 5
1
2
3
4
5
Sub display on means the display is on with the maximum brightness set by the R SET resistor. CTRL1 = 1 means a constant logic level (V CC ) is applied to CTRL1.
Main display off means only the main display is off. CTRL2 = 0 means a constant logic level (GND) is applied to CTRL2.
Main display on means the display is on with the maximum brightness set by the R SET resistor. CTRL2 = 1 means a constant logic level (V CC ) is applied to CTRL2.
Sub display off means only the sub display LEDs is off. CTRL1 = 0 means a constant logic level (GND) is applied to CTRL1.
PWM means a digital PWM signal is applied to the CTRL1 and/or the CTRL2 pin with a frequency from 100 Hz to 200 kHz.
LED CONFIG.
FULL ON
SUB AND MAIN 50%
DUTY CYCLE
MAIN AND SUB OFF
MAIN 80% DUTY CYCLE,
SUB OFF
t CP
CTRL1
CTRL2
V OUT
I LED
(SUB)
I LED
(MAIN)
100%
SUB DISPLAY
BRIGHTNESS
100%
50%
SHDN
MAIN DISPLAY
BRIGHTNESS
50%
37ms > t CP > 15ms
Figure 20. Application Timing
Rev. C | Page 11 of 16
SHDN
80%
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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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