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What is ET6034A?

This electronic component, produced by the manufacturer "Etek Microelectronics", performs the same function as "16 Constant Current LED Driver".


ET6034A Datasheet PDF - Etek Microelectronics

Part Number ET6034A
Description 16 Constant Current LED Driver
Manufacturers Etek Microelectronics 
Logo Etek Microelectronics Logo 


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Etek
Microelectronics
ET6034A
16 位恒电流 LED 驱动器
概述
ET6034A 是一颗具有 128 阶线性电流调节功能的恒流 LED 驱动电路,内置 16 个独立的低阻彩色 LED
驱动通道,可以在每个输出级提供 340mA 恒定电流。ET6034A 采用 I2C 总线结构,通过代码设置,可
以调节任意通道的电流大小。电流调整一共有 128 阶,范围是 0%~190%OUT0~5OUT10~15 每三个 LED
共享一个使能开关,控制此开关信号,可以实现 RGB 灯的任意颜色的亮暗变化。
功能特点
16个恒电流输出通道
恒电流输出值不受输出端负载电压影响
精确的电流输出值
通道间一般差异值:<±1.5(典型值); 芯片间一般差异值:<±3%(典型值)。
利用一个外接电阻,可调整电流输出值
每路128阶电流微调功能(范围:0%~190%
恒电流输出范围:340 mA
I2C接口,具有4个片地址
RGB灯任意颜色的亮暗调整功能
软关断功能
工作电压:3.3V/5V
封装形式: QFN24(ET6034AY)
Rev 1.2 2011-11-10
1/10

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ET6034A equivalent
ET6034A
1 复位寄存器
Addr: 00h
Addr
Bit
Bit Name
00H 0 shutdown
7:1 x
Default Access
1b W
xx
Reset Register
Description
软件关断控制位
0b 开机
1b 关机
Don’t Care
2 LED 使能寄存器
Addr: 00h
LED enbale Register
Addr Bit Bit Name Default Access
Description
RGB0 灯使能(LED0LED2
0
rgb0_oe
1b
W
0b
1b
RGB1 灯使能(LED3LED5
1
rgb1_oe
1b
W
0b
1b
LED 灯使能(LED6LED7
2
led67_oe
1b
W
0b
1b
01H LED 灯使能(LED8LED9
3
led89_oe
1b
W
0b
1b
RGB2 灯使能(LED10LED12
4
rgb2_oe
1b
W
0b
1b
RGB3 灯使能(LED13LED15
5
rgb3_oe
1b
W
0b
1b
7:6 xx xx xx xx
Don’t Care
注:(1)根据表 3 设置好每个 LED 灯的固定亮度(电流)值,利用表二的开关信号,可以调节 RGBn
的亮暗变化,n 03RGB 灯组灯方式见应用线路图
2)将表 2 开关全部打开,改变表 3 的每个 LED 灯的固定亮度(恒定电流)值,可以调节单个 LED
灯的亮暗变化
3 固定亮度(恒定电流)寄存器
Addr: 0213h
Fix Brightness Register
Addr
Bit Bit Name Default Access
Description
固定亮度值(恒定电流值)
02H09H,
0CH13H
6:0
fixbrit_ledn
00h
W
00h
01h
不亮
微亮
……
(亮度依次增加)
Rev 1.2 2011-11-10
5/10


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Featured Datasheets

Part NumberDescriptionMFRS
ET6034AThe function is 16 Constant Current LED Driver. Etek MicroelectronicsEtek Microelectronics

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