ET6298
General Description
ET6298 is a constant current LED driver circuit with 256 steps linear current control function. Built-in 16 independent low-resistance color LED driver channels, can adjust each channel’s current. Through code selection, each channel can provide four current range: 5mA, 10mA, 20mA, 40mA. ET6298 integrate 7 audio equalizer, subdivide 20Hz~20KHz input audio signal into 7 frequencies by built-in bandpass filters, and through the built-in high resolution ADC converts the average amplitude of each frequency value into corresponding data, control 7 output current channels. In audio synchronization mode, MCU needn’t any data operation, only need to set up the corresponding instruction, LED brightness will change along with the music beats.
ET6298 also have half fade function, in this mode, MCU just completed the brightness and darkest time cycle control and send single instruction to set fade direction(fade-in or fade-out), ET6298 will automatically complete fade-in or fade-out cycle control, this will greatly reduce the hardware and software overhead.
Features
256 steps linear current adjust
Provide four current range: 5mA, 10mA, 20mA, 40mA.(Default 20mA)
Use common anode LED
I2C BUS interface, can read and write
Any channel’s current can be adjust alone
Half fade function, send single instruction to set fade direction
Low voltage reset
Built-in 7 audio equalizers
Built-in LED brightness will change along with the music beats
-24~+18dB audio signal gain adjustment
Operate temperature range:Topr=-40~85℃
Package: QFN24
Operate supply voltage:2.4V-5.5V
Applications
Mobile Phones
MP3/MP4/CD
Toy
Pin Configuration
Block Diagram
Application Circuits