LM4970
www.ti.com SNVS312D – JANUARY 2005 – REVISED MAY 2013 LM4970 Audio Synchronized Color LED Driver
Check for Samples: LM4970 FEATURES DESCRIPTION The LM4970 is a LED driver with an audio
synchronization mode that virtually eliminates the
need for real time software processing for LED
lighting effects. The LM4970 includes three individual
PWM color LED drivers that provide up to 42mA of
current drive for each PWM LED output. 1 2 Audio Synchronized Color LED Driver
User Defined LED Pattern, Color, and Intensity
Capability
Programmable:
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LED Drive Current
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PWM Frequency
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High Pass Filter Frequency Select
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Audio Input Signal Gain
Eliminates External LED Current Limiting
Resistors
I2C Compatible Interface
Ultra Low Shutdown Current APPLICATIONS Cell Phones …
