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Documents LP3943
SNVS256D – NOVMEBER 2003 – REVISED NOVEMBER 2016 LP3943 16-Channel RGB, White-LED Driver With Independent SMBUS/I2C String Control
1 Features 3 Description The LP3943 is an integrated device capable of
independently driving 16 LEDs. This device also
contains an internal precision oscillator that provides
all the necessary timing required for driving each
LED. Two prescaler registers, along with two PWM
registers, provide a versatile duty-cycle control. The
LP3943 contains the ability to dim LEDs in
SMBUS/I2C applications where it is required, to cut
down on bus traffic. 1 Internal Power-On Reset
Active Low Reset
Internal Precision Oscillator
Variable Dim Rates
(From 6.25 ms to 1.6 s; 160 Hz to 0.625 Hz)
16 LED Drivers (Multiple Programmable States:
ON, OFF, Input, and Dimming at a Specified
Rate) …
