# LP3943 RGB, White, Blue 16-LED Fun Light Driver

## Features
️· Internal Power-On Reset
️· Internal Precision Oscillator
️· Variable Dim Rates (0.625 Hz to 160 Hz)
️· 16 LED Drivers with multiple programmable states (ON, OFF, DIM0, DIM1)
️· Open-Drain Outputs (up to 25mA per LED)

## Applications
️· Customized Flashing LED Lights for Cellular Phones
️· Portable Applications
️· Digital Cameras
️· Indicator Lamps
️· General Purpose I/O Expander
️· Toys

## Description
The LP3943 is an integrated device capable of driving 16 LEDs independently. It contains an internal oscillator and provides versatile duty-cycle control via two prescaler and two PWM registers. It can be used with RGB, white, or blue LEDs and offers GPIO expansion capabilities.

## Pin Configuration
️· LED0-LED15: LED Driver Outputs
️· RST: Active Low Reset Input
️· SCL, SDA: I2C Interface
️· A0, A1, A2: I2C Address Inputs
️· VDD: Power Supply
️· GND: Ground

## Electrical Characteristics
️· VDD: 2.3V to 5.5V
️· LED Current: up to 25mA per LED
️· I2C Interface: Standard I2C communication

## Register Map (Key Registers)
️· Prescaler Registers (PSC0, PSC1): Control PWM frequency.
️· PWM Registers (PWM0, PWM1): Control PWM duty cycle.
️· LED Select Registers (LS0-LS3): Select which LEDs are connected to PWM0/PWM1 or are on/off.