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LP5036RJVR

TILP5036RJVR

Texas Instruments
LED Driver IC 36 Output Linear Dimming 35mA 46-VQFN (6x5)
Active21,530 in stock

Overview

The LP5036RJVR is a 36-channel constant-current sink LED driver featuring a 12-bit PWM generator for each channel. It supports high-resolution color mixing and brightness control via an I2C interface, operating from a 2.7V to 5.5V supply. The device is specifically designed to minimize audible noise through a 29kHz PWM frequency and a 3-phase-shifting scheme that reduces peak current demand.

Why Choose This Part

This driver simplifies firmware development with its built-in 12-bit PWM and programmable R-G-B banks for synchronized color adjustments. It features ultra-low power consumption, drawing only 1uA in shutdown and 10uA in standby mode. The integration of an internal oscillator and LDO reduces external component count and PCB footprint in space-constrained designs.

Applications

Smart Home Keypads
Driving RGB LED rings and backlit buttons with smooth logarithmic dimming and independent color control.
Industrial HMI
Providing status indicators and animated lighting effects on operator panels with minimal CPU overhead.
Smart Speakers
Creating vibrant light ring animations using the 36 independent channels for complex visual feedback.
Gaming Peripherals
Implementing localized RGB lighting in high-density areas with 35mA per channel drive capability.

Key Specifications

Type Linear
Frequency 29kHz
Applications LED Lighting
Mounting Type Surface Mount
Package / Case 46-VFQFN Exposed Pad
Voltage - Output 0V ~ 5.5V
Number of Outputs 36
Internal Switch(s) No
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Supply (Max) 5.5V
Voltage - Supply (Min) 2.7V
Supplier Device Package 46-VQFN (6x5)
Current - Output / Channel 35mA

Getting Started

Start development with the LP5036EVM evaluation module, which connects to a PC for configuration via TI's GUI tools. Implement the I2C communication using the auto-increment and broadcast slave address features to speed up register writes. Ensure the 46-VQFN exposed pad is properly soldered to a ground plane for optimal thermal performance.