IS31FL3236A-QFLS2-TR
Overview
The IS31FL3236A is a 36-channel constant current LED driver designed for high-density lighting applications requiring precise brightness control. It operates over a 2.7V to 5.5V supply range and features individual 8-bit PWM dimming for every channel, allowing for complex lighting effects and color mixing. The device minimizes power consumption with a low 3uA shutdown current and includes programmable current scaling to optimize efficiency across different LED types.
Why Choose This Part
It offers a high channel count of 36 outputs in a compact 5x5mm QFN-44 package, significantly reducing PCB footprint for dense LED matrices. The integration of 256-step PWM dimming and independent current scaling (1x to 0.25x) provides flexible thermal management and precise color balancing without external components.
Applications
Key Specifications
Getting Started
Communicate with the device over I2C using the automatic address increment feature to minimize bus traffic during configuration. Engineers should utilize the SDB pin for hardware shutdown and ensure the thermal pad is properly soldered to manage heat dissipation when driving all 36 channels at the maximum 38mA current. Prototype development can be accelerated using the IS31FL3236A-QFLS2-EB evaluation board.
Also Consider
NXP Semiconductors
- A 16-channel 12-bit PWM controller that is widely used in the hobbyist ecosystem and features an internal oscillator.
