PCA9626BS,518

Overview

The PCA9626BS,518 is a 24-bit Fm+ I²C bus LED driver designed for voltage switching dimming and flashing control of RGBA LEDs. It features independent 8-bit PWM controllers for each output operating at 97 kHz with adjustable duty cycles, alongside group PWM controllers for synchronized effects. The device supports a supply voltage range of 2.3 V to 5.5 V and utilizes 100 mA open-drain outputs capable of handling up to 40 V. It includes hardware address pins for multi-device bus configurations and software reset capabilities.

Feature Summary

• Integrates independent per-LED and group-level PWM controllers for precise brightness and flashing management
• Supports high-speed Fm+ I²C communication with hardware addressability for complex bus topologies
• Features low-active output enable pin for external synchronization and software reset functionality

Applications

• Voltage switching dimming and flashing control for RGBA LEDs
• I²C bus controlled lighting systems requiring multiple addressable devices
• Applications necessitating external PWM synchronization via output enable pin

Procurement Notes

Verify component authenticity through authorized NXP distributors or certified partners. Confirm the specific suffix matches the required package variant. Check current availability status as this component may be discontinued or subject to lifecycle changes. Ensure compatibility with existing I²C bus voltage levels and load requirements before integration.

Selection Notes

Select this component when precise individual LED dimming combined with group flashing is required. It is suitable for designs needing high bus capacitance tolerance and flexible addressing schemes. Consider alternative drivers if higher current capacity per channel exceeds the specified limits or if different interface protocols are mandated by the system architecture.

Part Context

This part belongs to the PCA962x series of LED drivers from NXP Semiconductors. It is specifically engineered for applications requiring extensive LED control via the I²C bus. The series offers scalability through addressable configurations and integrates features like software reset and chase byte control to optimize data transmission efficiency in complex lighting setups.

Replacement Considerations

PCA9622, PCA9624, PCA9633, PCA9634, PCA9635