PCA9633PW,112

Overview

The PCA9633PW,112 is a 4-bit Fm+ I²C-bus LED driver manufactured by NXP Semiconductors. It features four independent open-drain outputs capable of sinking up to 100 mA each, with a maximum output voltage of 5.5 V. The device operates within a supply voltage range of 2.3 V to 5.5 V and supports I²C clock frequencies from 100 kHz to 1 MHz. Packaged in a TSSOP-16 surface-mount housing, it functions as a voltage-switched LED driver designed for efficient lighting control applications.

Feature Summary

• Four independent open-drain outputs provide individual channel control for LED loads.
• I²C interface enables communication at standard and fast-mode plus speeds.
• Voltage-switched architecture allows operation across a wide input voltage range.

Applications

• LED backlighting systems
• General indicator lighting control
• Low-power LED display panels

Procurement Notes

Verify the specific suffix '112' against current manufacturer documentation to confirm package and tape/reel specifications. Confirm availability status as older revisions may be discontinued or superseded by newer variants. Ensure the component meets required RoHS compliance standards for the target application region before finalizing procurement orders.

Selection Notes

Select this component when a compact solution for controlling up to four LEDs via an I²C bus is required. It is suitable for designs needing high sink current capability per channel while maintaining low power consumption. Consider the TSSOP-16 package constraints regarding thermal dissipation and board space limitations during the initial design phase.

Part Context

This part belongs to the PCA9633 series of LED drivers, which are optimized for simple and smart lighting solutions. The series provides a cost-effective method for managing LED intensity and state through digital interfaces. It serves as a bridge between microcontrollers and LED arrays, simplifying wiring and reducing pin count requirements on the host processor.

Replacement Considerations

Check for direct substitutes such as the PCA9633DP1 variant if a different package size is needed. Verify functional compatibility with other 4-channel I²C LED drivers from NXP or third-party manufacturers, ensuring pinout and electrical characteristics match the existing circuit design.