PCA9633BS,118

Overview

The PCA9633BS,118 is a 4-bit I2C-bus LED driver manufactured by NXP Semiconductors. It features four independent outputs capable of sinking up to 100 mA at low levels and sourcing 50 uA at high levels. The device operates within a supply voltage range of 2.3 V to 5.5 V and supports I2C bus frequencies from 100 kHz to 1 MHz. It utilizes a 16-pin HVQFN package (SOT629-1) with dimensions of 4 x 4 mm and a height of 0.85 mm. The component functions as an LED display driver with serial data input mode and is rated for operating temperatures between -40°C and +85°C.

Feature Summary

• Four independent output channels controlled via the I2C bus interface
• Capable of driving LEDs with high sink current and low source current requirements
• Supports Fast-mode Plus (Fm+) I2C communication speeds up to 1 MHz
• Integrated in a compact plastic HVQFN-16 surface-mount package

Applications

• LED lighting driver circuits
• LED display systems requiring serial control
• Backlighting applications for displays
• General-purpose LED switching and dimming tasks

Procurement Notes

Verify the specific suffix '118' against official NXP documentation to confirm exact packaging and tape/reel specifications. Ensure the HVQFN-16 package variant matches your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest certificate. Check for any obsolescence notices or lifecycle changes directly from NXP before finalizing procurement plans.

Selection Notes

Select this component when a compact solution for controlling multiple LEDs via I2C is required. The 100 mA sink capability suits standard indicator and small display LEDs. Consider the 4-channel limit and ensure it meets the design's output count needs. Verify that the 2.3 V to 5.5 V supply range aligns with the system power architecture. The HVQFN package requires appropriate thermal management considerations during layout.

Part Context

The PCA9633 belongs to NXP's family of I2C-bus LED drivers designed for efficient light control. This series allows microcontrollers to manage LED brightness and state without complex hardware interfaces. The BS variant specifically denotes the HVQFN-16 package option. These drivers simplify PCB routing by replacing parallel interfaces with serial I2C connections, reducing pin counts and board space usage in modern electronic designs.

Replacement Considerations

Check for direct pin-compatible substitutes within the PCA9633 family, such as different package variants like PCA9633PW or PCA9633DP1. Verify if newer revisions offer improved electrical characteristics or updated packaging standards. Consult NXP's official cross-reference tools for validated alternatives that maintain functional equivalence.