PCA9632TK,118

Overview

The PCA9632TK,118 is a 4-bit Fm+ I²C-bus low-power LED driver manufactured by NXP USA Inc. It features four individually programmable LED outputs capable of sink currents up to 25 mA at 5 V. The device supports independent PWM dimming with 8-bit resolution at 1.5625 kHz or grouped dimming modes. Operating within a supply voltage range of 2.3 V to 5.5 V, it utilizes a Fast-mode Plus I²C interface supporting frequencies up to 1 MHz. The component is housed in an HVSON8 package and is designed for applications requiring precise RGB/RGBA color mixing and backlight control.

Feature Summary

• Four individually programmable LED outputs with configurable open-drain or push-pull drive modes
• Independent 8-bit PWM controllers for each output enabling fine-grained brightness adjustment
• Fast-mode Plus (Fm+) I²C interface supporting bus frequencies up to 1 MHz
• Software reset capability allowing remote initialization of all registers via the I²C bus

Applications

• Red/Green/Blue/Amber (RGBA) color mixing systems
• Backlight control for displays and indicators
• LED lighting drivers requiring low power consumption
• I²C bus controlled indicator arrays

Procurement Notes

Verify the specific ordering code PCA9632TK,118 against the manufacturer's current product status. Confirm that the HVSON8 package matches the design requirements. Ensure compliance with RoHS and REACH regulations as indicated in the material declaration. Cross-reference the active status with official distributor channels to confirm availability before finalizing procurement plans.

Selection Notes

Select this component when a low-power solution for driving multiple LEDs via an I²C interface is required. The PCA9632TK,118 is suitable for designs needing independent channel control with high-resolution dimming. Consider the 2.3 V to 5.5 V operating range for compatibility with various logic levels. The Fm+ interface allows for faster communication compared to standard I²C devices, reducing command latency in complex systems.

Part Context

The PCA9632 series represents a low-power upgrade to previous models like the PCA9633, offering significantly reduced power consumption. It belongs to NXP's Fast-mode Plus family, which enhances bus speed and capacitance tolerance. This driver integrates internal switches and PWM controllers, simplifying the design for multi-color LED applications by eliminating the need for external timing components.

Replacement Considerations

The PCA9632DP2Z is listed as a direct substitute for the discontinued PCA9632DP2 variants. However, the PCA9632TK,118 uses an HVSON8 package, while substitutes may utilize TSSOP packages. Verify pin-to-pin compatibility and thermal characteristics when considering alternative package types from the same product family.