PCA9533D/02,118

Overview

The PCA9533D/02,118 is a 4-bit I²C LED dimmer IC manufactured by NXP USA Inc. It features linear I²C and SMBus dimming control with an operating frequency of 400kHz. The device provides four open-drain outputs capable of sinking 25mA per channel, suitable for direct LED driving. It operates within a supply voltage range of 2.3V to 5.5V and supports a wide temperature range from -40°C to +85°C. The component is housed in an 8-TSSOP package.

Feature Summary

• Supports I²C and SMBus interfaces for digital brightness control
• Provides four independent output channels for LED driving
• Includes internal power-on reset for defined startup states

Applications

• Backlight systems
• RGB color tuning
• General-purpose input/output expansion

Procurement Notes

Verify the specific suffix /02,118 against official NXP documentation to confirm the fixed I²C address configuration. Ensure the selected variant matches the required bus addressing scheme for the target application design.

Selection Notes

Select this component when a 4-channel LED driver with I²C/SMBus compatibility is required. Consider the 25mA sink current capability and the 8-TSSOP package constraints relative to the PCB layout requirements.

Part Context

This part belongs to the PCA9533 family of 4-bit I²C LED dimmers. It shares functional similarities with other NXP LED controllers but is distinguished by its specific fixed I²C address assigned by the /02 suffix, allowing multiple devices to operate on the same bus alongside /01 variants.

Replacement Considerations

PCA9533DP/02,118 is a verified equivalent part number.