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PCA9552

Part No PCA9552
Manufacturer NXP / Nexperia
Description 16-bit I2C LED driver with programmable blink rates
Sample
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Manufacturer NXP
Win Source Part Number 1236041-PCA9552
Manufacturer Homepage www.nxp.com
Popularity Medium
Supply and Demand Status Limited
Ultra Librarian 3D Model Ultra Librarian PCA9552 CAD Model

Description

NXP PCA9552 LED Driver

The PCA9552 from NXP Semiconductors is a sophisticated LED driver designed to control and enhance the functionality of multiple LEDs in a wide array of applications. It is a 16-bit I²C-bus LED driver with programmable blink rates, providing designers with a versatile tool for creating advanced lighting solutions.

This component is part of NXP's PCA955x family and operates on a supply voltage range of 2.3V to 5.5V, which makes it suitable for use in various systems, including battery-operated devices. The PCA9552 is capable of driving up to 16 individual LEDs, with each output programmable to off, on, blinking at a programmable rate, or dimming at one of 256 intensity levels.

One of the key features of the PCA9552 is its built-in programmable blinker function, which can be used to create eye-catching visual effects without the need for constant intervention from the host processor. This not only saves power but also frees up valuable system resources for other tasks. The device's I²C-bus interface supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) I²C-bus modes, enhancing its compatibility with a wide range of microcontrollers and processors.

The PCA9552 also includes an internal oscillator with two user-programmable blink rates and duty cycles, eliminating the need for external timing components. This feature simplifies the design and reduces the overall bill of materials for the lighting system. Additionally, the outputs are equipped with an open-drain structure, allowing the PCA9552 to be connected directly to the LEDs while maintaining a low saturation voltage.

Designed with robustness in mind, the PCA9552 incorporates built-in output error detection, which can signal the microcontroller in case of an LED open-circuit or short-circuit event. This ensures reliable operation and aids in system diagnostics and fault management.

The compact package options, including TSSOP24 and HVQFN24, make the PCA9552 an ideal choice for space-constrained applications. Whether it's automotive dashboard lighting, industrial signal lights, or consumer electronics, the PCA9552 is an excellent choice for designers looking to add sophisticated LED control to their products.

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