PCA9551DManufacturer: PHI 8-bit I2C LED driver with programmable blink rates | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9551D | PHI | 2 | In Stock |
Description and Introduction
8-bit I2C LED driver with programmable blink rates The **PCA9551D** from Philips is a versatile **I²C-controlled LED driver** designed to simplify the management of multiple LEDs in embedded systems. This 8-bit device integrates a **serial I²C interface**, allowing efficient control of up to eight independent LED outputs with minimal microcontroller overhead.  
Featuring **individually programmable PWM (Pulse Width Modulation) controllers**, the PCA9551D enables precise brightness adjustment for each LED, making it ideal for applications requiring dynamic lighting effects or status indicators. Its **low standby current consumption** ensures energy efficiency, while the built-in **open-drain outputs** support both LED sinking and flexible voltage compatibility.   The PCA9551D operates across a **2.3V to 5.5V supply range**, accommodating various system voltages. Its **hardware address pins** allow multiple devices to coexist on the same I²C bus, simplifying scalable designs. Additionally, the component includes **thermal shutdown protection**, enhancing reliability in demanding environments.   Common applications include **industrial control panels, automotive dashboards, consumer electronics, and IoT devices** where efficient LED control is essential. With its compact **SO16 package**, the PCA9551D offers a space-saving solution for modern electronic designs.   Engineers benefit from its **simplified software integration**, reducing development time while maintaining robust performance. The PCA9551D exemplifies Philips' commitment to delivering high-performance, user-friendly IC solutions for advanced lighting control. |
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Application Scenarios & Design Considerations
8-bit I2C LED driver with programmable blink rates
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