The NCP5623 LED driver receives the processor's instructions through its I2C interface for automatic operation. Its three-way control current outputs are independent, each with a typical matching tolerance of ±0.5% and 32 current levels, allowing one tri-color RGB LED to display more than 32,000 colors. The device incorporates a progressive dimming function that gradually increases or decreases the output current to create a theater-like fade in/out effect. Thanks to the inclusion of a logarithmic current algorithm, the device ensures that brightness and color changes are presented in a smooth and gradual manner.
To maximize battery life, the NCP5623 achieves 94% peak energy efficiency and less than 1 microamp standby current, exceeding the operating range of a typical lithium battery. For typical applications, the device combines the advantages of a very small IC package with the ability to operate with only four passive components. The device also features short-circuit and over-voltage protection to protect the system from LED failure.
Package and price
The NCP5623 is available in a 2.0 mm × 2.0 mm × 0.55 mm LLGA-12 lead-free package and is priced at $0.55 per unit in 3,000-piece quantities.
About ON Semiconductor
ON Semiconductor (Nasdaq: ONNN) has a global logistics network and a powerful family of power semiconductor devices for power, computer, consumer, portable/wireless, automotive and industrial applications. The preferred power solution provider for engineers, procurement personnel, distributors, and electronics foundry manufacturers.
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