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In battery-powered applications, LED lighting subsystems often receive insufficient attention during power budgeting. Achieving long battery life requires optimizing the complete energy path from battery to light output, including conversion losses, driver quiescent current, and control overhead. LED power must be managed with the same discipline applied to MCU sleep current and wireless standby current. This article examines two Lumissil LED drivers targeting opposite ends of the power spectrum: the IS31BL3557 and the IS31FL3713.
Lumissil Microsystems specializing in analog/mixed-signal products for automotive, communications, industrial, and consumer markets. Lumissil's primary products are LED drivers for low to mid-power RGB color mixing and high-power lighting applications. Other products include audio, sensors, high-speed wire communications, optical networking, and application specific microcontrollers. Lumissil Microsystems has worldwide ofices in the US Taiwan, Japan, Singapore, mainland China, Europe, Hong Kong, India, and Korea.
analog@lumissil.com