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Применения > Освещение > Lighting control > Wireless Controls > 110-VAC to 5-VDC @ 30-mA Non-Isolated Power Supply Reference Design

110-VAC to 5-VDC @ 30-mA Non-Isolated Power Supply Reference Design (TIDA-00379)

The 110-VAC to 5-VDC @ 30-mA Non-Isolated Power Supply TI Design uses a low-power, low-cost, off-line buck converter and a low-noise, low-dropout voltage regulator to generate a non-isolated 5V/30mA output directly from a 110-VAC line input with under 10-mV outpur ripple across no-load and full-load conditions. Off-line converters are powered directly from the AC line by using a rectifier and capacitive filter, and do not require a large 60-Hz transformer, thereby eliminating the heaviest and costliest component of a typical transformer-based power supply. The entire TI design is implemented on a single-sided, double-layer board size of just 63.2 x 38.1 mm with a build-of-materials (BOM) count of 20 devices.

Возможности

Solution does not require a custom transformer Optimized, low-cost BOM Input: 110-VAC (85- to 130-VAC), Output voltage: 5-VDC Load current: 500-uA to 30-mA Output ripple of less than 10mV Conducted emissions: CISPR 22, Class B

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Схемы и диаграммы

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Печатные платы и ПО

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Спецификация (BOM)

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110-VAC to 5-VDC @ 30-mA Non-Isolated Power Supply Reference Design TIDA-00379

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