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DN05022

ON Semiconductor
Part Number DN05022
Manufacturer ON Semiconductor
Description Low-Cost LED Dimming
Published Aug 5, 2014
Detailed Description DN05022/D Low-Cost LED Dimming with Output Capacitor http://onsemi.com DESIGN NOTE Table 1. DEVICE DETAILS Device NSIC2...
Datasheet PDF File DN05022 PDF File

DN05022
DN05022

Overview
DN05022/D Low-Cost LED Dimming with Output Capacitor http://onsemi.
com DESIGN NOTE Table 1.
DEVICE DETAILS Device NSIC2050B, NSI50010Y Application AC LED, Dimmable Input Voltage 100āˆ’127 Vac Topology Bridge + CCR and PWM Sensing I/O Isolation No Circuit Description This circuit can be thought of as having two separate portions.
There is an LED management portion and a dimmer management/PWM Signal portion.
The LED management portion charges the output capacitor to run the LEDs in a ā€œDCā€ state.
The dimmer management portion provides loading current for the TRIAC in a dimmer and provides a gate voltage to the series-pass MOSFET.
The gate drive of the series MOSFET PWMs the LEDs at their peak ...


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