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A8501

Part Number	A8501
Manufacturer	Allegro MicroSystems
Description	4 Channel x 100 mA WLED/RGB Driver
Published	Dec 25, 2016
Detailed Description	A8501 2 MHz, 4 Channel×100 mA WLED/RGB Driver with Output Disconnect FEATURES AND BENEFITS • 600 kHz to 2.2 MHz switchi...
Datasheet	A8501 PDF File

Overview

A8501 2 MHz, 4 Channel×100 mA WLED/RGB Driver with Output Disconnect FEATURES AND BENEFITS • 600 kHz to 2.
2 MHz switching frequency—ability to operate above the AM band • Internal bias supply for single-supply operation (VIN = 6.
8 to 21 V) • Boost converter with integrated 40 V DMOS switch and OVP–load-dump protection • 3.
5 µA shutdown current—limits battery drain • Active current sharing between LED strings for 0.
8% current matching and 0.
7% accuracy • Drive up to 9 series LEDs in 4 parallel strings, 36 LEDs maximum (Vf = 3.
5 V, If = 100 mA) • LED sinks rated for 100 mA each (400 mA total) • PWM dimming with LED PWM duty cycle control • 4000:1 dimming range • Extensive fault mode protectio...

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