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AL5801

Part Number	AL5801
Manufacturer	Diodes
Description	ADJUSTABLE CURRENT SINK LINEAR LED DRIVER
Published	Jul 17, 2012
Detailed Description	AL5801 100V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER Description The AL5801 combines a 100V N-channel MOSFET with a p...
Datasheet	AL5801 PDF File

Overview

AL5801 100V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER Description The AL5801 combines a 100V N-channel MOSFET with a prebiased NPN transistor to make a simple, small footprint LED driver.
The LED current is set by an external resistor connected from REXT pin (4) to GND pin (6).
The internal pre-biased transistor develops approximately 0.
56V across the external resistor.
The AL5801 open-drain output can operate from 1.
1V to 100V enabling it to operate 5V to 100V power supplies without additional components.
PWM dimming of the LED current can be achieved by driving the BIAS pin (1) with an external, open-collector NPN transistor or open-drain N-channel MOSFET.
The AL5801 is available in a SO...

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