LM3842 Datasheet Step-down Constant Current Led Driver

Manufacturer: Unknown Manufacturer

Overview: LM3842.

Datasheet Details

Part number	LM3842
Manufacturer	Unknown Manufacturer
File Size	367.53 KB
Description	step-down constant current LED driver
Datasheet	LM3842_ETC.pdf

General Description

The LM3842 is a step-down constant current LED driver.

When the input voltage down to lower than LED forward voltage, then LM3842 run into LDO mode.

The LM3842 supports a range of input voltages from 2.5V to 6.0V, allowing the use of a single Li+/Li-polymer cell, 3AA or 4AA cell, USB, and other standard power sources.

Key Features

n n n n n n n n n n n n Efficiency up to 93% 180 μA(TYP. ) Quiescent Current Output Current: Up to 1A Internal Synchronous Rectifier 1.5MHz Switching Frequency Soft Start Under-Voltage Lockout Short LED Protection Open LED Protection Thermal Shutdown 5-pin Small SOT23-5 Packages Pb-Free Package General.

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