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XRP6840

Exar Corporation
Part Number XRP6840
Manufacturer Exar Corporation
Description 4.3A Supercapacitor Flash LED Driver
Published Aug 30, 2016
Detailed Description December 2009 XRP6840 4.3A Supercapacitor Flash LED Driver with I2C Rev. 1.0.0 GENERAL DESCRIPTION The XRP6840 is a co...
Datasheet PDF File XRP6840 PDF File

XRP6840
XRP6840

Overview
December 2009 XRP6840 4.
3A Supercapacitor Flash LED Driver with I2C Rev.
1.
0.
0 GENERAL DESCRIPTION The XRP6840 is a controlled-current dual-cell supercapacitor charger and high power LED driver.
Operating from a standard lithium-ion battery, the XRP6840 provides up to 4.
3A of programmable Flash LED current and up to 600mA and 5.
6V of programmable supercapacitor charging current and voltage.
Architectured around a 2.
4MHz tri-mode 1x, 1.
5x and 2x charge pump, the XRP6840 charges the stacked supercapacitor to the programmed output voltage with no more than 600mA drawn from the battery.
While charging, an internal active balance circuitry insures matching of the stacked capacitors’ voltages.
A...


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