BU1840AMUV Datasheet - ROHM

BU1840AMUV Synchronous Switch-Mode Charger IC

The BU1840AMUV device provides the best system to the product charged with 1cell Li-ion battery and 3cell Nickel-metal-hydride batteries using the 2cell, 3cell, and 4cell solar panel. It is possible to boost it according to the voltage of 2 cell solar panel with built-in the function to boost the lo.

BU1840AMUV Features

* Synchronous Switch-Mode Charger for 2Cell Solar 400mA@Battery=3.7V,VIN=1V

* MPPT control voltage range：0.7V～1.5V

* Charging current completion voltage： 5.0V (hysteresis: 0.075V)

* Built in MPPT

* Switching frequency (160kHz,320kHz)

* Charging current

BU1840AMUV-ROHM.pdf