DESCRIPTION

ETA3006 is an inductive cell balancer. Unlike

conventional passive balancing technique, ETA3006

utilizes a control scheme with an inductor to shuffle

currents between two cells until the cells are

balanced. Due to the switching nature, the heat and

power dissipation generated in conventional linear

balance technique are greatly reduced. The balance

time is also significantly reduced due to higher

balancing current not being limited by package

thermal dissipation.

ETA3006 consumes only 2μA ultra-low current from

batteries in standby mode, extending the battery shelf

time. The final balanced voltages of both cells are

also highly accurate which enhances the

performance and lifetime for the batteries connected

in series. ETA3006 can also be used in multiple cells

stacking with even number of cells. ETA3006

includes protection features similar to precondition in

battery charging, that is when one cell’s voltage is

grossly lower than the other, the balancing current is

reduced to a safe level until the lower voltage cell is

charged up.

ETA3006 is available in ESOP-8 package.

FEATURES

 Inductive, switching control scheme

 Up to 90% charger transfer efficiency

 Accurate balanced voltages down to 10mV

 Auto detect unbalance and auto balance

 Low sleeping supply current, 2μA

 Programmable balancing current up to 2A

 Precondition balancing current

 Battery over voltage protection

 Support small size inductor

 Pb Free, RoHS and REACH Compliant

 Halogen Free and “Green” Device

APPLICATIONS

 Multi-cells System

 Battery Pack

 Portable Equipment and Instrumentation

 Battery Backup Systems

 E-Cigarette