LC709203F Datasheet (ON Semiconductor)

LC709203F, Battery Fuel Gauge LSI

1 B1 TEST I Connect this pin to VSS.

2 A1 VSS * Connect this pin to the battery’s negative ( *) pin.

3 A3 VDD * Connect this pin to the battery’s positive (+) pin.

4 A2 ALARMB O This pin indicates alarm by low output(open drain).

Pull-up must be done externally.

Smart LiB Gauge Battery Fuel Gauge LSI For 1‐Cell Lithium‐ion/ Polymer (Li+) LC709203F Overview LC709203F is a Fuel Gauge for a single lithium ion/polymer battery.

It is part of our Smart LiB Gauge family of Fuel Gauges which measure the battery RSOC (Relative State Of Charge) using its unique algorithm called HG CVR.

The HG CVR algorithm eliminates the use of a sense resistor and provides accurate RSOC information even under unstable conditions (e.g.

changes of battery; tempera

LC709203F Features

* HG

* CVR Algorithm Technology

* No External Sense Resistor

* 2.8% Accuracy of RSOC

* Accurate RSOC of Aging Battery

* Automatic Convergence of Error

* Adjustment for the Parasitic Impedance around the Battery

* Simple and Quick Setup