BA3170

涓流充电IC，用于双电池中，锂离子电池 Trickle-charge IC for two-cell, lithium-ion batteries

The is a trickle-charge IC developed for two-cell, lithium-ion batteries.The IC includes a charge control circuit, a charge output transistor, and an LED driver for showing the charging status.

Features

1 Output voltage can be varied using an external resistor.

2 The output pin is PNP output with low saturation voltage.

3 Built-in output current limiting circuit protects batteries from excessive current, and prevents destruction of the IC due to output shorts. The initial charge current is set to a low value the cur rent limit pin voltage can be used to vary the current limit value.

4 Pulse charging at over 99% of the final voltage.

5 Built-in over-discharge battery return circuit.

6 Built-in charge fault protection circuit.

7 Built-in over-voltage battery operation circuit.

8 Built-in LED output for charge display two outputs.

9 12-pin power package provides large power dissipation in a compact package.

10 Temperature protection circuit prevents thermal de struction of the IC.

Applications

Lithium-ion two cell battery chargers, and charging circuits