BA3170 查看數據表（PDF） - ROHM Semiconductor

零件编号

产品描述 (功能)

生产厂家

BA3170

Trickle-charge IC for two-cell, lithium-ion batteries

ROHM Semiconductor 

Regulator ICs

Trickle-charge IC for two-cell,

lithium-ion batteries

BA3170

The BA3170 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.

FApplications

Lithium-ion (two cell) battery chargers, and charging circuits

FFeatures

1) Output voltage can be varied using an external resis-

tor.

2) The output pin is PNP output with low saturation volt-

age.

3) Built-in output current limiting circuit protects batter-

ies 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 dissipa-

tion in a compact package.

10) Temperature protection circuit prevents thermal de-

struction of the IC.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)

395

Share Link: