As portable equipment such as cellular phones and digital still cameras becomes smaller and thinner, the battery charging circuit is also required to be smaller and smaller.
This product has a internal power transistor and reverse current protection circuit, which are generally the external devices in conventional design and it is contained in a small PLP-10 package (2.7×2.5×0.6mm). Since no external sensing resistor is required the charging circuit can be configured with the smaller number of parts than the conventional circuit. In addition, with the battery temperature detection function using the thermistor input the charging voltage and current can be controlled in response to temperature increase. With the chip temperature detection function the battery can be charged at the optimal charging rate while satisfying the IC temperature increase limit during charging with large power.

1.	Can reduce number of parts and lower the heat dissipation without externally adding power transistor, reverse current protection circuit or sensing resistor.
2.	Can control the charging voltage and current in proportion to the battery temperature that is detected by the battery temperature detection function using the thermistor input.
3.	Can set up the recharging current, rapid charging current, and charge completion current (maximum charge current : 1.5A) with the use of external resistor.
4.	Limits IC temperature increase during charging with the chip temperature detection function to allow battery charging at the optimal charging rate.
5.	Has an internal changing timer whose charging period of time can be set up at any value by adding the external resistor.

Power supply voltage	4.0 ~ 6.0V
Charging control voltage	4.2V ± 30mV (0.7%)
Rapid charging current	558mA ± 5% (RICHG=2.32kΩ)
Series path Tr On resistor	0.38Ω typ.
Charge timer	60 min. (Recharge) and 300 min. (Rapid charge)
Battery temperature detection	2 °C (Low temp.) and 43 °C (High temp.)
Chip temperature detection	93 °C typ.
Thermal shutdown	153 °C typ.
Package	PLP-10
External dimensions	2.7×2.5×0.6 (Unit: mm)