Datasheet Summary
Freescale Semiconductor Advance Information
Document Number: MC34673 Rev. 1.0, 01/2008
High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries
The MC34673 is a cost-effective fully-integrated battery charger for Li-Ion or Li-Polymer batteries. The high input voltage, up to 28V, eliminates the input over-voltage protection circuit required in handheld devices such as PDAs, cell phones, portable video game players and digital still cameras.
A typical charge cycle includes trickle, constant-current (CC) and constant-voltage (CV) charge modes. The CC-mode current is programmable up to 1.2A with an external resistor. The voltage across the external resistor is also used to...