MC34673 Datasheet (NXP) - High Input Voltage 1.2A Charger

MC34673, High Input Voltage 1.2A Charger

of each pin can be found in the Functional Pin Description section beginning on page 11.

Pin Number Pin Name Pin Function Formal Name Definition 1 2 3 4 5 6 7 8 EPAD VIN PPR CHG EN GND FAST ISET BAT EPAD Input Output Output Input Ground Output Output Output N/A Input supply The supply input.

Freescale Semiconductor Advance Information Document Number: MC34673 Rev.

1.0, 01/2008 High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries 34673 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 trickl

MC34673 Features

* No external MOSFET, reverse-blocking diode or current-sense resistor are required

* Guaranteed maximum 1.2A programmable CC-mode current

* ±0.7% voltage accuracy over -20°C to 70°C

* ±6% current accuracy over -40°C to 85°C

* 28V maximum voltage for the power