34673 Overview
Freescale Semiconductor Advance Information Document Number: 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...
34673 Key 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 input with 6.8V over-voltage protection threshold
- 2.6V minimum input operating voltage
- Trickle charge for fully discharged batteries
- Charge current monitor
- Charge current thermal foldback
- Pb-free packaging designated by suffix code EP