1. LX2201 Li-Ion Battery Charger
FEATURES
Up to 2A charge current
Bi-directional Charge/Discharge
USB or AC interface
Low Rdson in discharge mode
Selectable Li-On battery for 4.1V or 4.2V
Internal pass element
No Sense Resistor
Built in MOSFET driver
Inherent Load Disconnected
Programmable charge/stop currents
Conditioning mode
Top-Off mode
Always cool running; internal thermostat
Packaging- 20 lead MLP
APPLICATIONS
Cell Phones
PDA’s, MP3 player
Charging Cradles, Digital Camera
Low-cost single Li-ION cell chargers
AVAILABILITY
Sample – NOW
Production – 4/04
State Select Truth Table
VID0
VID1
State
Description
Shutdown
Battery disconnected. Low quiescent current. 1
Discharge
Battery discharging with internal switch closed. VDD = VBAT
Charging
USB LO
Battery Charging. For USB, current into VIN flows to battery and VDD. VIN current limited to 100mA. For AC adapter, current into VDD flows to battery.
USB HI
Battery Charging. For USB, current into VIN flows to battery and VDD. VIN current limited to 500mA. For AC adapter, current into VDD flows to battery. .