DATASHEET
ISL9230 FN7642
Rev 2.00
September 22, 2011 High Power Li-Ion Charger W/I-Path Management
The ISL9230 is a fully integrated high input voltage single-cell
Li-ion battery charger with power path management function.
This charger performs the CC/CV charge function required by
Li-ion batteries. The charger can withstand an input voltage up
to 26V but is disabled when the input voltage exceeds 6.6V
OVP threshold. The input current limit and charge current are
programmable with external resistors. When the battery
voltage is lower than 3.0V, the charger preconditions the
battery with 10% of the programmed charge current. When
the charge current reduces to the end-of-charge (EOC) current
level during the CV charge phase, the EOC indicator (CHG) will
toggle to a logic high to indicate the end-of-charge condition. Features The ISL9230 uses separate power paths to supply the system
load and the battery. This feature allows the system to
immediately operate with a completely discharged battery.
This feature also allows the charge to terminate when the
battery is full while continuing to supply the system power
from the input source, thus minimizing unnecessary
charge/discharge cycles and prolonging the battery life. Complies with USB Charger Complete Charger for Single-Cell Li-ion/Polymer Batteries Current Path Management Optimize for Charge and System
Currents Intelligent Timeout Interval Based on Actual Charge Current 1% Charger Output Voltage Accuracy Programmable Input Current Limit Programmable Charge Current NTC Thermistor Input Charge Current Thermal Foldback for Thermal Protection Trickle Charge for Fully Discharged Batteries 26V Maximum Voltage at VIN Pin Power Presence and Charge Indications Ambient Temperature Range: -40В°C to +85В°C Two indication pins (PG and CHG) allow simple interface to a …