ISL9230IRZ Renesas

NOT RECOMMENDED FOR NEW DESIGNS RECOMMENDED REPLACEMENT PART ISL9301 DATASHEET ISL9230 FN7642 Rev 2.00 High Power Li-Ion Charger W/I-Path Management September 22, 2011 The ISL9230 is a fully integrated high input voltage single-cell Features Li-ion battery charger with power path management function. Complete Charger for Single-Cell Li-ion/Polymer Batteries This charger performs the CC/CV charge function required by Li-ion batteries. The charger can withstand an input voltage up Current Path Management Optimize for Charge and System to 26V but is disabled when the input voltage exceeds 6.6V Currents OVP threshold. The input current limit and charge current are Intelligent Timeout Interval Based on Actual Charge Current programmable with external resistors. When the battery 1% Charger Output Voltage Accuracy voltage is lower than 3.0V, the charger preconditions the battery with 10% of the programmed charge current. When Programmable Input Current Limit the charge current reduces to the end-of-charge (EOC) current Programmable Charge Current level during the CV charge phase, the EOC indicator (CHG) will toggle to a logic high to indicate the end-of-charge condition. NTC Thermistor Input Complies with USB Charger The ISL9230 uses separate power paths to supply the system load and the battery. This feature allows the system to Charge Current Thermal Foldback for Thermal Protection immediately operate with a completely discharged battery. Trickle Charge for Fully Discharged Batteries This feature also allows the charge to terminate when the 26V Maximum Voltage at VIN Pin battery is full while continuing to supply the system power from the input source, thus minimizing unnecessary Power Presence and Charge Indications charge/discharge cycles and prolonging the battery life. Ambient Temperature Range: -40C to +85C Two indication pins (PG and CHG) allow simple interface to a 16 Ld 3x3 TQFN Package microprocessor or LEDs. Pb-Free (RoHS Compliant) Applications Mobile Phones Blue-Tooth Devices PDAs MP3 Players Stand-Alone Chargers Other Handheld Devices INPUT TO SYS PART DESCRIPTION VOUT VIN C 3 C 1 C 4.7F X5R ceramic capacitor 1 VBAT ISL9230 C 1F X5R ceramic capacitor 2 R C R 2 2 CONT 1 FROM C3 4.7F X5R ceramic capacitor P CHGEN R (Application specific) IREF IREF D 1 PG R (Application specific) R TIME IREF ILIM CHG R (Application specific) ILIM R BATT ILIM NTC TIME R , R 300 to 1k , 5% resistor T 1 2 AC/USB R TIME FROM P D , D LEDs for indication GND MODE 1 2 FIGURE 1. TYPICAL APPLICATION CIRCUIT FN7642 Rev 2.00 Page 1 of 20 September 22, 2011 ISL9230 Block Diagram Q1 VIN VOUT IOUT ISL9230 VOUT VBAT Q2 VIN VBAT ILIM IBAT ILIMREF CHG PUMP VOUTREF VOUT 155C IREF DIE TEMP IBATREF IBAT IREF VIN NTC HITEMP VBAT IOUT IBAT TIME CLK LOTEMP S VBAT Q VBATREF R DIE TEMP 125C AC/USB MODE CHG CONT PG CHGEN GND FN7642 Rev 2.00 Page 2 of 20 September 22, 2011