ISL9203ACRZ Renesas

Datasheet ISL9203A Li-Ion/Li Polymer Battery Charger The ISL9203A is an integrated single-cell Li-ion or Features Li-polymer battery charger capable of operating with Complete charger for single-cell Li-ion batteries an input voltage as low as 2.4V. This charger is Very low thermal dissipation designed to work with various types of AC adapters. Integrated pass element and current sensor The ISL9203A operates as a linear charger when the AC adapter is a voltage source. The battery is No external blocking diode required charged in a Constant Current/Constant Voltage 1% voltage accuracy (CC/CV) profile. The charge current is programmable with an external resistor up to 1.5A. The ISL9203A Programmable current limit up to 1.5A can also work with a current-limited adapter to Charge current thermal foldback minimize the thermal dissipation, in which case the Accepts multiple types of adapters ISL9203A combines the benefits of both a linear charger and a pulse charger. Operation down to V = 2.65V after startup IN The ISL9203A features charge current thermal Ambient temperature range: -20C to +70C foldback to ensure safe operation when the Printed Thermally-enhanced DFN packages Circuit Board (PCB) is space limited for thermal Pb-free (RoHS compliant) dissipation. Additional features include preconditioning of an over-discharged battery and Applications thermally enhanced DFN package. Handheld devices, including medical handhelds Related Literature PDAs, cell phones, and smartphones For a full list of related documents, visit our website: Portable instruments and MP3 players ISL9203A device page Self-charging battery packs Stand-alone chargers USB bus-powered chargers 5V VIN VBAT Input C 1 C 2 ISL9203A R 1 VSEN STATUS V2P8 Floating EN IREF To Enable C 3 TIME GND C TIME R IREF Figure 1. Typical Application Circuit FN6430 Rev.1.00 Page 1 of 21 Jun.14.19ISL9203A 1. Overview 1. Overview 1.1 Typical Application 5V Wall VIN VBAT Adapter C 1 C 2 10F R 2 10F Battery 1k R 1 ISL9203A Pack 1 D 1 VSEN STATUS V2P8 EN IREF C 3 1F TIME GND R IREF 80k C TIME 1nF FN6430 Rev.1.00 Page 2 of 21 Jun.14.19