General Description
The MAX8844Z/MAX8844Y intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated dual input linear chargers are designed for charging a single-cell lithium-ion (Li+) battery. The MAX8844Z/MAX8844Y integrate a current-sense circuit, MOSFET pass element, thermal-regulation circuitry, and eliminate the external reverse-blocking Schottky diode to create the simplest and smallest charging solutions for handheld equipment.

FEATUREs
♦ CCCV, Thermally Regulated Linear One-Cell Li+ Battery Charger
♦ No External MOSFET, Reverse Blocking Diode, or Current-Sense Resistor
♦ Programmable Fast-Charge Currents (1ARMS max)
♦ Programmable Top-Off Current Threshold
♦ Input Overvoltage Protected 4.7V Output (SAFEOUT) from IN
♦ Input Overvoltage Protected 4.7V Output (SAFEUSB) from USB
♦ Proprietary Die Temperature Regulation Control (+115°C)
♦ 4.25V to 28V Input Voltage Range with Input Overvoltage Protection Above +7.5V
♦ Low-Dropout Voltage (300mV at 500mA)
♦ Input Power-Source Detection Output (POK), Charge Status Output (CHG), Charge-Enable Input (EN)
♦ Output for Autobooting (ABO, MAX8844Z)
♦ Output for Autobooting (ABO, MAX8844Y)
♦ Tiny 3mm x 3mm, 14-Pin TDFN Package, 0.8mm Height (max)

APPLICATIONs
    Cellular and Cordless Phones
    Smart Phones and PDAs
    Digital Still Cameras
    MP3 Players
    USB Appliances
    Charging Cradles and Docks
    Bluetooth® Equipment