MAX8844Z Overview
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. The IC controls the charging sequence from the prequalification state through constant current fast-charge, top-off charge, and full-charge indication. Proprietary...
MAX8844Z Key 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 (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)