Dual-Input Linear Chargers, Smart Power Selector With Advanced Battery Temperature Monitoring

The MAX8934B MAX8934C MAX8934D MAX8934E dual-input Li+/Li-Poly linear Battery Chargers with Smart Power Selector™ safely charge a single Li+/Li-Poly cell in accordance with JEITA recommendations. The MAX8934_ monitors the battery temperature (TBATT) while charging, and automatically adjusts the fast-charge current and charge termination voltage as the battery temperature varies. The MAX8934_ also monitors the battery temperature while the battery is discharging, and provides a warning flag (active-low OT) to the system in the event that the battery is over temperature. Two safety profiles are supported (see the Charging Profiles section in the full data sheet for details). An ultra-low IQ, always-on LDO provides an additional 3.3V supply for system power. By Maxim Integrated Products