19-0885; Rev 0; 8/07
EVAALVUAAILTAIOBNLEKIT
PMIC with Integrated Charger and
Smart Power Selector for Handheld Device...
19-0885; Rev 0; 8/07
EVAALVUAAILTAIOBNLEKIT
PMIC with Integrated Charger and
Smart Power Selector for Handheld Devices
MAX8671X
General Description
The MAX8671X integrated power-management IC (PMIC) is ideal for use in portable media players and other handheld devices. In addition to five regulated output
voltages, the MAX8671X integrates a 1-cell lithium ion (Li+) or lithium polymer (Li-Poly) charger and Smart Power Selectorâ„¢ with dual (AC-to-DC adapter and USB) power inputs. The dual-input Smart Power Selector supports end products with dual or single power connectors. All power switches for charging and switching the system load between battery and external power are included on-chip. No external
MOSFETs are required. Maxim’s Smart Power Selector makes the best use of limited USB or AC-to-DC adapter power. Battery charge current and input current limit are independently set. Input power not used by the system charges the battery. Charge current and DC current limit are programmable up to 1A while USB input current can be set to 100mA or 500mA. Automatic input selection switches the system load from battery to external power. Other features include over
voltage protection, charge status and fault outputs, power-OK monitors, charge timer, and battery thermistor monitor. In addition, on-chip thermal limiting reduces battery charge rate to prevent charger overheating. The MAX8671X offers adjustable
voltages for all outputs. Similar parts with factory-preset output
voltages...