ADP5063 Series
Linear LiFePO4Battery Charger with Power Path and USB Compatibility
Manufacturer: Analog Devices
Catalog
Linear LiFePO4Battery Charger with Power Path and USB Compatibility
Key Features
• Default charging termination voltage at 3.6 V
• Fully compatible with USB 3.0 and USB Battery Charging 1.2 Compliance Plan Specification
• Tolerant input voltage from −0.5 V to +20 V (USB VBUS)
• Fully programmable via I2C
• Flexible digital control inputs
• Up to 2.1 A current from an ac charger in LDO mode
• Built-in current sensing and limiting
• Operating input voltage from 4 V to 6.7 V
• As low as 55 mΩ battery isolation FET between battery and charger output
• Thermal regulation prevents overheating
• Compliant with JEITA 1 and JEITA 2 Li-Ion battery charging temperature specifications
• SYS_EN flag permits the system to be disabled until battery is at the minimum required level for guaranteed system start-up
• 4 mm × 4 mm LFCSP package
Description
AI
The ADP5063 charger is fully compliant with USB 3.0 and the USB Battery Charging 1.2 Compliance Plan Specification, and enables charging via the mini USB VBUS pin from a wall charger, car charger, or USB host port.The ADP5063 operates from a 4 V to 6.7 V input voltage range but is tolerant of voltages up to 20 V, thereby alleviating concerns about USB bus spikes during disconnection or connection scenarios.The ADP5063 features an internal field effect transistor (FET) between the linear charger output and the battery. This permits battery isolation and, therefore, system powering under a dead battery or no battery scenario, which allows immediate system function upon connection to a USB power supply.Based on the type of USB source, which is detected by an external USB detection chip, the ADP5063 can be set to apply the correct current limit for optimal charging and USB compliance.The ADP5063 has three factory-programmable digital input/out-put pins that provide maximum flexibility for different systems. These digital input/output pins permit a combination of features, such as input current limits, charging enable and disable, charging current limits, and a dedicated interrupt output pin.APPLICATIONSSingle cell LiFePO4portable equipmentPortable medical devicesPortable instrumentation devicesPortable consumer devices
