XC6806A43511-G, Battery Charger, 1 Cell, Li-Ion, Li-Pol, 5 V Input, 4.35 V/385 mA Charge, -40 to 85 °C, LGA-B01-10

XC6806A43511-G is a XC6806 series lithium-ion linear charger IC with shutdown and current path function. This is equipped with a system power supply function, this is a linear charger IC for single-cell lithium ion batteries and lithium polymer batteries. The current path function gives system power supply priority over charging the lithium ion battery. The charge current can be adjusted with an external resistance, and an internal limit circuit with an input current of 450mA automatically reduces the charging current based on the load current that flows to the system. The lithium ion battery temperature is monitored in conformance with JEITA, and by controlling the charge voltage and charge current as appropriate for the temperature, the battery can be charged safely. Application includes wearable devices, Bluetooth headsets, wireless earphone/Bluetooth earphone, hearing aid, health care devices, IoT sensors.

• Operating voltage range from 4.5 to 5.5V, charge voltage range from 3.50V to 4.45V ±30mV
• Charge current range from 10mA to 385mA (can be set by external resistance)
• 450mA, fixed internally input current limit, 0.1µA (attached battery only) battery sink current
• Current path, JEITA conforming thermistor detect, shutdown functions
• Charge timer, UVLO, thermal control, reverse current prevention protection function
• 0.3V SD low level voltage, 4.2 UVLO threshold voltage (rising)
• 1.5mA minimum trickle charge current (RSET=30Kohm)
• 6mA typical charge current on cold operation (RSET=30Kohm)
• 0.1µA BAT sink current at UVLO (typ, VIN=VSD=0V, IOUT=0A)
• USP-10B, LGA-10B01 package, operating ambient temperature range from -40 to 85°C