XTB1056 Datasheet | XTX Technology

DESCRIPTION The XTB1056 is a cost-effective, high-integration linear charger for single cell Li-ion or Li-ion polymer batteries. The device support CC/CV charge from either USB port or AC adapter. Low BOM ponent requirement makes the whole system small in size. The charger accepts an input voltage up to 28V but is disabled when the input voltage exceeds the OVP threshold. The 28V rating eliminates the over-voltage protection circuit required in a low input voltage charger. The charge current and the end-of-charge current are programmable with external resistors. When the battery voltage is lower than typically 2.6V, the charger preconditions the battery with typically 20% of the programmed charge current. The XTB1056 implements two indication pins, PPR and CHG , allowing connection to micro-controller or LED to show device status. With open-drain structure, PPR pin stays low while input voltage is within operation range, and CHG stays low during charging state, else pins are in the high impedance state. The XTB1056 features thermal fold-back function to limit the charge current and protect the device from over junction temperature fault. The XTB1056 also integrates current monitor, UVLO, OVP function to prevent device from damage. FEATURES - Single-Chip for 1-cell Li-ion or Polymer Battery - Constant-Current/Constant-Voltage Battery Charge - No External MOSFET, Current Sensor or Diode Required - Low ponent Count and Cost - Programmable Charge Current - Programmable End-of-Charge Current - Charging Current Monitor and Thermal Fold-back - 2.6V Trickle Charge Threshold - With 6.8V or 10.5V Input Over-Voltage Protection - 28V Maximum Voltage for the Power Input - Input-based dynamic power management (VIN-DPM) - Short-circuit Protection - Protection of Reverse...