28V, Li+ Single-Cell Battery Charger with USB/AC-Adapter Input

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Product Description

The MP26056  is a linear, high performance single cell Li-Ion or Li-Polymer battery charger with dual programmable  constant current set. By integrating high voltage input protection into the charger IC, the MP26056 can tolerate an input surge up to 28V. The device features constant current (CC) and constant voltage (CV) charging modes, reverse current blocking and trickle charge. Other features include the programmable battery full threshold supporting dual AC/USB input by automatically changing to a lower charge current when the USB is the power supply. The MP26056 also provides ACOK and charge status indications to the system. For guaranteed safe operation, the MP26056 limits the die temperature to a preset value when the device is heated up due to limited PCB space. Other safety features include battery temperature monitoring and programmable timer to prevent prolonged charging a dead battery. MP26056 is available in 10-pin 3mm x 3mm QFN packages.

Product Features

  • Complete Solution for Charging Single-Cell Lion-Ion Battery
  • Input Surge Up to 28V
  • Dual USB/AC-Adapter Input with Auto Charge-Current Control
  • Wide input operating range 3.5V to 6.5V
  • 7V Input Over-Voltage Protection
  • Programmable Charge Current: 200mA to 1A
  • 80μA Idle Current with USB Input
  • 0.75% VBATT Accuracy over Temperature
  • <1µA Battery Reverse Current
  • Automatic die temperature limiting
  • Fault and Charge Status Indicators
  • Internal Soft-Start to limit inrush current


  • Icharge (max) (A)1
  • Vbatt (max) (V)4.2
  • Operating Vin (max) (V)6.8
  • Absolute Vin (max) (V)28
  • Vbatt (min) (V)4.2
  • NTC MonitoringNo
  • Operating Vin (min) (V)2.5
  • Special FeaturesThermal Regulation, USB Compatible
  • GradeCatalog
  • Charge typeCC/CV Linear
  • Battery TypeLi-Ion, Li-Polymer
  • Control InterfaceStandalone
  • Trickle ChargeNo
  • Charge Status Yes
  • TimerNo
  • Power PathNo
  • USB ModeYes
  • PackageQFN-10 (3x3)