28V, 1A Li + Linear Battery Charger with Timer and LDO Mode
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The MP26058 is a linear, high performance single cell Li-Ion or Li-Polymer battery charger with on-chip input polarity reverse protection. By integrating high voltage input protection into the charger IC, the MP26058 can tolerate an input surge up to 28V. The LDO mode makes the MP26058 suitable for power up the system when battery is not present. The device features constant current (CC) and constant voltage (CV) charging modes with programmable charge currents (200mA to 1A), current blocking. The other features include the programmable battery full indication threshold and the LDO mode operation which keeps charging the battery after battery-full is asserted and stay in full-state as long as the valid input is maintained. MP26058 can provide load to the system if no battery is connected. For guaranteed safe operation, the MP26058 limits the die temperature to a preset value when the device is heated up due to limited PCB space. Other safety features are battery temperature monitoring, and programmable timer to prevent prolonged charging a dead battery. MP26058 is available in 10-pin 3mm x 3mm DFN packages.
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Features & Benefits
- Input Surge Up to 28V
- Input polarity reverse protection to - 16V
- Wide input operating range 2.8V ? 7V
- Adapter or USB Input
- Programmable Charge Current: 100mA to 1A
- Programmable timer
- 7V Input Over Voltage Protection
- 0.75% VBATT Accuracy over Temperature
- <1µA Battery Reverse Current
- 125µA Standby Current from VIN
- Battery Temperature Monitoring
- Automatic die temperature limiting
- Fault and Charge Status Indicators
- Soft-Start to limit inrush current
- Tiny 3mm x 3mm QFN Package
Active Part Numbers:
EV26058DQ-00A Evaluation Kit 28V, 1A Li + Linear Battery Charger With Trickle Charge Timer and LDO Mode EV Board
The EV26058DQ-00A is an evaluation board for the MP26058, a linear, high?performance single cell Li-Ion battery charger.
By integrating high voltage input protection into the charger IC, the MP26058 can tolerate an input surge up to 28V.
The MP26058 features constant current (CC) and constant voltage (CV) charging modes with programmable charge currents (200mA to 1A), Time out control battery full terminated control, thermal protection, battery temperature monitoring, reverse current blocking and trickle charge. The device also provides AC adapter power good and charge status indications to the system.