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Cellular Phones
Cellular Phones
Digital Cameras
PDAs and Smart Phones
Portable Instruments
28V Maximum Rating for AC Adapter with Over-Voltage Protection 7V
28V Maximum Rating for AC Adapter with Over-Voltage Protection 7V
Internal Integrated Power FETs
AC Adapter Power Good Status Indicator
Programmed Charging Current
Charge Status Indicator
Programmed End of Charge Current
Under-Voltage Protection
Thermal Feedback Optimizing Charge Rate
RoHS Compliant and Halogen Free
Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection
The RT9526A is a fully integrated low cost single cell Li-ion battery charger ,ideal for portable applications. The RT9526A is capable of being powered up ,from AC adapter and USB (Universal Serial Bus) port inputs. The RT9526A enters ,sleep mode when supplies are removed. The RT9526A optimizes the charging task ,by using a control algorithm including preconditioning mode, fast charge mode, ,and constant voltage mode. The charging task will remain in constant voltage ,mode to hold the battery in a full charge condition. The charge current can be ,programmed with an external resistor. The internal thermal feedback circuitry ,regulates the die temperature to optimize the charge rate under all ambient ,temperatures. The RT9526A features 28V maximum rating voltage for VIN. ,Under-voltage protection and over-voltage protection are provided for the AC ,adapter supply.The RT9526A is available in the WDFN-8L 2x3 and SOT-23-6 package ,to achieve best solution for PCB space and total BOM cost saving considerations.,,
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