loading

Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection

RT9526A

Update Alert Share

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.

Applications

  • Cellular Phones
  • Digital Cameras
  • PDAs and Smart Phones
  • Portable Instruments
Key Spec.
RT9526A
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 6
Battery Charge Voltage (max) (V) 4.2
Battery Charge Current (max) (A) 1
Status Indicator Yes
Charger Type Linear
Input Source AC Adapter;USB
Features Enable Input;OVP;Power Good;UVP
Package Type SOT-26;WDFN2x3-8
Built-in Power MOSFETs Yes
Features
  • 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
Datasheet
TitleLast UpdateShareDownload
Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection2010/09/01
Reliability
Title Last Update ShareDownload
Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection 2015/05/19
Technical Documents
TitleLast UpdateShareDownload
Power Mangement Components for Lithium-Ion Battery Powered Applications2018/11/15
Additional Documents
Title Last Update ShareDownload
Power Management Components for Lithium-Ion Battery Powered Applications
鋰離子電池電源管理IC選擇指南
2019/03/04
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9526AGESOT-263000 Not available Buy from Distributor
TOP