RT9466USB 傳輸應用::熱點頻道::大聯大控股





• High Efficiency 5A, 1.5MHz Switching Charger(Charger Inductor DFE252012, TOKO)
90.25% Charger Efficiency at ICC = 2A
88.86% Charger Efficiency at ICC = 3A
84.2% Charger Efficiency at ICC = 5A
• Synchronous 0.75/1.5MHz Fixed Frequency PWM Controller with Up to 95% Duty Cycle
• Power Path Management / BATFET Control
• Support High Voltage Input (9V / 12V)
• Support High Voltage Input Adaptor (Pump Express2.0)
• Support IR Compensation Function from Charger Output to Cell Terminal.
• Optimize the Input Sourcing Capability withoutOverload.
 IIN Measurement
 ILIM Pin Current Selection
AICR Setting through I2C
• Shipping Mode for Battery Leakage Reduction
Wake Up System by QON Pin
Exit Shipping Mode by QON Pin
System Reset by QON Pin
• Automatic Charging for Standalone Applications
• Average Input Current Regulation (AICR) :0.1 to 3.25A per 50mA Step
• Charge Current Regulation Accuracy : ± 7%
• Charge Voltage Regulation Accuracy : ± 1% (0 to 85°C)
• Protection for Overall System Considerations
• Thermal Regulation for Current Reduction and Over-Temperature Protection
Input Over-Voltage Protection
Input Bad Adaptor Protection
Output Battery Over-Voltage Protection
• Support Various ADC Conversion for VBUS, VBAT, VSYS, REGN, TS_BAT, IBAT, TEMP_JC
• IRQ Output for Communication with I2C (Watch Dog/ Polling Function)
• RoHS Compliant and Halogen Free


• Cellular Telephones
• Personal Information Appliances
• Tablet PC, Power Bank
• Portable Instruments


The RT9466 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for portable applications. It integrates a synchronous PWM controller, power MOSFETs, input current sensing and regulation, high-accuracy voltage regulation and charge termination. The charging current is regulated through integrated sensing resistors. The RT9466 also features USB On-The-Go (OTG) support.