RT9465 Datasheet | Richtek

Description The RT9465 is a switch-mode single cell li-Ion/Li-Polymer battery charger for portable applications. It integrates a synchronous PWM controller and high accuracy voltage regulation. Besides, the charging current is regulated through the integrated sensing MOSFET. The RT9465 optimizes the charging task by using a control algorithm to vary the charge rate via different modes, including fast charge mode and constant voltage mode. The key charge parameters are programmable via the I2C interface. The junction temperature is monitored by ADC. Other features include under-voltage protection, overvoltage protection (including VBAT and VIN side), thermal regulation and MIVR. The RT9465 is available in a WQFN-16L 3x3 package. Ordering Information Package Type QW : WQFN-16L 3x3 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are :  Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in Sn Pb or Pb-free soldering processes. Marking Information K7=YM DNN K7= : Product Code YMDNN : Date Code Features - Input Voltage Range : 3.9V to 14V - Synchronous 1.5MHz/0.75MHz Switching Frequency 95% Max. Duty - Up to 92%/94% Peak Efficiency at VIN = 9V/5V - VIN Over-Voltage Protection : 14.5V - VIN Under-Voltage Protection : 3.8V - VIN Under-Voltage-Lock-Out : 3.3V - Fault Detection (VIN and VBAT Monitoring) - Programmable Minimum Input Voltage Range : 3.9V to 13.4V (0.1V/Step) - Programmable Battery Voltage Regulation Range : 3.8V to 5.06V (0.02V/Step) - Programmable End of Charge Range : 0.6A to 1.6A (0.1A/Step) - Programmable Average Output Current Regulation Range : 0.6A to 3A (0.1A/Step) - Junction Temperature Monitor : 60°C to 116°C (4°C/ Step) - VIN Minimum Input Voltage Regulation (MIVR) : ±3% - Battery CV (Constant Voltage) Regulation : ±1% - Output CC (Constant Current) Regulation, Output Current < 1A : ±100m A (VIN = 9V/12V) - Output CC (Constant Current) Regulation,...