RT9467 Datasheet | Richtek

Description The RT9467 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 charge current is regulated through integrated sensing resistors. The RT9467 also features USB On-The-Go (OTG) support. RT9467 integrates D+/D- pin for USB host/charging port detection. The RT9467 optimizes for charging task by using a control algorithm to vary the charge rate for different modes, including pre-charge mode, fast charge mode (constant voltage and constant current). The key charge parameters are programmable through an I2C interface. The RT9467 will resume the charge cycle whenever the battery voltage falls below an internal recharge threshold, and can automatically enter sleep mode if the input power supply is removed. Other features include under-voltage protection, over voltage protection, thermal regulation and reverse leakage protection. The RT9467 is available in a WQFN-24L 4x4 package. Applications - Cellular Telephones - Personal Information Appliances - Tablet PC, Power Bank - Portable Instruments Ordering Information RT9467 Package Type QW : WQFN-24L 4x4 (W-Type) (Exposed Pad-Option 2) Lead Plating System Note : G : Green (Halogen Free and Pb Free) Richtek products are :  Ro HS pliant and patible with the current require- ments of IPC/JEDEC J-STD-020.  Suitable for use in Sn Pb or Pb-free soldering processes. Copyright ©2021 Richtek Technology Corporation. All rights reserved. DS9467-01 May 2021 Features - High Efficiency 5A, 1.5MHz Switching Charger with Output Inductor DFE252012F, TOKO  Charging Efficiency 90.25% at ICHG = 2A  Charging Efficiency 88.86% at ICHG = 3A  Charging Efficiency 84.2% at ICHG = 5A - Synchronous 1.5MHz/0.75MHz Fixed-Frequency PWM Controller with Up to 95% Duty Cycle - Power Path Management by BATFET Control - Support High Voltage Input...