Richtek has introduced the RT9492, a highly integrated 5 A Buck-Boost switching battery charger designed to optimize charging for 2 to 4 cell Li-ion and Li-polymer batteries. This innovative solution is tailored for 45 W applications, including Chromebooks, drones, portable vacuum cleaners, and POS systems.
Key highlights of the RT9492 include its I²C serial interface for charging and system settings, providing flexibility in various applications. With an impressive efficiency of up to 96.7% in 2-cell battery applications, it supports dual input control and USB On-The-Go functionality, ensuring precise charging resolution for USB-PD devices.
Notable features of the RT9492:
- Low Battery Discharge: With only 2.5µA of battery discharge current in shipping mode, the RT9492 extends battery life during shipment for over a month.
- Enhanced Charging Capacity: A high State of Charge (SoC) accuracy of +/- 0.3% enables an additional 2.35% charging capacity for 2-cell battery applications.
- Fast Role Swap: The Fast Role Swap function supports seamless data and power transmission for USB-C devices.
- Wide Compatibility: The I²C interface supports 1.2 V low voltage communication with a 5nm application processor, making the charger compatible with a wide range of devices.
Richtek’s RT9492 offers a complete solution for efficient charging and system power path management, setting a new standard for 45 W applications.
