RT9478M - 24V Input for 2 to 4 Cell NVDC Buck-Boost Battery Charge Controller

Richtek

RT9478M Datasheet Preview — Preview of RT9478M PDF

Datasheet Details

Part number	RT9478M
Manufacturer	Richtek ↗
File Size	1.35 MB
Description	24V Input for 2 to 4 Cell NVDC Buck-Boost Battery Charge Controller
Datasheet	RT9478M-Richtek.pdf

RT9478M Product details

Description

The RT9478M is a 4-switch bidirectional buck-boost Narrow Voltage DC (NVDC) charge controller, designed to charge 2- to 4-cell batteries from a wide range of DC power sources, including USB-C Power Delivery (PD) sources, conventional AC-DC charger adapters, and mobile batteries.

Features

Programmable Frequency: 720kHz/800kHz/1.2MHz.
Wide Input Voltage Range from 3.8V to 24V.
Average Input Current Regulation (AICR).
Minimum Input Voltage Regulation (MIVR).
Support 10m and 5m Sensing Resister.
High Accuracy for 2% Battery Charge Current and 0.5% Voltage Regulation.
Wide Battery Regulation Voltage Range from 5V to 19.2V.
Support USB On-The-Go (OTG).
5V.

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Published: Oct 27, 2025 |