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RT9490

2-4 节电池、5A Buck-Boost 充电 IC

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RT9490 是可以 5A 电流对 2-4 节串联锂离子/聚合物电池进行充电管理和系统电源路径管理的 Buck-Boost 架构充电 IC，它采用低阻抗的功率开关进行开关模式的工作，效率高，节省充电时间，延长电池放电时间，通过 I²C 接口即可对其进行充电和系统相关的设定操作，是应用灵活的解决方案。
建议的接面温度范围为-40°C至130°C，而环境温度范围则为-40°C至85°C。

应用

智能手机、平板电脑和笔记本电脑
无人机
便携式设备和附件

Datasheet
Title	Version	Last Update	Download
RT9490: 2-4 节电池、5A Buck-Boost 充电 IC	V1.0	2022/11/21

Technical Documents
Title	Item Type	Last Update	Download
RT9490/RT9492 Application Note: Implement Charge System with the RT9490/RT9492	App. Note	2024/09/06
立锜精选产品 Product Tree 手册 [Aug., 2023]	Selection Guide	2023/08/07
RT9490 Application Note	App. Note	2022/11/18

Videos
Title	Last Update	Views
优化 45W 充电应用：立锜升降压切换式电池充电芯片	2024/05/20	29
新一代高整合立錡 USB-C PD 车充电源解决方案	2023/09/11	80
怎样让智能手机获得 100W+ 的充电能力	2021/11/24	284

Evaluation Boards
Title	Last Update	Download
5A 2-4 Cell Buck-Boost Switching Battery Charger Evaluation Board	2024/04/26

Part Number	Package Type	Package Qty.	Free Sample	Distributor	Stock	Buy From Authorized Distributor
RT9490WSC	WL-CSP2.93x3.46-56(BSC)	1,500	Request	Digikey	967	Buy
				Mouser	Lead-Time: 14 weeks	Not Available
				WPG	Lead-Time: 14 weeks	Not Available

Evaluation Board
Part Number	Distributor	Stock	Buy From Authorized Distributor
EVB_RT9490WSC	Digikey	1	Buy
	Mouser	Lead-Time: 14 weeks	Not Available
	WPG	Lead-Time: 14 weeks	Not Available

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