Richtek EVB_RT9458WSC

能源管理充电器董事会

Overview

The RT9458WSC 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, high accuracy voltage regulation and charge termination circuits. The RT9458WSC also features USB On-The-Go (OTG). The RT9458WSC optimizes the charging task by using a control algorithm to vary the charge rate via different modes, including pre-charge mode, fast charge mode, and constant voltage mode. The key charge parameters can be programmed via the I2C interface. The RT9458WSC resumes the charge cycle whenever the battery voltage falls below an internal threshold and automatically enters sleep mode when the input power supply is removed. Other features include under-voltage protection, over-voltage protection, thermal regulation and reverse leakage protection. The RT9458WSC is available in the small WL-CSP-20B 2.1x1.87 (BSC) package.

Features

Bulk Package
Power Management Type
Battery Charger Function
RT9458 Utilized IC / Part
Board(s) Supplied Contents