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RT9460 - Switch-Mode Single Cell Li-Ion Charger

Datasheet Summary

Description

The RT9460 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, and high accuracy voltage regulation and charge termination circuits.

Features

  • USB OnThe-Go (OTG) support. The RT9460 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 are programmable via the I2C interface. The RT9460 resumes the charge cycle whenever the battery voltage falls below an internal recharge threshold, and automatically enters sleep mode when the input power supply is removed. Other features include under-voltage.

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Datasheet preview – RT9460

Datasheet Details

Part number RT9460
Manufacturer Richtek
File Size 357.37 KB
Description Switch-Mode Single Cell Li-Ion Charger
Datasheet download datasheet RT9460 Datasheet
Additional preview pages of the RT9460 datasheet.

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Full PDF Text Transcription

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® RT9460 Switch-Mode Single Cell Li-Ion Charger with USB-OTG General Description The RT9460 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, and high accuracy voltage regulation and charge termination circuits. Besides, the charging current is regulated through the integrated sensing resistors. The RT9460 also features USB OnThe-Go (OTG) support. The RT9460 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 are programmable via the I2C interface.
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