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RT9528 - I2C Programmable Linear Single Cell Li-Ion Battery Charger

General Description

The RT9528 is a programmable single-cell Li-ion battery charger with I2C programmable control I/F, Auto PowerPath Management IC and USB/AV Switch.

For the RT9528, there is no need to use external MOSFET.

The RT9528 enters sleep mode when supplies are removed.

Key Features

  • l 28V Maximum Rating for AC Adapter l Auto Power Path Management (APPM) l High-Speed USB Operation l USB/Audio/Video Switches l Negative Rail Audio Signal Path l I2C controlled Interface l Integrated 3.3V LDO for TS Circuitry l Integrated Power MOSFETs l Interrupt Status Indicator l Power Good and Charge Status Indicators l Under/Over Voltage Protection l Thermal Feedback Optimizing Charge Rate l 28-Lead WQFN Package l RoHS Compliant and Halogen Free.

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Datasheet Details

Part number RT9528
Manufacturer Richtek
File Size 1.00 MB
Description I2C Programmable Linear Single Cell Li-Ion Battery Charger
Datasheet download datasheet RT9528 Datasheet

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Full PDF Text Transcription (Reference)

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® RT9528 I2C Programmable Linear Single Cell Li-Ion Battery Charger with Auto Power-Path Management and USB/AV Switch General Description The RT9528 is a programmable single-cell Li-ion battery charger with I2C programmable control I/F, Auto PowerPath Management IC and USB/AV Switch. For the RT9528, there is no need to use external MOSFET. The RT9528 enters sleep mode when supplies are removed. The RT9528 optimizes the charging task by using a control algorithm including pre-charge mode, fast charge mode and constant voltage mode. The RT9528 includes termination, timer, charge current and VSYS settings via a serial I2C control I/F.