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RT9535 - High Efficiency Switching Mode Battery Charger

Description

The RT9535 is a PWM switch mode battery charger controller to fast charge single or multiple Li-Ion, NiMH and NiCd batteries, using constant current or constant voltage control.

Maximum current can be easily programmed by external resistor.

Features

  • Fast Charging for Li-Ion, NiMH and NiCd Batteries.
  • Adjustable Battery Voltages from 2.5V to 22V.
  • High Efficiency : Up to 95%.
  • Charging Current Programmed by Resistor.
  • Precision 0.5% Charging Voltage Accuracy.
  • Provide 5% Charging Current Accuracy.
  • Input Current Limit Maximizes Charging Rate.
  • 500kHz Switching Frequency.
  • Flag Indicates Li-Ion Charge Completion.
  • Auto Shutdown with Adapter Removal.
  • Only 10A Battery Reverse Current when Idle App.

📥 Download Datasheet

Datasheet Details

Part number RT9535
Manufacturer Richtek Technology
File Size 924.69 KB
Description High Efficiency Switching Mode Battery Charger
Datasheet download datasheet RT9535 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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RT9535 High Efficiency Switching Mode Battery Charger General Description The RT9535 is a PWM switch mode battery charger controller to fast charge single or multiple Li-Ion, NiMH and NiCd batteries, using constant current or constant voltage control. Maximum current can be easily programmed by external resistor. The constant voltage output can support up to 22V with 0.5% accuracy. A third control loop limits the input current drawing from the adapter during charging. This allows simultaneous operation of the equipment and fast battery charging without over loading to the adapter. The RT9535 can charge batteries from 2.5V to 22V with dropout voltage as low as 0.4V. A logic output indicates Li-Ion full charge when current drops to 17% of the full-scale programmed charge current.
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