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ADP3808A - High Efficiency Switch Mode Li-Ion Battery Charger

Datasheet Summary

Description

Symbol Value Unit Supply Voltage Input VCC 0.3 to +25 V Power Ground PGND 0.3 to +0.3 V Bootstrap Supply Voltage Input BST 0.3 to +30 V BST to Switching Node BST to SW 0.3 to +6 V Switching Node SW 4 to +25 V High Side Driv

Features

  • Selectable 3.
  • Cell or 4.
  • Cell Operation.
  • Adjustable 4.0 V to 4.5 V Per Cell.
  • High End-of-Charge Voltage Accuracy.
  • ±0.4% @ 25°C.
  • ±0.6% @ 5°C to 55°C.
  • ±0.8% @ 0°C to 100°C.
  • Programmable Charge Current, Including Trickle Charge.
  • Bootstrapped Synchronous Drive for External N.
  • Channel MOSFETs.
  • Programmable Oscillator Frequency.
  • This is a Pb.
  • Free Device.

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Datasheet preview – ADP3808A

Datasheet Details

Part number ADP3808A
Manufacturer ON Semiconductor
File Size 201.46 KB
Description High Efficiency Switch Mode Li-Ion Battery Charger
Datasheet download datasheet ADP3808A Datasheet
Additional preview pages of the ADP3808A datasheet.

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Full PDF Text Transcription

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ADP3808A High Efficiency Switch Mode Li-Ion Battery Charger The ADP3808A is a complete Li-Ion battery charging controller for 3− or 4−cell battery packs. The device combines accurate final battery charge voltage control with constant current control to simplify the implementation of constant-current, constant-voltage (CCCV) chargers. The final battery charge voltage is programmable between 4.0 V to 4.5 V per cell, allowing the charging of various cell types. The charge current is programmable over a wide range from trickle charging to full charging. The system current sense amplifier includes an ac adapter detection output to signal that the adapter is connected.
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