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ISL6251A - Low Cost Multi-Chemistry Battery Charger Controller

Download the ISL6251A datasheet PDF. This datasheet also covers the ISL6251 variant, as both devices belong to the same low cost multi-chemistry battery charger controller family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • ±0.5% Charge Voltage Accuracy (-10°C to +100°C).
  • ±3% Accurate Input Current Limit.
  • ±3% Accurate Battery Charge Current Limit.
  • ±25% Accurate Battery Trickle Charge Current Limit (ISL6251A).
  • Programmable Charge Current Limit, Adapter Current Limit and Charge Voltage.
  • Fixed 300kHz PWM Synchronous Buck Controller with Diode Emulation at Light Load.
  • Output for Current Drawn from AC Adapter.
  • AC Adapter Present Indicator.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ISL6251-Renesas.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number ISL6251A
Manufacturer Renesas
File Size 690.85 KB
Description Low Cost Multi-Chemistry Battery Charger Controller
Datasheet download datasheet ISL6251A Datasheet

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ISL6258 Narrow VDC Regulator/Charger Intersil
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Other Datasheets by Renesas

Part Number Description
ISL6251 Low Cost Multi-Chemistry Battery Charger Controller
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ISL6255 Highly Integrated Battery Charger
ISL6255A Highly Integrated Battery Charger
ISL6256 Highly Integrated Battery Charger

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.

View original datasheet text
DATASHEET ISL6251, ISL6251A Low Cost Multi-Chemistry Battery Charger Controller FN9202 Rev 3.00 March 13, 2014 The ISL6251, ISL6251A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries and NiMH batteries. High efficiency is achieved by a synchronous buck topology and the use of a MOSFET, instead of a diode, for selecting power from the adapter or battery. The low side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent system bus boosting. The constant output voltage can be selected for 2, 3 and 4 series Li-Ion cells with 0.5% accuracy over-temperature. It can be also programmed between 4.2V+5%/cell and 4.2V-5%/cell to optimize battery capacity.