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NCP1851A - Fully Integrated Li-Ion Switching Battery Charger

Download the NCP1851A datasheet PDF (NCP1851 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for fully integrated li-ion switching battery charger.

Description

Battery Charger Input.

These two pins must be decoupled by at least 1 mF capacitor and connected together.

System Power Monitor input.

Features

  • under software supervision. An optional battery FET can be placed between the system and the battery in order to isolate and supply the system. The NCP1851 junction temperature and battery temperature are monitored during charge cycle, and both current and voltage can be modified accordingly through I2C setting. The charger activity and status are reported through a dedicated pin to the system. The input pin is protected against overvoltages. The NCP1851 also provides USB OTG support by boosting.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NCP1851-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number NCP1851A
Manufacturer onsemi
File Size 552.44 KB
Description Fully Integrated Li-Ion Switching Battery Charger
Datasheet download datasheet NCP1851A Datasheet

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Full PDF Text Transcription

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NCP1851, NCP1851A Fully Integrated Li-Ion Switching Battery Charger with Power Path Management and USB On-The-Go Support The NCP1851 is a fully programmable single cell Lithium−ion switching battery charger optimized for charging from a USB compliant input supply and AC adaptor power source. The device integrates a synchronous PWM controller, power MOSFETs, and the entire charge cycle monitoring including safety features under software supervision. An optional battery FET can be placed between the system and the battery in order to isolate and supply the system. The NCP1851 junction temperature and battery temperature are monitored during charge cycle, and both current and voltage can be modified accordingly through I2C setting.
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