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BQ24157S - One-Cell Li-Ion Charger

Description

The bq24157S is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications.

The charge parameters can be programmed through an I2C interface.

Features

  • 1 Integrated Power FETs for up to 1.55-A Charge Rate.
  • Spread Spectrum Frequency Control for Improved EMI Performance.
  • High-Accuracy Voltage and Current Regulation.
  • Input Current Regulation Accuracy: ±5% (100 mA and 500 mA).
  • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C).
  • Charge Current Regulation Accuracy: ±5%.
  • Factory Test-Mode for GSM Calibration Without a Battery.
  • Input Voltage Based Dynamic Power Ma.

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Other Datasheets by Texas Instruments

Part Number Description
BQ24157 Fully Integrated Switch-Mode Charger
BQ24150 One-Cell Li-Ion Charger
BQ24150A One-Cell Li-Ion Charger
BQ24151 One-Cell Li-Ion Charger
BQ24151A One-Cell Li-Ion Charger

Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community bq24157S SLUSB76B – FEBRUARY 2013 – REVISED MAY 2015 bq24157S 1.55-A Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support 1 Features •1 Integrated Power FETs for up to 1.55-A Charge Rate • Spread Spectrum Frequency Control for Improved EMI Performance • High-Accuracy Voltage and Current Regulation – Input Current Regulation Accuracy: ±5% (100 mA and 500 mA) – Charge Voltage Regulation Accuracy: ±0.
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