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bq24640 - Super Capacitor Charger

General Description

The bq24640 device is a highly integrated switchedmode super capacitor charge controller.

The device offers a constant-frequency synchronous PWM controller with high accuracy charge current, voltage regulation, and charge status monitoring.

Key Features

  • 1 Charge Super Capacitor Pack From 2.1 V to 26 V.
  • CC/CV Charge Profile From 0 V Without Precharge.
  • 600-kHz NMOS-NMOS Synchronous Buck Controller.
  • Over 90% Efficiency for up to 10-A Charge Current.
  • 5-V to 28-V VCC Input Voltage Range.
  • Accuracy.
  • ±0.5% Charge Voltage Regulation.
  • ±3% Charge Current Regulation.
  • High Integration.
  • Internal Loop Compensation.
  • Internal Digital Soft Start.
  • Safety.

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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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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design bq24640 SLUSA44A – MARCH 2010 – REVISED JULY 2015 bq24640 High-Efficiency Synchronous Switched-Mode Super Capacitor Charger 1 Features •1 Charge Super Capacitor Pack From 2.1 V to 26 V • CC/CV Charge Profile From 0 V Without Precharge • 600-kHz NMOS-NMOS Synchronous Buck Controller • Over 90% Efficiency for up to 10-A Charge Current • 5-V to 28-V VCC Input Voltage Range • Accuracy – ±0.