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RT9440 - 2-5 Series Cell Fuel Gauge

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Datasheet Details

Part number RT9440
Manufacturer Richtek
File Size 2.31 MB
Description 2-5 Series Cell Fuel Gauge
Datasheet download datasheet RT9440 Datasheet

General Description

The RT9440 device is a highly accurate and integrated, 2-to-5-series-cell fuel gauge and protection solution, with autonomous cell balancing, protection and charger control.

Overview

RT9440 2-5 Series Cell Fuel Gauge with Integrated Protector Solution for Li-Ion Battery Packs 1.

Key Features

  • State of Charge (SOC) Calculated by VoltaicGaugeTM with Current Sensing (VGCS).
  • Voltage Measurement: 3mV.
  • Current Measurement: 0.5%.
  • Battery Temperature Measurement: 1°C (TA = 0°C to 45°C).
  • Hardware Current Protection: 1mV.
  • Autonomous Cell Balance.
  • Configurable Protection Levels and Delay Times for Voltage, Temperature, and Current Protection.
  • Support Both Voltage-Base and SOC-Base Cell Balance.
  • 1.5V to 3.3V Configurable VOUT Power Supply.
  • H.

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