Datasheet4U Logo Datasheet4U.com

RT9422A - Pack Side Single Cell Fuel Gauge

Datasheet Summary

Description

The RT9422A Li-Ion/Li-Polymer battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell battery packs.

The RT9422A resides within the battery pack and manages a non-removable battery or removable battery pack.

Features

  • of the RT9422A can be used to indicate more serious faults via the SAFE pin. This pin can be used to blow an in-line fuse to permanently disable the battery pack from charging or discharging. The SAFE pin also can used to detect secondary protection IC status and log battery status in the NVM when protection be triggered. To prevent battery pack cloning, the RT9422A integrates SHA-1/HMAC authentication with a 128-bit secret key. Features.
  • Support Pack Side Fuel Gauging.
  • Battery Fuel G.

📥 Download Datasheet

Datasheet preview – RT9422A

Datasheet Details

Part number RT9422A
Manufacturer Richtek
File Size 1.11 MB
Description Pack Side Single Cell Fuel Gauge
Datasheet download datasheet RT9422A Datasheet
Additional preview pages of the RT9422A datasheet.

📁 Similar Datasheet

  • RT9401A - 5Bit VID Reference Generator (Richtek Technology)
  • RT9401B - 5Bit VID Reference Generator (Richtek Technology)
  • RT9401C - 6Bit VID Reference Generator (Richtek Technology)
  • RT9401D - 5-Bit VID Reference Generator (Richtek Technology)
  • RT9403 - I2C Programmable High Precision Reference Voltage Generator (Richtek Technology)
  • RT9403A - High Precision Reference Voltage Generator (Richtek Technology)
  • RT9403B - High Precision Reference Voltage Generator (Richtek Technology)
  • RT9403C - High Precision Reference Voltage Generator (Richtek Technology)
  • RT9403D - High Precision Reference Voltage Generator (Richtek Technology)
  • RT9403E - High Precision Reference Voltage Generator (Richtek Technology)
Other Datasheets by Richtek
  • RT9426 - System Side Single Cell Fuel Gauge
  • RT9426A - System Side Single Cell Fuel Gauge
  • RT9427 - System Side Single Cell Fuel Gauge
  • RT9427R - Li-Ion/Li-Polymer Battery Fuel Gauge
  • RT9428 - Host-Side Single Cell Lithium Battery Gauge
  • RT9440 - 2-5 Series Cell Fuel Gauge
  • RT9455 - Switch-Mode Single Cell Li-Ion Battery Charger
  • RT9460 - Switch-Mode Single Cell Li-Ion Charger

Full PDF Text Transcription

Click to expand full text
RT9422A Pack Side Single Cell Fuel Gauge General Description The RT9422A Li-Ion/Li-Polymer battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell battery packs. The RT9422A resides within the battery pack and manages a non-removable battery or removable battery pack. The RT9422A reports StateOfCharge, StateOfHealth, FullChargeCapacity, TimeToEmpty and CycleCount based on the Voltaic Gauge with Current Sensing (VGCS) algorithm by using the voltage difference between battery voltage and OCV to calculate the increasing or decreasing SOC, with current sensing compensation to report battery SOC. Voltaic Gauge with Current Sensing algorithm can support smoothly SOC and does not accumulate error with time and current.
Published: |