ystem-side(tm) fuel gauge with integrated Sense Resistor | battery gas gaugePower management
The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.
The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).
Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.
Features for the BQ27421-G1
- Single-Cell Li-Ion Battery Fuel Gauge
- Resides on System Board
- Supports Embedded or Removable Batteries
- Powered Directly from Battery with Integrated
LDO - Low-Value Integrated Sense Resistor
(7 mΩ, Typical)
- Easy-to-Configure Fuel Gauging Based on
Patented Impedance Track™ Technology- Reports Remaining Capacity and State-of-
Charge (SOC) with Smoothing Filter - Automatically Adjusts for Battery Aging, Self-
Discharge, Temperature, and Rate Changes - Battery State-of-Health (Aging) Estimation
- Reports Remaining Capacity and State-of-
- Microcontroller Peripheral Supports:
- 400-kHz I2C Serial Interface
- Configurable SOC Interrupt or
Battery Low Digital Output Warning - Internal Temperature Sensor or
Host-Reported Temperature
5.0
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Reviews
Q How to make a payment?
E****R 18/11/2024
A We accept various payment methods including bank transfers, credit cards, and PayPal. Please refer to our payment page during checkout for detailed instructions on how to complete your payment. If you have any questions or need assistance with payment, please contact our customer support team.
18/11/2024
Q How will the products be shipped?
T****k 16/08/2024
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16/08/2024
Q How is warranty provided?
L****Y 08/05/2024
A We offer a warranty on all of our products. The warranty period and conditions vary depending on the product category. For specific warranty information, please refer to the product page or your purchase agreement. If you encounter any issues with a product during the warranty period, please contact our customer service team with your proof of purchase, and we will guide you through the warranty claim process.
08/05/2024
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The build and materials used are top-notch, making it a reliable investment
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