Introduction to Battery authentication ICs
Company Profile
Hainan Huanyu Technology Co., Ltd. is a high-tech enterprise providing one-stop customized chip solutions. We manufacture embedded chips designed for integration into a wide variety of electronic systems. Our products serve diverse sectors-including electric vehicles, industrial robotics, and solar energy-reliably meeting operational demands across various scenarios and providing robust core support for a broad range of electronic devices.
Battery authentication ICs Overview
Battery authentication ICs-also known as battery authentication chips or battery identification ICs-are specialized integrated circuits embedded within battery packs. They are designed to store battery identity information, perform authenticity verification, and store basic battery parameters. Their primary function is to establish an authentication mechanism between the battery and the host device, preventing non-genuine or substandard batteries from being used in the system. Simultaneously, they store essential production and performance data, providing the foundational information required by the battery management system (BMS).
Unlike standard battery management chips (BMS chips), battery authentication ICs focus primarily on identification and data storage. Some high-end products integrate encryption algorithms to enable two-way authentication, preventing counterfeit batteries from entering the market as genuine products and protecting the host device from damage caused by substandard batteries. Battery authentication ICs have now become a standard feature for genuine battery packs across various sectors, including consumer electronics, new energy vehicles, energy storage systems, and IoT devices.
This represents the core function of the battery authentication IC: host device manufacturers assign unique identifiers to genuine batteries, which are stored within the authentication IC. When a battery is installed, the device's main controller reads the identity information from the IC and verifies the battery's authenticity against preset rules. If authentication fails, some devices may limit the battery's power output or refuse to start altogether; this ensures operational safety and protects the market ecosystem for genuine brand-name accessories.
Battery authentication ICs – Specific IC Model Number
The bq2028, a 4Kb non-volatile memory (EEPROM) device featuring an integrated temperature sensor and LDO linear regulator, provides battery pack storage and temperature monitoring capabilities-complementing solutions such as the bq27505-E1 single-cell, system-side fuel gauge.
The bq2028 communicates with the bq27505-E1 fuel gauge via a single-wire HDQ interface, utilizing a protocol that minimizes software overhead while ensuring error-free data transmission.
Battery authentication ICs Parameters
The Battery authentication ICs parameters are as follows:
|
Communication interface |
HDQ |
|
Features |
4k-bit EEPROM |
|
Vin (typ) (V) |
3.7 |
|
Vin (max) (V) |
4.5 |
|
Power consumption (typ) (mW) |
20 |
|
Operating temperature range (°C) |
-40 to 85 |
|
Rating |
Catalog |
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