The MAX17301–MAX17303/MAX17311–MAX17313 is a 24μA IQ stand-alone pack-side fuel gauge IC with protector and optional SHA-256 authentication for 1-cell lithium-ion/polymer batteries.
The IC monitors the voltage, current, temperature, and state of the battery to provide against over/undervoltage, overcurrent, short-circuit, over/undertemperature and overcharge conditions protection using external high-side N-FETs, and provides charging prescription to ensure that the lithium-ion/polymer battery operates under safe conditions prolonging the life of the battery.
To prevent battery pack cloning, the IC integrates SHA-256 authentication with a 160-bit secret key. Each IC incorporates a unique 64-bit ID.
The fuel gauge uses ModelGauge m5 algorithm that combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge to provide industry-leading fuel-gauge accuracy.
The IC automatically compensates for cell aging, temperature, and discharge rate, and provides accurate state-of-charge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions.
Dynamic power functionality provides the instantaneous maximum battery output power which can be delivered to the system without violating the minimum system input voltage.
A Maxim 1-Wire or 2-wire I2C interface provides access to data and control registers. The IC is available in a lead-free, 3mm x 3mm 14-pin TDFN and 1.7mm x 2.5mm 15-bump 0.5mm pitch WLP packages.類型 | 描述 | 全選 |
---|---|---|
包裝 | 託盤 | |
產品狀態 | 在售 | |
功能 | 電量計 | |
電池化學 | 鋰離子/聚合物 | |
單元格數量 | 1 | |
故障保護 | 過流,超温,過/欠壓,短路 | |
界面 | 1-Wire,I²C | |
工作温度 | -40°C ~ 85°C(TA) | |
安裝類型 | 表面貼裝型 | |
包裝 / 盒 | 14-WFDFN 裸露焊盤 | |
供應商 設備封裝 | 14-TDFN(3x3) |
Analog Devices Inc./Maxim Integrated
Maxim Integrated 現已成為 Analog Devices 的一部分。 它們相結合,提供了一套擴展的高性能混合信號和電源管理技術,幫助客户在各個市場取得成功。 其結果是提供了一系列解決最複雜問題的解決方案,從直流到 100 GHz,從納瓦到千瓦,從傳感器到雲。 在 Analog Devices 產品頁面上了解有關 Analog Devices 擴展產品組合的更多信息。
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