BQ2092SN-A311

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Function:	Battery Monitor
Battery Chemistry:	Multi-Chemistry
Number of Cells:	--
Fault Protection:	--
Interface:	I²C
Operating Temperature:	0°C ~ 70°C (TA)
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	BQ2092

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IntroductionThe BQ2092SN-A311is a battery management integrated circuit (IC), providing system design flexibility and enhanced safety performance compared to its predecessors. This battery IC provides system level control, monitoring and field communication functions that can be used to manage battery cells. The BQ2092SN-A311 has the capabilities to monitor useful information such as battery temperature, capacity, current and voltage as well as to provide system level control, communication and diagnostics of battery systems.Application FieldThe BQ2092SN-A311 finds application in a wide range of applications, including, but not limited to, energy storage systems (ESS), automotive, automotive-hybrid and hybrid-electric vehicles (HEV, PHEV and EV), personal electronic devices (PEDs) and medical electronics. It is especially suitable for high-reliability, long-life, high-temperature battery systems and applications.The BQ2092SN-A311 is suitable for battery systems that require up to three programmable charge paths, as well as active cell balancing to enhance system battery life, safety and performance. The IC is also designed to provide monitoring, system control and communications for a wide range of applications where battery accuracy, stability and long life are mandatory.The BQ2092SN-A311 operates with a versatile logic and analog circuitry, allowing the device to effectively communicate with battery cell and external control systems with an SPI interface. The BQ2092SN-A311 also includes an onboard E-FUSE in order to provide accurate current measurements and safe cell protections when used in harsh thermal environments.Working PrincipleThe working principle of the BQ2092SN-A311 is based on a variety of system level control, monitoring and communication functions. The IC is capable of monitoring information such as battery temperature, capacity, current and voltage as well as providing system control, communication and diagnostics of battery systems.The BQ2092SN-A311 provides three programmable charge paths and can monitor cell voltages, current and temperature, as well as balance cell voltages by taking advantage of a two-cell (2S) or three-cell (3S) battery system. It also offers several passive and active safety features, including an E-fuse, surge protection, reverse discharging and over-voltage protection.Furthermore, the BQ2092SN-A311 also features communication interface options to enable various communication protocols such as I2C, SPI and SMBus, allowing the device to be used in a wide range of applications.ConclusionThe BQ2092SN-A311 is an integrated battery management IC developed by Texas Instruments. The device provides system design flexibility, enhanced safety performance and a variety of system level control, monitoring and communication functions. The IC is especially suitable for high-reliability, long-life, high-temperature battery systems, and can be used for a variety of applications such as energy storage systems, automotive and personal electronic devices. The working principle of the BQ2092SN-A311 is based on a variety of system level control, monitoring and communication functions, featuring an onboard E-fuse and communication capabilities that enable various communication protocols.

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