BQ2023PWR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Function:	Battery Monitor
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Fault Protection:	--
Interface:	SDQ
Operating Temperature:	-20°C ~ 70°C (TA)
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	BQ2023

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Introduction
The BQ2023PWR (Power Management IC) is a specialized type of power management integrated circuit (PMIC) designed for use in battery-backed systems. It is a highly integrated, low power unit designed to protect and manage battery-powered systems. The BQ2023PWR PMIC integrates advanced power management and control logic along with precision monitoring and diagnostics. It also provides battery diagnostics, charger control and protection to dramatically reduce the need of external power management components.
Features
The BQ2023PWR features a wide-range of protective and monitoring features that help extend the life of a battery and improve system performance. It includes open-circuit protection, short-circuit protection, and over-load protection as well as charge and discharge protection. There are also thermal monitoring, under-voltage protection, over-voltage protection, and over-current protection. Additionally, the PMIC also integrates programmable charger top-off MOSFETs, over-temperature detection, over-current detection, and over-voltage detection. It also has a programmable output voltage and current limit for the charger and provides battery diagnostics status indicators.
Application Field
The BQ2023PWR is suitable for battery-backed systems such as notebook computers, handheld electronic devices, digital still cameras, MP3 players, and digital video cameras where an active battery protection and management is required. It is also highly suitable for battery-management applications that require a high level of flexibility, precision and performance. Typical applications for the BQ2023PWR include portable devices, chargers, and power adapters.
Working Principle
The BQ2023PWR is designed to work with a variety of battery chemistries and electricity sources. It uses a combination of hardware and software to optimize the management of the system design. The hardware allows the power control to operate with the lowest possible power consumption, while the software provides support for the over-voltage and over-temperature protection. The PMIC integrates precision monitoring and diagnostics, providing battery diagnostics, charger control and protection, and programmable charger top-off MOSFETs.The PMIC also implements a variety of protection mechanisms to ensure that the system can remain safe and secure from external damage or interference. The primary protection the PMIC provides is over-voltage protection, which prevents damage to the batteries by restricting the amount of output voltage the system will provide. Additionally, the PMIC implements short-circuit protection to prevent accidental damage to the batteries if the system is exposed to sudden excessive current, as well as over-load protection and charge and discharge protection. The PMIC also includes a number of precise sensors and monitors that report critical data such as the temperature of the batteries, the battery voltage, current, and energy level. This data is important information for the battery management system, providing precise and timely warnings when batteries are nearing their end of life or when they begin to experience long-term stress or damage. The PMIC also implements a closed-loop system that helps adjust the charging rate of the battery according to its current state, in order to prevent overcharging and other damage to the cells.The PMIC also communicates with the host system to establish and maintain an operation mode, depending on the system\'s requirements and the battery\'s condition. This includes defining battery global parameters such as charging profile, charging state threshold adjustment, charge current, battery sensing resistance, and DC-DC converter parameters. This data can then be used to configure the system to optimize power efficiency and extend battery life.
Conclusion
The BQ2023PWR is a highly integrated and low-power power management IC designed for use in battery-backed systems. It integrates precision monitoring and protective functions, enabling it to extend battery life and increase system performance. The PMIC offers comprehensive protection and monitoring, including over-voltage, short-circuit, overload, charge and discharge protection, as well as thermal monitoring, under-voltage protection, over-current protection, and open-circuit protection. Additionally, the PMIC includes a host communication feature which enables it to adjust the system settings according to the battery\'s current state and optimize power efficiency. The BQ2023PWR is suitable for a wide variety of battery-backed systems such as notebook computers, handheld electronic devices, digital still cameras, MP3 players, and digital video cameras.

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