BQ34Z110PWR Integrated Circuits (ICs)

Series:	Impedance Track™
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Not For New Designs
Moisture Sensitivity Level (MSL):	--
Function:	Battery Monitor
Battery Chemistry:	Lead Acid
Number of Cells:	--
Fault Protection:	--
Interface:	HDQ, I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	14-TSSOP
Base Part Number:	BQ34Z110

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• Introduction

The BQ34Z110PWR is a power-management integrated circuit (PMIC) used to control and monitor various functions related to battery systems. It is used to manage primary and secondary batteries, as well as USB-based power devices. It is designed to be an ideal solution for applications such as laptop computers, tablets, and other mobile devices that have both battery and USB-based power solutions. The BQ34Z110PWR is an advanced reverse-polarity protection device that also integrates a low-ohmic current sense resistor, as well as an open-drain digital-to-analog converter (DAC) for voltage scaling. In addition to controlling rechargeable batteries, the device also provides protection against over-voltage, over-current, and thermal overloads.

• Application field

The BQ34Z110PWR is typically used in laptop computers, tablets, and other mobile devices that use both battery and USB-based power. It is also suitable for any application that requires battery management, including industrial applications such as UAVs, robots, and home automation systems. It is particularly beneficial in applications that require high voltage inputs, as the device offers improved reverse-polarity protection and open-drain digital-to-analog converters (DACs) for voltage scaling.

• Working principle

The BQ34Z110PWR is designed to control and monitor various functions related to battery systems. It accepts both system-level power supplies and USB charging inputs, and can draw up to 1.5 amps of power from a source. It is designed to protect against reverse-polarity, over-voltage, over-current, and thermal overloads. The device also incorporates a low-ohmic current sense resistor to monitor the current flow and a DAC to sense the voltage of the battery.The device features a charge-protection circuit that is activated when the battery voltage exceeds a preset threshold. The device is then able to monitor and control the charge state of the battery. The device can also be used to provide temperature compensation and open-drain digital-to-analog converters (DACs) to monitor and control the voltage.

• Conclusion

The BQ34Z110PWR is a highly advanced power-management integrated circuit (PMIC) that offers improved protection against reverse-polarity, over-voltage, over-current, and thermal overloads. Its low-ohmic current sense resistor and open-drain digital-to-analog converters (DACs) provide voltage scaling, while its temperature compensation and charge-protection circuits allow it to monitor and control the charge state of batteries. It is particularly suitable for applications such as laptop computers, tablets, and other mobile devices that require both battery and USB-based power solutions.

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