BQ20Z95DBT

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BQ20Z95DBT

IC GAS GAUGE LI-ION 2-4C 44TSSOP

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規格

Package Bulk,Tube
Series Impedance Track™
ProductStatus Not For New Designs
Function Multi-Function Controller
BatteryChemistry Lithium Ion/Polymer
NumberofCells 2 ~ 4
FaultProtection Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface SMBus
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 44-TFSOP (0.173, 4.40mm Width)

概述

Description

The BQ20Z95DBT is a battery management integrated circuit (IC) designed by Texas Instruments. It is primarily used in smart battery packs to manage and monitor lithium-ion and lithium-polymer batteries. This device integrates several features crucial for battery pack safety, longevity, and performance optimization.
Key features of the BQ20Z95DBT include:
1. Fuel Gauging: Uses Impedance Track technology to provide precise battery capacity and state-of-charge (SoC) measurements, improving the accuracy of battery monitoring.

2. Protection: Offers over-voltage, under-voltage, over-current, and short-circuit protection to ensure the safety and reliability of the battery pack.
3. Data Communication: Supports SMBus 1.1 interface for data exchange between the battery and host systems, facilitating smart battery applications.
4. Temperature Monitoring: Monitors battery temperature with thermistor inputs to prevent overheating and enhance safety.
5. Battery Authentication: Includes built-in support for battery pack authentication, ensuring the use of approved battery packs and minimizing the risk of counterfeit batteries.
The BQ20Z95DBT is suitable for applications requiring reliable battery management, such as in laptops, portable medical devices, and other consumer electronics.

Features

The BQ20Z95DBT is a battery management IC from Texas Instruments, designed for smart battery pack applications. Key features include:
1. Impedance Track™ Technology: Provides precise state-of-charge (SOC) and state-of-health (SOH) calculations, extending battery life and reliability.
2. Fuel Gauging: Accurate measurement of remaining battery capacity, compensating for age, temperature, and discharge rate variations.
3. Protections: Integrated protection features for over-voltage, under-voltage, over-current, short-circuit, and over-temperature conditions.
4. Communication Interface: Supports SMBus v1.1, allowing for robust communication between the battery and host device for monitoring and control.
5. Data Flash Memory: Customizable memory for storing battery-specific parameters and configuration settings.
6. LED Display Driver: Enables direct driving of external LEDs for visual state-of-charge indication.
7. Calibration and Self-Test: In-built functions for calibration, ensuring consistent accuracy over the battery's lifetime.
8. Low Power Consumption: Designed to optimize power usage, thus extending overall battery life.
These features make the BQ20Z95DBT suitable for applications in consumer electronics, medical devices, and portable instruments where advanced battery management is essential.

Package

The BQ20Z95DBT is packaged in a TSSOP (Thin Shrink Small Outline Package) with 38 pins. This type of package is designed to offer a compact size suitable for applications requiring battery management, typically in portable electronic devices.

Pinout

The BQ20Z95DBT is a battery management IC from Texas Instruments, designed for smart battery pack applications. It comes in a 38-pin TSSOP package. The primary functions of the BQ20Z95DBT include:
1. Fuel Gauging: It accurately monitors the state of charge (SOC) and state of health (SOH) of the battery pack using impedance tracking technology.
2. Protection: It provides over-voltage, under-voltage, over-current, short-circuit, and over-temperature protection to ensure battery safety.
3. Data Communication: It supports SMBus communication protocol for interaction with other devices and systems.
4. Cell Balancing: The IC helps in maintaining balanced cell voltages within the battery pack.
5. Calibration and Data Logging: It allows for calibration of various parameters and logging of data related to battery usage and performance.
These features make the BQ20Z95DBT suitable for use in applications like laptops, medical equipment, and other portable electronic devices requiring reliable battery management.

Manufacturer

The BQ20Z95DBT is manufactured by Texas Instruments. Texas Instruments is a technology company that designs and produces semiconductors and various integrated circuits, which are used in electronics across a wide array of applications. Founded in 1930 and headquartered in Dallas, Texas, the company is a major player in the electronics industry, offering products that serve sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The BQ20Z95DBT is a battery management IC used primarily in applications requiring smart battery management for lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries. Key application areas include portable electronics, such as laptops, tablets, smartphones, and medical devices, where accurate fuel gauging, protection, and battery health monitoring are essential. It is also used in power tools and other battery-powered equipment to ensure optimized battery performance and safety.

Equivalent

The BQ20Z95DBT is a battery management IC by Texas Instruments. Equivalent products include:
1. BQ20Z75 from Texas Instruments - similar functionality with small differences.
2. Maxim Integrated's DS2788 - though not identical, serves similar applications.
3. Renesas' ISL94203 - a multi-cell battery manager, offering comparable features.
Always check specific requirements and datasheets to ensure compatibility.

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