BQ20Z80DBT-V110

Product Overview

Category

BQ20Z80DBT-V110 belongs to the category of battery fuel gauges.

Use

This product is primarily used for accurately measuring and monitoring the state of charge (SOC) and state of health (SOH) of rechargeable batteries.

Characteristics

• Accurate SOC and SOH measurement
• High precision voltage and current sensing
• Advanced algorithm for accurate capacity estimation
• Temperature compensation for improved accuracy
• Low power consumption
• Wide operating temperature range

Package

BQ20Z80DBT-V110 is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of BQ20Z80DBT-V110 lies in its ability to provide reliable and precise information about the battery's remaining capacity and overall health, enabling efficient utilization and maintenance of rechargeable batteries.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specified quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating Voltage: 2.7V to 4.8V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Battery Capacity Range: 100mAh to 10,000mAh
• Accuracy: ±1% (typical)
• Standby Current: 5µA (typical)

Detailed Pin Configuration

The BQ20Z80DBT-V110 has a total of 16 pins. Here is the detailed pin configuration:

1. VSS - Ground
2. SDA - I2C Data Line
3. SCL - I2C Clock Line
4. TS1 - Temperature Sense Input 1
5. TS2 - Temperature Sense Input 2
6. BAT - Battery Voltage Sense Input
7. VDD - Power Supply
8. DSG - Discharge FET Control
9. DSGND - Discharge FET Ground
10. PACK+ - Positive Terminal of Battery Pack
11. PACK- - Negative Terminal of Battery Pack
12. THERM - Thermistor Input
13. SRP - System Reset Output
14. SDA2 - I2C Data Line 2
15. SCL2 - I2C Clock Line 2
16. VSS2 - Ground

Functional Features

• Accurate measurement of battery voltage and current
• Real-time estimation of remaining capacity and state of charge
• Temperature compensation for improved accuracy
• Overvoltage and undervoltage protection
• Overcurrent and short circuit protection
• Gas gauge calibration and learning capabilities
• Communication with host system via I2C interface

Advantages and Disadvantages

Advantages

• High accuracy in measuring SOC and SOH
• Low power consumption
• Wide operating temperature range
• Reliable overvoltage and undervoltage protection
• Advanced algorithm for accurate capacity estimation

Disadvantages

• Limited compatibility with certain battery chemistries
• Requires external thermistor for temperature sensing

Working Principles

BQ20Z80DBT-V110 works by continuously monitoring the battery voltage, current, and temperature. It uses an advanced algorithm to estimate the remaining capacity and state of charge based on these measurements. The device also incorporates temperature compensation to ensure accurate readings across a wide temperature range. Additionally, it provides various protection mechanisms to safeguard the battery against overvoltage, undervoltage, overcurrent, and short circuits.

Detailed Application Field Plans

BQ20Z80DBT-V110 finds applications in various fields where accurate monitoring of battery capacity and health is crucial. Some potential application areas include:

1. Portable electronic devices (e.g., smartphones, tablets)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. Medical devices (e.g., insulin pumps, portable monitors)
4. Electric vehicles and hybrid electric vehicles
5. Energy storage systems

Detailed and Complete Alternative Models

1. BQ27441-G1: Similar battery fuel gauge with enhanced features and higher accuracy.
2. MAX17043G+: Battery fuel gauge with integrated protector and charger control.
3. LTC2943: Multicell battery gas gauge with I2C interface and high precision voltage and current measurement.

These alternative models offer similar functionality to BQ20Z80DBT-V110 and can be considered based on specific application requirements.

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