BQ76925PWR

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BQ76925PWR

IC BAT MFUNC LI-ION 3-6C 20TSSOP

  • Fabricant
  • Mfr. Partie #BQ76925PWR
  • Paquet TSSOP20
  • Fiche de données
  • En stock4246

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Spécifications

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Function Multi-Function Controller
BatteryChemistry Lithium Ion/Polymer
NumberofCells 3 ~ 6
FaultProtection Over Current, Over Temperature, Over/Under Voltage
Interface I²C
OperatingTemperature -25°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-TSSOP (0.173, 4.40mm Width)

Vue d'ensemble

Description

The BQ76925PWR is a precision battery monitor and analog front-end (AFE) designed for use in lithium-ion battery management systems. Manufactured by Texas Instruments, it is tailored for applications in battery packs, particularly in electric vehicles, power tools, and energy storage systems. The device supports up to six series-connected lithium-ion cells and provides accurate cell voltage and temperature monitoring.
Key features of the BQ76925PWR include high-accuracy voltage measurement, integrated cell balancing, and a programmable gain amplifier (PGA) for enhanced flexibility in calibration. It communicates via an I2C interface, allowing for easy integration with microcontrollers for further processing and control.
The device helps in ensuring battery safety by accurately monitoring cell parameters and providing necessary data to avoid overcharging, over-discharging, and overheating. Its compact TSSOP package makes it suitable for applications where space is a constraint. Overall, the BQ76925PWR serves as a reliable component for efficient battery management, enhancing the lifespan and performance of lithium-ion battery systems.

Features

The BQ76925PWR is a battery monitor and protector IC designed by Texas Instruments, typically used in battery management systems. Key features include:
1. Cell Monitoring: It supports monitoring of up to 6 series-connected lithium-ion or lithium-polymer battery cells.
2. Voltage Measurement: Provides accurate cell voltage measurements with internal calibration.
3. Overvoltage and Undervoltage Protection: Offers protection by detecting and responding to overvoltage and undervoltage conditions in the cells.
4. Temperature Monitoring: Supports external temperature sensing for thermal management and protection.
5. Balancing: Includes passive cell balancing capabilities to maintain balanced cell voltages.
6. Communication Interface: Integrates an I²C communication interface for data communication and control.
7. Low Power Consumption: Designed for low power consumption to extend battery life in portable applications.
8. Integrated Features: Contains a precision ADC and a programmable gain amplifier for enhanced measurements.
9. Package: Available in a TSSOP package, which is compact and suitable for space-constrained applications.
These features make the BQ76925PWR suitable for applications in portable electronics, electric vehicles, and energy storage systems requiring reliable battery monitoring and protection.

Package

The BQ76925PWR is a battery monitor IC from Texas Instruments, housed in a 24-pin TSSOP (Thin Shrink Small Outline Package). This package is compact, making it suitable for space-constrained applications in battery management systems.

Pinout

The BQ76925PWR is a battery monitor and protector IC from Texas Instruments, typically used in battery management systems. It comes in a TSSOP (Thin Shrink Small Outline Package) with 24 pins.
Here are the functions and pin assignments:
1. VREGIN: Input for regulator.
2. VOUT: Output voltage from the LDO regulator.
3. GND: Ground.
4. BAT: Battery voltage input.
5. VC1-VC15: Inputs for monitoring individual cell voltages.
6. CB1-CB6: Pins for connecting the internal balancing resistors used for cell balancing.
7. SDA/SCL: I2C data and clock lines for communication.
8. XALERT: Alert signal for fault conditions.
9. TS: Temperature sensor input.
10. REF: Reference voltage output.
11. REG27: 2.7V regulator output for powering external circuits.
12. VSS: Negative supply input.
These pins allow the BQ76925PWR to monitor cell voltages, perform balancing, communicate with a host controller, and provide protection features like over-voltage and under-voltage protection.

Manufacturer

The BQ76925PWR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments specializes in the design, manufacturing, and sale of semiconductors and integrated circuits. The company is known for producing a wide range of electronic components used in various applications, including analog chips, embedded processors, and digital signal processors. TI serves industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The BQ76925PWR is an analog front-end (AFE) IC primarily used in battery management systems (BMS) for monitoring lithium-ion battery packs. Its application areas include electric vehicles, power tools, uninterruptible power supplies (UPS), and energy storage systems. It provides accurate cell voltage measurements and temperature monitoring, ensuring safe and efficient battery operation.

Equivalent

The BQ76925PWR is a battery monitoring analog front-end from Texas Instruments. Equivalent products include the LTC6803 from Analog Devices, the MAX14920 from Maxim Integrated (now part of Analog Devices), and the ISL94212 from Renesas. These alternatives offer similar functionalities for battery management and monitoring applications. Always check the specific requirements like voltage, current ratings, and communication protocols to ensure compatibility with your design.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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