BQ29209DRBR

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BQ29209DRBR

IC BATT PROT LI-ION 2CELL 8SON

  • Manufacturer
  • Mfr. Part #BQ29209DRBR
  • Package VDFN-8
  • Datasheet
  • In Stock4867

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Battery Protection
BatteryChemistry Lithium Ion
NumberofCells 2
FaultProtection Over Voltage
OperatingTemperature -40°C ~ 110°C (TA)
MountingType Surface Mount
Package/Case 8-VDFN Exposed Pad

Overview

Description

The BQ29209DRBR is a battery protection integrated circuit (IC) designed by Texas Instruments. It is commonly used in battery management systems for lithium-ion and lithium-polymer battery packs. This IC provides essential safety features to safeguard the battery pack from overvoltage, undervoltage, and overcurrent conditions, which are crucial for maintaining battery health and ensuring safety during charging and discharging.
The BQ29209DRBR is a part of the BQ2920x series and is tailored for 2-series cell battery packs. It includes features like cell voltage monitoring, gate drive for external charge and discharge FETs, and integrated delay timers for fault conditions. Its compact design, often available in small surface-mount packages, makes it suitable for portable electronics, power tools, and other applications requiring efficient battery management.
This IC operates effectively within a specified temperature range and supports low power consumption to prolong battery life. Designers integrate the BQ29209DRBR into their systems to leverage its robust protection mechanisms, ensuring reliability and safety in battery-operated devices.

Features

The BQ29209DRBR is a battery management IC (integrated circuit) designed for applications with lithium-ion or lithium-polymer batteries. Key features include:
1. Overvoltage Protection: Safeguards the battery by monitoring each cell voltage and ensuring it does not exceed a preset threshold.
2. Undervoltage Protection: Prevents battery damage by monitoring and maintaining minimum cell voltage levels.
3. Balance Control: Offers cell balancing capability to ensure even energy distribution and maximize battery life.
4. Low Power Consumption: Designed to minimize power usage in standby mode, enhancing battery longevity.
5. Compact Package: Comes in a small footprint package suitable for space-constrained applications.
6. Temperature Range: Operates effectively across a wide temperature range, ensuring reliability in various environments.
7. Integration: Simplified integration into battery management systems with minimal external components required.
These features make the BQ29209DRBR suitable for portable electronics, power tools, and other applications requiring efficient battery management.

Package

The BQ29209DRBR is packaged in a SON (Small Outline No-lead) form factor, specifically a DRB package. This is a standard SON package used for integrated circuits, providing a compact and efficient solution for board space constraints.

Pinout

The BQ29209DRBR is a lithium-ion battery protection integrated circuit from Texas Instruments, typically used for 2-series cell battery packs. This device is commonly employed to safeguard batteries from overvoltage conditions.
The BQ29209DRBR comes in an 8-pin SON (Small Outline No-lead) package. Its pin count and functions are as follows:
1. VC1: Connects to the first cell in the series for monitoring.
2. VC2: Connects to the terminal of the second cell; monitors the voltage across the second cell and also acts as a power supply for the IC.
3. VSS: Ground reference for the device.
4. CD: Connects to a capacitor for delay time adjustment during overvoltage detection.
5. OUT: Outputs the overvoltage signal to control external circuitry, like a MOSFET.
6. CB: Connects a capacitor to balance cell voltages.
7. NC: No connection.
8. NC: No connection.
The BQ29209DRBR ensures safe battery operation by providing overvoltage protection and helps maintain battery cell balance.

Manufacturer

The BQ29209DRBR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. TI is known for its innovation in analog and embedded processing products, which are used in various industries including automotive, industrial, consumer electronics, and communications. The company focuses on developing technologies that improve power efficiency, performance, and reliability.

Application

The BQ29209DRBR is a battery protection integrated circuit designed primarily for lithium-ion and lithium-polymer battery packs. It is used in applications requiring cell protection, including overcharge, over-discharge, and overcurrent protection. Typical application areas include portable electronic devices, power banks, and rechargeable battery packs for consumer electronics and industrial equipment. Its compact design makes it suitable for compact and lightweight battery systems.

Equivalent

The BQ29209DRBR is a battery management IC by Texas Instruments. Equivalent products might include battery management ICs from other manufacturers with similar specifications, such as the MAX17261 from Maxim Integrated, the LTC6803 from Analog Devices, or the MCP73871 from Microchip Technology. It's important to compare the specific features, voltage ranges, and functionality to ensure compatibility with your application. Always refer to the datasheets for precise specifications.

Shipping

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DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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