BQ294700DSGR

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BQ294700DSGR

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IC BATT PROT LI-ION 2-4CEL 8WSON

  • Nhà sản xuấtTexas Dụng cụ

  • Ông. Phần #BQ294700DSGR

  • Gói WSON (DSG)-8

  • Có sẵn2377

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Function Battery Protection
BatteryChemistry Lithium Ion
NumberofCells 2 ~ 4
FaultProtection Over Voltage
OperatingTemperature -40°C ~ 110°C (TA)
MountingType Surface Mount
Package/Case 8-WFDFN Exposed Pad

Tổng quan

Description

The BQ294700DSGR is a battery protection integrated circuit (IC) designed by Texas Instruments. It is primarily used in lithium-ion and lithium-polymer battery packs to ensure safety and enhance battery longevity. The IC provides overvoltage protection by monitoring each cell in a battery pack and ensuring that the voltage does not exceed a specified threshold. If an overvoltage condition is detected, the IC triggers a protection mechanism, often disconnecting the battery from the load or charger.
This IC is part of the BQ2947x family, which is known for its precision and reliability in safety applications. It supports a wide range of applications, including mobile devices, power tools, and portable electronics. The BQ294700DSGR typically operates over a range of temperatures, making it suitable for various environmental conditions. It is packaged in a compact form factor, which is beneficial for space-constrained applications. Overall, the BQ294700DSGR plays a crucial role in safeguarding battery packs from overvoltage, contributing to both safety and performance.

Equivalent

The BQ294700DSGR is a precision overvoltage protection IC for lithium-ion battery packs. Equivalent products include:
1. Seiko Instruments S-8244 Series - Offers similar overvoltage protection for rechargeable batteries.
2. Ricoh R5441 Series - Designed for overvoltage protection in Li-ion batteries.
3. Hycon Technology HY2213 - Provides comparable overvoltage protection features.
When selecting an equivalent, ensure compatibility with your specific application requirements.

Features

The BQ294700DSGR is a highly specialized battery protection integrated circuit (IC) designed for lithium-ion battery packs. Key features include:
1. Overvoltage Protection: Monitors each cell in a battery pack to prevent overcharging by triggering a protection action if a cell's voltage exceeds a specified threshold.
2. Low Power Consumption: Consumes minimal power during both normal operation and in standby mode, extending the overall battery life.
3. Programmable Delay: Offers adjustable delay times for the overvoltage detection, allowing customization based on application requirements.
4. High Accuracy: Provides precise overvoltage detection, ensuring reliable protection for sensitive lithium-ion cells.
5. Compact Package: Available in a small, space-saving package suitable for compact battery pack designs.
These features make the BQ294700DSGR ideal for use in portable electronics, power tools, and other applications requiring efficient battery management and protection.

Pinout

The BQ294700DSGR is a lithium-ion battery overvoltage protection IC designed by Texas Instruments. It is used to monitor battery cell voltages and provide protection by triggering an external N-channel MOSFET to disconnect the load when an overvoltage condition is detected.
The BQ294700DSGR comes in an 8-pin package. The pin functions are as follows:
1. VC1: Connection for Cell 1 voltage sense.
2. VC2: Connection for Cell 2 voltage sense.
3. VC3: Connection for Cell 3 voltage sense.
4. VC4: Connection for Cell 4 voltage sense.
5. OUT: Output pin to drive the gate of an external MOSFET.
6. GND: Ground connection.
7. VDD: Power supply input.
8. CT: Connection for a capacitor to set the delay time for overvoltage protection.
This IC is specifically designed to protect multi-cell lithium-ion battery packs by ensuring that individual cell voltages do not exceed safe operating limits.

Manufacturer

The BQ294700DSGR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of integrated circuits and semiconductor solutions. They are known for their innovations in analog and embedded processing, which are used across various industries, including automotive, industrial, personal electronics, and communications equipment. TI is a major player in the electronics industry and is renowned for its contributions to technology advancement and its comprehensive portfolio of semiconductor products.

Application

The BQ294700DSGR is a battery protection integrated circuit used primarily in lithium-ion and lithium-polymer battery packs. Its main application areas include consumer electronics such as smartphones, laptops, and tablets, where it provides overvoltage protection to ensure the safe operation of battery cells. Additionally, it's utilized in power tools, electric bicycles, and other portable devices requiring reliable battery management to prevent overcharging. Its compact design and efficient performance make it suitable for applications demanding high safety standards and space efficiency.

Package

The BQ294700DSGR is a battery management IC from Texas Instruments. Its package type is a small-outline transistor (SOT) with 6 pins, specifically the SOT-23-6 package.

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