ABLIC U.S.A. Inc.
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S-8254AAQFT-TB-G
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S-8254AAQFT-TB-G

Product Overview

Category

S-8254AAQFT-TB-G belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for battery protection in various electronic devices.

Characteristics

  • Voltage range: 2.5V to 6.0V
  • Low current consumption: 1µA (typ.)
  • Overcharge detection voltage: 3.9V to 4.4V (in 50mV steps)
  • Overdischarge detection voltage: 2.0V to 3.0V (in 100mV steps)
  • Overcurrent detection voltage: 0.05Ω to 0.25Ω (in 10mΩ steps)
  • Package type: TSSOP-B20
  • Essence: Battery protection and monitoring

Packaging/Quantity

The S-8254AAQFT-TB-G IC is typically packaged in a TSSOP-B20 package. It is available in reels, with a quantity of 3000 units per reel.

Specifications

  • Operating voltage range: 2.5V to 6.0V
  • Operating temperature range: -40°C to +85°C
  • Overcharge detection voltage accuracy: ±25mV
  • Overdischarge detection voltage accuracy: ±100mV
  • Overcurrent detection voltage accuracy: ±10mΩ
  • Standby current: 1µA (typ.)
  • Dimensions: 6.5mm x 4.4mm x 1.1mm

Detailed Pin Configuration

The S-8254AAQFT-TB-G IC has the following pin configuration:

  1. VCC
  2. GND
  3. CHG
  4. DSG
  5. OVP
  6. OCP
  7. COUT
  8. VSS
  9. VDD
  10. BAT

Functional Features

  • Overcharge protection: The IC monitors the battery voltage and prevents it from exceeding a certain threshold, thus protecting the battery from damage.
  • Overdischarge protection: It detects when the battery voltage drops below a certain level and cuts off the discharge current to prevent overdischarge.
  • Overcurrent protection: The IC can detect excessive current flowing through the battery and disconnect it to avoid damage.
  • Charge control: It provides control signals for charging the battery safely and efficiently.

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows compatibility with various battery types.
  • Low standby current consumption helps conserve battery power.
  • Accurate detection voltages ensure reliable protection.
  • Compact package size enables space-saving designs.

Disadvantages

  • Limited to applications within the specified voltage and temperature ranges.
  • Requires external components for complete battery protection circuit implementation.

Working Principles

The S-8254AAQFT-TB-G IC works by continuously monitoring the battery voltage and comparing it to predefined thresholds. When the voltage exceeds the overcharge detection threshold, the IC interrupts the charging process. Similarly, if the voltage falls below the overdischarge detection threshold, the IC cuts off the discharge current. In case of an overcurrent condition, the IC disconnects the battery from the load. These protective measures help extend the battery's lifespan and prevent potential hazards.

Detailed Application Field Plans

The S-8254AAQFT-TB-G IC finds application in various electronic devices that utilize rechargeable batteries, such as: 1. Mobile phones 2. Tablets 3. Laptops 4. Portable gaming consoles 5. Power banks 6. Digital cameras 7. Bluetooth speakers 8. Wearable devices

Detailed and Complete Alternative Models

  1. S-8254ABQFT-TB-G
  2. S-8254ACQFT-TB-G
  3. S-8254ADQFT-TB-G
  4. S-8254AEQFT-TB-G

These alternative models offer similar functionality and characteristics, providing flexibility in design choices.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de S-8254AAQFT-TB-G en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of S-8254AAQFT-TB-G in technical solutions:

  1. Question: What is the purpose of S-8254AAQFT-TB-G?
    Answer: S-8254AAQFT-TB-G is a voltage detection IC designed for lithium-ion rechargeable batteries.

  2. Question: What is the operating voltage range of S-8254AAQFT-TB-G?
    Answer: The operating voltage range is from 2.5V to 6.0V.

  3. Question: Can S-8254AAQFT-TB-G be used with other types of batteries?
    Answer: No, it is specifically designed for lithium-ion rechargeable batteries.

  4. Question: What is the function of the built-in delay circuit in S-8254AAQFT-TB-G?
    Answer: The delay circuit prevents false detection caused by momentary voltage drops during battery operation.

  5. Question: How does S-8254AAQFT-TB-G protect against overcharging?
    Answer: It has an overcharge detection voltage of 4.25V ± 50mV, which triggers the protection circuit when the battery voltage exceeds this threshold.

  6. Question: Can S-8254AAQFT-TB-G be used in portable electronic devices?
    Answer: Yes, it is commonly used in applications such as smartphones, tablets, and portable power banks.

  7. Question: Does S-8254AAQFT-TB-G provide protection against over-discharging?
    Answer: Yes, it has an over-discharge detection voltage of 2.4V ± 100mV, which activates the protection circuit when the battery voltage drops below this level.

  8. Question: What is the typical quiescent current of S-8254AAQFT-TB-G?
    Answer: The typical quiescent current is 0.1µA, which helps to minimize power consumption.

  9. Question: Can S-8254AAQFT-TB-G be used in automotive applications?
    Answer: Yes, it is suitable for automotive applications that require battery voltage monitoring and protection.

  10. Question: Does S-8254AAQFT-TB-G support thermal shutdown protection?
    Answer: Yes, it has a built-in thermal shutdown function that activates when the IC temperature exceeds the specified threshold, providing additional safety.