ABLIC U.S.A. Inc.
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S-8254AAAFT-TB-U
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S-8254AAAFT-TB-U

Product Overview

Category

The S-8254AAAFT-TB-U belongs to the category of integrated circuits (ICs) and specifically falls under the battery protection ICs.

Use

This product is primarily used for protecting rechargeable lithium-ion batteries from overcharging, over-discharging, and overcurrent conditions. It ensures the safe and efficient operation of lithium-ion batteries in various electronic devices.

Characteristics

  • Battery protection: The S-8254AAAFT-TB-U provides comprehensive protection for lithium-ion batteries, preventing potential damage caused by voltage fluctuations or excessive current.
  • High accuracy: This IC offers precise monitoring and control of battery voltage and current levels, ensuring optimal performance and longevity of the battery.
  • Low power consumption: The S-8254AAAFT-TB-U is designed to consume minimal power during operation, maximizing the overall efficiency of the battery-powered device.
  • Compact package: The IC comes in a small form factor package, making it suitable for space-constrained applications.
  • Enhanced safety features: It incorporates advanced safety mechanisms to prevent short circuits, thermal runaway, and other hazardous situations.

Package and Quantity

The S-8254AAAFT-TB-U is available in a compact surface-mount package. Each package contains one unit of the IC.

Specifications

  • Input voltage range: 2.5V - 6.0V
  • Overcharge detection voltage: 4.25V ± 0.025V
  • Overdischarge detection voltage: 2.50V ± 0.08V
  • Overcurrent detection voltage: 0.10V ± 0.02V
  • Operating temperature range: -40°C to +85°C
  • Standby current: 0.1µA (typical)
  • Dimensions: 3.00mm x 3.00mm x 0.55mm

Detailed Pin Configuration

The S-8254AAAFT-TB-U features the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. BAT: Battery connection terminal
  4. CHG: Charging status output
  5. DSG: Discharging status output
  6. OVP: Overvoltage protection control
  7. OCP: Overcurrent protection control
  8. COUT: Capacitor connection terminal for external delay time adjustment

Functional Features

  1. Overcharge protection: Monitors the battery voltage and disconnects the charging circuit when it exceeds the predefined threshold, preventing overcharging.
  2. Overdischarge protection: Detects the battery voltage drop below a certain level and cuts off the discharge path to prevent excessive discharge, which can damage the battery.
  3. Overcurrent protection: Monitors the current flowing through the battery and interrupts the circuit if it exceeds the specified limit, safeguarding against potential damage caused by excessive current.
  4. Delayed output: Provides a delayed output signal to control external circuits, allowing sufficient time for stable voltage levels before enabling or disabling the connected devices.

Advantages and Disadvantages

Advantages

  • Comprehensive battery protection ensures safe operation and extends battery life.
  • High accuracy monitoring and control enhance overall performance.
  • Low power consumption optimizes energy efficiency.
  • Compact package enables integration into space-constrained designs.
  • Advanced safety features minimize the risk of hazardous situations.

Disadvantages

  • Limited compatibility: The S-8254AAAFT-TB-U is specifically designed for lithium-ion batteries and may not be suitable for other battery chemistries.
  • Lack of customization options: The IC offers fixed protection thresholds and limited configurability, which may not meet the specific requirements of all applications.

Working Principles

The S-8254AAAFT-TB-U operates by continuously monitoring the battery voltage and current levels. It compares these values with predefined thresholds to determine if any protection action is required. When an abnormal condition such as overcharging, overdischarging, or overcurrent is detected, the IC triggers the appropriate control signals to interrupt the charging or discharging circuit, ensuring the battery remains within safe operating limits.

Detailed Application Field Plans

The S-8254AAAFT-TB-U finds applications in various electronic devices powered by lithium-ion batteries, including but not limited to: - Smartphones and tablets - Portable medical devices - Wearable electronics - Power tools - Electric vehicles

Detailed and Complete Alternative Models

  1. S-8254AABFT-TB-U: Similar to the S-8254AAAFT-TB-U, this model offers battery protection for lithium-ion batteries with slightly different specifications.
  2. S-8254AACFT-TB-U: Another alternative model providing battery protection for lithium-ion batteries, featuring additional customization options for protection thresholds.

These alternative models can be considered based on specific application requirements and compatibility considerations.

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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του S-8254AAAFT-TB-U σε τεχνικές λύσεις

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

  1. Q: What is the S-8254AAAFT-TB-U? A: The S-8254AAAFT-TB-U is a battery protection IC designed for single-cell lithium-ion/polymer batteries.

  2. Q: What is the purpose of the S-8254AAAFT-TB-U? A: The purpose of this IC is to protect the battery from overcharging, over-discharging, and overcurrent conditions.

  3. Q: Can I use the S-8254AAAFT-TB-U with other types of batteries? A: No, this IC is specifically designed for single-cell lithium-ion/polymer batteries and may not be suitable for other battery chemistries.

  4. Q: How does the S-8254AAAFT-TB-U protect against overcharging? A: The IC monitors the battery voltage and disconnects the charging circuit when the voltage exceeds a certain threshold.

  5. Q: How does the S-8254AAAFT-TB-U protect against over-discharging? A: The IC continuously monitors the battery voltage and disconnects the load when the voltage drops below a certain threshold.

  6. Q: Can the S-8254AAAFT-TB-U handle high current applications? A: Yes, this IC has a built-in overcurrent protection feature that can handle high current applications.

  7. Q: Does the S-8254AAAFT-TB-U have any temperature protection features? A: Yes, it has a built-in thermal shutdown feature that protects the battery and the IC from excessive heat.

  8. Q: Can I use the S-8254AAAFT-TB-U in portable electronic devices? A: Yes, this IC is commonly used in various portable electronic devices like smartphones, tablets, and wearable devices.

  9. Q: Does the S-8254AAAFT-TB-U require any external components for operation? A: Yes, it requires a few external components like resistors and capacitors to set the protection thresholds and timing parameters.

  10. Q: Where can I find more information about the S-8254AAAFT-TB-U? A: You can refer to the datasheet provided by the manufacturer or visit their official website for detailed information on the IC's specifications and application notes.

Please note that these answers are general and may vary depending on the specific requirements and implementation of the S-8254AAAFT-TB-U in different technical solutions.