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S-8254ABHFT-TB-U
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S-8254ABHFT-TB-U

Product Overview

Category

The S-8254ABHFT-TB-U belongs to the category of voltage protection ICs.

Use

This product is primarily used for protecting lithium-ion rechargeable batteries from overcharging, over-discharging, and overcurrent conditions.

Characteristics

  • Voltage protection range: 2.3V to 4.5V
  • Low current consumption: 0.1µA (typical)
  • Small package size: 6-pin ultra-thin super-mini BTL
  • Built-in delay circuit for protection release
  • High accuracy voltage detection
  • Wide operating temperature range: -40°C to +85°C

Package

The S-8254ABHFT-TB-U is packaged in a small and compact 6-pin ultra-thin super-mini BTL package.

Essence

The essence of this product lies in its ability to provide reliable and efficient protection for lithium-ion batteries, ensuring their safe and optimal performance.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

  • Input voltage range: 2.3V to 4.5V
  • Overcharge detection voltage: 4.25V ± 25mV
  • Overdischarge detection voltage: 2.3V ± 50mV
  • Overcurrent detection voltage: 100mV ± 20mV
  • Delay time for protection release: 10ms (typical)
  • Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The S-8254ABHFT-TB-U has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. CHG: Charging control terminal
  4. DSG: Discharging control terminal
  5. OUT: Output terminal
  6. PROTECT: Protection release control terminal

Functional Features

  • Overcharge protection: Prevents the battery from being overcharged, which can lead to safety hazards and reduced battery lifespan.
  • Overdischarge protection: Safeguards the battery by preventing it from being discharged below a critical voltage level, avoiding irreversible damage.
  • Overcurrent protection: Detects excessive current flow and protects the battery and connected circuitry from potential damage.
  • Delay circuit for protection release: Ensures that the protection mechanism remains active for a specific duration after a fault condition is resolved, preventing rapid toggling of the protection state.

Advantages and Disadvantages

Advantages

  • Wide operating temperature range allows for use in various environmental conditions.
  • High accuracy voltage detection ensures precise protection thresholds.
  • Low current consumption minimizes power loss and extends battery life.
  • Small package size enables space-efficient integration into compact electronic devices.

Disadvantages

  • Limited input voltage range restricts compatibility with certain battery types.
  • Lack of built-in communication interface may limit advanced monitoring and control capabilities.

Working Principles

The S-8254ABHFT-TB-U operates based on a combination of voltage detection and control circuitry. It continuously monitors the battery voltage and compares it against predefined thresholds for overcharge, overdischarge, and overcurrent conditions. When any of these thresholds are exceeded, the corresponding protection mechanism is activated, disconnecting the battery from the load or charging source. The delay circuit ensures that the protection remains active for a specific time after the fault condition is resolved before reestablishing the connection.

Detailed Application Field Plans

The S-8254ABHFT-TB-U finds applications in various fields where lithium-ion batteries require reliable protection. Some potential application areas include:

  1. Portable electronic devices: Smartphones, tablets, and laptops.
  2. Power tools: Cordless drills, saws, and screwdrivers.
  3. Electric vehicles: E-bikes, electric scooters, and small electric cars.
  4. Energy storage systems: Solar-powered battery banks and uninterruptible power supplies (UPS).
  5. Medical devices: Portable oxygen concentrators, insulin pumps, and patient monitoring equipment.

Detailed and Complete Alternative Models

  1. S-8254AAFT-TB-G: Similar to S-8254ABHFT-TB-U but with a different package type (SNT-6A).
  2. S-8254ACFT-TB-G: Provides additional overtemperature protection in addition to the features of S-8254ABHFT-TB-U.
  3. S-8254ADFT-TB-G: Offers higher voltage detection range (2.3V to 5.5V) compared to S-8254ABHFT-TB-U.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av S-8254ABHFT-TB-U i tekniska lösningar

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

  1. Q: What is the S-8254ABHFT-TB-U? A: The S-8254ABHFT-TB-U is a battery protection IC designed for lithium-ion rechargeable batteries.

  2. Q: What is the purpose of the S-8254ABHFT-TB-U? A: The S-8254ABHFT-TB-U provides overcharge, over-discharge, and overcurrent protection for lithium-ion batteries.

  3. Q: What voltage range does the S-8254ABHFT-TB-U support? A: The S-8254ABHFT-TB-U supports a voltage range of 2.5V to 4.5V.

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

  5. Q: Can the S-8254ABHFT-TB-U protect against over-discharge? A: Yes, the S-8254ABHFT-TB-U has an integrated over-discharge detection circuit that disconnects the load when the battery voltage drops below a certain level.

  6. Q: Does the S-8254ABHFT-TB-U have short-circuit protection? A: Yes, the S-8254ABHFT-TB-U includes a built-in short-circuit detection circuit that disconnects the battery from the load in case of a short circuit.

  7. Q: What is the maximum continuous discharge current supported by the S-8254ABHFT-TB-U? A: The S-8254ABHFT-TB-U can handle a maximum continuous discharge current of 2.5A.

  8. Q: Can the S-8254ABHFT-TB-U be used in portable electronic devices? A: Yes, the S-8254ABHFT-TB-U is commonly used in applications such as smartphones, tablets, and portable medical devices.

  9. Q: Does the S-8254ABHFT-TB-U have thermal protection? A: Yes, the S-8254ABHFT-TB-U includes a thermal shutdown feature that activates when the IC temperature exceeds a certain threshold.

  10. Q: What package does the S-8254ABHFT-TB-U come in? A: The S-8254ABHFT-TB-U is available in a small and compact TSSOP-16 package.

Please note that these answers are general and may vary depending on the specific application and requirements.