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S-8254AAMFT-TB-U
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S-8254AAMFT-TB-U

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Battery protection circuit
  • Characteristics: Overcharge and over-discharge protection, high accuracy, small package size
  • Package: Thin Small Outline Package (TSOP), 8 pins
  • Essence: Ensures safe and efficient operation of rechargeable batteries
  • Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

  • Input Voltage Range: 2.5V to 6.0V
  • Overcharge Detection Voltage: 3.9V ± 25mV
  • Overcharge Release Voltage: 3.7V ± 50mV
  • Overdischarge Detection Voltage: 2.3V ± 100mV
  • Overdischarge Release Voltage: 2.9V ± 80mV
  • Operating Current: 1.0μA (typical)
  • Standby Current: 0.1μA (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. VDD: Power supply input
  2. GND: Ground reference
  3. CHG: Charge control pin
  4. DSG: Discharge control pin
  5. BAT: Battery connection
  6. OUT: Output terminal
  7. OVP: Overvoltage protection pin
  8. UVLO: Undervoltage lockout pin

Functional Features

  • Overcharge Protection: Monitors battery voltage and prevents overcharging by disconnecting the charging source.
  • Overdischarge Protection: Prevents excessive discharge by disconnecting the load when the battery voltage drops below a certain threshold.
  • High Accuracy: Precise voltage detection ensures accurate protection thresholds.
  • Small Package Size: TSOP package allows for compact designs in space-constrained applications.

Advantages

  • Reliable Battery Protection: Ensures the safety and longevity of rechargeable batteries.
  • Easy Integration: Compact package size facilitates easy integration into various electronic devices.
  • High Accuracy: Provides precise voltage detection for optimal battery protection.

Disadvantages

  • Limited Voltage Range: Suitable for batteries with an input voltage range of 2.5V to 6.0V only.
  • No Overcurrent Protection: Does not offer protection against excessive current flow.

Working Principles

The S-8254AAMFT-TB-U operates by continuously monitoring the battery voltage during charging and discharging. When the voltage exceeds the overcharge detection threshold, the charge control pin (CHG) disconnects the charging source, preventing overcharging. Similarly, when the voltage drops below the overdischarge detection threshold, the discharge control pin (DSG) disconnects the load, preventing excessive discharge. The IC ensures accurate voltage detection through its internal circuitry, providing reliable battery protection.

Detailed Application Field Plans

The S-8254AAMFT-TB-U is widely used in various portable electronic devices powered by rechargeable batteries. Some common application fields include: 1. Mobile Phones: Protects the battery from overcharging and overdischarging, ensuring safe and efficient operation. 2. Tablets and Laptops: Safeguards the battery during charging and discharging cycles, prolonging its lifespan. 3. Power Banks: Provides essential battery protection features for portable power storage devices. 4. Wearable Devices: Ensures the safety and reliability of batteries used in smartwatches, fitness trackers, etc.

Detailed and Complete Alternative Models

  1. S-8254AAKFT-TB-G: Similar battery protection IC with a different package type (Thin Small Outline Package, 6 pins).
  2. S-8254AANFT-TB-G: Battery protection IC with additional overcurrent protection feature.
  3. S-8254AALFT-TB-G: Battery protection IC with a wider input voltage range (2.0V to 6.5V).

(Note: The above alternative models are provided for reference and may have different specifications and characteristics.)

In conclusion, the S-8254AAMFT-TB-U is an integrated circuit designed for battery protection applications. Its compact size, high accuracy, and reliable functionality make it suitable for various portable electronic devices. While it offers essential overcharge and overdischarge protection, it has limitations in terms of voltage range and lacks overcurrent protection. Nonetheless, it serves as a crucial component in ensuring the safe and efficient operation of rechargeable batteries in numerous applications.

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

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

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

  2. Q: What voltage range does the S-8254AAMFT-TB-U support? A: It supports a voltage range of 2.5V to 6.0V.

  3. Q: Can the S-8254AAMFT-TB-U protect against overcharging? A: Yes, it provides overcharge protection by monitoring the battery voltage and disconnecting the charging circuit when the voltage exceeds a certain threshold.

  4. Q: Does the S-8254AAMFT-TB-U offer over-discharge protection? A: Yes, it includes over-discharge protection by cutting off the discharge circuit when the battery voltage drops below a specific level.

  5. Q: How does the S-8254AAMFT-TB-U handle short circuits? A: It has built-in short-circuit protection that shuts off the discharge circuit when a short circuit is detected.

  6. Q: Can the S-8254AAMFT-TB-U protect against reverse polarity? A: Yes, it safeguards against reverse polarity by preventing current flow if the battery is inserted incorrectly.

  7. Q: What is the maximum charging current supported by the S-8254AAMFT-TB-U? A: It can handle a maximum charging current of 500mA.

  8. Q: Is the S-8254AAMFT-TB-U suitable for low-power applications? A: Yes, it is designed for low-power applications and has a low quiescent current.

  9. Q: Can the S-8254AAMFT-TB-U be used in portable electronic devices? A: Absolutely, it is commonly used in various portable electronic devices like smartphones, tablets, and wearables.

  10. Q: Does the S-8254AAMFT-TB-U have temperature protection? A: Yes, it incorporates temperature protection by monitoring the battery temperature and taking appropriate actions to prevent overheating.

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