S-8254AATFT-TB-U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Battery Protection IC
• Characteristics:
  • Overcharge protection
  • Over-discharge protection
  • Overcurrent protection
  • Short circuit protection
  • Temperature protection
• Package: Thin Small Outline Package (TSOP)
• Essence: Ensures safe and reliable operation of rechargeable batteries
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Overcharge Detection Voltage: 3.9V ± 25mV
• Overcharge Release Voltage: 3.7V ± 75mV
• Overdischarge Detection Voltage: 2.0V ± 80mV
• Overdischarge Release Voltage: 2.3V ± 100mV
• Overcurrent Detection Voltage: 0.1V ± 20mV
• Overcurrent Detection Delay Time: 5ms to 20ms
• Short Circuit Detection Delay Time: 2μs to 10μs
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8254AATFT-TB-U has a total of 8 pins: 1. VCC: Power supply input 2. GND: Ground 3. CHG: Charge control pin 4. DSG: Discharge control pin 5. BAT: Battery connection pin 6. OCP: Overcurrent protection output pin 7. SC: Short circuit detection output pin 8. THERM: Temperature detection pin

Functional Features

• Overcharge protection: Prevents the battery from being overcharged, ensuring its longevity.
• Over-discharge protection: Safeguards the battery by preventing it from being discharged beyond safe limits.
• Overcurrent protection: Detects and protects against excessive current flow, preventing damage to the battery and connected devices.
• Short circuit protection: Quickly detects and shuts down the circuit in case of a short circuit, preventing further damage.
• Temperature protection: Monitors the battery temperature and triggers protective measures if it exceeds safe thresholds.

Advantages

• Comprehensive protection: Offers multiple layers of protection to ensure the safety and longevity of rechargeable batteries.
• Compact design: The thin small outline package allows for space-efficient integration into various electronic devices.
• Wide operating temperature range: Can operate reliably in extreme temperature conditions.
• Fast response time: Detects and responds to overcurrent and short circuit events quickly, minimizing potential damage.

Disadvantages

• Limited voltage range: The input voltage range is restricted to 2.5V to 6.0V, which may not be suitable for all applications.
• Sensitivity to temperature: Extreme temperatures can affect the accuracy of the temperature detection feature.

Working Principles

The S-8254AATFT-TB-U monitors the voltage, current, and temperature of the connected battery. It compares these values with predefined thresholds to detect abnormal conditions. When an abnormality is detected, the IC takes appropriate actions to protect the battery and the connected circuitry. These actions include interrupting the charging or discharging process, isolating the battery from the circuit, or triggering an alarm signal.

Detailed Application Field Plans

The S-8254AATFT-TB-U is widely used in various portable electronic devices powered by rechargeable batteries. Some common application fields include: - Mobile phones - Tablets - Laptops - Digital cameras - Portable gaming devices - Power banks

Detailed and Complete Alternative Models

1. S-8254AAKFT-TB-G: Similar battery protection IC with a different package (Thin Small Outline Package, 8 pins).
2. S-8254AATFT-TB-G: Battery protection IC with the same package and specifications but without the temperature detection feature.
3. S-8254AATFT-TB-C: Battery protection IC with the same package and specifications but optimized for higher current applications.

These alternative models provide similar functionality and can be considered as alternatives to the S-8254AATFT-TB-U based on specific requirements.

In conclusion, the S-8254AATFT-TB-U is a battery protection IC that ensures the safe and reliable operation of rechargeable batteries. With its comprehensive protection features and compact design, it finds applications in various portable electronic devices. While it has some limitations, alternative models are available to cater to different needs.