S-8254ABDFT-TB-S

Product Overview

Category: Integrated Circuit (IC)

Use: Battery protection IC for lithium-ion rechargeable batteries

Characteristics: - Provides overcharge, overdischarge, and short-circuit protection for lithium-ion batteries - Monitors battery voltage and current to ensure safe operation - Controls charging and discharging processes to prevent damage to the battery - Suitable for various portable electronic devices powered by lithium-ion batteries

Package: Thin Small Outline Package (TSOP-6)

Essence: Ensures the safety and longevity of lithium-ion batteries in electronic devices

Packaging/Quantity: Sold in reels containing 3,000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Overcharge Detection Voltage: 4.25V ± 0.05V
• Overdischarge Detection Voltage: 2.4V ± 0.08V
• Overcurrent Detection Voltage: 0.1V ± 0.02V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8254ABDFT-TB-S has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. CHG: Charging control input
4. DSG: Discharging control input
5. OUT: Output terminal for battery voltage monitoring
6. N/C: No connection

Functional Features

1. Overcharge Protection:

   • Monitors battery voltage during charging process
   • Automatically stops charging when the voltage exceeds the specified limit

2. Overdischarge Protection:

   • Monitors battery voltage during discharging process
   • Automatically cuts off power when the voltage drops below the specified limit

3. Short-Circuit Protection:

   • Detects excessive current flow and prevents damage to the battery

4. Temperature Monitoring:

   • Monitors the operating temperature of the IC
   • Activates thermal shutdown if the temperature exceeds the safe limit

Advantages and Disadvantages

Advantages: - Provides comprehensive protection for lithium-ion batteries - Compact size and low power consumption - Wide input voltage range allows compatibility with various devices - Reliable overcharge, overdischarge, and short-circuit protection

Disadvantages: - Limited to lithium-ion battery applications - Requires proper circuit design and integration for optimal performance

Working Principles

The S-8254ABDFT-TB-S operates by continuously monitoring the battery voltage and current during charging and discharging processes. It compares these values with predetermined thresholds to detect potential issues such as overcharge, overdischarge, and short-circuits. When a fault is detected, the IC takes appropriate actions to protect the battery, such as stopping the charging process or cutting off power.

Detailed Application Field Plans

The S-8254ABDFT-TB-S is widely used in various portable electronic devices powered by lithium-ion batteries, including:

1. Smartphones and tablets
2. Laptops and notebooks
3. Digital cameras and camcorders
4. Portable gaming consoles
5. Bluetooth headsets and speakers
6. Portable medical devices
7. GPS navigation systems
8. Power banks and portable chargers

Detailed and Complete Alternative Models

1. S-8254AADFT-TB-G: Similar battery protection IC with additional features like overcurrent detection and external MOSFET control.
2. S-8254ACDFT-TB-S: Battery protection IC with adjustable overcharge and overdischarge detection voltages.
3. S-8254BCDFT-TB-G: Battery protection IC with built-in battery cell balancing function.
4. S-8254CCDFT-TB-S: Battery protection IC with enhanced short-circuit protection and faster response time.

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

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