S-8254AAJFT-TB-G

Product Overview

Category

The S-8254AAJFT-TB-G 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

• Overcharge protection: Prevents the battery from being charged beyond its safe voltage limit.
• Over-discharge protection: Safeguards the battery by preventing it from discharging below a critical voltage level.
• Overcurrent protection: Detects and limits excessive current flow, protecting the battery and the connected circuitry.
• Low power consumption: The IC itself consumes minimal power, ensuring efficient battery usage.
• Small form factor: The package size is compact, making it suitable for space-constrained applications.
• High accuracy: Provides precise voltage and current monitoring for reliable battery protection.

Package

The S-8254AAJFT-TB-G is available in a small surface-mount TSSOP-16 package, which offers ease of integration into electronic devices.

Essence

The essence of the S-8254AAJFT-TB-G lies in its ability to safeguard lithium-ion batteries from potential damage caused by overcharging, over-discharging, and overcurrent situations. By providing comprehensive protection, this IC enhances the safety and longevity of batteries in various applications.

Packaging/Quantity

The S-8254AAJFT-TB-G is typically supplied in reels, with 2,500 units per reel. This packaging format ensures convenient handling during manufacturing processes.

Specifications

• Input voltage range: 2.5V to 6.0V
• Overcharge detection voltage: 3.9V ± 25mV
• Overdischarge detection voltage: 2.3V ± 100mV
• Overcurrent detection voltage: 0.1V ± 20mV
• Operating temperature range: -40°C to +85°C
• Standby current: 0.1µA (typical)
• Dimensions: 4.4mm x 5.0mm x 1.0mm

Detailed Pin Configuration

The S-8254AAJFT-TB-G features a TSSOP-16 package with the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. CHG: Charging control input
4. DSG: Discharging control input
5. OVP: Overvoltage protection output
6. OCP: Overcurrent protection output
7. OVD: Overdischarge protection output
8. BAT: Battery connection terminal
9. N/C: No connection
10. N/C: No connection
11. N/C: No connection
12. N/C: No connection
13. N/C: No connection
14. N/C: No connection
15. N/C: No connection
16. N/C: No connection

Functional Features

1. Overcharge Protection: Monitors the battery voltage during charging and disconnects the charging circuit when the voltage exceeds the safe limit.
2. Overdischarge Protection: Detects the battery voltage during discharging and cuts off the load when it drops below the critical threshold.
3. Overcurrent Protection: Monitors the current flowing through the battery and disconnects the circuit if it exceeds the specified limit.
4. Integrated Control Logic: The IC incorporates internal control logic for efficient battery protection without requiring external components.
5. Fast Response Time: Provides quick response to abnormal conditions, ensuring timely protection of the battery and connected circuitry.
6. Low Power Consumption: Consumes minimal power during standby, optimizing battery life.

Advantages and Disadvantages

Advantages

• Comprehensive battery protection against overcharging, over-discharging, and overcurrent situations.
• High accuracy in voltage and current monitoring.
• Compact package size for easy integration into electronic devices.
• Fast response time ensures timely protection.
• Low power consumption enhances battery efficiency.

Disadvantages

• Limited to lithium-ion battery protection only.
• Requires careful consideration of input voltage range compatibility.

Working Principles

The S-8254AAJFT-TB-G operates based on a combination of voltage and current monitoring techniques. It continuously measures the battery voltage and compares it with predefined thresholds to detect overcharge and overdischarge conditions. Additionally, it monitors the current flowing through the battery to identify overcurrent situations. When any of these abnormal conditions are detected, the IC triggers the appropriate protection mechanism to safeguard the battery and connected circuitry.

Detailed Application Field Plans

The S-8254AAJFT-TB-G finds extensive application in various electronic devices that utilize rechargeable lithium-ion batteries