S-8254ABIFT-TB-U

Product Overview

Category

The S-8254ABIFT-TB-U belongs to the category of integrated circuits (ICs) and is specifically classified as a battery protection IC.

Use

This product is primarily used for protecting rechargeable lithium-ion batteries from overcharging, over-discharging, and short-circuiting. It ensures the safe and efficient operation of lithium-ion batteries in various electronic devices.

Characteristics

• Battery protection: Prevents overcharging, over-discharging, and short-circuiting.
• High accuracy: Provides precise voltage detection and control.
• Low power consumption: Optimizes energy efficiency.
• Compact package: Designed for space-constrained applications.
• RoHS compliant: Environmentally friendly.

Package

The S-8254ABIFT-TB-U is available in a small form factor package, typically a thin and compact BGA (Ball Grid Array) package. This package offers excellent thermal dissipation properties and facilitates easy integration into electronic devices.

Essence

The essence of the S-8254ABIFT-TB-U lies in its ability to safeguard lithium-ion batteries by monitoring their voltage levels and preventing potentially damaging conditions such as overcharging or over-discharging.

Packaging/Quantity

This product is typically supplied in reels or trays, depending on the manufacturer's packaging standards. The exact quantity per package may vary, but it is commonly available in quantities suitable for both prototyping and mass production.

Specifications

• Input voltage range: 2.5V - 6.0V
• Overcharge detection voltage: 3.9V ± 25mV
• Overdischarge detection voltage: 2.3V ± 100mV
• Overcurrent detection voltage: 0.15V ± 20mV
• Operating temperature range: -40°C to +85°C
• Standby current: 0.1µA (typical)
• Package dimensions: 2.9mm x 1.6mm x 0.55mm

Detailed Pin Configuration

The S-8254ABIFT-TB-U has a specific pin configuration that enables its functionality. The following table provides a detailed overview of the pin assignments:

| Pin Name | Function | |----------|----------| | VCC | Power supply input | | GND | Ground reference | | BAT | Battery connection | | OUT | Output for battery voltage monitoring | | CE | Chip enable control | | SDA | Serial data input/output | | SCL | Serial clock input |

Functional Features

1. Overcharge Protection: Monitors the battery voltage and prevents it from exceeding the safe limit during charging.
2. Overdischarge Protection: Detects low battery voltage and cuts off the discharge to prevent damage to the battery.
3. Short-Circuit Protection: Safeguards against excessive current flow, protecting both the battery and the connected circuitry.
4. Temperature Monitoring: Includes temperature sensing to prevent overheating of the battery.
5. Low Power Consumption: Operates with minimal power consumption, ensuring efficient battery usage.

Advantages and Disadvantages

Advantages

• Reliable battery protection against overcharging, over-discharging, and short-circuiting.
• High accuracy in voltage detection and control.
• Compact package suitable for space-constrained applications.
• Low standby current minimizes power consumption.
• RoHS compliant, environmentally friendly.

Disadvantages

• Limited compatibility with specific battery chemistries or voltage ranges.
• Requires proper integration and configuration within the target electronic device.

Working Principles

The S-8254ABIFT-TB-U operates based on a combination of voltage detection, control logic, and MOSFET switches. It continuously monitors the battery voltage and compares it to predefined thresholds. If any of these thresholds are exceeded, the IC takes appropriate action to protect the battery, such as disconnecting it from the charging or discharging circuit.

Detailed Application Field Plans

The S-8254ABIFT-TB-U finds applications in various electronic devices that utilize lithium-ion batteries, including but not limited to: - Smartphones and tablets - Laptops and notebooks - Portable gaming consoles - Wearable devices - Power banks - Electric vehicles (EVs) and hybrid electric vehicles (HEVs)

Detailed and Complete Alternative Models

1. S-8254AAKFT-TB-G: Similar battery protection IC with additional features like overcurrent detection and thermal shutdown.
2. S-8254ACDFT-TB-G: Battery protection IC designed for higher voltage applications (up to 18V).
3. S-8254BCDFT-TB-G: Battery protection IC with enhanced ESD (Electrostatic Discharge) protection capabilities.

These alternative models offer similar functionality to the S-8254ABIFT-TB-U while catering to