S-8205AAB-TCT1U

Product Overview

Category

The S-8205AAB-TCT1U belongs to the category of integrated circuits (ICs) and is specifically classified as a voltage protection IC.

Use

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

Characteristics

• Voltage protection range: 2.3V to 4.5V
• Low power consumption: <1µA
• Small form factor: SOT-23-6 package
• High accuracy: ±25mV (typical)
• Wide operating temperature range: -40°C to +85°C

Package and Quantity

The S-8205AAB-TCT1U is packaged in a SOT-23-6 package, which is a small surface-mount package with six pins. It is typically supplied in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input voltage range: 2.3V to 4.5V
• Overcharge detection voltage: 4.25V ±25mV
• Overdischarge detection voltage: 2.3V ±50mV
• Overcurrent detection voltage: 100mV ±20mV
• Short-circuit detection delay time: 10ms (typical)
• Operating current: <1µA
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The S-8205AAB-TCT1U has six pins arranged as follows:

Pin 1: VDD (Power supply input) Pin 2: GND (Ground) Pin 3: CHG (Charge control output) Pin 4: DSG (Discharge control output) Pin 5: OCP (Overcurrent protection output) Pin 6: SC (Short-circuit detection output)

Functional Features

1. Overcharge Protection: The IC monitors the battery voltage and disconnects the charging circuit when it exceeds the specified threshold, preventing overcharging.
2. Overdischarge Protection: It cuts off the discharge path when the battery voltage drops below the predetermined level, safeguarding against excessive discharge.
3. Overcurrent Protection: The IC detects high current flow and interrupts the circuit to prevent damage to the battery and connected devices.
4. Short-Circuit Detection: It quickly identifies short-circuits and isolates the battery from the load to avoid potential hazards.

Advantages

• Compact size and low power consumption make it suitable for portable electronic devices.
• High accuracy ensures precise voltage protection.
• Wide operating temperature range allows for reliable performance in various environments.

Disadvantages

• Limited voltage range may not be compatible with certain battery types or applications.
• Lack of additional features such as temperature monitoring or communication interfaces.

Working Principles

The S-8205AAB-TCT1U utilizes a combination of voltage comparators, reference voltages, and control logic to monitor the battery voltage and control the charging and discharging paths. When the voltage exceeds or falls below the specified thresholds, the corresponding outputs are activated, triggering the necessary protective actions.

Detailed Application Field Plans

The S-8205AAB-TCT1U is widely used in various battery-powered devices, including: - Mobile phones - Tablets - Portable media players - Digital cameras - Bluetooth headsets - Wearable devices

Detailed and Complete Alternative Models

1. S-8205BAA-TCT1U: Similar to S-8205AAB-TCT1U but with a different overdischarge detection voltage range (2.5V to 4.5V).
2. S-8205CAC-TCT1U: Offers additional temperature monitoring and protection features.
3. S-8205DAD-TCT1U: Provides communication interfaces for battery status monitoring.

These alternative models offer similar functionality with slight variations in specifications and additional features, catering to different application requirements.

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