S-8209AAH-T8T1U

Product Overview

Category

The S-8209AAH-T8T1U belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for voltage detection and battery protection in various electronic devices.

Characteristics

• Voltage detection range: 0.5V to 10V
• Low current consumption: 1.2µA (typical)
• High accuracy voltage detection: ±1.5%
• Overcharge detection voltage: 3.9V to 4.6V (in 0.1V steps)
• Over-discharge detection voltage: 2.0V to 3.0V (in 0.1V steps)
• Hysteresis width: 100mV (typical)
• Package type: TSSOP-8
• Essence: Battery protection and voltage monitoring

Packaging/Quantity

The S-8209AAH-T8T1U is typically packaged in a TSSOP-8 package. It is available in reels containing 2500 units per reel.

Specifications

• Supply voltage range: 2.0V to 10V
• Operating temperature range: -40°C to +85°C
• Quiescent current: 1.2µA (typical)
• Overcharge detection voltage accuracy: ±30mV (typical)
• Over-discharge detection voltage accuracy: ±50mV (typical)
• Delay time for overcharge detection: 0.5s to 2.0s (in 0.1s steps)
• Delay time for over-discharge detection: 0.5s to 2.0s (in 0.1s steps)

Detailed Pin Configuration

The S-8209AAH-T8T1U has the following pin configuration:

1. VDD: Supply voltage input
2. GND: Ground reference
3. OUT: Output terminal for voltage detection
4. OV: Overcharge detection voltage setting pin
5. UV: Over-discharge detection voltage setting pin
6. CD: Delay time setting pin for overcharge detection
7. DD: Delay time setting pin for over-discharge detection
8. NC: No connection

Functional Features

• Voltage detection: The S-8209AAH-T8T1U can accurately detect the voltage of a connected battery within the specified range.
• Overcharge protection: It provides protection against overcharging by detecting when the battery voltage exceeds the set threshold.
• Over-discharge protection: It safeguards the battery from excessive discharge by monitoring the voltage and triggering an alert when it falls below the set threshold.
• Delay time control: The IC allows for adjustable delay times to prevent false triggering due to temporary voltage fluctuations.

Advantages and Disadvantages

Advantages

• Wide voltage detection range
• High accuracy voltage detection
• Low quiescent current consumption
• Adjustable delay times for precise protection
• Compact TSSOP-8 package for space-constrained applications

Disadvantages

• Limited number of alternative models available in the market
• Requires external components for complete battery protection circuit implementation

Working Principles

The S-8209AAH-T8T1U operates based on the principle of voltage comparison. It continuously monitors the battery voltage using an internal voltage reference and compares it with the user-defined thresholds for overcharge and over-discharge. When the voltage exceeds or falls below the set thresholds, the corresponding output terminal is triggered, providing an indication of the battery's status.

Detailed Application Field Plans

The S-8209AAH-T8T1U finds extensive application in various electronic devices that utilize rechargeable batteries. Some of the common application fields include:

1. Portable consumer electronics: Smartphones, tablets, portable gaming devices, etc.
2. Wearable devices: Smartwatches, fitness trackers, wireless earbuds, etc.
3. Power tools: Cordless drills, electric screwdrivers, etc.
4. Medical devices: Portable medical monitors, insulin pumps, etc.
5. IoT devices: Wireless sensors, smart home devices, etc.

Detailed and Complete Alternative Models

While the S-8209AAH-T8T1U is a reliable IC for battery protection, there are alternative models available in the market that offer similar functionality. Some notable alternatives include:

1. S-8254A Series by Seiko Instruments
2. MAX17040 Series by Maxim Integrated
3. BQ2970 Series by Texas Instruments
4. LTC6803 Series by Analog Devices

These alternative models provide comparable features and can be considered based on specific application requirements.

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