BQ24200DGN

Product Overview

Category

BQ24200DGN belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

The BQ24200DGN is primarily used for battery charging applications in various electronic devices, such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

• The BQ24200DGN is a highly efficient single-cell Li-ion battery charger.
• It supports a wide input voltage range, making it suitable for different power sources.
• This IC incorporates various safety features like thermal regulation, overvoltage protection, and short-circuit protection.
• It offers programmable charge current and termination settings, allowing flexibility in charging different battery capacities.
• The BQ24200DGN also includes a system load sharing feature, enabling simultaneous charging and discharging.

Package and Quantity

The BQ24200DGN is available in a 8-pin plastic dual in-line package (PDIP). It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Charge Voltage: 4.2V
• Charge Current Range: 0.5A to 2A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 92%
• Standby Current: <100µA

Pin Configuration

The BQ24200DGN has eight pins arranged as follows:

```

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| | | U | | | |___________|

Pin Configuration:

1. VBUS
2. STAT
3. PG
4. TS
5. EN
6. ISET
7. GND
8. BAT ```

Functional Features

• VBUS: This pin is used to connect the input power source.
• STAT: Provides charging status information through different voltage levels.
• PG: Indicates the battery charging status.
• TS: Connects to a thermistor for temperature monitoring.
• EN: Enables or disables the charger.
• ISET: Sets the charge current limit.
• GND: Ground reference for the IC.
• BAT: Connects to the positive terminal of the battery.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows compatibility with various power sources. - Programmable charge current and termination settings offer flexibility. - Incorporates safety features for reliable battery charging. - System load sharing enables simultaneous charging and discharging.

Disadvantages: - Limited to single-cell Li-ion battery charging applications. - May require additional external components for certain configurations.

Working Principles

The BQ24200DGN operates by regulating the charging process of a single-cell Li-ion battery. It monitors the input voltage, battery voltage, and temperature to ensure safe and efficient charging. The charge current and termination settings can be programmed according to the specific battery capacity. The IC also provides protection against overvoltage, short-circuit, and thermal events, ensuring the safety of the battery and the device.

Application Field Plans

The BQ24200DGN is widely used in portable electronic devices that require single-cell Li-ion battery charging. Some common application fields include: - Smartphones - Tablets - Portable media players - Bluetooth headsets - Wearable devices

Alternative Models

For similar battery charging applications, alternative models to consider are: - BQ24075RGTR - MCP73831T-2ACI/OT - LTC4054LES5-4.2#TRMPBF - MAX1551EZK+T

These alternative models offer similar functionalities and can be suitable replacements for the BQ24200DGN depending on specific requirements.

In conclusion, the BQ24200DGN is a highly efficient single-cell Li-ion battery charger IC used in various portable electronic devices. Its programmable settings, safety features, and system load sharing capability make it a reliable choice for battery charging applications.