TPS2819DBVTG4

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High-side power switch - Wide input voltage range - Low on-resistance - Overcurrent protection - Thermal shutdown protection

Package: SOT-23 (DBV)

Essence: The TPS2819DBVTG4 is a high-side power switch IC used for power management applications. It offers various features such as a wide input voltage range, low on-resistance, overcurrent protection, and thermal shutdown protection.

Packaging/Quantity: The TPS2819DBVTG4 is available in a SOT-23 package and is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• On-Resistance: 100mΩ (typical)
• Continuous Current Limit: 1.5A
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS2819DBVTG4 has the following pin configuration:

____ EN | | VCC IN | | OUT GND |____| PGND

• EN: Enable pin
• VCC: Supply voltage pin
• IN: Input control signal pin
• OUT: Output pin
• GND: Ground pin
• PGND: Power ground pin

Functional Features

1. High-Side Power Switch: The TPS2819DBVTG4 acts as a high-side power switch, allowing it to control the power supply to a load.
2. Wide Input Voltage Range: With an input voltage range of 2.7V to 5.5V, the IC can be used in various applications.
3. Low On-Resistance: The low on-resistance of 100mΩ (typical) minimizes power losses and improves efficiency.
4. Overcurrent Protection: The IC incorporates overcurrent protection, which helps prevent damage to the load and the IC itself.
5. Thermal Shutdown Protection: In case of excessive temperature, the thermal shutdown feature ensures the IC's safety by disabling the power switch.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - Low on-resistance enhances efficiency - Overcurrent and thermal shutdown protection ensure system safety

Disadvantages: - Limited continuous current limit of 1.5A may not be suitable for high-power applications

Working Principles

The TPS2819DBVTG4 operates as a high-side power switch by controlling the flow of current from the input to the output. When the enable pin (EN) is activated, the IC allows current to pass through from the input pin (IN) to the output pin (OUT). Conversely, when the enable pin is deactivated, the IC cuts off the current flow.

The low on-resistance of the IC minimizes power losses during operation, resulting in improved efficiency. Additionally, the IC incorporates overcurrent protection, which monitors the current flowing through the load and disables the power switch if it exceeds a certain threshold. Furthermore, the thermal shutdown protection feature ensures that the IC does not exceed its maximum operating temperature, preventing any potential damage.

Detailed Application Field Plans

The TPS2819DBVTG4 can be used in various power management applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial automation systems - Automotive applications - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to the TPS2819DBVTG4 include: - TPS2819DBVR - TPS2819DBVT - TPS2819DBVRG4 - TPS2819DBVTG4

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

In conclusion, the TPS2819DBVTG4 is a high-side power switch IC that offers a wide input voltage range, low on-resistance, overcurrent protection, and thermal shutdown protection. Its compact SOT-23 package makes it suitable for various power management applications. However, its limited continuous current limit may restrict its use in high-power applications.