TPS25940AQRVCTQ1

Product Overview

Category

The TPS25940AQRVCTQ1 belongs to the category of electronic components, specifically power management integrated circuits (PMICs).

Use

This product is primarily used for overvoltage and overcurrent protection in various electronic systems.

Characteristics

• Overvoltage protection: The TPS25940AQRVCTQ1 offers robust protection against voltage spikes, ensuring the safety of connected devices.
• Overcurrent protection: It can detect and limit excessive current flow, preventing damage to the system.
• Low power consumption: The device itself consumes minimal power, making it suitable for battery-powered applications.
• Fast response time: The TPS25940AQRVCTQ1 quickly reacts to abnormal voltage or current conditions, providing timely protection.

Package

The TPS25940AQRVCTQ1 is available in a small form factor package, such as a 16-pin quad flat no-lead (QFN) package.

Essence

The essence of the TPS25940AQRVCTQ1 lies in its ability to safeguard electronic systems by effectively managing voltage and current levels.

Packaging/Quantity

This product is typically supplied in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Input voltage range: 2.7V to 18V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 10µA (typical)
• Overvoltage threshold: Programmable from 2.8V to 18V
• Overcurrent threshold: Programmable from 100mA to 4A
• Response time: <1µs

Detailed Pin Configuration

The TPS25940AQRVCTQ1 features a 16-pin QFN package with the following pin configuration:

1. EN (Enable)
2. IN (Input voltage)
3. GND (Ground)
4. PG (Power good)
5. FLT (Fault)
6. OCSET (Overcurrent threshold setting)
7. OVSET (Overvoltage threshold setting)
8. VREF (Reference voltage)
9. SS (Soft-start)
10. UVLO (Undervoltage lockout)
11. NC (No connection)
12. NC
13. NC
14. NC
15. OUT (Output voltage)
16. OUT

Functional Features

• Overvoltage protection: The TPS25940AQRVCTQ1 monitors the input voltage and disconnects the output when it exceeds the programmed threshold.
• Overcurrent protection: It limits the output current to a safe level when an overcurrent condition is detected.
• Fault indication: The FLT pin provides a signal indicating the occurrence of a fault condition.
• Power good indication: The PG pin indicates whether the output voltage is within the acceptable range.
• Soft-start: The SS pin allows for a controlled ramp-up of the output voltage during startup.

Advantages and Disadvantages

Advantages

• Robust protection against voltage spikes and excessive current flow.
• Low power consumption, suitable for battery-powered applications.
• Fast response time ensures timely protection.
• Programmable thresholds provide flexibility in different applications.

Disadvantages

• Limited to a specific voltage and current range.
• Requires careful consideration of the application's requirements for proper configuration.

Working Principles

The TPS25940AQRVCTQ1 operates based on a combination of voltage and current monitoring techniques. It continuously measures the input voltage and compares it to the programmed overvoltage threshold. If the voltage exceeds this threshold, the device disconnects the output to protect downstream components. Similarly, the TPS25940AQRVCTQ1 monitors the output current and limits it to a safe level when an overcurrent condition is detected. The device also provides fault and power good indications for system monitoring.

Detailed Application Field Plans

The TPS25940AQRVCTQ1 finds applications in various electronic systems that require reliable overvoltage and overcurrent protection. Some specific application fields include:

1. Automotive electronics: Protecting sensitive automotive components from voltage surges and excessive currents.
2. Industrial automation: Safeguarding control systems and equipment from electrical faults.
3. Consumer electronics: Ensuring the safety of devices such as smartphones, tablets, and laptops.
4. Power distribution systems: Preventing damage to power supply units and connected devices.

Detailed and Complete Alternative Models

1. TPS25942AQRVCTQ1: Similar to the TPS25940AQRVCTQ1, but with additional features like adjustable slew rate control.
2. TPS25944AQRVCTQ1: Offers higher current handling capability compared to the TPS25940AQRVCTQ1.
3. TPS25946AQR