TPS24720RGTT - English Editing Encyclopedia Entry

Product Overview

Category

The TPS24720RGTT belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for overvoltage protection in various electronic systems.

Characteristics

• Overvoltage protection: The TPS24720RGTT offers reliable protection against overvoltage conditions, safeguarding sensitive components.
• High efficiency: This PMIC ensures efficient power management, minimizing energy losses.
• Fast response time: The TPS24720RGTT quickly detects and responds to overvoltage events, preventing potential damage.
• Compact package: It is available in a small package, making it suitable for space-constrained applications.
• Robust design: The TPS24720RGTT is designed to withstand harsh operating conditions, ensuring long-term reliability.

Package and Quantity

The TPS24720RGTT is available in a compact 16-pin QFN package. It is typically sold in reels containing a specified quantity, usually 250 or 300 units per reel.

Specifications

• Input voltage range: 2.5V to 18V
• Overvoltage threshold range: 3.3V to 18V
• Operating temperature range: -40°C to 125°C
• Quiescent current: 10µA (typical)
• Maximum output current: 1A
• Fault response time: <1µs

Pin Configuration

The TPS24720RGTT features a 16-pin QFN package with the following pin configuration:

1. EN (Enable)
2. GND (Ground)
3. PGND (Power Ground)
4. VCC (Supply Voltage)
5. OV (Overvoltage Threshold)
6. FB (Feedback)
7. SS (Soft Start)
8. COMP (Compensation)
9. VREF (Reference Voltage)
10. UVLO (Undervoltage Lockout)
11. OVP (Overvoltage Protection)
12. ILIM (Current Limit)
13. PG (Power Good)
14. OUT (Output)
15. BST (Bootstrap)
16. VIN (Input Voltage)

Functional Features

• Overvoltage protection: The TPS24720RGTT monitors the input voltage and activates the overvoltage protection mechanism when it exceeds the set threshold.
• Fast response time: It quickly shuts off the power path to prevent damage to downstream components in the event of an overvoltage condition.
• Soft start: The soft start feature ensures a controlled and gradual rise in output voltage during startup, reducing stress on the system.
• Power good indication: The PG pin provides a signal indicating that the output voltage is within the acceptable range.
• Undervoltage lockout: The UVLO feature disables the PMIC when the input voltage falls below a specified threshold, preventing improper operation.

Advantages and Disadvantages

Advantages

• Reliable overvoltage protection for sensitive components.
• High efficiency power management.
• Compact package suitable for space-constrained applications.
• Robust design for reliable operation in harsh conditions.
• Fast response time to prevent damage.

Disadvantages

• Limited maximum output current (1A).
• Requires external components for complete functionality.
• Higher cost compared to basic voltage regulators.

Working Principles

The TPS24720RGTT operates by continuously monitoring the input voltage using the OV pin. When the input voltage exceeds the set threshold, the PMIC triggers the overvoltage protection mechanism, shutting off the power path to protect downstream components. The soft start feature ensures a controlled startup, gradually ramping up the output voltage. The UVLO feature prevents operation when the input voltage falls below a specified threshold.

Application Field Plans

The TPS24720RGTT finds applications in various electronic systems where overvoltage protection is critical. Some potential application fields include:

1. Industrial automation: Protecting sensitive control circuitry from voltage spikes.
2. Automotive electronics: Safeguarding vehicle electronics from voltage transients.
3. Telecommunications: Preventing damage to communication equipment during power surges.
4. Consumer electronics: Protecting portable devices from overvoltage events.

Alternative Models

For users seeking alternative options, the following PMICs can be considered:

1. TPS24721RGTT: Similar to TPS24720RGTT with enhanced features.
2. TPS24722RGTT: Higher maximum output current (2A) for more demanding applications.
3. TPS24723RGTT: Lower cost variant with basic overvoltage protection functionality.

These alternatives provide flexibility based on specific requirements and system constraints.

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