TPS2491DGSRG4

Overview

Category: Integrated Circuits (ICs)

Use: Power Management - Specialized

Characteristics: - Overvoltage Protection - Current Limiting - Hot Swap - Reverse Current Blocking - Power Distribution Switches

Package: 10-VSON (3x3)

Essence: The TPS2491DGSRG4 is a power management IC that provides overvoltage protection, current limiting, hot swap capability, reverse current blocking, and power distribution switches. It is designed for specialized power management applications.

Packaging/Quantity: The TPS2491DGSRG4 comes in a 10-VSON package and is available in reel quantities.

Specifications

• Input Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to +85°C
• Maximum Continuous Current: 5A
• Fault Threshold Accuracy: ±2%
• Quiescent Current: 50µA (typical)
• Power Dissipation: 1.5W (maximum)

Pin Configuration

The TPS2491DGSRG4 has the following pin configuration:

1. EN (Enable)
2. GND (Ground)
3. IN (Input Voltage)
4. OUT (Output Voltage)
5. FLT (Fault Indicator)
6. ILIM (Current Limit)
7. VREF (Reference Voltage)
8. PG (Power Good)
9. NC (No Connection)
10. NC (No Connection)

Functional Features

1. Overvoltage Protection: The TPS2491DGSRG4 monitors the input voltage and protects the downstream circuitry from excessive voltage levels.
2. Current Limiting: It limits the output current to prevent damage to the load or the power supply.
3. Hot Swap Capability: The IC allows for safe insertion and removal of a circuit board while the power is still applied.
4. Reverse Current Blocking: It prevents reverse current flow from the output to the input.
5. Power Distribution Switches: The TPS2491DGSRG4 includes integrated power switches that enable or disable power distribution to specific loads.

Advantages and Disadvantages

Advantages: - Provides comprehensive protection for power management applications - Compact package size - Wide input voltage range - Accurate fault threshold detection - Low quiescent current

Disadvantages: - Maximum continuous current may be limiting for high-power applications - Limited number of available pins for additional functionality

Working Principles

The TPS2491DGSRG4 works by continuously monitoring the input voltage and comparing it to a reference voltage. If the input voltage exceeds the set threshold, the IC activates the overvoltage protection mechanism, which limits the output voltage to protect downstream components. Additionally, the IC incorporates current sensing and limiting mechanisms to prevent excessive current flow. The hot swap capability ensures safe insertion and removal of the circuit board without causing disruptions or damage.

Detailed Application Field Plans

The TPS2491DGSRG4 is suitable for various power management applications, including but not limited to: - Server Power Supplies - Telecom Equipment - Industrial Control Systems - Battery Management Systems - Automotive Electronics

Detailed and Complete Alternative Models

1. TPS2490DGSRG4
2. TPS2492DGSRG4
3. TPS2493DGSRG4
4. TPS2494DGSRG4
5. TPS2495DGSRG4

These alternative models offer similar functionality and features, providing options for different specifications and requirements within the power management domain.

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