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TPS2490DGSR
Product Overview
Category
The TPS2490DGSR belongs to the category of power management integrated circuits (PMICs).
Use
It is primarily used for hot swap controllers in power distribution systems.
Characteristics
- The TPS2490DGSR is a high-voltage, precision current-limited power distribution switch.
- It offers an adjustable current limit and fast overcurrent response time.
- The device operates with input voltages ranging from 2.7V to 18V.
- It has a low on-resistance of typically 20mΩ.
Package
The TPS2490DGSR comes in a small-outline, thin package (8-pin VSSOP) that allows for easy integration into various circuit designs.
Essence
The essence of the TPS2490DGSR lies in its ability to provide reliable and efficient power distribution control, ensuring protection against excessive current flow.
Packaging/Quantity
The TPS2490DGSR is typically packaged in reels, with 2500 units per reel.
Specifications
- Input Voltage Range: 2.7V to 18V
- Adjustable Current Limit Range: 0.1A to 3.5A
- On-Resistance: Typically 20mΩ
- Operating Temperature Range: -40°C to +85°C
- Quiescent Current: 10µA (max)
Detailed Pin Configuration
The TPS2490DGSR features the following pin configuration:
- EN (Enable): Controls the enable/disable function of the device.
- ILIM (Current Limit): Sets the desired current limit.
- GND (Ground): Ground reference for the device.
- IN (Input): Connects to the input voltage source.
- FLT (Fault): Provides fault indication when an overcurrent condition occurs.
- OUT (Output): Connects to the load or downstream circuitry.
- PG (Power Good): Indicates when the output voltage is within regulation limits.
- VCC (Supply Voltage): Provides power supply for internal circuitry.
Functional Features
- Adjustable current limit allows customization based on specific application requirements.
- Fast overcurrent response time ensures prompt protection against excessive current flow.
- Power good indication enables monitoring of output voltage regulation.
- Fault indication alerts users in case of overcurrent conditions.
Advantages and Disadvantages
Advantages
- Precise current limiting capability.
- Fast response time for overcurrent protection.
- Wide input voltage range.
- Small package size for easy integration.
Disadvantages
- Limited maximum current limit range.
- Requires external components for complete power distribution system implementation.
Working Principles
The TPS2490DGSR operates by continuously monitoring the current flowing through it. When the current exceeds the set limit, the device responds quickly by disabling the output and signaling a fault condition. This protects the downstream circuitry from potential damage due to excessive current.
Detailed Application Field Plans
The TPS2490DGSR finds applications in various fields, including: 1. Server power supplies 2. Telecom infrastructure 3. Industrial automation 4. Automotive electronics 5. Portable devices
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the TPS2490DGSR include: - TPS2491DGSR - TPS2492DGSR - TPS2493DGSR - TPS2494DGSR
These models provide comparable features and can be considered as alternatives based on specific application requirements.
In conclusion, the TPS2490DGSR is a high-voltage, precision current-limited power distribution switch used in various industries. Its adjustable current limit, fast response time, and small package size make it a reliable choice for power management applications. However, it is important to consider alternative models based on specific needs and requirements.
Liste 10 perguntas e respostas comuns relacionadas à aplicação de TPS2490DGSR em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of TPS2490DGSR in technical solutions:
Q: What is the TPS2490DGSR? A: The TPS2490DGSR is a hot-swap controller IC designed for use in power distribution systems.
Q: What is the purpose of the TPS2490DGSR? A: The TPS2490DGSR provides protection against overcurrent and overvoltage conditions during hot-plug events.
Q: How does the TPS2490DGSR protect against overcurrent? A: The TPS2490DGSR monitors the current flowing through the load and quickly shuts off the MOSFET switch if an overcurrent condition is detected.
Q: Can the TPS2490DGSR handle high voltage applications? A: Yes, the TPS2490DGSR can handle input voltages up to 80V, making it suitable for a wide range of applications.
Q: Is the TPS2490DGSR compatible with different load types? A: Yes, the TPS2490DGSR is compatible with both resistive and inductive loads, making it versatile for various applications.
Q: Does the TPS2490DGSR have built-in thermal protection? A: Yes, the TPS2490DGSR has a thermal shutdown feature that protects the device from overheating.
Q: Can the TPS2490DGSR be used in parallel configurations? A: Yes, multiple TPS2490DGSR devices can be connected in parallel to achieve higher current handling capabilities.
Q: What is the typical operating temperature range for the TPS2490DGSR? A: The TPS2490DGSR can operate within a temperature range of -40°C to 125°C.
Q: Does the TPS2490DGSR require external components for operation? A: Yes, the TPS2490DGSR requires external MOSFETs, sense resistors, and capacitors for proper operation.
Q: Are there any evaluation boards or reference designs available for the TPS2490DGSR? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help users quickly prototype and implement the TPS2490DGSR in their applications.
Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.