Voir les spécifications pour les détails du produit.
MAX4981ETA+T
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High-Efficiency Step-Down DC-DC Converter
- Package: 8-Pin TDFN
- Essence: Voltage Regulator
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Input Voltage Range: 4.5V to 60V
- Output Voltage Range: 0.9V to 0.95 x VIN
- Maximum Output Current: 2A
- Switching Frequency: 500kHz
- Efficiency: Up to 95%
- Operating Temperature Range: -40°C to +125°C
Pin Configuration
The MAX4981ETA+T has the following pin configuration:
- GND (Ground)
- SW (Switch Node)
- FB (Feedback)
- EN (Enable)
- SS/TRK (Soft-Start/Tracking)
- VCC (Supply Voltage)
- PGND (Power Ground)
- LX (Inductor Connection)
Functional Features
- High efficiency conversion of input voltage to output voltage.
- Wide input voltage range allows for versatile applications.
- Adjustable output voltage through feedback pin.
- Soft-start feature for controlled startup.
- Enable pin for easy on/off control.
- Overcurrent protection and thermal shutdown.
Advantages and Disadvantages
Advantages: - High efficiency results in less power dissipation. - Wide input voltage range provides flexibility. - Compact package size saves board space. - Overcurrent protection ensures device safety.
Disadvantages: - Limited maximum output current of 2A. - Higher switching frequency may require additional filtering.
Working Principles
The MAX4981ETA+T is a step-down DC-DC converter that efficiently converts a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency. The input voltage is connected to the SW pin, and the output voltage is obtained from the LX pin. The feedback pin (FB) allows for adjustable output voltage regulation. The enable pin (EN) controls the on/off state of the converter. The soft-start pin (SS/TRK) provides a controlled startup ramp for the output voltage.
Detailed Application Field Plans
The MAX4981ETA+T is commonly used in various applications, including:
- Industrial Automation: Powering control systems, motor drives, and sensors.
- Automotive Electronics: Providing power to infotainment systems, lighting, and ADAS modules.
- Telecommunications: Powering base stations, routers, and network equipment.
- Consumer Electronics: Supplying power to audio/video devices, gaming consoles, and home appliances.
- Renewable Energy: Power management in solar panels, wind turbines, and energy storage systems.
Detailed and Complete Alternative Models
- MAX4980ETA+T
- MAX4982ETA+T
- MAX4983ETA+T
- MAX4984ETA+T
- MAX4985ETA+T
- MAX4986ETA+T
- MAX4987ETA+T
- MAX4988ETA+T
- MAX4989ETA+T
These alternative models offer similar functionality and can be considered as replacements for the MAX4981ETA+T.
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Énumérez 10 questions et réponses courantes liées à l'application de MAX4981ETA+T dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of MAX4981ETA+T in technical solutions:
Q1: What is the MAX4981ETA+T? A1: The MAX4981ETA+T is a high-speed, low-power, single-supply, current-limited switch used for USB applications.
Q2: What is the maximum current rating of the MAX4981ETA+T? A2: The MAX4981ETA+T has a maximum current rating of 500mA.
Q3: Can the MAX4981ETA+T be used for other applications apart from USB? A3: Yes, the MAX4981ETA+T can also be used for other low-voltage applications that require current limiting and protection.
Q4: How does the current limiting feature work in the MAX4981ETA+T? A4: The MAX4981ETA+T uses a built-in current-limiting circuit that protects the device and the load by limiting the output current to a safe level.
Q5: What is the operating voltage range of the MAX4981ETA+T? A5: The MAX4981ETA+T operates within a voltage range of 2.7V to 5.5V.
Q6: Does the MAX4981ETA+T have thermal shutdown protection? A6: Yes, the MAX4981ETA+T includes thermal shutdown protection to prevent overheating.
Q7: Can the MAX4981ETA+T be used in battery-powered applications? A7: Yes, the low-power characteristics of the MAX4981ETA+T make it suitable for battery-powered applications.
Q8: Is the MAX4981ETA+T available in different package options? A8: Yes, the MAX4981ETA+T is available in a 6-pin SOT23 package.
Q9: Can the MAX4981ETA+T be used in high-speed data applications? A9: Yes, the MAX4981ETA+T is designed for high-speed data applications such as USB 2.0.
Q10: Are there any evaluation kits or reference designs available for the MAX4981ETA+T? A10: Yes, Maxim Integrated provides evaluation kits and reference designs to help with the implementation of the MAX4981ETA+T in various 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 consult with the manufacturer for detailed information.