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Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputIsolation | Isolated |
| InternalSwitch(s) | No |
| Topology | Forward |
| Voltage-StartUp | 16 V |
| Voltage-Supply(Vcc/Vdd) | 7V ~ 26V |
| DutyCycle | 80% |
| Frequency-Switching | 100kHz ~ 600kHz |
| FaultProtection | Current Limiting, Over Temperature, Short Circuit |
| ControlFeatures | EN, Frequency Control, Soft Start, Sync |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| Package/Case | 16-WFQFN Exposed Pad |
| SupplierDevicePackage | 16-TQFN (3x3) |
Обзор
Description
The MAX5974AETE+T is a high-performance, current-mode PWM controller designed for applications requiring efficient power delivery, such as Power over Ethernet (PoE) systems. It integrates numerous features that enhance performance and reliability in power supply designs. Key features include programmable frequency, which allows designers to optimize performance for specific requirements, and adaptive slope compensation to stabilize the system across varying loads. The controller supports active-clamped, current-fed topologies, which contribute to high efficiency and reduced stress on components. Additionally, it offers programmable soft-start to minimize inrush current during startup and has overcurrent and thermal protection to enhance safety and durability. The MAX5974AETE+T operates over a wide input range, making it versatile for different power environments. Its compact form factor and high level of integration simplify the design process and reduce the number of required external components, contributing to a more cost-effective and space-efficient solution. This device is ideal for use in telecom, datacom, and other applications that require reliable and efficient power management.
Equivalent
The MAX5974AETE+T is a power management IC used for Power-over-Ethernet (PoE) applications. Equivalent products include:
1. TPS23754 from Texas Instruments
2. LTC4267 from Analog Devices
3. Si3404 from Silicon Labs
These ICs offer similar functionalities for PoE applications, but specific features and performance can vary, so it's essential to compare datasheets to ensure compatibility with your design requirements.
1. TPS23754 from Texas Instruments
2. LTC4267 from Analog Devices
3. Si3404 from Silicon Labs
These ICs offer similar functionalities for PoE applications, but specific features and performance can vary, so it's essential to compare datasheets to ensure compatibility with your design requirements.
Features
The MAX5974AETE+T is a high-performance controller designed for Power-over-Ethernet (PoE) powered devices. Key features include:
1. IEEE 802.3af/at Compliance: Supports PoE, ensuring compatibility with industry standards for power delivery over Ethernet cables.
2. Integrated DC-DC Controller: Optimized for isolated and non-isolated power-supply topologies, enhancing power efficiency and simplifying design.
3. High-Efficiency Operation: Designed to provide high efficiency across a wide range of load conditions, reducing heat and improving system reliability.
4. Programmable Frequency and Slope Compensation: Offers flexibility and stability in system design by allowing frequency adjustments and slope compensation setup.
5. Adjustable Current Limit: Protects against over-current conditions, enhancing system safety and reliability.
6. Thermal Shutdown Protection: Prevents damage from excessive temperatures, providing robust protection under fault conditions.
7. Integrated High-Voltage Startup Circuit: Facilitates start-up directly from the PoE voltage, simplifying the power-on sequence.
These features make the MAX5974AETE+T suitable for applications in PoE-powered devices, particularly where efficiency and compliance with PoE standards are critical.
1. IEEE 802.3af/at Compliance: Supports PoE, ensuring compatibility with industry standards for power delivery over Ethernet cables.
2. Integrated DC-DC Controller: Optimized for isolated and non-isolated power-supply topologies, enhancing power efficiency and simplifying design.
3. High-Efficiency Operation: Designed to provide high efficiency across a wide range of load conditions, reducing heat and improving system reliability.
4. Programmable Frequency and Slope Compensation: Offers flexibility and stability in system design by allowing frequency adjustments and slope compensation setup.
5. Adjustable Current Limit: Protects against over-current conditions, enhancing system safety and reliability.
6. Thermal Shutdown Protection: Prevents damage from excessive temperatures, providing robust protection under fault conditions.
7. Integrated High-Voltage Startup Circuit: Facilitates start-up directly from the PoE voltage, simplifying the power-on sequence.
These features make the MAX5974AETE+T suitable for applications in PoE-powered devices, particularly where efficiency and compliance with PoE standards are critical.
Pinout
The MAX5974AETE+T is a high-performance, current-mode PWM controller designed for isolated power-supply applications. It comes in a 16-pin TQFN (Thin Quad Flat No-Lead) package.
Key functions of the MAX5974AETE+T include:
- It is optimized for active-clamped forward and flyback converters.
- It features programmable switching frequency, cycle-by-cycle current limit, and a hiccup-mode overload protection.
- It supports a wide input voltage range and provides high efficiency across varied loads.
- The device includes various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.
This controller is ideal for power supplies used in networking, telecom, and datacom applications due to its high efficiency and flexibility.
Key functions of the MAX5974AETE+T include:
- It is optimized for active-clamped forward and flyback converters.
- It features programmable switching frequency, cycle-by-cycle current limit, and a hiccup-mode overload protection.
- It supports a wide input voltage range and provides high efficiency across varied loads.
- The device includes various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.
This controller is ideal for power supplies used in networking, telecom, and datacom applications due to its high efficiency and flexibility.
Manufacturer
The MAX5974AETE+T is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for designing and manufacturing a broad range of integrated circuits (ICs) and system solutions. The company specializes in data conversion and signal processing technology, providing products and services for a wide variety of applications across industries such as communications, automotive, healthcare, industrial automation, consumer electronics, and more. Their portfolio includes analog and mixed-signal ICs, digital signal processors, sensors, and other components that are essential in translating real-world phenomena into measurable and manageable data.
Package
The MAX5974AETE+T is a power-management IC from Maxim Integrated, specifically in a 16-pin TQFN (Thin Quad Flat No-Lead) package. The '+T' typically denotes that the parts are supplied in tape-and-reel packaging for automated assembly processes.