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IC POE CNTRL 12 CHANNEL 52QFN
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製造商ADI公司
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製造商部分 #LTC4270BIUKG#TRPBF
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有存貨2772
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規格
| 屬性 | 價值 |
| Part Status | Active |
| Type | Controller (PSE) |
| Number of Channels | 12 |
| Power - Max | 25.5 W |
| Internal Switch(s) | No |
| Auxiliary Sense | No |
| Standards | 802.3at (PoE+), 802.3af (PoE), LTPoE++ |
| Voltage - Supply | 45V ~ 57V |
| Supply Current | 9mA |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 52-WFQFN Exposed Pad |
| Supplier Device Package | 52-QFN (7x8) |
| Base Product Number | LTC4270 |
概述
Description
Key features include advanced power management, fault protection, and flexibility in powering both standard and non-standard Ethernet devices. The "IUKG" in the part number indicates the specific package type and temperature rating, while the "TRPBF" denotes tape and reel packaging for automated assembly processes and RoHS compliance.
This controller is used in various applications, such as network switches, routers, and other network infrastructure components, providing efficient power management and enhanced performance for Ethernet networks.
Equivalent
1. TI's TPS23861: A quad-port PoE PSE controller.
2. Microchip's PSE8724: A 24-port PoE PSE manager.
3. Maxim's MAX5980: A quad-port PSE controller.
Always verify compatibility in terms of features, specifications, and intended application when choosing an equivalent.
Features
1. IEEE Compliance: It adheres to the IEEE 802.3at (PoE+) standard, supporting both Type 1 (13W) and Type 2 (25.5W) power levels.
2. Dual Controllers: The device can control two independent PoE interfaces, maximizing design flexibility and efficiency.
3. High Surge Protection: It includes robust electrical protection against lightning surges and ESD events.
4. Autonomous Operation: Supports automatic detection and classification of powered devices, streamlining deployment and reducing the need for manual configuration.
5. I2C Interface: Offers an I2C interface for enhanced communication and control, allowing for integration with complex systems.
6. Wide Temperature Range: Operates effectively in a temperature range from -40°C to +85°C, making it suitable for various environments.
7. Compact Package: Available in a compact QFN package, facilitating space-efficient designs.
These features make the LTC4270BIUKG#TRPBF an ideal choice for applications requiring reliable PoE functionality.
Pinout
For the LTC4270, the typical package is a 5mm × 7mm QFN package with 32 pins. The functions of these pins include power management, communication with the LTC4271, and supporting PoE functions such as detection, classification, and powering of powered devices. This interface facilitates the delivery of power over the Ethernet cables while ensuring safe operation and compliance with the IEEE 802.3at standard, commonly referred to as PoE+.
For the most accurate and specific pin functions and configurations, refer to the manufacturer's datasheet and technical documentation relevant to the exact variant and part number you are working with.