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TPS2379DDAR
+物料清單IC POE CNTRL 1 CHANNEL 8SOPWR
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製造商德州儀器
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製造商部分 #TPS2379DDAR
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有存貨5075
365 天品質保證
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90-日售後保障
正品保證
規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Controller (PD) |
| NumberofChannels | 1 |
| Power-Max | 25 W |
| InternalSwitch(s) | Yes |
| AuxiliarySense | No |
| Standards | IEEE 802.3 |
| Voltage-Supply | 0V ~ 57V |
| Current-Supply | 850mA |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
Key features of the TPS2379DDAR include a high-efficiency DC-DC converter, an integrated switching regulator, and support for both isolated and non-isolated applications. It also offers protection features such as thermal shutdown, overload protection, and under-voltage lockout, ensuring robust operation.
The device comes in a space-efficient package, suitable for compact designs, and supports flexible DC-DC topologies, including flyback, forward, and active clamp forward configurations. With its high integration, the TPS2379DDAR simplifies the design process and reduces the need for additional components, facilitating cost-effective and efficient PoE solutions.
Equivalent
1. Linear Technology LTC4267: Provides similar PoE interface and DC-DC conversion functionalities.
2. Microchip PD70224: Offers comparable PoE interface capabilities with integrated DC-DC features.
3. Silicon Labs Si3402-B: Another PoE controller with integrated features suitable for similar applications.
Always verify pin compatibility and electrical specifications before substituting.
Features
1. PoE Interface: Supports IEEE 802.3at Type 2, enabling power extraction up to 25.5W.
2. Integrated High-Efficiency DC/DC Controller: Capable of supporting various converter topologies like isolated flyback or forward converters.
3. Protection Features: Includes thermal shutdown, current limiting, and under-voltage lockout for enhanced reliability.
4. Integrated FET: For improved efficiency and reduced external components.
5. Programmable Features: Offers flexibility with programmable soft-start, frequency, and synchronous rectification.
6. Low Standby Power: Designed to minimize power consumption in standby mode.
7. Auxiliary Power Support: Allows seamless integration with auxiliary power sources.
8. Compact Package: Available in a space-saving 16-pin SOIC package.
These features make the TPS2379DDAR suitable for powering devices like IP phones, wireless access points, and network cameras via Ethernet cables.
Pinout
1. VDD: Powers the internal circuitry.
2. VSS: Ground reference.
3. RTN: Return path for the PD.
4. VOUT: Power output to the PD circuitry.
5. DEN: Detection input.
6. CLS: Classification resistor connection.
7. APD: Advanced Power Detection.
8. RDET: Detection resistor connection.
9. T2P: Indicates power status from PSE.
10. NC: No connection.
11. RST: Reset functionality.
12. CT: Timing capacitor for sequencing.
13. SD/THR: Shutdown or thermal regulation.
14. PGA: Power Good Alarm.
15. PGD: Power Good indication.
16. NC: No connection.
17. NC: No connection.
18. NC: No connection.
19. NC: No connection.
20. NC: No connection.
These pins collectively support the PoE functionality, controlling power delivery, detection, classification, and maintaining power integrity for powered devices. Always refer to the datasheet for detailed specifications and electrical characteristics.