사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Controller (PD), DC/DC |
| NumberofChannels | 1 |
| Power-Max | 13 W |
| InternalSwitch(s) | Both |
| AuxiliarySense | No |
| Standards | 802.3at (PoE+), 802.3af (PoE) |
| Voltage-Supply | 0V ~ 57V |
| Current-Supply | 920µA |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 20-TSSOP (0.173, 4.40mm Width) |
개요
Description
The TPS23757PWR is a power management integrated circuit (IC) designed by Texas Instruments, primarily for Power over Ethernet (PoE) applications. It combines a PoE powered device (PD) interface with a DC-DC controller optimized for isolated and non-isolated flyback topologies, making it ideal for applications requiring power conversion and PoE capabilities.
Key features include support for IEEE 802.3af/at standards, which ensure compatibility with standard PoE systems. It integrates a PD controller with an internal switch, signature resistor detection, and classification, facilitating power negotiation with a Power Sourcing Equipment (PSE). The device operates efficiently with a wide input voltage range, typically from 12.95V to 57V.
The TPS23757PWR is suitable for use in IP phones, wireless access points, network cameras, and other PoE-enabled devices. With integrated features like thermal protection and programmable start-up time, it provides robust performance in demanding conditions. Its compact footprint enables streamlined design for space-constrained applications.
Key features include support for IEEE 802.3af/at standards, which ensure compatibility with standard PoE systems. It integrates a PD controller with an internal switch, signature resistor detection, and classification, facilitating power negotiation with a Power Sourcing Equipment (PSE). The device operates efficiently with a wide input voltage range, typically from 12.95V to 57V.
The TPS23757PWR is suitable for use in IP phones, wireless access points, network cameras, and other PoE-enabled devices. With integrated features like thermal protection and programmable start-up time, it provides robust performance in demanding conditions. Its compact footprint enables streamlined design for space-constrained applications.
Equivalent
The TPS23757PWR is a Power over Ethernet (PoE) controller from Texas Instruments. Equivalent products from other manufacturers may include:
1. Microchip's PD70224ILQ - PoE Powered Device Controller
2. Silicon Labs' Si3404-B - PoE PD and DC-DC Converter
3. Analog Devices' LT4275 - PoE Interface Controller
These alternatives offer similar PoE functionality, though specific electrical characteristics and features should be compared based on your design requirements.
1. Microchip's PD70224ILQ - PoE Powered Device Controller
2. Silicon Labs' Si3404-B - PoE PD and DC-DC Converter
3. Analog Devices' LT4275 - PoE Interface Controller
These alternatives offer similar PoE functionality, though specific electrical characteristics and features should be compared based on your design requirements.
Features
The TPS23757PWR is a highly integrated Power over Ethernet (PoE) controller designed for powering devices through Ethernet cables. Key features include:
1. IEEE 802.3at Compliance: Supports PoE+ applications, suitable for delivering up to 25.5W to powered devices.
2. Integrated MOSFET: Features an integrated power MOSFET for efficient power conversion, reducing external component count.
3. Flexible Configuration: Offers flexible design options with programmable frequency and soft-start capabilities to accommodate various applications.
4. DC/DC Controller: Includes a PWM controller that supports multiple topologies such as flyback, forward, and active clamp forward.
5. Enhanced Protection: Provides overcurrent, thermal, and short-circuit protection to ensure device reliability and longevity.
6. High Efficiency: Designed for high-efficiency power conversion to minimize power losses and improve thermal performance.
7. Compact Package: Offered in a compact TSSOP package, optimizing board space for dense designs.
These features make it ideal for a range of PoE applications, including IP cameras, VoIP phones, and wireless access points.
1. IEEE 802.3at Compliance: Supports PoE+ applications, suitable for delivering up to 25.5W to powered devices.
2. Integrated MOSFET: Features an integrated power MOSFET for efficient power conversion, reducing external component count.
3. Flexible Configuration: Offers flexible design options with programmable frequency and soft-start capabilities to accommodate various applications.
4. DC/DC Controller: Includes a PWM controller that supports multiple topologies such as flyback, forward, and active clamp forward.
5. Enhanced Protection: Provides overcurrent, thermal, and short-circuit protection to ensure device reliability and longevity.
6. High Efficiency: Designed for high-efficiency power conversion to minimize power losses and improve thermal performance.
7. Compact Package: Offered in a compact TSSOP package, optimizing board space for dense designs.
These features make it ideal for a range of PoE applications, including IP cameras, VoIP phones, and wireless access points.
Pinout
The TPS23757PWR is an integrated circuit from Texas Instruments designed for Power over Ethernet (PoE) applications, specifically providing power and control for powered devices. It comes in a 16-pin TSSOP (Thin Shrink Small Outline Package). Here's a brief overview of the pin functions:
1. VDD: Power supply input.
2. RTN: Return path for power.
3. VSS: Ground reference.
4. PWR: Power good indication.
5. PVCC: Power VCC for internal use.
6. VC: Compensation pin for control loop.
7. CS: Current sense input.
8. GATE: Gate drive for external FET.
9. VCC: Bias supply input.
10. APD: Auxiliary power detect.
11. DEN: Detection enable.
12. CLS: Classification resistor connection.
13. SPARE: Reserved for future use or optional functionality.
14. NC: No connection; might be used for specific design considerations.
15. NC: Similar to the above, no connection.
16. VSS: Ground reference (repeated for stability).
These pins collectively enable the TPS23757PWR to manage PoE power delivery, control power conversion, and ensure efficient power management for Ethernet-powered applications.
1. VDD: Power supply input.
2. RTN: Return path for power.
3. VSS: Ground reference.
4. PWR: Power good indication.
5. PVCC: Power VCC for internal use.
6. VC: Compensation pin for control loop.
7. CS: Current sense input.
8. GATE: Gate drive for external FET.
9. VCC: Bias supply input.
10. APD: Auxiliary power detect.
11. DEN: Detection enable.
12. CLS: Classification resistor connection.
13. SPARE: Reserved for future use or optional functionality.
14. NC: No connection; might be used for specific design considerations.
15. NC: Similar to the above, no connection.
16. VSS: Ground reference (repeated for stability).
These pins collectively enable the TPS23757PWR to manage PoE power delivery, control power conversion, and ensure efficient power management for Ethernet-powered applications.
Manufacturer
The TPS23757PWR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is known for its wide range of products including analog electronics, embedded processors, digital light processing technology, and education technology, among others. The company plays a significant role in the electronics industry, providing components for numerous electronic devices and systems.
Application
The TPS23757PWR is a Power-over-Ethernet (PoE) interface and DC-DC converter controller designed for applications requiring efficient power management and conversion. Its primary application areas include VoIP phones, wireless access points, IP cameras, and other networked devices that utilize PoE for power delivery. This device is suitable for designs that need to comply with IEEE 802.3af/at standards, offering flexibility in power conversion with its integrated DC-DC controller. Additionally, it supports isolated and non-isolated converter topologies, making it versatile for a range of networked equipment requiring efficient power conversion from Ethernet cables.
Package
The TPS23757PWR is a Power over Ethernet (PoE) interface and DC-DC controller IC from Texas Instruments, typically used in power delivery systems. It is provided in a TSSOP (Thin Shrink Small Outline Package) with 16 pins, denoted by the "PWR" suffix in the part number.
