Overview
The TPS23753A, produced by Texas Instruments, is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller. It is specifically optimized for isolated converter designs and supports the IEEE 802.3at standard as a 13-W, type 1 PD. This device integrates a complete PoE interface and a robust DC-DC controller, making it suitable for a variety of applications requiring reliable and efficient power management.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW), 14 Pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range (VDD, VDD1, RTN) | 0 to 57 V |
| Input Voltage Range (VC to RTN) | 0 to 18 V |
| Hotswap MOSFET | 100 V, 0.7 Ω |
| System Level ESD Capability | 15 kV and 8 kV |
| Junction Temperature Range | -40°C to 125°C |
Key Features
- Enhanced ESD ride-through capability
- Optimized for isolated converters
- Complete PoE interface supporting IEEE 802.3at standard
- Adapter ORing support and 12-V adapter support
- Programmable frequency with synchronization
- Robust 100-V, 0.7-Ω hotswap MOSFET
- Small 14-Pin TSSOP package
- 15-kV and 8-kV system level ESD capable
- Bootstrap start-up mechanism with internal, switched current source
Applications
- IEEE 802.3at Compliant Powered Devices
- VoIP Telephones
- Access Points
- Industrial Gateways
- IP Cameras and other IoT devices requiring PoE
Q & A
- What is the TPS23753A optimized for? The TPS23753A is optimized for isolated converter designs.
- What PoE standard does the TPS23753A support? The TPS23753A supports the IEEE 802.3at standard as a 13-W, type 1 PD.
- What is the operating temperature range of the TPS23753A? The operating temperature range is -40°C to 125°C.
- What is the package type and pin count of the TPS23753A? The package type is TSSOP (PW) with 14 pins.
- Does the TPS23753A have ESD protection? Yes, it is 15-kV and 8-kV system level ESD capable.
- What type of MOSFET does the TPS23753A feature? It features a robust 100-V, 0.7-Ω hotswap MOSFET.
- Can the frequency of the TPS23753A be programmed? Yes, the frequency is programmable with synchronization.
- What is the purpose of the external detection signature pin? The external detection signature pin can also be used to disable the internal hotswap MOSFET.
- Can the classification of the PoE device be programmed? Yes, classification can be programmed to any of the defined types with a single resistor.
- What are some common applications of the TPS23753A? Common applications include VoIP telephones, access points, industrial gateways, and IP cameras.
