Overview
The TPS23753APWR, produced by Texas Instruments, is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller. This component is optimized specifically for isolated converter designs and supports the IEEE 802.3at standard as a 13-W, type 1 PD. The TPS23753APWR integrates all the necessary features for implementing an IEEE 802.3at Type 1 powered device, including detection, classification, and a 140-mA inrush current mode DC-DC controller.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | 14-Pin TSSOP | - |
| Input Voltage Range | VDD, VDD1, DEN, RTN | -0.3 V to 100 V |
| Junction Temperature Range | -40°C to 125°C | - |
| ESD Capability | System Level | 15 kV / 8 kV |
| Hotswap MOSFET | Resistance and Voltage | 0.7 Ω, 100 V |
| Power Rating | IEEE 802.3at Type 1 PD | 13 W |
| ORing Options | Highest Voltage, External Adapter Preference, PoE Preference | - |
| Programmable Frequency | Synchronization with External Timing Reference | - |
Key Features
- Enhanced ESD ride-through capability
- Optimized for isolated converters
- Complete PoE interface supporting IEEE 802.3at standard
- Adapter ORing support with options for highest voltage, external adapter preference, and PoE preference
- 12-V adapter support
- Programmable frequency with synchronization to a higher-frequency external timing reference
- Robust 100-V, 0.7-Ω hotswap MOSFET
- Small 14-Pin TSSOP package
- 15-kV and 8-kV system level ESD capable
- Bootstrap startup mechanism with internal, switched current source for DC-DC controller
Applications
- IEEE 802.3at compliant powered devices
- VoIP telephones
- Access points
- Security cameras
Q & A
- What is the TPS23753APWR?
The TPS23753APWR is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller optimized for isolated converter designs.
- What standard does the TPS23753APWR support?
The TPS23753APWR supports the IEEE 802.3at standard as a 13-W, type 1 PD.
- What are the key features of the TPS23753APWR?
Key features include enhanced ESD ride-through capability, complete PoE interface, adapter ORing support, 12-V adapter support, programmable frequency with synchronization, and a robust 100-V, 0.7-Ω hotswap MOSFET.
- What is the package type of the TPS23753APWR?
The TPS23753APWR comes in a small 14-Pin TSSOP package.
- What is the junction temperature range of the TPS23753APWR?
The junction temperature range is -40°C to 125°C.
- What are the ESD capabilities of the TPS23753APWR?
The device is 15 kV and 8 kV system level ESD capable.
- How does the DC-DC controller in the TPS23753APWR start up?
The DC-DC controller features a bootstrap startup mechanism with an internal, switched current source.
- Can the oscillator in the TPS23753APWR be synchronized?
Yes, the programmable oscillator can be synchronized to a higher-frequency external timing reference.
- What are some common applications of the TPS23753APWR?
Common applications include IEEE 802.3at compliant powered devices, VoIP telephones, access points, and security cameras.
- How can the classification be programmed in the TPS23753APWR?
Classification can be programmed to any of the defined types with a single resistor.
