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TPS23753A
IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through
Data sheet
TPS23753A
- Enhanced ESD ride-through capability
- Optimized for isolated converters
- Complete PoE interface
- Adapter ORing support
- 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
- –40°C to 125°C junction temperature range
- Design procedure application note – SLVA305
- Adapter oring application note – SLVA306
The TPS23753A is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller optimized specifically for isolated converter designs. The PoE implementation supports the IEEE 802.3at standard as a 13-W, type 1 PD. The requirements for an IEEE 802.3at type 1 device are a superset of IEEE 802.3-2008 (originally IEEE 802.3af).
The TPS23753A supports a number of input-voltage ORing options including highest voltage, external adapter preference, and PoE preference.
The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor.
The DC-DC controller features a bootstrap start-up mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pullup resistor.
The programmable oscillator may be synchronized to a higher-frequency external timing reference. The TPS23753A features improvements for uninterrupted device operation through an ESD event.
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Evaluation board
TPS23753AEVM-001 — 5Vout, 7W, IEEE 802.3-2005 Compliant, PD Controller, PS Controller EVM for TPS23753AEVM-001
The TPS23753AEVM-001 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-002 (3.3-V output) can be configured with simple (...)
User guide: PDF
Evaluation board
TPS23753AEVM-004 — TPS23753AEVM-004 3.3Vout 10W IEEE 802.3-2005 Compliant PD Contr, PS Contr Evaluation Module
TPS23753AEVM-004 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-003 (5-V output) and TPS23753AEVM-005 (12-V output) (...)
User guide: PDF
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs
PMP11107 — Class 3 Dual Output Isolated Flyback Converter for PoE Applications Reference Design
This converter is used for Class 3 PoE applications that require 3.3V/1A and 5V/1A outputs. The dual output flyback converter with synchronous rectifiers provides excellent efficiency and small size for PoE applications, such as an IP phone. The TPS23753A contains both the PoE powered device (...)
Reference designs
TIDM-1018 — Power Over Ethernet® (PoE) Reference Design for Industrial Gateways
This reference design integrates TI's Power over Ethernet (PoE) with the high-performance SimpleLink™ MSP432E4 Ethernet microcontroller (MCU) with Ethernet to enable customers to develop applications for Internet of Things (IoT) in a small form factor board. The design increases the value of (...)
Reference designs
PMP11271 — Class 3 PoE Isolated Flyback Converter/Buck POL Converter (5V/1.25A, 3.3V/1.075A) Reference Design
The PMP11271 reference design is ideal for Class 3 PoE PD applications such as IP phones. The TPS23753A combined PD controller/PWM controller saves cost and size by providing both functions is a single package. The TPS62082 synchronous buck converter has integrated FETs, resulting (...)
Reference designs
PMP20531 — Class 3, Cost Optimized, Isolated PoE Flyback Converter Reference Design (12V/625mA)
The PMP20531 reference design is an isolated flyback converter utilizing the TPS23753A combined PoE PD controller and PWM controller. Diode rectification provides a cost effective design for use in PoE applications such as IP security cameras. The input is the standard PoE voltage (...)
Reference designs
TIDM-TM4C129POEAUDIO — Audio Communication With Power Over Ethernet (PoE) Reference Design
This design uses Texas Instrument's high performance TM4C129x microcontrollers (MCUs) with integrated Ethernet PHY to capture, exchange and playback audio efficiently with power supplied over the network (PoE solution) instead of separate external power sources. The application uses TivaWare (...)
Reference designs
TIDM-TM4C129POE — TM4C129POE Power Over Ethernet (PoE) Reference Design for Connected IoT
This design integrates Texas Instruments PoE solutions with TM4C129x high performance microcontrollers to enable customers to develop applications for IoT in a small form factor board. Ability to derive power over existing network cable with intelligence to gather, process and exchange data with (...)
Reference designs
PMP9175 — Class 3 5V/2.3A High Efficiency Synchronous Flyback Converter for PoE Application Reference Design
This converter is used for Class 3 PoE applications where high efficiency and isolation are required. The specific output for this design is 5V@2.3A. The flyback converter with synchronous rectifier provides excellent efficiency and small size for PoE applications such as a IP Phones. The (...)
Reference designs
TIDA-00079 — Class 1 PoE - High Efficiency IP Camera Power Module Reference Design
This IP Camera power module is a highly efficient power solution that enables high performance 1080p operation at the Class 1 PoE power level. This innovative power module, used in the low power DM385-AR331 IP Camera, relies on highly efficient switchers like the TPS5432 that are also very cost (...)
Reference designs
PMP7355 — Class 3,Cost-Optimized,Flyback Converter Reference Design for PoE Applications
This reference evaluation module, featuring the TPS23753A PoE interface and isolated converter controller, is used for class 3 PoE applications where low cost is required.
The flyback topology with diode rectifier results in a low cost converter with reasonable size and efficiency.
Reference designs
PMP8803 — Class 3- Low Cost 12V/1A Flyback Converter for PoE Applications Reference Design
This converter is used for Class 3 PoE applications. The flyback converter with diode rectifier offers low cost while still achieving good efficiency. This converter is well sutied for PoE applications such as IP security cameras. The TPS23753A contains both the PoE Powered Device and the PWM (...)
Test report: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
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