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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기술 자료
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TPS23753AEVM-001 — TPS23753AEVM-001용 5Vout, 7W, IEEE 802.3-2005 호환, PD 컨트롤러, PS 컨트롤러 EVM
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 (...)
TPS23753AEVM-004 — TPS23753AEVM-004 3.3Vout 10W IEEE 802.3-2005 호환 PD 컨트롤러, PS 컨트롤러 평가 모듈
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) (...)
SLUC480 — PoE PD Efficiency Calculator
많은 TI 레퍼런스 설계에는 TPS23753A이(가) 포함됩니다.
레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.