TPS23751PWP
ActiveIEEE 802.3AT POE INTERFACE WITH FLYBACK DC-DC CONTROLLER
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TPS23751PWP
ActiveIEEE 802.3AT POE INTERFACE WITH FLYBACK DC-DC CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS23751PWP |
|---|---|
| Auxiliary Sense | True |
| Current - Supply | 1.8 mA |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-PowerTSSOP |
| Package / Case | 0.173 in, 4.4 mm Width |
| Power - Max [Max] | 25.5 W |
| Standards | 802.3at (PoE+), 802.3af (PoE) |
| Supplier Device Package | 16-HTSSOP |
| Type | Controller (PD), DC/DC |
| Voltage - Supply [Max] | 57 V |
| Voltage - Supply [Min] | 0 V |
TPS23751 Series
IEEE 802.3at PoE interface with flyback DC-DC controller
| Part | Auxiliary Sense | Number of Channels | Mounting Type | Supplier Device Package | Voltage - Supply [Min] | Voltage - Supply [Max] | Type | Operating Temperature [Max] | Operating Temperature [Min] | Internal Switch(s) | Current - Supply | Power - Max [Max] | Standards | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 1 | Surface Mount | 16-HTSSOP | 0 V | 57 V | Controller (PD) DC/DC | 85 °C | -40 °C | 1.8 mA | 25.5 W | 802.3af (PoE) 802.3at (PoE+) | 16-PowerTSSOP | 0.173 in 4.4 mm Width | ||
Texas Instruments | 1 | Surface Mount | 16-HTSSOP | 0 V | 57 V | Controller (PD) DC/DC | 85 °C | -40 °C | 1.8 mA | 25.5 W | 802.3af (PoE) 802.3at (PoE+) | 16-PowerTSSOP | 0.173 in 4.4 mm Width |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 2.46 | |
| 10 | $ 2.21 | |||
| 90 | $ 1.81 | |||
| 270 | $ 1.72 | |||
| 540 | $ 1.64 | |||
| Texas Instruments | TUBE | 1 | $ 2.64 | |
| 100 | $ 2.32 | |||
| 250 | $ 1.62 | |||
| 1000 | $ 1.31 | |||
Description
General part information
TPS23751 Series
The TPS23751 is a 16-pin integrated circuit that combines a Power-over-Ethernet (PoE) powered device (PD) interface and a current-mode DC-DC controller optimized specifically for applications requiring high efficiency over a wide load range.
The PoE interface implements type-2 hardware classification per IEEE 802.3at. It also includes an auxiliary power detect (APD) input and a disable function (DEN). A 0.5-Ω, 100-V pass MOSFET minimizes heat dissipation and maximizes power utilization.
The DC-DC controller features internal soft-start, a bootstrap startup current source, current-mode control with slope compensation, blanking, and current limiting. Efficiency is enhanced at light loads by disabling synchronous rectification and entering variable frequency operation (VFO).
Documents
Technical documentation and resources