TPS23754PWP-1 Power Over Ethernet Controller 1 Channel 802.3at (PoE+)802.3af (PoE)
Category:
Integrated Circuits ICs
Price:
Email us for details
Payment Method:
Paypal,TT,Western Union
Specifications
Date Code:
Newest Code
Shipping By:
DHL/UPS/Fedex
Condition:
New*Original
Warranty:
365days
Lead Free:
Rohs Compliant
Lead Times:
Immediately Shipment
Package:
HTSSOP-20
Mounting Style:
SMD/SMT
Highlight:
TPS23754PWP-1
,Power Over Ethernet Controller IC
,TPS23754PWP-1 POE Controller IC
Introduction
TPS23754PWP-1 Power Over Ethernet Controller 1 Channel 802.3at (PoE+)802.3af (PoE)
| Texas Instruments | |
| Product Category: | Power Switch ICs - POE / LAN |
| RoHS: | Details |
| Powered Device - PD | |
| 802.3at | |
| 850 mA | |
| 750 mOhms | |
| 0 V to 57 V | |
| - 40 C | |
| + 125 C | |
| SMD/SMT | |
| HTSSOP-20 | |
| Tube | |
| Brand: | Texas Instruments |
| Duty Cycle - Max: | 78 % |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 820 uA |
| Product Type: | Power Switch ICs - POE / LAN |
| Series: | TPS23754-1 |
| Subcategory: | Switch ICs |
| Unit Weight: | 0.002822 oz |
Description
The TPS23754 and TPS23756 devices have a combined power-over-ethernet (PoE), .powered-device (PD)
interface, and current-mode DC-DC controller optimized specifically for isolated converters. The PoE
interface supports the IEEE 802.3at standard.
The TPS23754 and TPS23756 support a number of input voltage ORing options including highest voltage,
external adapter preference, and PoE preference.
These features allow the designer to determine which power source will carry the load under all conditions.
The PoE interface features the new extended hardware classification necessary for compatibility with
high-power midspan power sourcing equipment(PSE) per IEEE 802.3at. The detection signature pin
can also be used to force power from the PoE source off. Classification can be programmed to any of the
defined types with a single resistor.
The DC-DC controller features two complementary gate drivers with programmable dead time. This
simplifies the design of active-clamp forward converters or optimized gate drive for highly-efficient
flyback topologies. The second gate driver may be disabled if desired for single MOSFET topologies.
The controller also features internal soft start, bootstrap start-up source, current-mode compensation, and
a 78% maximum duty cycle. A programmable and synchronizable oscillator allows design optimization for
efficiency and eases use of the controller to upgrade existing power supply designs. Accurate programmable
blanking, with a default period, simplifies the usual current-sense filter design trade-offs.
The TPS23754 device has a 15-V converter start-up while the TPS23756 device has a 9-V converter start-
up. The TPS23754-1 replaces the PPD pin with a no-connect for increased pin spacing.
Features
●Powers up to 30-W (Input) PDs
●DC-DC Control Optimized for Isolated Converters
●Supports High-Efficiency Topologies
●Complete PoE Interface
●Enhanced Classification per IEEE 802.3at With Status Flag
●Adapter ORing Support
●Programmable Frequency With Synchronization
●Robust 100-V, 0.5-Q Hotswap MOSFET
●- 40°C to 125°C Junction Temperature Range
●Industry Standard PowerPADTM HTSSOP-20
Applications
●IEEE 802.3at Compliant Devices
●Video and VolP Telephones
●RFID Readers
●Multiband Access Points
●Security Cameras
Send RFQ
Stock:
MOQ:
1pcs
