Texas Instruments Evaluation Module for TPS23756 TPS23756EVM TPS23756EVM Ficha De Dados
Códigos do produto
TPS23756EVM
Description
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1
Description
The TPS23756EVM allows reference circuitry evaluation of the TPS23756. It contains input and output
power connectors and an array of onboard test points for circuit evaluation.
power connectors and an array of onboard test points for circuit evaluation.
1.1
Features
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High-power PD and DC-DC converter controllers
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IEEE 802.3at-compliant PD controller with adapter preference support
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Converter controller supports high-efficiency, isolated converter topologies
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Wide-input voltage range DC-DC converter
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Active clamp forward converter design using self-driven synchronous rectifiers
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End-to-end efficiency at full load: 89% (12 V), 91% (24 V), 88% (48 V), 85% (PoE)
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Converter efficiency at full load: 91% (12 V), 91% (24 V), 88% (PoE or 48 V)
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5-V, 5-A output (25 W) over a 10- to 57-V input voltage range
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Operates from PoE or external adapters
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Integrated 1000base-T RJ-45 jack including transformer and cable terminations
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Operates from 12-V, 24-V, and 48-V wall adapters
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Onboard, “efficient diode” (replaces standard adapter diode) circuit when operating from 12-V
adapters
adapters
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Selection of option 1 (PD input using PPD pin) or option 2 (converter input using APD pin) adapter
input power using jumpers
input power using jumpers
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Selection of PPD1 or PPD2 mode using jumpers
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Supports option 2 adapter input with either PoE or adapter preference
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Onboard “smooth handoff” circuit for 48-V adapter using PoE as a hot backup
1.2
Applications
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Voice over Internet Protocol – IP telephones
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Wireless LAN – Wireless Access Points
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Security – Wired IP cameras
2
TPS23756EVM
SLVU329A – September 2009 – Revised March 2010
Copyright © 2009–2010, Texas Instruments Incorporated