Texas Instruments TPS2373-4EVM-758, Руководство пользователя, Страница: 2 / 23

Introduction
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2 SLUUBJ1A – February 2017 – Revised June 2017
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TPS2373-4EVM-758 Evaluation Module
1 Introduction
The TPS2373-4EVM-758 allows reference circuitry evaluation of the TPS2373-4. It contains input and
output power connectors and an array of on-board test points for circuit evaluation.
1.1 Features
The TPS2373-4EVM-758 features include:
• High-efficiency active clamp-forward converter
• Class 8, 5-V, 14-A, 70-W, DC output
1.2 Applications
The TPS2373-4EVM-758 can be used in the following applications:
• Voice over internet protocol – IP telephones
• Wireless LAN – wireless access points
• Security – wired IP cameras
• IoT applications
2 Electrical Specifications
Table 1 lists the EVM electrical specifications.
Table 1. TPS2373-4EVM-758 Electrical and Performance Specifications at 25°C
Parameter Test Conditions Min Typ Max Unit
PD Power Interface
Input Voltage Applied to the power pins of connectors J2 or J4 0 57 V
Input UVLO, PoE input
J2 Rising input voltage 36 V
Falling input voltage 30 V
Detection Voltage At device terminals 3 10 V
Classification Voltage At device terminals 10 23 V
Classification Current RclassA = 63.4 Ω 38 42 mA
RclassB = 90.9
Ω
26.5 29.3 mA
Inrush Current-Limit 275 395 mA
Operating Current-Limit 1.9 2.5 A
DC/DC Converter (UCC2897A)
Output Voltage V
IN
= 48 V, I
LOAD
≤
I
LOAD
(max) 5.17 5.22 V
Output Current 41.2 ≤ V
IN
≤ 57 V 14 A
Output Ripple Voltage
Peak-to-Peak V
IN
= 48 V, I
LOAD
= 14 A 100 mV
Efficiency, End-to-End
V
IN
= 48 V, I
LOAD
= 1 A 73 %
V
IN
= 48 V, I
LOAD
= 6 A 92 %
V
IN
= 48 V, I
LOAD
= 14 A 91 %
Switching Frequency 200 kHz