SLVUBO2B April   2019  – December 2020 TPS23758

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Electrical Specifications
  4. 3Description
  5. 4Schematic
  6. 5General Configuration and Description
    1. 5.1 Physical Access
  7. 6TPS23758EVM-080 Performance Data
    1. 6.1 Startup to PSE and DCDC Startup
    2. 6.2 Transient Response
    3. 6.3 Efficiency
    4. 6.4 Load Regulation
    5. 6.5 Recovery from VOUT Short
    6. 6.6 Slew Rate Adjust
  8. 7EVM Assembly Drawings and Layout Guidelines
    1. 7.1 PCB Drawings
    2. 7.2 Layout Guidelines
    3. 7.3 EMI Containment
  9. 8Bill of Materials
  10. 9Revision History

2 Electrical Specifications

Table 2-1 TPS23758EVM-080 Electrical and Performance Specifications at 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER INTERFACE
Input voltage Applied to the power pins of connectors J1 37 57 V
Applied to the power pins of connectors J4 48 V
Input UVLO, POE input J1 Rising input voltage 36 V
Falling input voltage 30
Detection voltage At device terminals 2.7 10.1 V
Classification voltage At device terminals 14.5 20.5 V
Classification Current Class 0 0 4 mA
Inrush current-limit 140 mA
Operating current-limit 550 mA
DC-TO-DC CONVERTER
Output voltage VIN = 48 V, ILOAD ≤ ILOAD (max) 5 V
Output current 37 V ≤ VIN ≤ 57 V 2.3 A
Output ripple voltage peak-to-peak VIN = 48 V, ILOAD = 1 A 34 mV
Efficiency, end-to-end VIN = 48 V, ILOAD= 230 mA 61 %
VIN = 48 V, ILOAD = 1.15 A 85
VIN = 48 V, ILOAD = 2.3 A 87
Switching frequency 250 kHz