SLUU297B December   2007  – January 2022 TPS40195

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
    1. 2.1 Applications
    2. 2.2 Features
  4. 3 TPS40195EVM Electrical Performance Specifications
  5. 4 Schematic
    1. 4.1 Test Points
  6. 5 Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source
      2. 5.1.2 Meters
      3. 5.1.3 Loads
      4. 5.1.4 Oscilloscope
      5. 5.1.5 Signal Generator
      6. 5.1.6 Recommended Wire Gauge
      7. 5.1.7 Other
    2. 5.2 Equipment Setup
  7. 6 Test Procedure
    1. 6.1 Line and Load Regulation
    2. 6.2 Output Ripple Measurement (TP5, TP13)
    3. 6.3 Loop Analysis (TP7, TP8, TP10)
    4. 6.4 Disable (TP11) and Power Good (TP9)
    5. 6.5 Switch Node (TP4) and SYNC (TP12)
    6. 6.6 Equipment Shutdown
  8. 7 TPS40195EVM Typical Performance Data and Characteristic Curves
    1. 7.1 Line and Load Regulation
    2. 7.2 Efficiency
    3. 7.3 Output Voltage Ripple
    4. 7.4 Transient Response
    5. 7.5 Bode Plots
    6. 7.6 Test Point Waveforms
  9. 8 EVM Assembly Drawings and Layout
  10. 9 List of Materials
  11. 10Revision History

3 TPS40195EVM Electrical Performance Specifications

Table 3-1 TPS40195EVM Electrical and Performance Specifications
PARAMETERCONDITIONSMINNOMMAXUNITS
INPUT CHARACTERSTICS
VINInput voltage81220V
IINInput currentVIN = 8 V, IOUT = 20 A—9A
No load input currentVIN = 12 V, IOUT = 0 A—60mA
VIN_ONInput turn-on voltageIOUT = 0 A to 20 A6.37.28V
VIN_HYSInput hysteresisIOUT = 0 A to 20 A1.12
OUTPUT CHARACTERSTICS
VOUTOutput voltageVIN = 12 V, IOUT = 20 A3.233.33.36V
Line regulationVIN = 8 to 20 V, IOUT = 20 A——0.5%
Load regulationVIN = 12 V, IOUT = 0 to 20 A——0.5%
VOUTppOutput voltage rippleVIN = 12 V, IOUT = 20 A——50mVpp
IOUTOutput currentVIN = 8 V to 20 V02020A
IOCPOutput overcurrent inception pointVIN = 12 V20.5——
TRANSIENT RESPONSE
ΔILoad step20 A to 4 A to 20 A—16—A
Load slew rate—1—A/μsec
Over shoot—300—mV
Settling time—20—μs
SYSTEMS CHARACTERSTICS
FSWSwitching frequency240300360kHz
ηpkPeak efficiencyVIN = 12 V, IOUT = 0 to 20 A—95%—
ηFull load efficiencyVIN = 12 V, IOUT = 20 A—92%—
TopOperating temperature rangeVIN = 8 to 20 V, IOUT = 0 to 20 A, with fan—25—°C