• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 2 answers
  • Subscribers 63 subscribers
  • Views 200 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS4H160-Q1: while Simulation using pSpice model TPS4H160-Q1, found result of leakage current is not matching with datasheet

Abhilash Patil
Prodigy 30 points
Part Number: TPS4H160-Q1

while Simulation using pSpice model TPS4H160-Q1, found result of leakage current is not matching with datasheet. As per datasheet it should be 3uA but we are getting only 40pA to 50 pA. 

will you please help on this. 

Thanks,

Abhilash Patil

  • 0
    TI__Mastermind 32650 points

    Hi Abhilash,

    The model is to approximate the device behavior in typical conditions and does not account for variation over temperature and process variation.

    Please use the datasheet value for edge case design considerations and the model for general load drive checks.

    For best representation of the device, please test using the EVM.

    Thanks,

    Shreyas

  • 0 in reply to Shreyas Dmello
    Prodigy 30 points

    Hello Shreya ,

    Thanks for details. Below setup we done on actual board and model

    Please find below observation found between Pspice model and PCB board setup.

    Device PCB Board Setup observation

     PSPICE Simulation

    CH1_Voltage Source Input

    Current through IO Terminal in uA  Max.

    Voltage

    Current pA

    0.2

    -0.017

    0.27

    -25.1006

    0.4

    -0.003

    0.43

    -23.6682

    0.6

    -0.001

    0.61

    -22.059

    0.8

    -0.002

    0.97

    -18.8357

    1

    0.004

    1.5

    -14.0998

    2.5

    0.701

    2.53

    -4.86176

    4

    1.754

    4.06

    8.905039

    5.5

    2.857

    5.65

    23.10478

    7

    3.988

    7.23

    37.30452

    8.5

    5.198

    8.29

    46.77102

    10

    6.8

    10.4

    65.70401

    11.5

    9.3778

    11.45

    75.1705

    13

    12.551

    13.04

    89.37025

    14.5

    15.947

    14.62

    103.57

    16

    19.41

    16.21

    117.7697

    17.5

    22.911

    17.79

    131.9695

    19

    26.452

    19.37

    146.1692

    20.5

    30.003

    20.43

    155.6357

    21.5

    32.374

    21.49

    165.1022

    22

    33.565

    22.01

    169.8355

    22.5

    34.756

    22.45

    173.6723

    22.75

    35.35

    22.86

    177.4865

    23

    35.955

    23.19

    180.2945

    please let me know if anything needs to update in model.

    Thanks ,

    Abhilash Patil

  • 0 in reply to Abhilash Patil
    TI__Mastermind 32650 points

    Hi Abhilash,

    This seems to be a bug in the model. Please only use the model as an abstraction of the device to check its behavior as it drives a load.

    Thanks,

    Shreyas