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ULN2003A: Can you provide figure of "Maximum Collector Current vs Duty Cycle" for PW package?

Yasushi Fujiwara
Genius 12725 points
Part Number: ULN2003A

Hello experts,

My customer want to get a figure of "Maximum Collector Current vs Duty Cycle" for PW package. (like figure 4&5 in datasheet.) Would you provide it?

Best Regards,
Fujiwara

  • 0
    TI__Genius 10855 points

    Hi Fujiwara-san,

    Unfortunately we don't have the Maximum Collector Current vs Duty Cycle graphs for the PW package. However, you can calculate the thermal performance of the ULN2003APW by using the following steps:

    1:  l:   Pd = Ice ^2 * Rds   (Per Channel)

    2: Add the power dissipations together from all active channels

    3: Multiply Pd * ThetaJA + Tambient to find the junction temperature of the device.

    If the value exceeds the 125C, then the device cannot support the load current you are supplying.

    If you can provide me with the operating conditions, I can also run these calculations for you to determine if the configuration will work.

    Thanks,

    Arthur Huang

    To find the latest information on Power Switches, visit www.ti.com/powerswitch