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ULN2003A: Minimum conduction voltage range

Zhihong Huang
Intellectual 1550 points
Part Number: ULN2003A


Hi team,

My client uses MCU to control one of the inputs of ULN2003A.

  1. When the MCU is powered on, a pulse with amplitude range of 0.6 ~ 0.9V and duration of 600ms will appear in the control port.
  2. My customer is worried that this pulse will lead to the wrong conduction of ULN2003A, so now we need to know the minimum conduction voltage range of ULN2003 in the range of - 40 ° C ~ 125 ° C, so that he can evaluate the system and make a judgment?.

Could you please provide this information？

Best Regards

Wesley Huang

wesley-huang@ti.com

  • 0
    TI__Mastermind 32650 points

    Hi Wesley,

    It depends on the loading on the output pins of the ULN2003A. The datasheet specs the on state input voltage but this is at a specific load current and V_ce.

    What is the loading condition in your customer's case? 

    Moving this support to email. Closing E2E thread.