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.

TIOL112: Reverse polarity protection, difference between TIOL111 and TIOL112

Genius 15690 points
Part Number: TIOL112
Other Parts Discussed in Thread: TIOL111,

Hello,

 

I want to confirm if there is any difference in reverse polarity function between TIOL111 and TIOL112.

 

While the TIOL111 datasheet says “Reverse Polarity Protection of up to 60 V on L+,CQ and L-“ on the 1st page,

the TIOL112 datasheet says that “Active reverse polarity protection of up to 65 V on L+, CQ and L-“ on the same page.

 

The word of “Active” is added to TIOL112. What does it mean? Is there any difference except for the tolerant voltage?

 

Regards,

Oba

  • Hello Oba-san,

    Yes there is a difference between the TIOL111 and TIOL112 reverse polarity protection.  The TIOL111 has dedicated protection diodes in series with the driver stack transistors.  This results in an additional voltage drop across the diode and therefore a higher residual voltage and power dissipation as compared to the TIOL112.

    The TIOL112 uses an "active" polarity protection circuit that can be bypassed during normal operation to reduce the residual voltage and power dissipation as compared to the TIOL111.  When the device detects a reverse polarity condition, it will engage a protection diode to protect the device.

    Regards,

    Jonathan

  • Hello Joanathan,

    Thanks for your support.

    Regards,
    Oba