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TPS92630-Q1 / 2 string output

Ryuji
Guru 20090 points
Other Parts Discussed in Thread: TPS92630-Q1
Hello,
 
Our customer would like to use TPS92630-Q1 as two strings 120mA/ch.
Thus, we connect the IOUT3 to VSNS1.
As a result, IOUT1 is 240mA and IOUT2 is 120mA.

Could you please let me know the correct connection for two strings operation by 120mA/ch?

Best Regards,
Ryuji Asaka
  • 0
    TI__Expert 5380 points

    Ryuji-san,

    I am not sure about you schematic, it seems a little strange to connect IOUT3 to VSNS1. 

    Usually if we only want to use the two channels of the TPS92630 (say IOUT1 & IOUT2), it is recommended to put the PWM3 into a low level, connect the IOUT3 ,VSNS3 and GND together. You can do this easily on our EVM. 

    Best regards

    Anda zhang

    Automotive support team

  • 0 in reply to Anda Zhang
    Guru 20090 points
    Hello Anda san,

    Thank you for the prompt reply.
    Accorcding to terminal functions in the datasheet p.4,  IOUT3 is connect to VSNS1 when not used.
    Is this comment wrong ?

     
    Best Regards,
    Ryuji Asaka
  • 0 in reply to Ryuji
    TI__Expert 5380 points

    Ryuji-san, 

    This is a typo which has been corrected and the datasheet should be updated recently. Usually Iout1 corresponds to  VSNS1, IOUT2 corresponds to VSNS2, IOUT3 corresponds to VSNS3. 

    Best regards

    Anda