TPS25810-Q1: Power supply of current source

Kuramochi Tadahiko

Guru 28715 points

Part Number: TPS25810-Q1

Hi,

Is power supply of below current source connected with IN2 pin ?

Best Regards,

Kuramochi

over 7 years ago

0 Bob Ma over 7 years ago

TI__Expert 8980 points

Hi, Kuramochi,

No, it's should be connect with IN1&IN2 pin.

Regards,
Bob

0 Kuramochi Tadahiko over 7 years ago in reply to Bob Ma

Guru 28715 points

Bob-san,

Thank you for your answer.

Does it mean that IN1&IN2 are connected internally or each current source is connected with each INx pin as below?

Best Regards,

Kuramochi

0 Bob Ma over 7 years ago in reply to Kuramochi Tadahiko

TI__Expert 8980 points

Hi, Kuramochi-San,

The power for each is IN1&IN2. I didn't check design circuit and I can't either give you design circuit. From my test, if you don't supply IN1 or IN2, CC1 with Rd can't be charge to ~1.7V(330mA*5.1k). Only supply both IN1 and IN2, can CC1 be charged to ~1.7V. So it means this current source is connected to both IN1 and IN2.

Regards,
Bob

0 Bob Ma over 7 years ago in reply to Kuramochi Tadahiko

TI__Expert 8980 points

Hi, Kuramochi-San,

Cuz no more reply from you, I will close this thread. Feel free to ask further if you still have any questions.

Regards,
Bob

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TPS25810-Q1: Power supply of current source