TPS7B7701-Q1:About SENSE in TPS7B7701QPWPRQ1

Shota Takasaki

Prodigy 30 points

Part Number: TPS7B7701-Q1

こんにちは

TPS7B7701QPWPRQ1 SENSEに対する私の認識が正しいことを確認したいと思います。

短絡状態を検出するとSENSE出力電圧が2.4~2.56Vの間でプルアップされるため、

短絡状態時のSENSE出力電圧は標準で2.55Vです。

しかし、短絡状態になる前のSENSE出力電圧は、出力電流Ioutによって決まりますか?

5 months ago

0 Shota Takasaki 5 months ago

Prodigy 30 points

Hi,

I would like to make sure that my perception of TPS7B7701QPWPRQ1 SENSE is correct.

Since the SENSE output voltage is pulled up between 2.4~2.56V when a short-circuit condition is detected,

the SENSE output voltage during the short-circuit condition is typically 2.55V,

but the SENSE output voltage before the short-circuit condition is determined by the output current Iout?

+1 Nick Butts 5 months ago in reply to Shota Takasaki

TI__Mastermind 41055 points

Hi Takasaki-san,

You are correct. When there is no short-circuit or current limit condition, the SENSE output voltage depends on the load current in the respective channel and the size of the RSENSE resistor. When the channel reaches current limit, the SENSE voltage latches to 2.55V (typical) until the current limit condition is removed.

Regards,

Nick

0 Shota Takasaki 5 months ago in reply to Nick Butts

Prodigy 30 points

Hi Nick-san,

Thanks for the answers.

This solved the problem.

I will contact you if there is anything else.

Takasaki

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TPS7B7701-Q1:About SENSE in TPS7B7701QPWPRQ1