LM74670-Q1: gate output driver

Kanishk Agarwal

Prodigy 40 points

Part Number: LM74670-Q1
Other Parts Discussed in Thread: TINA-TI

Is the gate output driver used in LM74670-Q1 totem pole?

over 6 years ago

0 Karikalan Selvaraj over 6 years ago

TI__Genius 16305 points

Hi Kanishk Agarwal,

LM74670-Q1 gate drive has push-pull type of gate control with 67uA source current and 62uA sink current.

May we know how this will impact your circuit design?

Regards,
Kari.

0 Kanishk Agarwal over 6 years ago in reply to Karikalan Selvaraj

Prodigy 40 points

On applying a negative dc voltage as input, even with zero initial conditions, the simulation of the LM74670-q1 TINA-TI transient reference design outputs the gate-source voltage of the mosfet as 1.98V. Shouldn't it be approximately zero?

0 Karikalan Selvaraj over 6 years ago in reply to Kanishk Agarwal

TI__Genius 16305 points

Hi

Let me check the model and get back to you end of this week.

Regards,
Kari.

0 Karikalan Selvaraj over 6 years ago in reply to Karikalan Selvaraj

TI__Genius 16305 points

Hello Kanishk,

We will fix the model and get back to you in 2 or 3 weeks time.
Let us know if you require before that.

Regards,
Kari.

0 Kanishk Agarwal over 6 years ago in reply to Karikalan Selvaraj

Prodigy 40 points

Hi Kari,
I will appreciate if it could be done early. Thank you for your cooperation.

Regards,
KANISHK.

Power management

Power management forum

LM74670-Q1: gate output driver