Looking for LMP8645 TINA spice model

Peace

Other Parts Discussed in Thread: LMP8645, TINA-TI, LMP8646

Hello,

I want to simulate LMP8645 (current sensing amplifier) using TI Tina. In the datasheet it states that SNOM087 is the Tina spice model, but I cannot find the model from Tina. Can you please let me know which model I should use? Also, I am using the free version and would like to find out if the spice model can be imported.

Thanks,

over 7 years ago

0 Britt Brooks - Online Design Tools over 7 years ago

TI__Mastermind 41310 points

rainbow,

The PSpice model for the LM8645 is available in the product folder under the Tools and Software tab. Simply download the .zip file to your computer and extract the file. The file has a .mod extension, so I would rename it to LM8645.lib and then use the TINA-TI New Macro Wizard to import the file. There is a video on how to use the New Macro Wizard in the following training series:

Video 1.9 should show you how to import the file. I would use the LMP8646 symbol or you can create your own using the Auto generate shape option. The model should import without any issues.

0 Peace over 7 years ago in reply to Britt Brooks - Online Design Tools

Intellectual 420 points

Hi Britt,

Thanks for your help. But, somehow the output voltage is not amplified by the gain resistor. I've attached the schematic that I created to this message and hope that you can see it. Could you please let me know what I did incorrectly in the circuit? My intention for VG1 in the schematic is to make the voltage source to be PWM, but I am not sure if I did correctly.

LMP8645.TSC

Thanks!