TINA/Spice/LMH6526: Evaluation kit/ spice model file for lmh6525/lmh65626 Four–Channel Laser Diode Driver with Dual Output

Justin Nganji Nkoh

Part Number: LMH6526
Other Parts Discussed in Thread: TINA-TI, , LMH6525

Tool/software: TINA-TI or Spice Models

Dear Sir/madam,

I am currently doing my internship at the Eindhoven University of Technology, part of my project is to design, simulate and make a pcb for SOA current driver. My choice of component is the LMH6526/LMH6525 chip. This chip has the most suitable fall/rise time and a variable duty cycle from 0 to 100. Unfortunately I cannot find the spice model file to do ensure signal integrity inorder to validate performance before manufacturing.

My question is, as an academic institution, how much does it cost for texas instrument to provide me with the spice model file and/or an evaluation board.? Thanks very much and hope to read from you.

kind regards

Justin

over 5 years ago

0 Jacob Freet over 5 years ago

TI__Expert 7875 points

Hi Justin,

I'm assigning this to the interface team who provides support for these products.

Regards,

0 Justin Nganji Nkoh over 5 years ago in reply to Jacob Freet

Prodigy 115 points

Hi Jacob,

Thanks for the reply and hope to read from the interface team soon.

kind regards
Justin

0 Ikechukwu Anyiam over 5 years ago in reply to Justin Nganji Nkoh

TI__Mastermind 35130 points

Hello,

The LMH6525/6526 belong to the AMPS-HSAMPS SBE; reassigning.

Regards,
I.K.

0 Sean Cashin over 5 years ago in reply to Justin Nganji Nkoh

TI__Genius 14066 points

Hi Justin,

Since this is more of a digital part, I'm afraid there is not enough information in the typical performance characteristics for us to confidently make an analog model. I would simply recommend hand calculation to verify DC limitations are met and following the datasheet recommendations.

Best regards,

Sean

0 Justin Nganji Nkoh over 5 years ago in reply to Sean Cashin

Prodigy 115 points

Hi Sean,
Thanks for the help, I would like to know the output impedance of the LMH6526.

0 Rohit Bhat over 5 years ago in reply to Justin Nganji Nkoh

TI__Genius 15975 points

Hi Justin,

The output impedance of the LMH6526 would be very low (< 0.5 ohms) as it is essentially source of the output FET driver. You may want to refer to Output section on page 13 of the LMH6526 datasheet for this.

Best Regards,
Rohit

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TINA/Spice/LMH6526: Evaluation kit/ spice model file for lmh6525/lmh65626 Four–Channel Laser Diode Driver with Dual Output