LP5030: Laser diode driver selection

Shuhei Goto

Expert 5500 points

Part Number: LP5030

Tool/software:

Hi team,

I look for the laser driver IC cover the requirements below.
Could you support please?

Drive laser diode with constant current
Adjustable drive current around 30mA
Modulate the drive current at 1 GHz

Best regards,
Goto

9 months ago

0 Jared Zhou 9 months ago

TI__Mastermind 20515 points

Hi Goto,

Does your requirement3 mean that the PWM dimming frequency can up to 1 GHz?

BR, Jared

0 Shuhei Goto 9 months ago in reply to Jared Zhou

TI__Expert 5500 points

Hi Jared,

Thank you for reply.

Yes! Do you have any recommendation device?

Best regards,
Goto

+1 Jared Zhou 9 months ago in reply to Shuhei Goto

TI__Mastermind 20515 points

Hi Goto,

I am sorry that we don't have such LED driver which can support PWM frequency up to 1GHz.

Can you please tell me why customer has this requirement?

BR, Jared

0 Shuhei Goto 9 months ago in reply to Jared Zhou

TI__Expert 5500 points

Hi Jared,

Thank you for supporting.
The background is not revealed. Sorry I couldn't help you.

BTW, do you have any device the meet two requirement below?

Shuhei Goto said:
Drive laser diode with constant current

Adjustable drive current around 30mA

Best regards,
Goto

0 Shuhei Goto 9 months ago in reply to Shuhei Goto

TI__Expert 5500 points

Hi Jared,

Do you have any device meet above?

Best regards,
Goto

0 Steven Li 9 months ago in reply to Shuhei Goto

TI__Mastermind 23450 points

Hi Shuhei,

Jared is currently out of office. He will reply to you next week when back to office. Thanks for your understanding.

Best Regards,

Steven

+1 Jared Zhou 9 months ago in reply to Shuhei Goto

TI__Mastermind 20515 points

Hi Goto,

Sorry for late reply since I am OoO before.

I am sorry only based on 1GHZ PWM requirement, I think we don't have such LED driver can meet this.

BR, Jared

0 Shuhei Goto 9 months ago in reply to Jared Zhou

TI__Expert 5500 points

Hi Jared,

Since 1GHz PWM is not required, are there any devices that meet the following requirements?

Shuhei Goto said:
Drive laser diode with constant current

Adjustable drive current around 30mA

Best regards,
Goto

0 Jared Zhou 9 months ago in reply to Shuhei Goto

TI__Mastermind 20515 points

Hi Goto,

Do you have any other requirements from customer, like

1. channel number?

2. input/output voltage range?

3. LED connection in parallel or in serial, it will be better if you have a block diagram.

BR, Jared

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LP5030: Laser diode driver selection