DRV8231: 5V to 15V conversion with 50mA load

Ramakrishna Challa2

Part Number: DRV8231
Other Parts Discussed in Thread: DRV8251, DRV8220

Hello,

I am searching for a device to satisfy my requirement.

input voltage 5 V Logic level upto 10 kHz
output is 15V , 50 mA
if input voltage is logic 0 ( <1V) then output voltage is >12V ( 15V supply)
if input voltage is logic 1 ( >3.5V) then output voltage is <1V ( 15V supply)

minimum 2 channels ( non-inverting is preferrable) some time will use single channel also
if any protection is also preferable (not a requirement)
Package SMD ( Automotive preferable)
operating temperature -40 to 125
This product will have a 10 years life time.
I have searched below devices CD4504BM, DRV8231, DRV8251

Can you provide info can I use half bridge in full bridge devices like DRV8231 or DRV8251 ?
if I use half bridge can I get all protections

Please suggest any devices that satisfy my requirements.

Thank you very much for your support.

Regards
Ramakrishna

7 months ago

0 Pablo Armet 7 months ago

TI__Mastermind 37683 points

Hello Ramakrishna,

I'll be supporting you with your questions. Please allow me a few hours to get back to you with a response.

Regards,

Pablo Armet

0 Jacob Thompson 7 months ago in reply to Pablo Armet

TI__Mastermind 18449 points

Hey Ramakrishna,

I can answer a couple of questions before Pablo fully gets back to us.

Ramakrishna Challa2 said:
can I use half bridge in full bridge devices like DRV8231 or DRV8251 ?

No, you will need to use a driver with Independent 1/2 Bridge Control to have this feature. Does your current only need to go 1 direction? Here's the devices with that control feature: Link The DRV8220 looks like a good fit at 20V / 1.76A. Overcurrent protection and Thermal Shutdown protection.

Can you explain what you mean by "non-inverting"? Looks to me like Low-Active control (LOW == output ON, HIGH == output OFF), right?

Regards,

Jacob

0 Ramakrishna Challa2 7 months ago in reply to Jacob Thompson

Prodigy 60 points

Hi Jacob,

Thanks for your replay.

I have read the DRV8220 , DSG package will suit my application.

I think I can use if device supports 1/2 bridge configuration. below link shows the all the half bridge filtered devices. is it correct?

https://www.ti.com/motor-drivers/brushed-dc-bdc-drivers/products.html#1077=Independent%201%2F2-Bridge&1192=-40%3B125&2716max=20%3B115&sort=248;asc&

"Can you explain what you mean by "non-inverting"? Looks to me like Low-Active control (LOW == output ON, HIGH == output OFF), right? " - Correct.

Thanks

Regards

Ramakrishna Challa

0 Pablo Armet 7 months ago in reply to Ramakrishna Challa2

TI__Mastermind 37683 points

Hello Ramakrishna,

Ramakrishna Challa2 said:
"Can you explain what you mean by "non-inverting"?

I believe this means that the INx and OUTx are "non-inverting". Meaning is IN1=LOW, OUT1=LOW. THis is how the 1/2 bridge independent control functions.

In half-bridge control, IN1 controls OUT1 and IN2 controls OUT2. The DRV8220 supports this configuration.

I hope this answers your question.

BR,

Pablo

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DRV8231: 5V to 15V conversion with 50mA load