TPS92200: 3x TPS92200 to Drive RGB LED with Common Anode

OK, when looking at the data sheet of the TPS92205x series, there it explicitly mentions "common anode connection".

Do I assume correctly that a common anode is thus not possible with the TPS92200 variant?

Thanks again
Andreas

Hi Andreas, 

You are right. TPS92200 is not a suitable choice if you need separately controlled 3 RBG LEDs with common anode connection. 

Could you please share your end-equipment application, the current range of each LED and the brightness control methods you prefer? I could recommend most suitable device(s) to you. 

Thank you! 

Best, 

John. 

Hello John,

thanks a lot for your quick reply, even on a weekend - much appreciated!

We would like to control different kinds of LEDs, mainly TW (2x IC), RGB (3x IC) and RGBW (4x IC), with common anode connection each.

Current per LED channel is only 350 mA or 500 mA. Hence the reason we were first looking at the TPS92200 variant as the TPS92205x series with > 2 A max. current seems oversized for our application.

The brightness control method from the MCU towards the driver IC should be digital (PWM). The control method from the IC towards the LED could be digital (PWM), analog or a combination of both.

Best regards and thanks again for your support
Andreas

Hi Andreas, 

Thank you for your reply! 

Could you please also provide the input voltage range of each channel? And does it has a requirement about efficiency? 

And could you please leave your email, so I could loop application engineers covering other potential devices and marketing guys? We can help you pick the right device based on your application details and project schedule. 

Thank you！ 

Best, 

John.

Hello John,

sure, voltage range of the LED types mentioned above is 18-24 V. If for the future use of other LED types also up to 48 V could be supported that would be great, but not a hard requirement.

You can send an e-mail to:
info@ab-smarthouse.com

Best regards and thanks again
Andreas

Hi Andreas, 

I have sent you a email. We could continue our conversation via that. Please check if you have received that. 

Thank you! 

Best, 

John. 

Yes, thanks for your support, John!