THS6132: VCCL and VCCH

[FAE] Andrew Wang

Genius 10685 points

Part Number: THS6132

Hi Team,

One quick question, why this device has VCCH and VCCL 2 supply pin, why we have 2 separate supply pin?

Thanks!

Andrew

over 7 years ago

0 kai klaas69 over 7 years ago

Guru 140200 points

Hi Andrew,

paralleling of bond wires helps to reduce inductance and resistance.

Kai

0 [FAE] Andrew Wang over 7 years ago in reply to kai klaas69

TI__Genius 10685 points

Hi Kai,

Sorry, I misleading my question.
My question was why we have VCC(H) and VCC(L) two separate supply.
I don't see any function block in datasheet so I cannot understand why need two supply.
Thanks.
Andrew

0 kai klaas69 over 7 years ago in reply to [FAE] Andrew Wang

Guru 140200 points

Hi Andrew,

I guess this has to do with the Class-G amplifier topology of THS6132. Class-G uses two power supplies rather than just a single supply. The device operates from the lower supply until output headroom becomes an issue. At this point the device switches the output stage to the higher supply rail. This gives a very efficient design as additional power is only used when required.

Kai

0 [FAE] Andrew Wang over 7 years ago in reply to kai klaas69

TI__Genius 10685 points

Cool, Thanks a lot!!

Amplifiers

Amplifiers forum

THS6132: VCCL and VCCH