Have you seen it? The heat sink symbol in the schematic diagram

qwqwqw2088

Have you seen it? The heat sink symbol in the schematic diagram [Copy link]

Sometimes in the circuit schematics downloaded from TI's official website, there are symbols like the following figure, annotated as HS_M1. Do you know what means? HS: Heatsink,, is a heat sink connected to GND. The purpose is to mark the heat sink at the M1 position to be grounded.

arm8686

Haven't seen yet

maychang

This heat sink obviously cannot be connected to the drain of the power tube M1. It needs to be insulated from the power MOS tube M1, right?

qwqwqw2088

maychang posted on 2019-4-15 09:12 This heat sink obviously cannot be connected to the drain of the power tube M1. It needs to be insulated from the power MOS tube M1, right?

The first post didn't mention "the purpose is to mark the heat sink at the position of M1 to be grounded."

倾心思梦

Thanks for sharing!

ddllxxrr

I haven't seen it before, I just saw it these days

alan000345

Thanks for sharing. There are indeed many such heat sinks in the schematic diagram provided by TI.

elvike

Design style, when packaging, the fixing holes of the heat sink need to be made into pins and connected in the schematic diagram. In this way, some process and assembly requirements can be seen from the principle. I guess it is more common in large companies with more detailed division of labor.