Identification of components that are presumibly engineering samples - High side switches

[AmorarStem]

Good morning,

I'm working on some new automotive designs and on the current boards i found what are , presumibly, STM components but i can't really identify them with the offerings in the online catalogs, (at least IF they are STM engineering samples)

The body is specifically PowerSSO-16 but the marking of the components i found for now present similar but very different top markings

2HTS90 D1B

1HTS20 D1

1HTS10 200U

2HTS30 D1B

1HTS50 D1

(these 5 are the ones i classified so far)

 

Can i have some help in documenting them, if they indeed are VND products

Bellow a picture of one of the components, there are all the same except the top markings (no logos or such)

 

 

[AmorarStem]

To add:
the component dimensions are specifically 5x3,8mm (5x6mm with the leads)
1/2 seems to identify if they are single or double channel (from the board i can confirm that it seems to be true)
HTS means presumibly High side Trench Switch
And the numeric value is the mΩ value

The second line i have...zero idea, the fact that it varies so much leave me clueless

[Peter BENSCH]

Welcome ​@AmorarStem, to the community!

Neither the font matches devices from STMicroelectronics, nor have I ever come across even one of the designations. I assume they are devices from another manufacturer.

By the way: you asked the same question in personal online support with the ticket number 00264972, which should be avoided if possible. As with all forums: duplicate noise does not necessarily improve the result.

Good luck!

Regards
/Peter

[Andrew Neil]

the current boards

What boards? Where did they come from?

Your own design? Commercial 3rd-party ?

 

i found what are, presumably, STM components

What makes you think that?

[AmorarStem]

What boards? Where did they come from?

Prototype boards from Continental as a product to be sold to one automotive client. The client came to me to learn more about the boards. Continental does not help in the slightest and does not share any information beyond, "It does what you want it to do."
The boards will interface with various other components, and then they will connect to the MCU.

What makes you think that (they are STM components)?

The size is the main one, the board design another. 

Each component is connected to either 1 or 2 THT pins ne one side so they are presumibly High side switches (or some kind of switches ). The connection with 1/2pins is correlated with the starting 1/2 in the marking.

The footprint itself is quite common (5 × 6 mm, 16-pin), but an epoxy package measuring 5 × 3.8 mm corresponds to the PowerSSO-16 package, and literally no manufacturer besides STM produces a switch in that size (it is usually 4.4 mm wide).

As this is an automotive board, there are not many manufacturers of this type of component

[Peter BENSCH]

I am very sorry, but I consider your claim that one can infer the manufacturer of an IC from its size or board design to be rather far-fetched. However, since this is evidently an automotive system, it can be assumed that it may indeed also contain custom components. For such devices, as a rule, only the respective end customer has the documentation; in your case, Continental. If that company cannot make any statement about it, your only chance is probably reverse engineering the schematics and drawing conclusions from that.

Good luck!
/Peter