Which is pin 1 of the LTC3108 SSOP package??

[marianodanilo]

Hello there, I bought the ssop package of LTC3108,,but the datasheet didn't specify which is pin 1..can anybody here tell me which is which...posting pictures will be help more...thank you

 

[alexan_e]

Scroll at the end of the datasheet



One side is cut diagonally , that is the pin 1 side

 

[vamsee]

Hello there, I bought the ssop package of LTC3108,,but the datasheet didn't specify which is pin 1..can anybody here tell me which is which...posting pictures will be help more...thank you

Pin 1 is VAUX. The VAUX pin powers the buffers to the JTAG pins (TCK, TMS, TDI, and TDO)

 

[marianodanilo]

on the datasheet I downloaded,,there isn't note for locating pin 1

 

[alexan_e]

But that image you have attached shows it (unless it is my image).

When the chip is with the diagonal cut at the lowed side like in the upper right image of your attachment then pin 1 is in the lower left content.

The diagonal cut can be seen if you hold the chip like the lower left side image in your attachment.

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Actually I didn't find it in the first datasheet either so I have downloaded one from a different company.

Here www.linear.com/docs/28823