Searching for a 8*7135 driver with temp sensor and free pin 5 or 6

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YuvalS
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Searching for a 8*7135 driver with temp sensor and free pin 5 or 6

Hi all
I want to build a headlamp using a "of the shelf" driver and burning my own FW so I am searching for a driver with these features:  


1. Internal temperature senor (for my understanding Attiny25/85)

2. Option to connect to one of the PWM pins without soldering directly to the MCU so I will still be able to program it using a clip for example star 2 in Najang 105c.


The reason for "2" is to connect 8*7135 slave board for a 2nd LED and control it using the free PWM pin.

If you know a source for a 8*7135 slave board it is also helpful.

Cheers 

YuvalS
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External temperature sensor is also possible but I don't know if there are commercial drivers using external sensor 

moderator007
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If your writing your own FW, couldn’t you replace the attiny13 with a 85 to gain the mcu internal temp. I have replaced the 13 to a 85 several times with the blf a6 17dd fet+1 driver to be able to run NarsilM. The fet+1 drivers that most of these FW’s use here was born from the 105C driver. Comfychair got the bright idea of taking a 105C driver and replacing one of the amc7135’s with a fet and that started this whole new fet+1 driver world. Im not a expert at FW’s, but I wouldn’t think there would be to much difference between the two drivers as far as writing code to make it work with the 105C.
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Maybe you could use this driver and instead of controlling the fet on the board, remove it and use the appropraite fet pad to control the slave board.
http://www.mtnelectronics.com/index.php?route=product/product&product_id...

YuvalS
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Thanks moderator007,
I had a lot of trouble finding soic8 Attiny 85 to replace the 13, where do you buy it from? 

The H17Fx is a good option although It is a bit more expensive than the 105c, I was hoping to find a budget driver Smile

e1000
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moderator007
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YuvalS wrote:

Thanks moderator007,
I had a lot of trouble finding soic8 Attiny 85 to replace the 13, where do you buy it from? 


The H17Fx is a good option although It is a bit more expensive than the 105c, I was hoping to find a budget driver Smile


http://budgetlightforum.com/node/58824
You do have to bend the legs in to fit the original pads, not hard to do at all.
I purchased mine from Arrow but I think Digikey has them also. Arrow’s free overnight shipping was a pretty sweet deal while it lasted.
https://www.arrow.com/en/products/attiny85-20su/microchip-technology
moderator007
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I think Lexel still sales the TA17 that e1000 linked above. He could probably answer any question you might have.
http://budgetlightforum.com/node/67843

YuvalS
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Thank you all, I will check the TA17

Mike C
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As mentioned above, the 85 can be made to fit 13a footprint by bending it’s legs. Here are a few images from my earlier drivers where I was using a 85 with bent legs on a smaller footprint.