[Sold] 4. Batch "TA" Bistro/Bistro HD OTSM/Narsil drivers, 46mm for Q8 1S or 2S, Clicky or E-switch, SIR404

if you request drivers try to do it in this form

100 SIR FETs ordered to lower the price by 0.5$ compared to last batch

some examples from last batch prices reduced this batch
(1) 17mm 1S NarsilM PO=(L)
13$

(1) 17mm 1S Narsil v1.4 short spr. 60°C 45s PO=(L)
14.8$

(1) 22mm 1S Bistro HD long springs soldered
12.3$ and 2.5$ extra shipping

(1) 22mm 2S TA Bistro Z mod LVP=6V
13$ without LVP
14.5$ calibration of LVP needed

(1) 17mm 1S Bistro HD OTSM long springs, SD=2.8V
standard light with lighted tailcap and perfect timing
13.8$

(1) 30mm 2S NarsilM LDO 65°C, SD=6V, PO=(NO), lighted sideswitch 2.2k
Convoy L6, Thorfire S70
16.7$

(1) 38.5mm Narsil v1.4 60°C 60s, no LVP, PO=(T)
Cuoroi D01 1S/3P
17.35$
20.05$ 2S LDO piggyback LDO

(1) 46mm Q8 NarsilM no calibration, PO=(2B), SD=2.8V, 16AMC
17.35$

Narsil startup options
moon (M)
Turbo (T) useful with forward tail switch
2 blinks (2B)
no output (NO) useful with lighted sideswitch

SD=2.8V per cell shut down voltage, ramp down 0.2V above this level for Narsil

Excel sheet is almost every day actualized if nessesary

Can SIR800 be used in TC?
Did you consider building this one?

I’m interested in one 38.5mm driver for Courui D01 if other(s) will order a couple to make the three total needed. I don’t need three drivers myself, and I don’t want to pay the extra to be the only one ordering one. Let me know if it works out.

I’m still having trouble understanding how all the options stack up. Once again, I’ll take a stab at it here. Please tell me if this is correct or not!

(1) 38.5mm NarsilM 60°C SD=2.8V PO=(2B)

NarsilM ……. $15.00
38.5mm …… + $2.85
Shipping …… $2.00+
Total ………… $19.85

this is correct if you want LVP and Thermal calibration
the price examples are without shipping as there are multiple options for shipping

What is a TC?

OK. Thanks. I hope 2x more 38.5mm drivers get ordered by somebody. :innocent:

I am interested in 1 17mm OTSM 2S zener mod driver, short spring, running Bistro. Also 2 X 1S 17mm OTSM with only the single channel 7135 and FET, running Bistro, short spring as well with moonlight set to 1 and mode 22 and 23 with a low mode setting of 2 and highest mode PWM set at 220 for low Vf leds. PM me if I need to try and explain this better.

PM me with a price, please???

Thanks Matt

Texas Commander

Can this driver handle 4 xhp70.2 with 2s2p input?

for 4 XHP70.2 I would use a SIR404 FET it can handle 36.6A at 70°C ambient temperature

Bistro OTSM needs a LDO this in 17mm size adds 3$ just material cost as it is very expensive

for Modegroups can you send me the changed code, just be aware that if you use only 2 channels there are old Bistro Modegroups used
for low Vf LEDs maybe potting the AMC bank is the better solution

the TC looks good if you move the FET to the LEDs MCPCB to cool it or you have to be below 10W of LED power to keep the FET cool enough

I got no experience with Texas Commander driver so building and testing it for just one driver makes not much sense
I can order the parts and reflow it

I will get them together. I am not concerned about the 7135s, I am concerned about setting a current limit on the high end. Quad 219c’s will draw like crazy and I refuse to build down with little wire and no bypasses to restrict current to an uncontrolled amount. I understand otsm is higher, but it works! The modes do not go to hell with heat!

to control the Nichia 219s its probably better go with a full bank of AMCs plus FET and reduce the FET to like 150

for a pocket rocket you may want to add a thermal path from shelf to the MCU to get the temp protection be less delayed

You can keep it below 10W for regulated modes and higher than that just PWM the FET. Overall it should be slightly more efficient than 7135s at low-medium modes. Also, some like the fact that there’s a broad range of modes (going down to quite low) that are PWM-free.
I thought this could make it interesting for some users….though actually I didn’t say that I want to buy it, so the number of requests is 0 so far. :wink:

I can build you one, but 3 or more would be better to reduce the costs

just ordering small amounts of parts and 3 boards does increase the material costs
testing and troubleshooting this driver is also new to me

I’m in the waiting mode. I’m wating for upocoming hosts and for a LED seller to get a new batch. After that I may (or may not) wait a little longer for GXB17, depending on what comes around. I’m not looking to buy TC (though it may change), but I thought others could. In general more niches covered = more buyers

including GXB17 driver in next batch makes more sense than TC

You’re probably right

Put me down for a 21mm with an ATTiny85. I’ll add details as I figure them out, but I want to get on the list for the time being.

Lexel, so far I have one of the 17’s from batch 3 installed. Love it!!!

I want a couple more… a 30mm, maybe 2 and maybe something else to be determined. I hope it is okay to get back to you exactly what by next week as I am traveling / busy. If that does notwork, I understand.