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Old Nov 04, 2004, 02:24 AM
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DIY IR Rx PCB's

After posting in another thread just recently, I had a number of phone calls. One was from a kind gentleman who offered to make some DIY IR pcb's. This is what we have so far. Picture is of 12mm x 12mm IR Rx pcb, gold plated. These boards are not home made.

Dave
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Old Nov 04, 2004, 02:28 AM
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126 Rx pcb's to a sheet
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Old Nov 04, 2004, 02:38 AM
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pcb

are these are for the lt charge pump . how are you going to price them?
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Old Nov 04, 2004, 02:46 AM
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Boards are for the LTC charge pump. Texas Instruments have a pin for pin substitute available as free sample, it is suitable though it has a lower current rating. Price will be cheap, this is non profit, should be able to let you know exaclty how much tomorrow.

Dave
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Old Nov 04, 2004, 03:15 AM
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Nice boards.
Stewart mentioned something about the TI charge pumps new data sheets specify a higher current rating than what Digikey specifys. Wonder if Digikey's
stock is up to specs with the new specs. All you need is 50ma for the coils and 10ma or so to be safe for the fet, pic and sensor. I forget the exact current consumption but remembered that 60ma would cover it. I think that is what the new data sheet specifys. I'm bad for posting without looking stuff up so I will go look it up now.

Billy
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Old Nov 04, 2004, 03:47 AM
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PIC12c5xx < 2ma at 5VDC 4MHZ
12c5xx uses more curent than 12f6xx

Panasonic sensors are 3ma max 2.4ma typical

I dont see the current consumption for the IRLM2502 but suspect its in uA

Digikey's lists the 60ma versions REG71055DDCT but has no in stock information.
They do have the 30ma REG710s in stock those would be fine I think for throttle rudder planes. TI does have samples available for the 60ma REG710s.
I ordered some will test them out when they get here.

Dont you hate that burnt flux taste you get in the back of your throat.

Billy
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Old Nov 04, 2004, 04:05 AM
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Nice boards
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Old Nov 04, 2004, 04:10 AM
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Thanks Billy,

I have some TI samples here. Packet says REG710NA-5/250. 5v 30mA
I have tested this component with the 3ch IR without problems.

PS Tx and Tx module pcb's coming soon.

Other components for IR also available.

Dave
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Old Nov 04, 2004, 04:24 AM
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Billy,
The TI chargepump is , REG71050NA --- sot23-6 package .
the REG71055DDCT is a 5.5 volt version!
Nominal continuous current is 30mA , short cct current listed as 100mA but a later fact sheet than the data sheet says they lifted the short cct cut out to 125mA.
Stewart
Edited-added part No & voltage chart. Note its only the 5Volt versions we are interested in .
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Old Nov 04, 2004, 05:09 AM
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Stewart
Thanks
Didnt realize there was a 5.5 V version.
Thought the ones listed for 60ma at Digikey were the 50s can be confusing with all the part numbers.

Dave
Glad to know the REG710NA-5/250 work. Now we are not stuck ordering samples.



Billy
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Old Nov 04, 2004, 07:27 AM
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Billy,

Which Panasonic sensor are you refering to? Digikey lists one the works on 3V.

Thanks,

Dave
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Old Nov 04, 2004, 05:12 PM
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Dave W.
PNA4611M Series.

Billy
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