yes comparator .
i thought pins 1 and 2 were shorted but looking closely at the board they are supposed to connect together .
have no idea why they did that .
yes comparator .
i thought pins 1 and 2 were shorted but looking closely at the board they are supposed to connect together .
have no idea why they did that .
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
One of the lines may be the month and year of manufacturing, or batch number, it's unlikely you'll find a picture with exactly the same writing, with all rows of text the same.
With all the resistors around the chip, it's indeed most likely a comparator, and they're probably using resistors as some basic voltage dividers before the chip compares voltage thresholds or something and turns on or off those transistors (sot-223 or whatever the 3 pin footprint is)
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