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Description
ON SEMICONDUCTOR UC3843BD1G Current Mode Controller, 25V-12V supply, 500 kHz, 13.4V/200mA out, SOIC-8The UC3843BD1G is a high performance fixed frequency Current Mode Controller specifically designed for OFF line and DC DC converter applications. This integrated circuit features a trimmed oscillator for precise duty cycle control, a temperature compensated reference and high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also includes protective features consisting of
The UC3843BD1G is a high performance fixed frequency Current Mode Controller specifically designed for OFF-line and DC-DC converter applications. This integrated circuit features a trimmed oscillator for precise duty cycle control, a temperature compensated reference and high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also includes protective features consisting of input and reference under-voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output dead-time and a latch for single pulse metering.
- Trimmed oscillator for precise frequency control
- Automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with under-voltage lockout
- High current totem pole output
- Under-voltage lockout with hysteresis
- Low start-up and operating current
Applications
Industrial, Signal Processing
Product details
| Controller IC Case Style | SOIC |
| Operating Temperature Min | 0°C |
| Output Current | 200mA |
| Operating Temperature Max | 70°C |
| No. of Pins | 8Pins |
| Frequency | 500kHz |
| Output Voltage | 13.4V |
| Input Voltage | - |
| Product Range | - |
| Automotive Qualification Standard | - |
| Supply Voltage Min | 12V |
| Packaging | Each |
| Supply Voltage Max | 25V |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | ON SEMICONDUCTOR |
| Part Number | UC3843BD1G |
| Quantity | Each |
| Technical Data Sheet EN | |
| Product Change Notice EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Good Wallet, Plenty of Storage Slots
I needed a new wallet to replace my old one that was a tri-fold one that was cloth and it was getting some wear holes in it. I really like this wallet but it has one feature I don't care for. The wallet is good size, has plenty of card holding capacity, RFID blocking, soft leather and it's window is large enough to hold two picture ID's, which I have not to mention the price is pretty good. The only feature I don't care for is the two pocket billfold section. I find it restricts how far it opens up which then makes it hard to see the money you're carrying. I would have been better to not have this so it would open farther and just put two horizontal fabric pockets on the front side of the bill section to hold some business cards.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Best Wallet So Far
It took me years of my wife telling me to get a new wallet (my old one was GREAT but very old, worn and dirty but like an old friend... hard to get ride of). I needed something that would hold A LOT OF CARDS. After much searching on Amazon and reading reviews, I selected this one as I likes the style.
Right off the bat I liked it. It held almost all my cards (I discarded 2 or 3 that were old and expired) and am amazed at how thin it is (especially compared to my old wallet) and comfortable in my back pants pocket. I especially like the bi-fold feature that organizes my cards so when I need one, I know exactly where it is. Looks well made and hopefully will last many years.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great Quality Men's Wallet
Color: 172-Brown-no zipper, Color: 172-Brown-no zipper
Great packaging. The wallet is very nice quality, soft feel yet strong. There are adequate inserts and pockets to hold cards, cash and even a picture. Gifting this to my husband for father's day.
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Reviewed in the United States on May 18, 2026
★★★★★ 4
Great but too thick for me...
Color: 172-Brown-no zipper
It is my fault for not understanding how thick this wallet is. Great wallet, lots of space and looks great. It is just a bit big for my back pocket in jeans.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
A great wallet with a whole lot of room for card🤘
Color: 172-Black
It definitely holds a lot of cards as an OTR truck driver I have a lot of different reward cards different payment cards different ID cards it holds all the cards very well for the price it's a little thick but that's thanks to how many cards I have if I didn't have so many cards it wouldn't be so thick it's very easily organized to have conveniently located cards that you use the most at the front. Beautiful black leather and it definitely can take a beating and hold the cards snugly
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Reviewed in the United States on April 15, 2026