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Description
ISL88739HRZ 88739HRZ 88739 QFN-32Brand New ISL88739HRZ QFN 32 Chip Description: The ISL88739 is a highly versatile combo battery charger configurable for operating as either a Hybrid Power Boost (HPB) charger or a Narrow VDC (NVDC) charger, supporting 2 , 3 or 4 cell batteries. Both configurations allow the battery to work with the adapter together to supply the system load when it exceeds the adapter capability, referred to as system Turbo mode. HPB charger configuration reverse
Brand New ISL88739HRZ QFN-32 Chip
Description:
The ISL88739 is a highly versatile combo battery charger configurable for operating as either a Hybrid Power Boost (HPB) charger or a Narrow VDC (NVDC) charger, supporting 2-, 3- or 4- cell batteries. Both configurations allow the battery to work with the adapter together to supply the system load when it exceeds the adapter capability, referred to as system Turbo mode. HPB charger configuration reverse-boosts battery energy to system bus in order to help the adapter provide the system power in Turbo mode. NVDC charger configuration quickly turns on BGATE to enable the battery to help adapter provide the system power in Turbo mode.
Features:
- Configurable as HPB charger or NVDC charger
- Compliant with Intel PROCHOT# requirements
- Adapter current monitor and battery discharging current monitor - Uses NFET for all the switches - Supports removal of battery during Battery Learn mode - Actively controlled inrush current to prevent FET damage
- SMBus programmable settings and high accuracy
- Comprehensive protection features include - PROCHOT# indicator for system low voltage, adapter overcurrent, battery overcurrent or system overheating - Hardware-based adapter-current and battery-current limits - Supports sudden removal of battery in system Turbo mode
- 16 switching frequency options from 350kHz to 1MHz
- Low quiescent current
- SMBus and auto-increment I2C compatible
- Intersil Robust Ripple Regulator (R3™) modulation scheme provides excellent light-load efficiency and fast dynamic response
- 32 Ld 4x4mm2 QFN package
- Pb-free (RoHS compliant)
Datasheet:
https://bit.ly/2MK6mFd
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- Free Standard Shipping on $100+ Orders to the USA.
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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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4.3 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Great alternative to purchasing new cartridges
Color: 2 Black,1 Cyan,1 Magenta,1 Yellow, Color: 2 Black,1 Cyan,1 Magenta,1 Yellow
Cheaper than purchasing new cartridges every time the printer needs more ink. Easy to use. Bottles are a generous size. Ink quality is the same as I already had in my printer.
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Reviewed in the United States on December 12, 2025
★★★★★ 5
Reliable, Fast, and Excellent Print Quality — A Great All-Around Printer
Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN, Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN
I’m extremely happy with this printer and would highly recommend it to anyone looking for a reliable, high-quality device. Setup was quick and straightforward, and it connected seamlessly to both my Wi-Fi and mobile devices. Print quality is excellent—text is crisp, colors are vibrant, and photos come out looking professional. It’s also impressively fast and much quieter than printers I’ve owned in the past. I appreciate the user-friendly interface and the efficient ink usage, which helps keep long-term costs down. Overall, this printer delivers great performance, convenience, and value, making it a fantastic addition to my home office.
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Reviewed in the United States on January 11, 2026
★★★★★ 1
I would rather deal with a dot matrix printer...
Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN
Let's start with the positive - scanner works fine. I am not a huge fan of having to use a separate program to initiate and scan but with that said, the scanner part of this "printer" is decent, fast, clear and has some functionality (two sided capabilities, rotation, etc.) that is appreciated. It would be nice if it would have OCR option so that you don't have to use a separate program to convert but that is just a convenience thing. Well wait, who doesn't like convenience when it seems like this could be a simple option?!
Now for the negative part of this "printer".
Issues:
- 9 times out of 10 it will not print upon command and usually requires me to unplug, wait 30 seconds, plug and restart printing. Simply turning it off and on with the power button usually doesn't solve the problem hence the unplugging. And even unplugging sometimes doesn't do the trick. Don't worry, it will print the document randomly if you don't cancel the print job usually when you least expect it to and have a minor uptick in the heart rate.
- Will not print in black and white (even if selecting the option to print only in B&W) once the color cartridges run out. Yes, it allows you maybe to do this a few times with a warning that it can only do that because the color is out however that is temporary and it will eventually not allow you to print in B&W until you replace the color. Completely ridiculous to me...
- Speaking of color cartridges, these do not last long. I rarely print in color however I have had this printer for less than a year and have replaced once and now have to replace again. Also finding that these color cartridges are hard to find locally at like walmart or target and when in a pinch, that is bad. So as stated above, when you color goes out, need just a straight B&W print job and can't find the cartridges around town - you are S.O.L.
If you are wanting a multi-use "printer" that just scans - this is a decent option. If you are wanting something more than a scanner that prints ink on paper, do not put this in your cart and move on.
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Reviewed in the United States on December 2, 2023
★★★★★ 5
incredible wide format printer
Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN, Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN
I had a WF 4530 that I bought over 10 years ago - that printer was a tank and the ability to scan was HUGE. That printer recently died on me - over a decade with inkjet - with no issues despite long stretches of no use - I can't complain one bit.
I bought the 7820 WF - it's an upgrade in every aspect. Quiet. Fast. Great print quality. Edge to edge printing. Wide format (if/when I need it). I've added a photo to the review of a printout I did using HP photo paper (4x6) to give you an idea of the quality - for home printed inkjet it's (IMO) top of the scale.
One note: Don't use windows 10 or windows 11 drivers - download and install the drivers from Epson - they give you scan to pdf, scan to your computer, and the printout resolution from the windows drivers is horrible - the epson drivers are really needed.
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Reviewed in the United States on June 17, 2023
★★★★★ 5
WAS a good printer
Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN, Style: WF-7820, Set: SINGLE TRAY (250 sheets/FAX/ADF/PRINT/COPY/SCAN
I was excited to purchase a printer that could print LARGE prints for my small business.
After 2 months of using this printer, I had to find a company that sold just the replacement chips. My cartridges would be halfway full of ink but printer would throw a code saying ink was out. Now after using this printer for less than 6 months, it will not read any new chips (on brand new cartridges even). When I purchased it on July 16th for under $200, I thought it was a great deal. Now I know they were trying to get rid of their junk printers!!
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Reviewed in the United States on December 27, 2024