Lower your rework station temperature down to if using leaded repair alloy.
Lead-free or Leaded flux paste (Amtech or chip-quik equivalent)
Check the voltage at the ACOK pin. It must pull up high (typically 3.3V) to signal the system motherboard architecture that the incoming power adapter is safe to draw current from.
Apply a small amount of tacky flux around the defective 8681L IC. Set your hot air station to with medium airflow. Move the nozzle in circular motions around the chip. Gently lift the IC using tweezers once the solder liquefies completely. Step 2: Pad Preparation 8681l ic datasheet pdf download install
If direct “8681L” fails, try:
Sites like DigiKey, Mouser, Arrow, and Element14 host verified, manufacturer-approved PDF datasheets on their product pages.
Configured to handle continuous load currents up to 6A–8A depending on circuit design. Lower your rework station temperature down to if
The (often referred to simply as 8681L ) is a highly integrated SMBus programmable battery charge controller manufactured by O2Micro. It is primarily used as a smart battery charger (SBC) in portable computer systems, such as Lenovo IdeaPad and Yoga series laptops. 8681L IC Overview
If using a soldering iron, melt a tiny bead of solder onto one corner pad of the PCB. Using your tweezers, align the 8681L perfectly over the pads. Touch the soldering iron to the pre-soldered pad to melt the joint, securing the IC in place. Re-verify the alignment of all other pins. Step 4: Final Soldering
The OZ8681L is a feature-rich component. Based on available technical summaries and distributor listings, its key attributes include: Apply a small amount of tacky flux around
Using tweezers, place the 8681L onto the footprint, ensuring Pin 1 aligns with the marker on the board.
. It is predominantly used as a smart battery charger (SBC) in laptop motherboards, notably within the Lenovo IdeaPad series and some Toshiba Portege models Technical Specifications According to data found on , the key technical details include: Package Type : QFN-16 (16-pin Quad Flat No-lead). Application
Ensure correct pin-1 alignment according to the QFN-16 footprint on your specific motherboard PCB.
or similar protocols for communicating with the system microcontroller. Installation and Soldering Guide for 8681L
Before attempting to test or install the 8681L IC, you must understand its pin architecture. For a standard 8-pin package layout, the pin configuration generally follows this logic: