Understanding these features on the datasheet is critical. For a regulator-like 8681L, the input-voltage range tells designers which power rails it can accept (e.g., 2.5–5.5 V for many low-voltage regulators). Output accuracy and line/load regulation figures indicate how stable the regulated voltage will be under changing supply and load conditions. For switching regulators, efficiency curves by output current and input voltage help estimate heat dissipation and battery life. For driver or interface ICs, propagation delays, output drive strength, and input thresholds determine timing and compatibility with other logic in the system.
This IC is a critical component for power management on laptop motherboards. You will most frequently find it in:
The 8681L is typically housed in a compact, thermally enhanced SOP-8 (EP) or DFN package. Below is the standard pin layout and description. Pin Number Description BS 8681l ic datasheet
The OZ8681LN provides a clear set of key electrical parameters critical for any design or repair:
: Rather than operating on static, hardwired hardware thresholds, the chip communicates continuously with the battery pack’s integrated fuel gauge processing units. If the battery requests a specific charge profiles (Constant Current / Constant Voltage phases), the OZ8681L automatically scales its PWM output accordingly. 5. Diagnostics and Troubleshooting Faulty 8681L ICs Understanding these features on the datasheet is critical
Replacing a defective 8681L IC requires precise surface-mount rework tools. Because it uses a QFN package with hidden leads underneath the chip body, a hot-air rework station and high-quality flux are required. Component Parameter Target Handling Specifications QFN-16 Surface Mount Device Moisture Sensitivity
: The center of the QFN-16 package features an exposed thermal ground pad. Ensure this pad is cleanly reflowed to the PCB to allow adequate heat dissipation. You will most frequently find it in: The
GaAs is notoriously finicky. Look for a small resistor (R1 ~ 10 Ohm) in series with the gate bias. This kills VHF oscillations that the datasheet’s S-parameters won't show you.
The (often marked as 8681L or OZ8681LN ) is a highly integrated, SMBus programmable, multi-chemistry battery charge controller . Designed predominantly for single-battery portable computer systems, this integrated circuit (IC) serves as a critical Smart Battery Charger (SBC) . It is a foundational component in laptop power management, frequently found on motherboards for modern computing electronics like Lenovo IdeaPad systems.
Frequently found in laptop power circuits.