8682l Datasheet File
What are you observing on the pins?
Because it acts as a gatekeeper for charging power, poor thermal coupling leads to premature thermal throttling. Technicians replacing this IC must ensure uniform solder paste application on the center ground pad to prevent localized hot spots that trigger internal safety shutdowns. Functional Architecture and Pinout Focus
Disclaimer: Specifications provided are aggregated from common sources and engineering reverse-engineering. Always verify with official documentation from the component’s original manufacturer before production or safety-critical use.
: Supports charging for Li-Ion and other multi-chemistry batteries with 1 to 4 cells . Programmable Settings : Battery Voltage : 1.024V to 19.200V (11-bit DAC). Charge Current : 128mA to 8.064A (6-bit DAC). Adapter Current : 256mA to 11.008A (6-bit DAC).
The OZ8682L is a highly integrated, SMBus-programmable, multi-chemistry battery charge controller designed by (O2Micro International). It is specifically engineered to function as a synchronous buck converter, a type of DC-to-DC converter that steps down voltage efficiently while minimizing heat generation. This makes it an ideal solution for regulating the power flowing into the batteries of modern laptops, notebooks, and tablets. 8682l Datasheet
The physical package relies on a compact 16-pin QFN pattern with an exposed thermal ground pad on the bottom layer. Understanding the pin mapping is key when probing a dead motherboard with a multimeter or an oscilloscope.
The IC is housed in a space-saving package, which, while excellent for compact designs, requires specialized equipment for handling and rework.
Offers high-accuracy monitoring with ±0.5% battery voltage and ±3% current accuracy, which is essential for maintaining the health of 1 to 4-cell Li-Ion batteries.
Understanding the pinout is the first step toward successful PCB layout design. Below is the typical pin configuration for an 8682l device in a standard 8-pin package: Pin Number Description GND What are you observing on the pins
Senses battery charge current via precision low-value shunt resistors. Common Failure Symptoms & Repair Tips
: Outputs pulse-width modulated (PWM) signals to control external synchronous buck MOSFETs. This translates high adapter voltages (typically 19V–20V) down into proper battery charging voltages (e.g., 8.4V, 12.6V, or 16.8V).
, focusing on the specific voltage, current, and temperature specs of the 8682L?
: The clock line for SMBus communication. It coordinates data transfers between the chip and the laptop's host microcontroller. Programmable Settings : Battery Voltage : 1
✅ It dynamically balances energy demands between external power adapters and internal Li-ion battery arrays to prevent system brownouts during peak power events.
with hybrid power boost capabilities, commonly found in laptop motherboards and portable electronic devices. Key Technical Specifications According to the OZ8682L technical documentation , here are the primary specifications: Specification Manufacturer O2Micro International SMBus Level 2 Battery Charger with Hybrid Power Boost Package Type QFN-16 (16-pin Quad Flat No-lead) Application Laptop power management, battery charging circuits Dimensions Approximately 10 x 10 x 2 mm (shipping size) Operational Features Hybrid Power Boost:
: Traces linked to current-sense inputs ( CSIP / CSIN ) must be routed as a differential pair away from noisy high-voltage switching nodes to avoid signal corruption. 6. Sourcing and Counterfeit Verification
The (also known as the OZ8682L or OZ8682LN ) is an integrated circuit developed by O2Micro . It is primarily used as a DC/DC converter and battery charger controller , frequently found in laptop motherboards like the Apple MacBook Pro A1278 (Early 2011). Key Specifications & Features Manufacturer: O2Micro Package Type: QFN16 (16-pin Quad Flat No-lead)