8681l Ic Datasheet [verified] Jun 2026

: A total short-circuit inside the OZ8681L can pull down the primary power rail (e.g., VIN or 19V rail), preventing the laptop from triggering any power-on state.

Practical troubleshooting tips:

Accepts raw power from the main AC/DC power adapter. 8681l ic datasheet

Separate the sensitive analog ground traces ( FBcap F cap B COMPcap C cap O cap M cap P ) from the noisy power ground ( GNDcap G cap N cap D ). Connect them at a single point under the IC.

Manufactured by O2Micro International Ltd, this microchip serves as a Smart Battery Charger (SBC) within a Smart Battery System (SBS). It is most frequently encountered during laptop repairs, particularly within Lenovo IdeaPad series systems and various AMD-based and Intel-based laptop architectures. Core Functional Specifications : A total short-circuit inside the OZ8681L can

Programming pin to configure the target battery cell count (e.g., 2S, 3S, or 4S). VREF

Because this component sits at the gateway of the laptop's power management rails, a failure often results in absolute power disruption. Motherboard technicians frequently replace this IC when diagnosing the following behaviors: Connect them at a single point under the IC

Because the OZ8681L sits on the frontline of laptop power delivery, it is vulnerable to external failures like generic AC adapter surges, liquid damage, or shorts on the main system rails. Common Failure Symptoms

: If you are soldering a new chip using leaded solder on a lead-free motherboard layout, tweak your hot-air station profile carefully. Overheating during the reflow process can delaminate or permanently destroy the silicon inside the new chip.

The (frequently designated as OZ8681LN or OZ8681L ) is a highly integrated, SMBus-programmable, multi-chemistry battery charge controller developed by O2Micro. This specialized integrated circuit serves as a Smart Battery Charger (SBC) within a Smart Battery System (SBS), regulating power architecture primarily inside laptop motherboards like the Lenovo IdeaPad series.

: Pins dedicated to main VCC supply from the adapter, analog ground (AGND), and power ground (PGND).