The OZ8681LN provides a clear set of key electrical parameters critical for any design or repair:
The (often marked 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 notebook and netbook computer systems to manage the complex charging requirements of multi-chemistry batteries. Core Functionality & Architecture
The '8681L' IC is a powerful testament to the complexity of modern electronics. It is not a simple chip but a highly integrated, intelligent battery charger that serves as the brain behind the power system in countless portable devices. 8681l ic datasheet
If your chip is related to battery charging, check these alternatives:
| | Value | |:---|:---| | Manufacturer | O2Micro | | Primary Function | Power Management IC (PMIC) | | Input Voltage Range | 2.7V to 5.5V | | Maximum Output Current | Up to 1A | | Package | QFN-16 | | Typical Applications | Battery charging circuits, power management | The OZ8681LN provides a clear set of key
The 8681L is a smart battery charger controller. It talks directly to the laptop system using a special language called . This allows it to charge many different types of battery chemistries with high precision.
: It is commonly housed in a QFN16 (Quad Flat No-lead, 16-pin) package, which is compact and suitable for slim electronics like ultrabooks. It is not a simple chip but a
Note: Always consult the official manufacturer datasheet for the specific revision of the chip, as pinning might vary slightly between manufacturers (like O2Micro). AC Adapter Detection. VREF: Reference voltage output. ICM: Input Current Monitor. ACN/ACP: Current sensing inputs for the adapter. CMSRC: Common Source input for the input MOSFET. ACDRV: Drive output for the input FET. SDA: SMBus Data Line. SCL: SMBus Clock Line. VCC: Main power supply for the IC. SRP/SRN: Sensing resistor inputs for battery current. VFB: Battery Voltage Feedback. CHGEN: Charge Enable Input. BOOT: Bootstrap pin for high-side driver. UGATE: High-side gate drive. PHASE: Switching node. LGATE: Low-side gate drive. Troubleshooting and Repair: Using the 8681L IC
: Includes safeguards against incorrect voltage, short circuits, and internal overheating.
: High-side differential sense pins connect across an external sense resistor to monitor the total current entering from the AC adapter.