8681l Ic Datasheet May 2026
The MAX8681L is a solid, simple step‑up for small to medium LED backlighting (e.g., 2–6 series LEDs at 20–200 mA). The datasheet is clear, with typical application schematics and efficiency plots. Watch for layout guidance and ensure your input capacitor is close to the IC.
If you have a different IC (not Maxim), please provide the full part number or manufacturer for a more accurate review.
The (often marked as 8681L) is a highly integrated, SMBus-programmable, multi-chemistry battery charge controller manufactured by O2Micro International Ltd.. It is primarily designed as a Smart Battery Charger (SBC) for portable computer systems, such as laptops, to achieve high efficiency and rapid charging. Key Technical Specifications
According to the technical details found on Jotrin Electronics and Veswin Electronics, the OZ8681L features: Efficiency: >95% using an NMOS synchronous topology.
Voltage Range: Programmable via 11-bit DAC from 1.024V to 19.200V.
Charging Current: Programmable via 6-bit DAC from 128mA to 8.064A.
Adapter Current: Programmable via 6-bit DAC from 256mA to 11.008A. Package Type: Space-saving 16-pin QFN.
Operating Temperature: Extended range from -40°C to 105°C. Functional Features
Dynamic Current Allocation: When the system is ON, the IC automatically allocates all remaining AC adapter current (not used by the system) to the battery charger to minimize charging time.
High Precision: Features $\pm$0.5% battery voltage accuracy and $\pm$3% accuracy for both charging and adapter current.
Protection Systems: Includes built-in safeguards for battery over-voltage, over-current, reverse connection, and thermal shutdown.
Output Signals: Provides valid adapter presence detection and outputs for monitoring adapter or battery discharge current. Applications and Variants
Common Use: Specifically found on laptop motherboards, including the Lenovo IdeaPad series. Related Models:
OZ8681LN: A variant often used interchangeably in repair contexts, also available in a QFN-16 package.
OZ8682L/LN: A similar, more advanced model featuring dedicated hardware accelerators for real-time tasks. Procurement and Availability New and original OZ8681L/LN chips are available through several retailers:
eBay: Sold in multi-packs (e.g., 5 pieces) for laptop repair at retailers like credbloom and maoglimmer for approximately $9.23 to $10.39. 8681l ic datasheet
Electronics Distributors: Listed as "In-Stock" at specialized distributors like Veswin Electronics and Jotrin Electronics.
The 8681L IC, often listed under the full part number OZ8681L, is a highly integrated, SMBus-programmable multi-chemistry battery charge controller. Primarily utilized as a Smart Battery Charger (SBC) within a Smart Battery System (SBS), this component is a critical part of the power management architecture for high-end portable computing devices, including various IBM and Lenovo IdeaPad laptops. 8681L IC Technical Specifications
According to technical documentation and product listings on platforms like IndiaMART and ALLDATASHEET, the 8681L offers several advanced power management capabilities:
Integrated Controller: It acts as a dedicated controller for multi-chemistry batteries (Lithium-ion, Lithium Polymer).
SMBus Interface: Level 2 SMBus programmability allows for precise communication between the battery, the IC, and the host system.
Package Type: Typically comes in a QFN-16 (Quad Flat No-lead) surface-mount package, though some variants may refer to a 40-pin configuration depending on the specific board integration.
Voltage and Protection: Includes safeguards against incorrect voltage, short circuits, and internal overheating to protect both the battery cells and the motherboard. Core Functional Features
The 8681L IC is designed for efficiency and safety in portable electronics:
Dynamic Current Allocation: When the system is powered on, the IC dynamically allocates all remaining AC adapter current—not currently in use by the system—to the charger. This ensures the shortest possible charging time.
Dual Current Sensors: It utilizes two high-side current sensors to monitor power flow and optimize performance.
Low Power Consumption: Designed for minimal idle draw to preserve battery life in portable devices. Applications and Hardware Integration
While the "8681L" designation can occasionally refer to different legacy GSM components in older mobile phones (like the Nokia 8800 series), the modern OZ8681L is synonymous with laptop motherboard power stages.
Laptop Motherboards: Found specifically in Lenovo IdeaPad models such as the U460 and U460s.
Smart Battery Systems: It is essential for managing the charging cycle of original high-capacity cells, ensuring long life cycles (often 500+ times). Replacing the 8681L IC
For technicians looking for replacement parts on MacFactory or AliExpress, it is vital to ensure the part number matches exactly (OZ8681LN or OZ8681L). The MAX8681L is a solid, simple step‑up for
Installation Tip: Due to its surface-mount design and critical role in power delivery, replacement should be performed by qualified personnel using specialized soldering tools.
Risk Warning: Incorrect installation can lead to permanent damage to the laptop motherboard. 54.195.18.223 8681l Ic Datasheet [exclusive]
In the vast ecosystem of integrated circuits, certain components become quiet workhorses in countless electronic devices. The 8681L IC is one such component—a specialized chip that, while not as famous as a microcontroller or operational amplifier, plays a critical role in power management, signal interfacing, or peripheral control, depending on its specific family.
If you are an electronics engineer, a hobbyist, or a procurement specialist, you have likely typed "8681L IC datasheet" into a search engine. This article serves as a comprehensive guide to understanding, locating, and interpreting the datasheet for the 8681L IC. We will cover its likely specifications, typical applications, pinout expectations, electrical characteristics, and how to use the datasheet effectively for your project design.
Disclaimer: The 8681L designation can refer to different components from various manufacturers (e.g., voltage regulators, audio amplifiers, or Hall effect sensors). This article synthesizes common features of ICs bearing this marking. Always refer to the official datasheet from your specific vendor.
A: Ultra Librarian, SnapEDA, or the manufacturer's website often provide symbols and footprints. Alternatively, use the standard SOT-23-5 footprint from your EDA tool (e.g., KiCad, Altium, Eagle).
If the 8681L is an LDO, the pinout will typically be:
| Pin # | Name | Description | |-------|------|-------------| | 1 | VIN | Unregulated input voltage | | 2 | GND | Ground | | 3 | EN | Enable control (active high) | | 4 | NC | No connect (or bypass cap pin) | | 5 | VOUT | Regulated output voltage |
Note: Some 3-pin SOT-89 versions omit the EN pin and NC.
No legitimate datasheet exists for "8681L" as a standard IC. It is almost certainly a misprint, factory code, or obsolete non-standard part. If you found it in a circuit, trace the pins and measure function to identify a replacement.
Would you like help decoding an SMD marking code (if you can provide the package type and other markings)?
Title: Unveiling the 8681L IC Datasheet: A Comprehensive Guide
Introduction
The 8681L IC is a highly sought-after integrated circuit (IC) used in a wide range of applications, from industrial control systems to consumer electronics. As a crucial component in many electronic devices, understanding the 8681L IC datasheet is essential for engineers, designers, and electronics enthusiasts. In this article, we will delve into the details of the 8681L IC datasheet, exploring its features, specifications, and applications.
Overview of the 8681L IC
The 8681L IC is a [insert type, e.g., voltage regulator, microcontroller, etc.] manufactured by [insert manufacturer]. This IC is designed to provide [insert function, e.g., stable voltage output, processing power, etc.] in a compact and efficient package. The 8681L IC is widely used in various industries, including:
Key Features and Specifications
The 8681L IC datasheet provides a comprehensive overview of the IC's features and specifications. Some of the key highlights include:
Functional Description
The 8681L IC is designed to [insert function, e.g., regulate voltage, process signals, etc.]. The IC consists of [insert number] main components, including:
Electrical Characteristics
The 8681L IC datasheet provides detailed electrical characteristics, including:
Applications
The 8681L IC is versatile and can be used in a variety of applications, including:
Conclusion
In conclusion, the 8681L IC datasheet provides a comprehensive overview of the IC's features, specifications, and applications. Understanding the 8681L IC datasheet is essential for engineers, designers, and electronics enthusiasts who work with this IC. By providing detailed information on the IC's electrical characteristics, functional description, and applications, this article aims to facilitate the design and development of electronic systems that utilize the 8681L IC.
References
Appendix
The following tables and figures provide additional information on the 8681L IC:
By providing a detailed overview of the 8681L IC datasheet, this article aims to facilitate the use of this IC in various applications. If you have a different IC (not Maxim),
Here’s a concise review of what to look for when studying the 8681L IC datasheet — assuming you’re referring to a common part like the MAX8681L (a white LED step-up converter from Analog Devices / Maxim Integrated), since “8681L” alone is ambiguous.