8681l: Ic Datasheet !new!

The OZ8681L (often referred to simply as 8681L) is a specialized SMBus battery charge controller primarily used in portable computer systems, such as laptops. It is a highly integrated IC designed to manage the charging of multi-chemistry batteries while optimizing power allocation between the system and the charger. Overview and Functionality

The 8681L functions as a Smart Battery Charger (SBC) within a Smart Battery System (SBS). Its core purpose is to provide precise charging control, ensuring that the battery is charged efficiently without compromising the power needs of the host device. Key features typically found in its datasheet include:

SMBus Programmability: It communicates via the System Management Bus (SMBus) protocol, allowing the system's embedded controller to program charging parameters like voltage and current dynamically.

Dynamic Power Allocation: The IC uses high-side current sensors to monitor the power consumption of the entire system. If the system is active, the 8681L allocates all remaining current from the AC adapter—not currently used by the hardware—to the battery, which minimizes charging time.

Multi-Chemistry Support: It is designed to work with various battery chemistries, making it a versatile component for different laptop models. Physical and Electrical Specifications 8681l ic datasheet

Package Type: It is commonly housed in a QFN16 (Quad Flat No-lead, 16-pin) package, which is compact and suitable for slim electronics like ultrabooks.

Application: You will frequently find this chip on laptop motherboards (e.g., Lenovo ThinkPad or Sony models) as part of the power management circuit.

Availability: Technical professionals often source the 8681L IC from specialized electronic component retailers like MacFactory or SVP Technologies for motherboard repairs. Importance in Hardware Repair

In the context of laptop repair, the 8681L is a critical failure point for "plugged in, not charging" issues. Technicians refer to its datasheet to verify pin voltages (such as VCC, SMBus Clock/Data lines, and current sense inputs) to diagnose whether the IC itself is faulty or if the issue lies with external components like MOSFETs or the battery itself. The OZ8681L (often referred to simply as 8681L

I searched for the exact term "8681l ic datasheet" , but I could not find a verified or widely recognized integrated circuit (IC) with that precise part number in major databases (e.g., Texas Instruments, Analog Devices, NXP, or standard distributor inventories like Mouser/Digikey).

Based on common naming patterns, here is a review of what this part likely is and how to proceed:

Example Use Case

If the 8681L is a type of voltage regulator, for instance, you would look for:

If the 8681L has a specific application, such as in RF circuits, automotive systems, or IoT devices, the datasheet will likely include detailed specs relevant to those areas. The input voltage range and output voltage options

4. Absolute Maximum Ratings

Stresses exceeding these ratings may cause permanent damage to the device.

| Parameter | Symbol | Rating | Unit | | :--- | :--- | :--- | :--- | | Supply Voltage | VDD | -0.3 to +6.0 | V | | Input Voltage | VIN | VSS-0.3 to VDD+0.3 | V | | Output Current | IOUT | ± 10 | mA | | Operating Temperature | Topr | -40 to +85 | °C | | Storage Temperature | Tstg | -50 to +125 | °C |

Steps

  1. Copy the full manufacturer part number from the datasheet's "Ordering Information" section. Example: 8681L-3.3V-5TR.
  2. Check life cycle status – If the datasheet says "Obsolete" or "Not for New Designs," consider an alternative.
  3. Purchase from authorized distributors – Mouser, Digi-Key, Arrow, or Newark.
  4. For large volumes – Contact manufacturer representatives directly (e.g., via their website).

1. General Description

The 8681L is a single-channel capacitive touch sensor IC. It is designed to replace traditional mechanical buttons with a capacitive pad. The device integrates a voltage regulator, oscillator, and capacitive detection circuit. It is widely used in consumer electronics, home appliances, and industrial control panels.

The IC is typically used to detect human touch on a sensor pad, changing the output state accordingly. It offers high sensitivity, low power consumption, and strong anti-interference capabilities.

4. Typical Limitations