Internal low-dropout (LDO) regulator output or primary IC bias voltage input.
Measure the resistance across the input and output shunt resistors. A microscopic fracture in these components will alter their value, fooling the IC into detecting false overcurrent events and shutting down charging. 📥 Where to Find Official Datasheets
: Built-in over-voltage, over-current, and over-temperature protection guard loops to prevent thermal runaway during heavy multitasking scenarios. 8682L Pinout Configuration (QFN-16) 8682l ic datasheet
The following are the key specifications of the 8682L IC:
Post-regulation of switching supplies, battery-powered equipment, audio/video analog rails, and 5V/3.3V microcontrollers. Internal low-dropout (LDO) regulator output or primary IC
The 8682L is a frequent point of failure in laptops that refuse to turn on or indicate "plugged in, not charging" errors. When troubleshooting boards containing an OZ8682LN chip, follow this sequence using a digital multimeter and oscilloscope:
| IC | Dropout | Iq (typ) | Max Iout | Enable | Best For | |----|---------|----------|----------|--------|----------| | | 0.6V | 3mA | 300mA | No | Cost-sensitive, moderate current | | 78L05 | 1.7V | 3mA | 100mA | No | Legacy designs, lower current | | LM1117 | 1.2V | 5mA | 800mA | No | Higher output current | | MCP1700 | 0.18V | 1.6µA | 250mA | No | Battery-powered (low Iq) | | AP2112 | 0.3V | 55µA | 600mA | Yes | Enable + low dropout | 📥 Where to Find Official Datasheets : Built-in
: A detailed explanation of how the IC works, including its key features and modes of operation.
Founded in April 1995, O2Micro serves the computer, consumer, industrial, and communications markets. The OZ8682 family of battery chargers is built upon O2Micro’s patented parallel‑powering technology, which makes the Hybrid Power Boost feature possible.