The chip smartly allocates the AC adapter power between the system load and the battery charger, ensuring the shortest possible charging time when the system is operational.
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Adaptable for various portable electronics requiring wireless communication and precise battery management. Alibaba.com Download Resources 8681l ic datasheet pdf hot download
: Designed for use as a Smart Battery Charger (SBC) within a Smart Battery System (SBS), commonly found in Lenovo IdeaPad and other portable computer motherboards.
Finding the exact requires searching for the full manufacturer part number OZ8681L . You can find technical documentation and purchase options through several specialized electronics platforms: The chip smartly allocates the AC adapter power
To prevent inrush current from collapsing the input power supply during startup, the 8681L features a programmable soft-start. An internal current source charges an external capacitor connected to the EN/SS pin. The output voltage smoothly ramps up in direct proportion to this capacitor's charging curve. Advanced Protection Mechanisms
: Factory chips are typically soldered with lead-free compounds requiring a reflow peak temperature profile reaching 245∘C245 raised to the composed with power C 260∘C260 raised to the composed with power C Alibaba
| Parameter | Value / Range | | :--- | :--- | | | 18.6V - 20V | | Linear Regulator Output (VDDA) | 5.8V | | Adapter Presence Output (ACAV) | 3.3V (Active High) | | SMBus Clock/Data (SCL/SDL) | 3.3V | | Efficiency | >95% | | Battery Voltage Accuracy | ±0.5% | | Charging/Adapter Current Accuracy | ±3% | | Battery Voltage DAC | 11-bit (1.024V – 19.200V) | | Charge Current DAC | 6-bit (128mA – 8.064A) | | Adapter Current DAC | 6-bit (256mA – 11.008A) | | Supported Battery Chemistries | Li-Ion / Li-Polymer (1 to 4 cells) |
| Parameter | Value/Range | Unit | |-----------|-------------|------| | Input Voltage (VCC) | 4.5 – 40 | V | | Output Current (Max) | 1.5 | A | | Switching Frequency | 100 – 500 | kHz | | Operating Temperature | -40 to +125 | °C | | Built-in Protection | OTP, OCP, UVLO | – |