Ic Datasheet Verified: 8681l

Bootstrap pin. Requires a capacitor to SW to drive the high-side gate. IN

The 8681L, often identified by the full part number (also seen as OZ8681LN), is a specialized integrated circuit designed as a multi-chemistry battery charge controller

in laptop motherboards, particularly for Lenovo IdeaPad and Yoga series. WIT Computers 8681l ic datasheet

: Monitoring thermal profiles to throttle charging if the battery becomes too hot. Historical Context: The 8681 "Transmitter" Variant

In the crowded skyline of a Lenovo Yoga 2 Pro motherboard, the sits in its 16-pin QFN package, a compact square measuring just a few millimeters. To the naked eye, it’s just another black speck, but to the laptop’s 7.4V Lithium Polymer battery, it is the ultimate gatekeeper. Bootstrap pin

The , 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

The datasheet confirms the IIP3 (Input Third-Order Intercept Point) is around -3 dBm. For a low-current LNA, this is respectable. It ensures that intermodulation products don't swamp the satellite signals. WIT Computers : Monitoring thermal profiles to throttle

: In its mobile application variants, it manages 900 MHz and 1800 MHz frequencies.

| IC Part | Output Voltage | Max Current | Dropout | Quiescent Current | Package | Best For | |---------|----------------|-------------|---------|-------------------|---------|----------| | | 3.3V | 300 mA | 120 mV | 25 µA | SOT-23-5 | Battery, low noise | | LM1117-3.3 | 3.3V | 800 mA | 1.1V | 5 mA | SOT-223 | High current, legacy | | MCP1703-3.3 | 3.3V | 250 mA | 625 mV | 2 µA | SOT-23 | Ultra-low IQ | | XC6206P332 | 3.3V | 200 mA | 250 mV | 1 µA | SOT-23 | Cost-sensitive, low power | | RT9013-33 | 3.3V | 500 mA | 250 mV | 25 µA | SC-70 | Fast transient response |

Thermal shutdown circuitry to protect the IC during high-load switching states. Pin Configuration (QFN-16 Layout)

+-----------------------+ | 16 15 14 13 12 | 1 | | 11 2 | 8681L IC | 10 3 | (Top View) | 9 4 | | 8 | 5 6 7 8 9 | +-----------------------+