8682l Ic Datasheet Updated

The 8682L (also identified as OZ8682L or OZ8682LN) is a high-performance battery charging controller integrated circuit primarily used in laptop power management systems. Manufactured by O2Micro International, it is designed to manage and regulate power flow from an external adapter to the laptop battery and motherboard. Key Specifications & Features

The 8682L is essential for modern laptop repair due to its role in the charging circuit. Its technical profile includes: Function: SMBus Level 2 Battery Charger IC.

Package Type: Compact QFN-16 (16-pin Quad Flat No-lead), which is ideal for space-constrained laptop motherboards. 8682l ic datasheet

Safety Interlocks: Features logic for motor control (in industrial applications) and safety interlocks with precision.

Protection Circuitry: Includes built-in protection against over-charge, over-discharge, overheating, over-current, and short-circuits. The 8682L (also identified as OZ8682L or OZ8682LN

Performance: Known for low power consumption design and fast-charging capabilities with no "memory effect". Pin Configuration (General Overview)

While exact pinouts for the 8682L can vary by specific manufacturer implementation, typical 16-pin charging ICs of this series include connections for: (5piece)100% New 8682L OZ8682L OZ8682LN QFN-16 Chipset Key Specifications from the Datasheet Based on the

Key Specifications from the Datasheet

Based on the standard datasheet for the 8682L series, here are the critical electrical characteristics:

Input Voltage Range: 2.5V to 16V (Absolute maximum: 18V)
Output Voltage Options: Fixed (1.8V, 3.3V, 5.0V) and Adjustable (1.25V to 15V)
Output Current: Up to 1.5A (subject to thermal derating)
Dropout Voltage: 380mV typical at 1A (Vout = 3.3V)
Line Regulation: 0.05% typical
Load Regulation: 0.1% typical
Quiescent Current: 4mA (no load), 1µA in shutdown mode
PSRR (Power Supply Rejection Ratio): 65dB at 1kHz
Protection Features: Overcurrent limiting (2.2A typical), thermal shutdown (160°C), reverse-battery protection.

4. Contact Distributors

LCSC.com – Search for "8682L" in their component database.
WinSource or Mouser – Use part number search; if unavailable, request a quote.

Overview

The 8682L is a low-power, high-performance integrated circuit designed for RF front-end and microcontroller applications (assumption: common use case). It typically combines a transceiver, power management, and peripheral interfaces to support wireless communication in the sub-GHz or ISM bands. This guide covers typical features, pinout, electrical characteristics, functional blocks, RF considerations, typical application circuits, PCB layout best practices, firmware integration, testing, and troubleshooting.

Common Applications and Design Examples

3. Pros ✅

Very Low Dropout – Operates with input only 0.5V above output (better than older 78L05 type).
Wide Input Voltage – Can handle unregulated supplies up to ~30V, suitable for battery or adapter input.
Built-in Protections – Includes thermal shutdown and output current limiting.
No External Components Required – Stable without output capacitors (though 0.1µF ceramic input + 10µF output is recommended).
Low Output Noise – Ideal for audio, RF, or microcontroller analog references.
Cheap & Widely Available – Through-hole and SMD versions cost under $0.50 in volume.