W83L771G

PMIC - Thermal Management

Intel W83L771G is a smaller version of the existing W83771G, specifically designed for portable platforms. The W83L771G is one of Intel\'s Prime Power/Thermal Management solutions, offering an all-in-one device providing portable notebooks and handheld applications with cost effective power management.

Application Field

The W83L771G offers several features that are ideal for portable platforms, such as comprehensive power saving features for media players, notebook computers and other portable applications. The device is able to provide low power consumption solutions in idle, standby, sleep and active states.

In particular, the W83L771G provides a low noise, low power solution suitable for media players or other portable devices with display panels whose power consumption is an important factor in battery life and heat management. It also provides functional control for such critical components as thermal fans, temperature sensors and smart battery controls.

Working Principle

The W83L771G works by detecting system conditions when standby and active states change, then controlling different power sources according to system status. When setting up the device, designers can determine how active and standby states are defined. In order to achieve low power consumption without performance degrading, the W83L771G is able to automatically adjust power supply levels, CPU and system clocks, and memory speeds.

In addition, the device also provides control over temperature-sensitive components, such as the thermal fans and temperature sensors. The device is able to monitor fan speeds and alert the system when warning levels are exceeded by automatically sending a signal to the CPU or system management bus (SMB). This allows the processor to detect an overheat situation and take corrective action before it could become an issue.

Conclusion

The Intel W83L771G is an ideal solution for portable platforms due to its small form factor and low power consumption. It provides valuable power saving features, as well as functional control over thermal fans and temperature sensors. This allows the device to effectively monitor system temperatures and alert the processor before an overheat situation can become an issue. By providing these features in a single device, the W83L771G offers a powerful and cost-effective solution for portable applications.