Controller IC Chip - MOSFET F71808eu F71808 chip for laptop - Integrated Laptop Chip (Code 1-CHIP0440)

Controller IC Chip - MOSFET F71808eu F71808 chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0440)

The F71808E which is the featured IO chip for PC system equippes one UART Port, Hardware Keyboard Controller, Hardware Monitor, ACPI management function and some GPIO pins. The F71808E integrated with hardware monitor, 8 sets of voltage sensor, 3 sets of creative auto-controlling fans and temperature sensor pins for the accurate dual current type temperature measurement for CPU thermal diode or external for temperature sensing. Besides, HWM also integrated Intel PECI interface for new platform temperature reading. For AMD platform, the F71808E provides the power sequence controller function which is selected by register. The F71808E provides flexible features for multi-directional application. For instance, provides GPIO pins which can be programmed by register setting, accurate current mode H/W monitor will be worth in measurement of temperature, provides 3 modes fan speed control mechanism included Auto-Linear, Auto-Stage and Manual Mode for users’ selection. A power saving function which is in order to save the current consumption when the system is in the soft off state is also integrated a power saving function. The power saving function supports that system boot-on not only by pressing the power button but also by the wake-up event. When the system enters the S4/S5 state, F71808E can cut off the VSB power rail which supplies power source to the devices like the LAN chip, the chipset, the SIO, the audio codec, DRAM, and etc. The PC system can be simulated to G3-like state when system enters the S4/S5 states. At the G3-like state, the F71808E consumes the 5VSB power rail only. The integrated two control pins are utilized to turn on or off VSB power rail in the G3-like status. The turned on VSB rail is supplied to a wake up device to fulfil a low power consumption system which supports a wake up function. The F71808E is powered by 3.3V and 5VSB voltage, with the LPC interface in 64-TQFP green package

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