H/W Monitor for Graphic Card, NB and IA

W83L786NG is specifically designed for the graphic cards and bare bone / mini systems, and can be used to monitor several critical hardware parameters of the system, including voltage, fan speed, and temperature, which are very important for the system to work stably and properly.

W83L786NG has 3 analog voltage inputs, 2 fan tachometer inputs, and 2 remote temperature sensor inputs. Power-on fan_set configuration offers the function to choose one of the four duty cycles, 100%, 81%, 62%, 43%, as initial fan speed. 2 sets of PWM (Pulse Width Modulation) / DC (Direct Current) fan outputs are provided for Nuvoton`s SMART FAN^TM control – “Thermal Cruise^TM” mode and “SMART FAN^TM II“ mode. An 8-bit analog-to-digital converter (ADC) is built inside W83L786NG. As for warning mechanism, W83L786NG provides four pure hardware event pins for independent warning signals. All threshold values could be set for system protection without any timing delay. One bit power-on address selection is used to decide the address of the W83L786NG over I²C serial bus interface. W83L786NG also provides up to 7 optional multifunctional GPIO. Also, Watch Dog Timer could set up reset time flexibly. W83L786NG is powered by 3.3V, and is 20-pin SSOP package

• Support 3 voltage monitor inputs
• Support 2 temperature sensor inputs supporting current mode temperature measurement method
• Support 2 fan speed tachometer inputs
• Support 2 fan speed control output; provide PWM/DC fan control mode; support Nuvoton SMART FANTM I&II
• Support INT, Temperature_Fault, Voltage_Fault, Fan_Fault alarm event
• Support up to 7 GPIO
• Support I²C interface
• 3.3V operation voltage