ADT7463ARQZ-REEL ON Semiconductor

ADT7463 Remote Thermal Controller and Voltage Monitor The ADT7463 controller is a complete systems monitor and multiple PWM fan controller for noise sensitive applications requiring active system cooling. It can monitor 12 V, 5 V, and 2.5 V ADT7463 ADDR SELECT ADDR EN SCL SDA SMBALERT VID5 VID4 VID3 VID SMBUS SERIAL BUS REGISTER ADDRESS VID2 INTERFACE SELECTION VID1 VID0 ADDRESS AUTOMATIC POINTER PWM1 FAN SPEED ACOUSTIC PWM REGISTERS REGISTER CONTROL ENHANCEMENT PWM2 AND CONTROL CONTROLLERS PWM3 DYNAMIC PWM T CONFIGURATION MIN TACH1 CONTROL REGISTERS TACH2 FAN SPEED COUNTER TACH3 TACH4 INTERRUPT MASKING PERFORMANCE MONITORING THERMAL INTERRUPT THERM PROTECTION STATUS REGISTERS V TO ADT7463 CC ADT7463 V CC D1+ LIMIT D1 10 BIT COMPARATORS D2+ INPUT ADC D2 SIGNAL V CONDITIONING CC VALUE AND AND +5V LIMIT IN ANALOG BAND GAP REGISTERS +12V IN MULTIPLEXER REFERENCE +2.5V IN V CCP BAND GAP TEMP. SENSOR GND Figure 1. Functional Block Diagram