ADM1034ARQZ-REEL ON Semiconductor

ADM1034 Thermal Monitor and Fan Speed (RPM) Controller The ADM1034 is a dual-channel remote- and local-temperature sensor and fan controller. The remote channels monitor the temperature of two remote thermal diodes, which may be discrete ADM1034 V CC 6 SMBUS ADM1034 ADDRESS 16 SCL SERIAL BUS MANUAL FAN INTERFACE 15 SDASDA SPEED CONTROL ADDRESS REGISTERS POINTER 8 FAN FAULT REGISTER TEMPERATURE ALERT MASK FAULT TO FAN SPEED 14 ALERT STATUS REGISTERS QUEUE LOOK-UP TABLE THERM REGISTER 7 THERM DRIVE1 1 FAN SPEED FAN RESPONSE LIMIT CONTROLLER DRIVE2 3 COMPARATOR VALUE AND THERM PERCENT FAN LIMIT TACH1 2 TACH SIGNAL TIMER SPEED REGISTERS CONDITIONING TACH2 4 COUNTER FAULT QUEUE REF 8 HYSTERESIS LOCATION 13 REGISTERS D1 9 ADC OFFSET D1+ 10 ANALOG SRC REGISTERS MULTIPLEXER BLOCK D2 11 CONVERSION BAND GAP D2+ 12 RATE REGISTER REFERENCE BAND GAP CONFIGURATION TEMPERATURE REGISTERS SENSOR 5 GND Figure 1. Functional Block Diagram Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit Positive Supply Voltage (V ) 0.3, +6.5 V CC Voltage on Any Input or Output Pin except FAN FAULT and LOCATION 0.3 to V + 6.5 V DD Voltage on FAN FAULT (Note 1) V CC Voltage on LOCATION V + 0.3 V CC Input Current at Any Pin 20 mA Maximum Junction Temperature (T ) 150 C J MAX Storage Temperature Range 65 to +150 C Lead Temperature, Soldering (10 s) 300 C IR Reflow Peak Temperature 220 C ESD Rating All Pins 1500 V Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. During powerup the voltage on FAN FAULT should not be higher than V . CC NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.