ADT7470ARQZ Analog Devices Inc, ADT7470ARQZ Datasheet - Page 35

• Manufacturer Part Number: ADT7470ARQZ
• Description: IC SENSOR TEMP FAN CTRLR 16QSOP
• Manufacturer: Analog Devices Inc

Specifications of ADT7470ARQZ

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Fan Speed Control, Register Bank
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 12%
• Supply Current: 500µA
• Supply Voltage Range: 3V To 5.5V
• Sensor Case Style: QSOP
• No. Of Pins: 16
• Msl: MSL 3 - 168 Hours
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Accuracy %: 12%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADT7470EBZ - BOARD EVALUATION FOR ADT7470
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Table 42. Register 0x72. Interrupt Mask Register 1 (Power-On Default = 0x00).
Bit Name
[7] Not in use
[6] R7T
[5] R6T
[4] R5T
[3] R4T
[2] R3T
[1] R2T
[0] R1T
Table 43. Register 0x73. Interrupt Mask Register 2 (Power-On Default = 0x00).
Bit Name
[7] Fan 4
[6] Fan 3
[5] Fan 2
[4] Fan 1
[3] Not in use
[2] R10T
[1] R9T
[0] R8T
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Description
Not in use. Write 0 to this bit.
A 1 masks the Temperature 7 value from generating an interrupt on the SMBALERT
output. The R1T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 6 value from generating an interrupt on the SMBALERT
output. The R2T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 5 value from generating an interrupt on the SMBALERT
output. The R3T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 4 value from generating an interrupt on the SMBALERT
output. The R4T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 3 value from generating an interrupt on the SMBALERT
output. The R5T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 2 value from generating an interrupt on the SMBALERT
output. The R6T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 1 value from generating an interrupt on the SMBALERT
output. The R7T bit is set as normal in the status register for out-of-limit conditions.
Description
A 1 masks the Fan 4 value from generating an interrupt on the SMBALERT output.
The Fan 4 bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Fan 3 value from generating an interrupt on the SMBALERT output.
The Fan 3 bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Fan 2 value from generating an interrupt on the SMBALERT output.
The Fan 2 bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Fan 1 value from generating an interrupt on the SMBALERT output.
The Fan 1 bit is set as normal in the status register for out-of-limit conditions.
Not in use. Write 0 to this bit.
A 1 masks the Temperature 10 value from generating an interrupt on the SMBALERT
output. The R10T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 9 value from generating an interrupt on the SMBALERT
output. The R9T bit is set as normal in the status register for out-of-limit conditions.
A 1 masks the Temperature 8 value from generating an interrupt on the SMBALERT
output. The R8T bit is set as normal in the status register for out-of-limit conditions.
Rev. C | Page 35 of 40
ADT7470