ADT7462ACPZ-REEL7 ON Semiconductor, ADT7462ACPZ-REEL7 Datasheet - Page 75

• Manufacturer Part Number: ADT7462ACPZ-REEL7
• Description: IC TEMP/VOLT MONITOR 32-LFCSP
• Manufacturer: ON Semiconductor

Specifications of ADT7462ACPZ-REEL7

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• 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: 32-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. POR = 0x40, Lock = Y, SW Reset = Y.
1. Lock = N, SW Reset = N.
Table 82. Register 0x60, Register 61, Register 62, Register 63 — Local, Remote 1, Remote 2, and Remote 3
T
Table 83. Register 0x64 — Operating Point Hysteresis
Table 84. Voltage Limit Registers
RANGE
[3:0]
[7:4]
[3:0]
[7:4]
Register Address
Bit
Bit
/Hysteresis
0x6A
0x6B
0x6C
0x6D
0x6E
0x68
0x69
0x6F
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
Operating Point
Hysteresis
Hysteresis
Reserved
Range
Name
Name
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
+3.3V high limit.
Pin 23 voltage high limit.
Pin 24 voltage high limit.
Pin 25 voltage high limit.
Pin 26 voltage high limit.
+12V1 voltage low limit.
+12V2 voltage low limit.
+12V3 voltage low limit.
+3.3V low limit.
+5V low limit.
Pin 23 voltage low limit.
Pin 24 voltage low limit.
Pin 25 voltage low limit.
Pin 26 voltage low limit.
+1.5V1 (ICH) voltage low limit.
+1.5V2 (3GIO) voltage low limit.
(Note 1)
These four bits set the hysteresis in the automatic fan speed control loop and in the dynamic
T
These four bits set the T
respect to temperature in the automatic fan speed control loop.
Reserved for future use.
These four bits set the operating point hysteresis for the dynamic T
1 LSB = 1°C.
MIN
0000 = 0°C
0010 = 2°C
0100 = 4°C (default)
0110 = 6°C
1000 = 8°C
1010 = 10°C
1100 = 12°C
1110 = 14°C
0000 = 2°C
0010 = 3.3°C
0100 = 5°C
0110 = 8°C
1000 = 13.3°C
1010 = 20°C
1100 = 32°C (default)
1110 = 53.3°C
0000 = 0°C
0010 = 2°C
0100 = 4°C (default)
0110 = 6°C
1000 = 8°C
1010 = 10°C
1100 = 12°C
1110 = 14°C
control loop, 1 LSB = 1°C.
http://onsemi.com
Description
(Note 1)
RANGE
75
value, that is, the slope or rate of change of fan speed with
0001 = 1°C
0011 = 3°C
0101 = 5°C
0111 = 7°C
1001 = 9°C
1011 = 11°C
1101 = 13°C
1111 = 15°C
0001 = 2.5°C
0011 = 4°C
0101 = 6.7°C
0111 = 10°C
1001 = 16°C
1011 = 26.7°C
1101 = 40°C
1111 = 80°C
0001 = 1°C
0011 = 3°C
0101 = 5°C
0111 = 7°C
1001 = 9°C
1011 = 11°C
1101 = 13°C
1111 = 15°C
Description
Description
MIN
control loop,
POR Default
0xFF
0xFF
0xFF
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x20
0x00
0x00
0x80
0x00
0x00