ADT7462ACPZ-REEL ON Semiconductor, ADT7462ACPZ-REEL Datasheet - Page 67

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

Specifications of ADT7462ACPZ-REEL

• 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
• Number Of Voltages Monitored: 1
• Monitored Voltage: 0.9 V to 12 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Supply Current (typ): 4000 uA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. POR = 0x37, Lock = Y, SW Reset = Y.
1. POR = 0x00, Lock = Y, SW Reset = Y.
1. POR = 0x00, Lock = Y, SW Reset = Y.
Table 51. Register 0x19 — Voltage Attenuator Configuration 2
Table 52. Register 0x1A — Enhanced Acoustics Register 1
Table 53. Register 0x1B — Enhanced Acoustics Register 2
[7:6]
[4:2]
[7:5]
[4:2]
[7:5]
Bit
Bit
Bit
0
1
2
3
4
5
0
1
0
1
Attenuator Pin 23
Attenuator Pin 24
Attenuator Pin 25
Attenuator Pin 28
Attenuator Pin 29
Ramp Rate 1
Ramp Rate 2
Ramp Rate 3
Ramp Rate 4
Mnemonic
Mnemonic
Reserved
Reserved
Name
En1
En2
En3
En4
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
Time Slot Increase
Time Slot Increase
Setting this bit to 1 enables the enhanced acoustics mode for PWM3; 0 disables it. Default = 0.
Setting this bit to 1 enables the enhanced acoustics mode for PWM4; 0 disables it. Default = 0.
These bits set the ramp rate for the enhanced acoustics mode for PWM3. Default = 000.
000 = 1
010 = 3
100 = 8
110 = 24
These bits set the ramp rate for the enhanced acoustics mode for PWM4. Default = 000.
000 = 1
010 = 3
100 = 8
110 = 24
Time Slot Increase
Time Slot Increase
Setting this bit to 0 removes the attenuators for Pin 23. Default = 1 = attenuators enabled.
Setting this bit to 0 removes the attenuators for Pin 24. Default = 1 = attenuators enabled.
Setting this bit to 0 removes the attenuators for Pin 25. Default = 1 = attenuators enabled.
Reserved for future use. Default = 0.
Setting this bit to 0 removes the attenuators for Pin 28. Default = 1 = attenuators enabled.
Setting this bit to 0 removes the attenuators for Pin 29. Default = 1 = attenuators enabled.
Reserved for future use. Default = 00.
Setting this bit to 1 enables the enhanced acoustics mode for PWM1; 0 disables it. Default = 0.
Setting this bit to 1 enables the enhanced acoustics mode for PWM2; 0 disables it. Default = 0.
These bits set the ramp rate for the enhanced acoustics mode for PWM1. Default = 000.
000 = 1
010 = 3
100 = 8
110 = 24
These bits set the ramp rate for the enhanced acoustics mode for PWM2. Default = 000.
000 = 1
010 = 3
100 = 8
110 = 24
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001 = 2
011 = 5
101 = 12
111 = 48
001 = 2
011 = 5
101 = 12
111 = 48
001 = 2
011 = 5
101 = 12
111 = 48
001 = 2
011 = 5
101 = 12
111 = 48
67
(Note 1)
Time for 33% to 100%
Time for 33% to 100%
Time for 33% to 100%
Time for 33% to 100%
35 sec
11.8 sec
4.4 sec
1.6 sec
35 sec
11.8 sec
4.4 sec
1.6 sec
37.5 sec
12.5 sec
4.7 sec
1.6 sec
35 sec
11.8 sec
4.4 sec
1.6 sec
Description
Description
Description
17.6 sec
7.0 sec
3.0 sec
0.8 sec
17.6 sec
7.0 sec
3.0 sec
0.8 sec
18.8 sec
7.5 sec
3.1 sec
0.8 sec
17.6 sec
7.0 sec
3.0 sec
0.8 sec