ADT7462ACPZ-5RL7 ON Semiconductor, ADT7462ACPZ-5RL7 Datasheet - Page 70

• Manufacturer Part Number: ADT7462ACPZ-5RL7
• Description: IC TEMP/VOLT MONITOR 32-LFCSP
• Manufacturer: ON Semiconductor

Specifications of ADT7462ACPZ-5RL7

• 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
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADT7462ACPZ-500RL7; ADT7462ACPZ-500RL7; ADT7462ACPZ-500RL7TR; ADT7462ACPZ-500RL7TR; ADT7462ACPZ-5RL7TR

1. POR = 0x90, Lock = Y, SW Reset = Y.
1. Lock = Y, SW Reset = Y.
1. POR = 0xC0, Lock = Y, SW Reset = Y.
1. POR = 0x00, Lock = N, SW Reset = Y.
Table 60. Register 0x26 — PWM3, PWM4 Frequency
Table 61. Minimum PWMx Duty Cycle
Table 62. Register 0x2C — Maximum PWM Duty Cycle
Table 63. Register 0x30 — Thermal Mask Register 1
[4:2]
[7:5]
[7:0]
Register Address
Bit
Bit
Bit
0
1
0
1
2
3
4
5
6
7
0x2A
0x2B
0x28
0x29
Maximum PWM
Remote 1 Temp
Remote 2 Temp
Remote 3 Temp
Diode 1 Error
Diode 2 Error
Diode 3 Error
Local Temp
Low Freq 3
Low Freq 4
Duty Cycle
Reserved
Name
Name
Name
Min 3
Min 4
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
Minimum PWM1 duty cycle
Minimum PWM2 duty cycle
Minimum PWM3 duty cycle
Minimum PWM4 duty cycle
When the ADT7462 is in automatic fan control mode, this bit defines whether PWM3 is off
(0% duty cycle) or at minimum PWM3 duty cycle when the controlling temperature is below its
T
0 = 0% duty cycle below T
T
When the ADT7462 is in automatic fan control mode, this bit defines whether PWM4 is off
(0% duty cycle) or at minimum PWM4 duty cycle when the controlling temperature is below its
T
0 = 0% duty cycle below T
T
These bits set the frequency of PWM3 when configured in low frequency mode.
These bits set the frequency of PWM4 when configured in low frequency mode.
This register sets the maximum % duty cycle output in automatic fan speed control mode for all
four PWM outputs.
Reserved for future use.
1 masks ALERTs for an out−of−limit condition on the local temperature channel.
1 masks ALERTs for an out−of−limit condition on the Remote 1 temperature channel.
1 masks ALERTs for an out−of−limit condition on the Remote 2 temperature channel.
1 masks ALERTs for an out−of−limit condition on the Remote 3 temperature channel.
1 masks ALERTs for an open or short condition on the Remote 1 channel.
1 masks ALERTs for an open or short condition on the Remote 2 channel.
1 masks ALERTs for an open or short condition on the Remote 3 channel.
MIN
MIN
MIN
MIN
000 = 11 Hz
010 = 22.1 Hz
100 = 35.3 Hz (default)
110 = 58.8 Hz
000 = 11 Hz
010 = 22.1 Hz
100 = 35.3 Hz (default)
110 = 58.8 Hz
(Note 1)
− hysteresis value.
− hysteresis.
− hysteresis value.
− hysteresis.
http://onsemi.com
Description
(Note 1)
(Note 1)
(Note 1)
70
MIN
MIN
− hysteresis (default); 1 = minimum PWM3 duty cycle below
− hysteresis (default); 1 = minimum PWM4 duty cycle below
001 = 14.7 Hz
011 = 29.4 Hz
101 = 44.1 Hz
111 = 88.2 Hz
001 = 14.7 Hz
011 = 29.4 Hz
101 = 44.1 Hz
111 = 88.2 Hz
Description
Description
Description
POR Default
0x80
0x80
0x80
0x80