ADT7476 Analog Devices, Inc., ADT7476 Datasheet - Page 65

• Manufacturer Part Number: ADT7476
• Description: Dbcool Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

Table 40. PWMx Minimum Duty Cycle Registers
Register Address
0x64
0x65
0x66
1
Table 41. Register 0x64, Register 0x65, Register 0x66—PWMx Minimum Duty Cycle Registers (Power-On Default = 0x80;
50% duty cycle)
Bit
[7:0]
1
Table 42. T
Register Address
0x67
0x68
0x69
1
2
These registers become read-only when the ADT7476 is in automatic fan control mode.
These registers become read-only when the ADT7476 is in automatic fan control mode.
These are the T
with temperature according to T
These registers become read-only when the Configuration Register 1 LOCK bit is set. Any subsequent attempts to write to these registers fail.
MIN
Name
PWM duty cycle
MIN
Registers
registers for each temperature channel. When the temperature measured exceeds T
1
RANGE
.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
2
Description
PWM1 minimum duty cycle
PWM2 minimum duty cycle
PWM3 minimum duty cycle
Description
These bits define the PWM
0x00 = 0% duty cycle (fan off ).
0x40 = 25% duty cycle.
0x80 = 50% duty cycle.
0xFF = 100% duty cycle (fan full speed).
Description
Remote 1 temperature T
Local temperatue T
Remote 2 temperature T
Rev. B | Page 65 of 72
MIN
MIN
MIN
MIN
MIN
duty cycle for PWMx.
, the appropriate fan runs at minimum speed and increases
Power-On Default
0x80 (50% duty cycle)
0x80 (50% duty cycle)
0x80 (50% duty cycle)
Power-On Default
0x5A (90°C)
0x5A (90°C)
0x5A (90°C)
ADT7476