NCT6627UD Nuvoton Technology Corporation of America, NCT6627UD Datasheet - Page 59

• Manufacturer Part Number: NCT6627UD
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of NCT6627UD

• Lead Free Status / Rohs Status: Supplier Unconfirmed

If the current temperature falls lower than (Target Temperature 1 － Temperature Tolerance), the fan speed is
reduced one step again, and the target temperature shifts to (Target Temperature 1 － Temperature Tolerance),
or Target Temperature 2. This process repeats whenever the current temperature is lower than (Target
Temperature X － Temperature Tolerance) or until the fan speed reaches its minimum speed.
(5) If the current temperature is always lower than (Target Temperature X － Temperature Tolerance), the fan
The following tables show the current temperature, fan output value and the relative control registers at S
F
AN
speed decreases slowly to zero or to a specified stop value. The stop value is enabled by register Bank0, 12h,
bit 4 and the stop value is specified in Bank0, Index 09h. The fan remains at the stop value for the period of
time defined in Bank0, Index 0Dh.
TM
III mode.
Current CPU
Temperature
Current
CPUFANOUT
Output Value
DESCRIPTION
Step
Step
Max. Fan Output
Max. Fan Output
Min. Fan Output
Min. Fan Output
(DC / PWM)
(DC / PWM)
Fan output
Fan output
Output Value
Output Value
Figure 7-16 S
Fan Initial
Fan Initial
Bank1, Index
50h ,51h
Bank0, Index
03h
Current Temp. < Target Temp. - Tol .
Current Temp. < Target Temp. - Tol .
REGISTER
ADDRESS
Table 7-9 Display Register – at S
MART
F
AN
Tar 3
Tar 3
TM
Tolerance
Tolerance
CPUTIN Temperature
Sensor
CPUFANOUT Output
Value Select
III Mechanism (Current Temp. < Target Temp. – Tol.)
Tar 2
Tar 2
REGISTER NAME
Tar 1
Tar 1
Tar
Tar
-50-
MART
W83627UHG/NCT6627UD
F
Read only
80h / FFh by
strapping
ATTRIBUTE
AN
TM
Publication Release Date: October 26, 2010
III Mode
8 MSB, 1°C bit 7,
0.5 °C
Bits 7-0
CPUFANOUT Value
Temperature
Temperature
BIT DATA
Revision 1.7
MART