f75386 Feature Integration Technology Inc., f75386 Datasheet - Page 14

• Manufacturer Part Number: f75386
• Description: Dual ?1o C Accuracy Temperature Sensor Ic With Fan Speed Control
• Manufacturer: Feature Integration Technology Inc.

F75386
7.2
Power on default <7:0> = 00h
T1 = On-chip temperature sensor (Local)
7.3
Power on default <7:0> = 00h
T1 = On-chip temperature sensor (Local)
Bit
4~3
7
6
5
4
3
2
1
0
2
1
0
Status Register 1 Index 02h
Status Register 2 Index 18h
ALERT_TACH_SEL
ALERT_QUEUE
T2_THERM_STS
T2_OPEN_STS
T1_HIGH_STS
T2_HIGH_STS
T1_LOW_STS
T2_LOW_STS
FAN_ALARM
ADC_BUSY
Reserved
Reserved
Name
Attribute
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
T2 = Pin 2 external temperature sensor (Remote)
Set to 0, the F75386’s PWM output continues to output the control signal while in
standby. (when bit 6 is set to 1)
These bits are unused and always set to 0
Set to 1, pin6 acts as fan Tachometer input.
Set to 0, pin6 acts as ALERT output.
This bit is unused and always set to 0
Set to 1, an ALERT# will be generated if consecutive abnormal events occur three times.
Set to 0, an ALERT# will be generated if any abnormal event occurs.
T3= Pin 3 external temperature sensor (Remote)
Set to 1, ADC is converting.
Set to 1, T1 temperature exceeds high limit.
Set to 0, T1 temperature does not exceed high limit.
Set to 1, T1 temperature goes below low limit.
Set to 0, T1 temperature does not go below low limit.
Set to 1, T2 temperature exceeds high limit.
Set to 0, T2 temperature does not exceed high limit.
Set to 1, T2 temperature goes below low limit.
Set to 0, T2 temperature does not go below low limit.
Set to 1, T2 is open-circuit
Set to 0, T2 is not open-circuit
Set to 1, T2 temperature exceeds its thermal limit.
Set to 0, T2 temperature does not exceed its thermal limit.
Set to 1, FAN count is higher than the FAN limit value
Set to 0, FAN count is equal or lower than the FAN limit value.
-10-
Description
F75386
July,
V0.27P
2007