F75383/F75384
1. General Description
The F75383/F75384 is a temperature sensor IC with alert signal which is specific designed for notebook,
graphic cards etc. An 11-bit analog-to-digital converter (ADC) was built inside F75383/F75384. The
F75383/F75384 can monitor two set of temperature which is very important for the system to work stably and
properly. This chip provides 1 remote temperature sensor and 1 local temperature sensor. The remote
temperature sensor can be performed by CPU thermal diode or transistor 2N3906. The users can set up the
upper and lower limits (alarm thresholds) of all monitored parameters and this chip can also issue warning
messages for system protection when there is something wrong with monitored items.
Through the BIOS or application software, the users can read all the monitored parameters of system all the
time. And a pop-up warning can be also activated when the monitored item was out of the proper/pre-setting
range. The application software could be Fintek's application utility, or other management application software.
The F75383/F75384 is in the package of 8-pin MSOP/SOP and powered by 3.3V.
2. Features
Provide 1 on-chip local and 1 remote temperature sensing
±1 oC accuarcy on remote channel and ±3 oC accuarcy on local channel
±1 oC (+60 oC to +100 oC, remote)
±3 oC (+60 oC to +100 oC, local)
ALERT# output for SMBus alert
THERM# output for over temperature alert or for system shut down
Programmable THERM# limits and THERM# hysteresis
Programmable alert queue
Programmable limited and setting points(alert threshold) for all monitored items
2 wire SMBus interface
3VCC operation and in 8-SOP/8-MSOP green class package
8-MSOP Package – F75383M/F75384M ; 8-SOP Package – F75383S/F75384S
The difference between F75383 and F75384 is SMBus address ID and they have the following
SMBus slave address:
A6
A5
A4
A3
A2
A1
A0
F75383
F75384
1
0
0
1
1
0
0
1
0
0
1
1
0
1
Noted: Patented TW 235231 TWI263778
F75383/F75384
-1-
July, 2007
V0.32P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
