f75385 Feature Integration Technology Inc., f75385 Datasheet - Page 8

• Manufacturer Part Number: f75385
• Description: ?1o C Accuracy Temperature Sensor Ic Datasheet
• Manufacturer: Feature Integration Technology Inc.

6.5 Alert#
6.6 THERM#
Five events can trigger ALERT# to low:
output goes low if the MASK control is disabled. ALERT# signal can be used as an IRQ-like interrupt or as an
SMBALERT. When ALERT# acts as an IRQ-like interrupt, the ALERT# will be de-asserted until the following 2
conditions are matched:
matched:
For more information about SMBALERT, please see SMBus 1.1 specification.
will assert low. The asserted output will be de-asserted until the temperature goes below (THERM Limit – Hysteresis).
The hysteresis default value is 10°C and it can be programmed. Both VT1 and VT2 have their own THERM limits and
(1). VT1(Local) temperature exceeds High Limit
(2). VT1(Local) temperature goes below Low Limit
(3). VT2(Remote) temperature exceeds High Limit
(4). VT2(Remote) temperature goes below Low Limit
(5). VT2(Remote) temperature is Open-circuit.
These five events are wired-NOR together. This means that when one of out-of-limit event occurs, the ALERT#
(1). The abnormal condition is gone
(2). Reading the Status register to clear the status
When ALERT# acts as a SMBALERT, the ALERT# will be de-asserted until the following 3 conditions are
(1). The abnormal condition is gone
(2). Reading the Status register to clear the status
(3). The ALERT# has been serviced by the SMBus master reading the device address.
Either VT1(Local) or VT2(Remote) temperature exceeds the corresponding THERM limit, the THERM# output
Remote-sensor transistor manufacturers
Manufacturer
Panasonic
Philips
100°C
145°C
Model Number
2SB0709 2N3906
PMBT3906
0110 0100
1001 0001
-5-
0.750°C
0.875°C
110 0 0000
111 0 0000
July 2006
V0.21P