Features: The MAX1755/MAX1756 are temperature monitors with ±3°C accuracy, each with a built-in comparator and SMBus™-controlled variable trip threshold. This DAC-programmable threshold allows specific thermal zones and system responses to overtemperature conditions to be adjusted under software control. The MAX1755/ MAX1756 feature serial programmability, low cost, wide supply-voltage range, and a tiny package.
The MAX1755 has a self-clearing thermostat output(OVERT ), and the MAX1756 has a latched interrupt out-put (ALERT ). A variety of slave addresses allow for up to six devices per system (Table 3).
The MAX1755 has 4°C of built-in hysteresis. TheMAX1756 detects both low-to-high and high-to-low tem- perature transitions within an 8°C temperature window. This arrangement supports "windowing" algorithms where the comparison threshold is reprogrammed "on-the-fly."
The MAX1755/MAX1756 are offered in the 6-pin SOT23 package and are specified over the -40°C to +125°Ctemperature range. For other temperature sensors with SMBus interfaces, refer to the MAX1617, MAX1618, MAX1668, and MAX1805 data sheets.
Application Local Temperature Monitoring
Desktop Computers
Notebook Computers
Servers
Workstations
Memory Modules
Multichip Modules
Industrial Control Systems
AutomotivePinout
SpecificationsVCCto GND..............................................................-0.3V to +6V
ADD to GND................................................-0.3V to (VCC+ 0.3V)
SMBCLK, SMBDATA, ALERT , OVERT to GND..............-0.3V to +6V
SMBDATA, ALERT , OVERTCurrent........................-1mA to +50mA
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
Operating Temperature Range (extended)....-40°C to +125°C
Junction Temperature....................................................+150°C
Storage Temperature Range.........................-65°C to +150°C
DescriptionThe MAX1755/MAX1756 are temperature monitors with ±3°C accuracy, each with a built-in comparator and SMBus™-controlled variable trip threshold. This DAC-programmable threshold allows specific thermal zones and system responses to overtemperature conditions to be adjusted under software control. The MAX1755/ MAX1756 feature serial programmability, low cost, wide supply-voltage range, and a tiny package.
The MAX1755 has a self-clearing thermostat output(OVERT), and the MAX1756 has a latched interrupt out-put (ALERT). A variety of slave addresses allow for up to six devices per system (Table 3).
The MAX1755 has 4°C of built-in hysteresis. TheMAX1756 detects both low-to-high and high-to-low tem- perature transitions within an 8°C temperature window. This arrangement supports "windowing" algorithms where the comparison threshold is reprogrammed "on-the-fly."
The MAX1755/MAX1756 are offered in the 6-pin SOT23 package and are specified over the -40°C to +125°Ctemperature range. For other temperature sensors with SMBus interfaces, refer to the MAX1617, MAX1618, MAX1668, and MAX1805 data sheets.
MAX1755 Data Sheet
