Datasheet

Current Analog/
Interface
Family
PAGE 17
Serial Output Temperature Sensors (continued)
MCP9802 ±0.5 ±1 -55 to +125 +2.7 to +5.5 400
SMbus/I
2
C™ compatible interface with time
out, 0.0625°C to 0.5°C adj. resolution, power-
saving one-shot temperature measurement
5-Pin SOT-23
MCP9803 ±0.5 ±1 -55 to +125 +2.7 to +5.5 400
SMbus/I
2
C™ compatible interface with time
out, 0.0625°C to 0.5°C adj. resolution, power-
saving one-shot temperature measurement,
multi-drop capability
8-Pin MSOP, 8-Pin SOIC
MCP9805 +0.5
+1
(3)
-20 to +125 +3.0 to +3.6 400
JEDEC compatible register set, SMbus/I
2
C™
compatible interface, programmable, shut-
down modes and EVENT output
8-Pin TSSOP, 8-Pin 2x3 DFN
MCP98242 +
0.5
+
1
(3)
-20 to +125 +3.0 to +3.6 400
Same temperature sensor as MCP9805 plus
integrated DDR2 Serial Presence Detect
EEPROM
8-Pin TSSOP, 8-Pin 2x3 DFN
TC77 ±0.5 ±1 -55 to +125 +2.7 to +5.5 400
SPI compatible interface, 0.0625°C
temperature resolution
5-Pin SOT-23A, 8-Pin SOIC
TC72 ±0.5 ±1 -55 to +125 +2.65 to +5.5 400
SPI compatible interface, power-saving one-
shot temperature measurement, 0.25°C
temperature resolution
8-Pin MSOP, 8-Pin 3x3 DFN
TC74 ±0.5 ±2 -40 to +125 +2.7 to +5.5 350
SMbus/I
2
C™ compatible interface, 1°C
temperature resolution
5-Pin SOT-23A, 5-Pin TO-220
TCN75A ±0.5 ±2 -40 to +125 +2.7 to +5.5 500
SMbus/I
2
C™ compatible interface, power-
saving one-shot temperature measurement,
multi-drop capability, 0.0625°C to 0.5°C
adjustable temperature resolution
8-Pin SOIC, 8-Pin MSOP
TCN75 ±0.5 ±2 -55 to +125 +2.7 to +5.5
1,000
(2)
SMbus/I
2
C™ compatible interface, multi-drop
capability, interrupt output, 0.5°C temperature
resolution
8-Pin MSOP, 8-Pin SOIC
THERMAL MANAGEMENT PRODUCTS – Brushless DC Fan Controllers and Fan Fault Detectors
Part # Description
Typical Accuracy
(°C)
Maximum Accuracy
@ 25°C (°C)
Maximum
Temperature Range
(°C)
Vcc Range (V)
Maximum Supply
Current (μA)
Features Packages
TC642 Fan Manager Note 1 Note 1 -40 to +85 +3.0 to +5.5 1,000
FanSense™ Fan Monitor,
minimum fan speed control
8-Pin PDIP, 8-Pin SOIC,
8-Pin MSOP
TC642B Fan Manager Note 1 Note 1 -40 to +85 +3.0 to +5.5 400
FanSense™ Fan Monitor,
minimum fan speed control, fan
auto-restart
8-Pin PDIP, 8-Pin SOIC,
8-Pin MSOP
TC646 Fan Manager Note 1 Note 1 -40 to +85 +3.0 to +5.5 1,000
FanSense™ Fan Monitor,
auto-shutdown
8-Pin PDIP, 8-Pin SOIC,
8-Pin MSOP
NOTE 1: These devices use an external temperature sensor. Accuracy of the total solution is a function of the accuracy of the external sensor.
THERMAL MANAGEMENT PRODUCTS – Temperature Sensors (continued)
Part #
Typical Accuracy
(°C)
Maximum Accuracy
@ 25°C (°C)
Maximum
Temperature Range
(°C)
V
CC Range (V)
Maximum Supply
Current (µA)
Features Packages
NOTE 1: These devices use an external temperature sensor. Accuracy of the total solution is a function of the accuracy of the external sensor.
2: TCN75 idle current is 250 μA. This device also has a Software Shutdown mode that reduces supply current to <1 μA.
3: MCP9805 max. accuracy measured at 85°C.