MAX6581
±1°C Accurate 8-Channel Temperature Sensor
Absolute Maximum Ratings
(All voltages referenced to GND.)
VCC, SMBCLK, SMBDATA, ALERT,
OVERT, STBY to GND.........................................-0.3V to +4V
DXP_ to GND............................................ -0.3V to (VCC + 0.3V)
DXN_ to GND............................................ -0.3V to (VCC + 0.3V)
SMBDATA, ALERT, OVERT Current.................. -1mA to +50mA
DXN_ Current......................................................................±1mA
Continuous Power Dissipation (TA = +70°C)
TQFN (derate 27.8mW/°C above +70°C)..................2222mW
ESD Protection (All Pins, Human Body Model)...................±2kV
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)........................................ +260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Thermal Characteristics (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance (θJA) .......36.0°C/W
Junction-to-Case Thermal Resistance (θJC)...............3.0°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VCC = +3.0V to +3.6V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Note 2)
PARAMETER
Supply Voltage
Standby Supply Current
Operating Current
Temperature Resolution
3-Sigma Temperature Accuracy
(Remote Channels 1–7)
3-Sigma Temperature Accuracy
(Local)
6-Sigma Temperature Accuracy
(Remote Channels 1–7)
6-Sigma Temperature Accuracy
(Local)
SYMBOL
VCC
ISS
ICC1
ICC2
CONDITIONS
SMBus static
During conversion, RC off
During conversion, RC on
VCC = 3.3V
VCC = 3.3V
VCC = 3.3V
VCC = 3.3V
TA = +30°C to +85°C,
TRJ = +60°C to +100°C
TA, TRJ = -40°C to +125°C
TA = +30°C to +85°C,
TRJ = +100°C to +150°C
TA = +30°C to +85°C
TA = -40°C to +125°C
TA = 0°C to +150°C
TA = +30°C to +85°C,
TRJ = +60°C to +100°C
TA, TRJ = -40°C to +125°C
TA = +30°C to +85°C,
TRJ = +100°C to +125°C
TA = +30°C to +85°C
TA = -40°C to +125°C
TA = 0°C to +150°C
MIN
3.0
-0.85
-1.2
-2.5
-1
-2
-3
-1
-2
-2.75
-1.5
-2.5
-3.5
TYP
4
500
550
11
0.125
MAX
3.6
15
600
650
+0.85
+1.2
+2.5
+1
+2
+3
+1
+2
+2.75
+1.5
+2.5
+3.5
UNITS
V
µA
µA
Bits
°C
°C
°C
°C
°C
www.maximintegrated.com
Maxim Integrated │ 2
