Dual-Output Remote-Junction
Temperature Switches
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
VDD, TLOW, THIGH.....................................................-0.3V to +6V
DXN .......................................................................-0.3V to +0.8V
All Other Pins..............................................-0.3V to (VDD + 0.3V)
Input Current .........................................................................5mA
Output Current ....................................................................20mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS
(VDD = 3.0V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDD = 3.3V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITION
MIN TYP MAX UNITS
Power-Supply Range
Average Supply Current
Supply Current During
Conversion
VDD
IDD
3.0 5.5
200 500
400 800
V
µA
µA
Power-On Reset Threshold
POR Threshold Hysteresis
POR VDD falling edge
1.0 1.5 2.0
V
50 mV
Temperature Threshold
Accuracy
Temperature Threshold
Hysteresis
∆TTH
THYST
VDD = 3.3V, TA = +25°C, TRJ = 0°C to +125°C
(Note 2)
TA = 0°C to +100°C, TRJ = 0°C to +125°C
-1.5
+1.5
2.0
5.0
°C
°C
Supply Sensitivity of Temperature
Threshold
TA = +25°C, TRJ = 0°C to +125°C,
VDD = 3.0V to 5.5V
0.6 °C/V
Output Voltage High
VOH ISOURCE = 1mA, MAX6685 TLOW only
VDD -
0.2
V
Output Voltage Low
Logic-Low Input Voltage
Logic-High Input Voltage
Input Current
VOL ISINK = 1mA
VIL S1, S2
VIH S1, S2
S1, S2
0.2 V
0.4 V
1.8 V
10 µA
Open-Drain Output Leakage
Current
VOUT = 5.5V, TLOW and THIGH
1 µA
Conversion Time
0.09 0.11 0.13
s
Sample Period
0.35 0.45 0.55
s
Current Sourcing for External
Diode
High level
Low level
80 100 120
µA
8 10 12
Note 1: All parameters are tested at +25°C. Temperature specifications over a range of -40°C to +125°C are guaranteed by design.
Note 2: TRJ is the temperature of the remote-sensing diode junction.
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