MAX6633/MAX6634/MAX6635
12-Bit Plus Sign Temperature Sensors with
SMBus/I
2
C-Compatible Serial Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +5.5V, T
A
= -55°C to +125°C, unless otherwise noted. Typical values are V
CC
= +3.3V, T
A
= +25°C, unless other-
wise noted.)
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.
V
CC
, SDA, SCL......................................................-0.3V to +6.0V
All Other Pins ................................................-0.3V to V
CC
+0.3V
SDA, ALERT, OVERT Current .............................-1mA to +50mA
ESD Protection (Human Body Model)................................2000V
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
Junction Temperature......................................................+150°C
Operating Temperature Range .........................-55°C to +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Supply Range V
CC
3.0 5.5 V
0°C ≤ T
A
= ≤ +50°C, V
CC
= +3.3V -1.0 ±0.4 +1.0
-20°C ≤ T
A
= ≤ +85°C, V
CC
= +3.3V -1.5 ±0.6 +1.5
-40°C ≤ T
A
= ≤ 125°C, V
CC
= +3.3V -2.5 ±1.0 +2.5
T
A
= -55°C, V
CC
= +3.3V -2.8 ±1.5 +2.8
Accuracy (Note 1)
T
A
= +150°C, V
CC
= +3.3V ±2.5
°C
Power-Supply Rejection Ratio PSRR 0.2 0.5 °C/V
POR Threshold Hysteresis 90 mV
V
CC
= +3.0V, SMBus inactive 12 20
Supply Current in Shutdown
V
CC
= +5.5V, SMBus inactive 20 30
µA
V
CC
= +3.0V, SMBus inactive 150
Average Operating Current
V
CC
= +5.5V, SMBus inactive 200
µA
V
CC
= +3.0V, SMBus inactive 270 350
Peak Operating Current (Note 2)
V
CC
= +5.5V, SMBus inactive 350 700
µA
Conversion Rate 1.4 2 2.4 Hz
DIGITAL INTERFACE
Logic Input Low Voltage V
IL
V
CC
= +3.0V to +5.5V 0.65 V
V
CC
= +3V 2.2
Logic Input High
Voltage
V
IH
V
CC
= +5.5V 2.4
V
Input Leakage Current I
I_LEAK
V
IN
= GND or V
CC
±1µA
Output Low Sink Current I
OL
V
OL
= 0.6V (SMBDATA,
ALERT, OVERT)
6mA
Output Leakage Current I
O_LEAK
ALERT, OVERT at V
CC
±1µA
Input Capacitance C
IN
5pF
(12 stránky)
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