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MAX6648 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. MAX6648
Description  Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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Precision SMBus-Compatible Remote/Local
Temperature Sensors with Overtemperature Alarms
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
All Voltages Referenced to GND
VCC ...........................................................................-0.3V to +6V
DXP.............................................................-0.3V to (VCC + 0.3V)
DXN .......................................................................-0.3V to +0.8V
SCLK, SDA, ALERT, OVERT.....................................-0.3V to +6V
SDA, ALERT, OVERT Current .............................-1mA to +50mA
DXN Current .......................................................................±1mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 5.9mW/°C above +70°C) .............471mW
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
ESD Protection (all pins, Human Body Model) ................±2000V
Junction Temperature ......................................................+150°C
Operating Temperature Range .........................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VCC = 3.0V to 5.5V, TA = -55°C to +125°C, unless otherwise specified. Typical values are at VCC = 3.3V and TA = +85°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
VCC
3.0
5.5
V
0.125
°C
Temperature Resolution
10
Bits
VCC = 3.3V,
TA = +85°C
TRJ = +25°C to +125°C
-0.8
+0.8
TRJ = +60°C to +100°C
-1.0
+1.0
VCC = 3.3V,
+60°C
≤ TA
+100°C
TRJ = 0°C to +125°C
-1.6
+1.6
Remote Temperature Error
VCC = 3.3V, +0°C
≤ TA ≤ +100°C
TRJ = 0°C to +125°C
-3.0
+3.0
°C
TA = +60°C to +100°C
-2.0
+2.0
Local Temperature Error
VCC = 3.3V
TA = 0°C to +125°C
-3.0
+3.0
°C
Supply Sensitivity of Temperature
Error
±0.2
°C/V
Undervoltage Lockout (UVLO)
Threshold
UVLO
Falling edge of VCC disables ADC
2.4
2.7
2.95
V
UVLO Hysteresis
90
mV
Power-On-Reset (POR) Threshold
VCC falling edge
2.0
V
POR Threshold Hysteresis
90
mV
Standby Supply Current
SMBus static
3.5
12
µA
Operating Current
During conversion
0.45
0.8
mA
0.25 conversions per second
40
80
Average Operating Current
2 conversions per second
250
400
µA
Conversion Time
tCONV
From stop bit to conversion completion
95
125
156
ms
Conversion Time Error
-25
+25
%
DXP and DXN Leakage Current
Standby mode
100
nA
High level
80
100
120
Remote-Diode Source Current
IRJ
Low level
8
10
12
µA




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