MAX6649YMUA 查看數據表（PDF） - Maxim Integrated
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MAX6649YMUA
Maxim Integrated
MAX6649YMUA Datasheet PDF : 16 Pages
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+145°C Precision SMBus-Compatible Remote/
Local Sensors with Overtemperature Alarms
ABSOLUTE MAXIMUM RATINGS
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)
μMAX (derate 4.8mW/°C above +70°C) ...................387.8mW
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
Soldering Temperature (reflow) .......................................+260°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
(VCC = 3.0V to 5.5V, TA = -55°C to +125°C, unless otherwise specified. Typical values are at VCC = 3.3V and TA = +100°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
VCC
Temperature Resolution
3.0
0.125
11
5.5
V
°C
Bits
VCC = 3.3V, TA = +100°C,
TRJ = +60°C to +145°C
-1.0
+1.0
Remote Temperature Error
VCC = 3.3V, TA = +60°C to +100°C,
-1.6
TRJ = +25°C to +145°C
+1.6
°C
Local Temperature Error
Supply Sensitivity of
Temperature Error
VCC = 3.3V, TA = +0°C to +100°C,
-3.2
TRJ = +0°C to +145°C
VCC = 3.3V
TA = +60°C to +100°C -2.0
TA = 0°C to +125°C
-3.0
±0.2
+3.2
+2.0
+3.0
°C
°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
POR Threshold Hysteresis
Standby Supply Current
Operating Current
Average Operating Current
Conversion Time
Conversion Time Error
DXP and DXN Leakage Current
Remote-Diode Source Current
tCONV
IRJ
VCC falling edge
SMBus static
During conversion
0.25 conversions per second
2 conversions per second
From stop bit to conversion completion
Standby mode
High level
Low level
2.0
V
90
mV
3
12
μA
0.08
mA
40
80
μA
250 400
95
125 156
ms
-25
+25
%
100
nA
80
100 120
μA
8
10
12
2
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