Owner manual

MAX6695/MAX6696
Dual Remote/Local Temperature Sensors with
SMBus Serial Interface
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.
V
CC
...........................................................................-0.3V to +6V
DXP1, DXP2................................................-0.3V to (V
CC
+ 0.3V)
DXN ......................................................................-0.3V to +0.8V
SMBCLK, SMBDATA, ALERT ...................................-0.3V to +6V
RESET, STBY, ADD0, ADD1, OT1, OT2 ...................-0.3V to +6V
SMBDATA Current .................................................1mA to 50mA
DXN Current ......................................................................±1mA
Continuous Power Dissipation (T
A
= +70°C)
10-Pin mMAX (derate 6.9mW/°C above +70°C).......555.6mW
16-Pin QSOP (derate 8.3mW/°C above +70°C) .......666.7mW
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
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, T
A
= 0°C to +125°C, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
= +25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage V
CC
3.0 3.6 V
Standby Supply Current SMBus static, ADC in idle state 10 µA
Operating Current Interface inactive, ADC active 0.5 1 mA
Conversion rate = 0.125Hz 35 70
Conversion rate = 1Hz
250
500Average Operating Current
Conversion rate = 4Hz
500 1000
µA
T
RJ
= +25°C to +100°C
(T
A
= +45°C to +85°C)
-1.5 +1.5
T
R J
= 0° C to + 125° C ( T
A
= + 25° C to + 100° C ) -3.0 +3.0
T
RJ
= -40°C to +125°C (T
A
= 0°C to +125°C) -5.0 +5.0
Remote Temperature Error
(Note 1)
T
RJ
= -40°C to +125°C (T
A
= -40°C)
+3.0
°C
T
A
= +45°C to +85°C
-2.0 +2.0
T
A
= +25°C to +100°C
-3.0 +3.0
T
A
= 0°C to +125°C
-4.5 +4.5
Local Temperature Error
T
A
= -40°C to +125°C
+3.0
°C
Power-On Reset Threshold V
CC
, falling edge (Note 2) 1.3
1.45
1.6 V
POR Threshold Hysteresis
500
mV
Undervoltage Lockout Threshold
UVLO Falling edge of V
CC
disables ADC 2.2 2.8
2.95
V
Undervoltage Lockout Hysteresis
90 mV
Channel 1 rate ≤4Hz, channel 2 / local rate
≤2Hz (conversion rate register ≤05h)
112.5 125 137.5
Conversion Time
Channel 1 rate ≥8Hz, channel 2 / local rate
≥4Hz (conversion rate register ≥06h)
56.25 62.5 68.75
ms
High level 80
100
120
Remote-Diode Source Current I
RJ
Low level 8 10 12
µA
ALERT, OT1, OT2
Output Low Sink Current V
OL
= 0.4V 6 mA
Output High Leakage Current V
OH
= 3.6V 1 µA
INPUT PIN, ADD0, ADD1 (MAX6696)
Logic Input Low Voltage V
IL
0.3 V
Logic Input High Voltage V
IH
2.9 V