Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
Revision 1.0 (07-11-13) 10 SMSC EMC1182
DATASHEET
Chapter 3 Electrical Specifications
3.1 Absolute Maximum Ratings
Note: Stresses at or above those listed could cause permanent damage to the device. This is a stress
rating only and functional operation of the device at any other condition above those indicated
in the operation sections of this specification is not implied.
Note 3.1 For the 5V tolerant pins that have a pull-up resistor (SMCLK, SMDATA, THERM
, and
ALERT
/ THERM2), the pull-up voltage must not exceed 3.6V when the device is
unpowered.
3.2 Electrical Specifications
Table 3.1 Absolute Maximum Ratings
DESCRIPTION RATING UNIT
Supply Voltage (V
DD
) -0.3 to 4.0 V
Voltage on 5V tolerant pins (V
5VT_pin
) -0.3 to 5.5 V
Voltage on 5V tolerant pins (|V
5VT_pin
- V
DD
|) (see Note 3.1)0 to 3.6 V
Voltage on any other pin to Ground -0.3 to V
DD
+0.3 V
Operating Temperature Range -40 to +125 °C
Storage Temperature Range -55 to +150 °C
Lead Temperature Range Refer to JEDEC Spec. J-STD-020
Package Thermal Characteristics for TDFN-8
Thermal Resistance (θ
j-a
)89°C/W
ESD Rating, All pins HBM 2000 V
Table 3.2 Electrical Specifications
V
DD
= 3.0V to 3.6V, T
A
= -40°C to 125°C, all typical values at T
A
= 27°C unless otherwise noted.
CHARACTERISTIC SYMBOL MIN TYP MAX UNITS CONDITIONS
DC Power
Supply Voltage V
DD
3.0 3.3 3.6 V
Supply Current I
DD
200 410 µA 0.0625 conversion / sec, dynamic
averaging disabled
215 425 µA 1 conversion / sec, dynamic
averaging disabled
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
SMSC EMC1182 11 Revision 1.0 (07-11-13)
DATASHEET
325 465 µA 4 conversions / sec, dynamic
averaging disabled
890 1050 µA 4 conversions / sec, dynamic
averaging enabled
1120 µA > 16 conversions / sec, dynamic
averaging enabled
Standby Supply Current I
DD
170 230 µA Device in Standby mode, no SMBus
communications, ALERT and
THERM pins not asserted.
Internal Temperature Monitor
Temperature Accuracy ±0.25 ±1 °C -5°C < T
A
< 100°C
±2 °C -40°C < T
A
< 125°C
Temperature Resolution 0.125 °C
External Temperature Monitor
Temperature Accuracy ±0.25 ±1 °C +20°C < T
DIODE
< +110°C
0°C < T
A
< 100°C
±0.5 ±2 °C -40°C < T
DIODE
< 127°C
Temperature Resolution 0.125 °C
Conversion Time all
Channels
t
CONV
190 ms default settings
Capacitive Filter C
FILTER
2.2 2.7 nF Connected across external diode
ALERT
/ THERM2 and THERM pins
Output Low Voltage V
OL
0.4 V I
SINK
= 8mA
Leakage Current I
LEAK
±5 µA ALERT / THERM2 and SYS_SHDN
pins
Device powered or unpowered
T
A
< 85°C
pull-up voltage < 3.6V
Table 3.2 Electrical Specifications (continued)
V
DD
= 3.0V to 3.6V, T
A
= -40°C to 125°C, all typical values at T
A
= 27°C unless otherwise noted.
CHARACTERISTIC SYMBOL MIN TYP MAX UNITS CONDITIONS
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
Revision 1.0 (07-11-13) 12 SMSC EMC1182
DATASHEET
3.3 SMBus Electrical Characteristics
Table 3.3 SMBus Electrical Specifications
V
DD
= 3.0 to 3.6V, T
A
= -40°C to 125°C, all typical values are at T
A
= 27°C unless otherwise noted.
CHARACTERISTIC SYMBOL MIN TYP MAX UNITS CONDITIONS
SMBus Interface
Input High Voltage V
IH
1.4 V
DD
V 5V Tolerant. Voltage threshold
based on 1.8V operation
Input Low Voltage V
IL
-0.3 0.8 V 5V Tolerant. Voltage threshold
based on 1.8V operation
Leakage Current I
LEAK
±5 µA Powered or unpowered
TA < 85°C
Hysteresis 50 mV
Input Capacitance C
IN
5pF
Output Low Sink Current I
OL
8.2 15 mA SMDATA = 0.4V
SMBus Timing
Clock Frequency f
SMB
10 400 kHz
Spike Suppression t
SP
50 ns
Bus Free Time Stop to
Start
t
BUF
1.3 µs
Hold Time: Start t
HD:STA
0.6 µs
Setup Time: Start t
SU:STA
0.6 µs
Setup Time: Stop t
SU:STO
0.6 µs
Data Hold Time t
HD:DAT
0 µs When transmitting to the master
Data Hold Time t
HD:DAT
0.3 µs When receiving from the master
Data Setup Time t
SU:DAT
100 ns
Clock Low Period t
LOW
1.3 µs
Clock High Period t
HIGH
0.6 µs
Clock/Data Fall time t
FALL
300 ns Min = 20+0.1C
LOAD
ns
Clock/Data Rise time t
RISE
300 ns Min = 20+0.1C
LOAD
ns
Capacitive Load C
LOAD
400 pF per bus line
Timeout t
TIMEOUT
25 35 ms Disabled by default

EMC1182-1-AIA-TR

Mfr. #:
Manufacturer:
Microchip Technology
Description:
Board Mount Temperature Sensors 1.8V SMBus Dual Tmp Sensor /w Alerts
Lifecycle:
New from this manufacturer.
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