The SGM449 can detect the temperature from -55℃ to +150℃ and its operation voltage level is from 2.7V to 10V. For the output voltage stage, the DC offset voltage is equal to 600mV at 0℃ and it changes linearly with 10mV/℃. The beneficial of the positive offset voltage is that it can allow the SGM449 to read negative temperature accurately. For measuring the temperature range from -55 ℃ to +150 ℃ , the corresponding nominal output voltage range is from 50mV to 2.1V. The SGM449 is calibrated to achieve the accuracy of ±1 ℃ (MAX) at +25 ℃ and ±2 ℃ (MAX) at full measureable range of temperature.
The SGM449 can simplify the required external circuit for the measurement of negative temperature through its excellent linearity, positive offset voltage and calibration of factory. A class-AB output driver provides a strong 500μA maximum output to drive capacitive loads up to 2000pF and is designed to directly interface to analog-to-digital converter sample and hold inputs. The quiescent current of the device is 26µA (TYP), which means that its temperature caused by the 26µA quiescent current is within 0.1 ℃ in still air. The shutdown capability which is inside the SGM449 allows it to be powered by MCU directly as its low consumption of power.
The SGM449 is available in a Green SOT-23 package and specified over the extended -55 ℃ to +150 ℃ temperature range.
● 2.7V to 10V Supply Voltage Range
● Temperature Accuracy:
+25℃: ±1℃ (MAX)
-55℃ to +150℃: ±2℃ (MAX)
● Offset Output Voltage: 600mV at 0℃ (TYP)
● Calibrated Linear Scale Factor: 10mV/℃
● Current Drain at +25℃: 26μA (TYP)
● Nonlinearity: ±0.5℃ (MAX)
● Strong Output for Driving Loads up to 2000pF
● Short-Circuit Protection Output
● Suitable for Remote Applications
● Available in a Green SOT-23 Package
Mobile Phones and Laptops
Modules of Power Supply
Battery Management
Fax Machines and Printers
HVAC and Disk Drives
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM449TN3LG/TR | Active | SOT-23 | 23 | Yes | Yes | Yes | Yes | MSL1 | -55℃ to +150℃ | View | View | 1-24 units : $1.05/unit 25-99 units : $0.9/unit 100-249 units : $0.75/unit 250-499 units : $0.6/unit 500-999 units : $0.525/unit 1000-9999 units : $0.39/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
