Product Details

describe:

The LM95172EWG is an integrated digital output temperature sensor with a serial peripheral interface (SPI) and a MICROWIRE™ compatible interface in a 10-pin Cerpack high temperature ceramic package. It features a very linear Sigma-Delta analog-to-digital converter (ADC), high accuracy, fast conversion rates and very low output noise. With an operating temperature as low as -40°C and optimized accuracy from 120°C to 200°C, it is ideal for high temperature applications.

When the AO4718 chip temperature exceeds the programmed T HIGH limit, the over temperature alarm output ( OVERTEMP ) will take effect. The user-programmed T LOW limit creates a temperature stabilization hysteresis as the ambient temperature approaches the trip point.

The LM95172EWG can be programmed to operate from 13 bits (0.0625°C per LSB) to 16 bits (0.0078125°C per LSB) resolution. The LM95172EWG powers up in 35 ms, the fastest conversion time, and the temperature output is set to 13-bit resolution. The resolution can then be changed to 14-bit, 15-bit or 16-bit. In 13-bit, 14-bit or 15-bit resolution mode, the least significant bit in the 16-bit temperature register toggles after each conversion. This bit can be monitored to verify that the conversion is complete.

The high noise immunity of the serial I/O (SI/O) output makes the LM95172EWG ideal for use in challenging electromagnetic environments.

characteristic:

● The LM95172EWG is AEC-Q100 Grade 0 certified and manufactured in an automotive-grade process.

13-bit (0.0625°C LSB) to 16-bit (0.0078125°C LSB) temperature resolution

Wide temperature range from -40°C to +200°C

35 ms optimal transition time to track fast temperature changes

OVERTEMP digital output switches when T DIE > T HIGH

Power-off mode saves power, but wakes up for one-time temperature updates

●SPI and MICROWIRE bus interface

10-pin Cerpack high temperature ceramic package

Main Specifications:

●Analog and digital supply voltage 3.0V to 5.5V

●Total power operating current 400 μA (typ.)

○ Shutdown -40°C to +140°C 4 μA (max)

○ Shutdown -40°C to +175°C 12 μA (max)

○Shutdown -40°C to +200°C 28 μA (max)

●Temperature accuracy

○+175°C to +200°C ±3.0°C (max)

○+130°C to +160°C ±1.0°C (max)

○+120°C to +130°C ±2.0°C (max)

○+160°C to +175°C ±2.0°C (max)

○-40°C to +120°C ±3.5°C (max)

●Temperature resolution

○13-bit mode 0.0625°C/LSB

○16-bit mode 0.0078125°C/LSB

●Conversion time

○13-bit mode 43 ms (maximum)

○ 16-bit mode 350 ms (maximum)

parameter:

Local Sensor Accuracy (Max) (+/- C): 1

Type: local

Operating temperature range (°C): -40 to 200

Power supply voltage (Min) (V): 3

Interface type: SPI

Power supply voltage (Max) (V): 5.5

Supply Current (Max) (uA): 456

Temperature Resolution (Max) (Bits): 16

Features: ALERT, one-click conversion

Remote channel (#): 0

Address: not applicable