Manufacturer Part Number

MAX6673AXK+T

Description

Digital temperature sensor for local temperature measurement with operating range from -40°C to 125°C. Compact SC-70-5 package, suitable for space-limited applications. Output signal is PWM for easy readout by microcontrollers. Well-suited for embedded designs that need accurate and fast temperature sensing.

Specifications

Temperature measurement range: -40°C to 125°C

Supply voltage range: 2.4V to 5.5V

Output type: PWM (Pulse Width Modulation)

Package: SC-70-5 (also known as SOT-353, 5-TSSOP)

Accuracy: ±3°C (typical), ±5°C (maximum)

Operating temperature range matches sensing range: -40°C to 125°C

RoHS compliant (ROHS3), REACH unaffected

Moisture Sensitivity Level (MSL): 1, unlimited floor life

ECCN: EAR99

HTSUS code: 8542.39.0001

Device Structure

Monolithic digital temperature sensor

Single-chip IC

Surface-mount package (SC-70-5)

PWM output pin

No remote sensing capability

Compact and low-profile design for minimal PCB space usage

Performance Characteristics

Reliable accuracy across full rated temperature range

PWM output enables easy digital interfacing and allows resolution to be set by host

Fast response time due to proximity and chip design

Stable output and repeatable measurements

Low power operation suitable for battery-powered products

Works within wide supply range, making it flexible for different system needs

Application Environments

Consumer electronics

Industrial temperature monitoring

Battery management systems

Portable and embedded medical equipment

Networking and communication hardware

Automotive electronics (non-safety applications)

Anywhere space and power are limited

Selection Guidelines

Choose for applications needing straightforward temperature measurements in digital form

Verify system voltage compatibility (2.4V to 5.5V supply required)

Check your controller has PWM decoding capability

Ensure ambient temperature fits within -40°C to 125°C

Suitable if surface-mount, compact package is preferred

Not for high precision (< ±3°C), remote sensing, or analog output requirements

Usage Considerations

Mount on PCB in area representative of target temperature

Protect from thermal gradients and airflow that could distort readings

Connect PWM output to a microcontroller pin capable of frequency/duty-cycle measurement

Power supply must stay within specified range for proper operation

Check board design for potential electromagnetic interference with PWM signal

Observe ESD precautions during handling and assembly

Store and assemble as per MSL1 requirements (no special dry-pack or re-bake needed)

Potential Equivalent/Replacement Models

No direct remote sensing or analog output alternative among MAX6673 series

For similar local digital temperature sensors, consider these alternative models:

MAX6625, MAX6626 (Analog Devices/Maxim Integrated, slightly different output types and packages)

LM75 series (Texas Instruments/ON Semiconductor, I2C output, possible different pinout)

TMP100 (Texas Instruments, I2C-compatible, wider feature set)

ADT7310 (Analog Devices, SPI output, higher resolution)

If exact functional equivalence is critical, please contact Ariat-Tech sales team via our website for help finding suitable alternatives or for further information about your specific requirements

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