A17700LESBTR-AO

Overview

The A17700LESBTR-AO is a pressure sensor interface and signal conditioning integrated circuit manufactured by Allegro MicroSystems. Designed for high-precision applications, it operates within a supply voltage range of 4.5 V to 5.5 V with a maximum input voltage of 5 V. The device draws a typical operating supply current of 6 mA and provides an analog output capable of sourcing up to 30 mA. It supports serial communication interfaces and is housed in a QFN-24 surface-mount package. The component is qualified for automotive use under AEC-Q100 standards and functions reliably across an extended temperature range from -40°C to +150°C.

Feature Summary

• Integrated signal conditioning for pressure sensors
• Automotive-grade reliability qualification
• Extended high-temperature operational capability

Applications

• Automotive pressure sensing systems
• Industrial sensor signal conditioning
• High-temperature environment monitoring

Procurement Notes

Verify the specific ordering suffix against official Allegro documentation to confirm pinout, packaging, and qualification status. Ensure compatibility with system voltage requirements of 4.5 V to 5.5 V. Confirm that the QFN-24 package aligns with PCB layout constraints. Check for moisture sensitivity levels if reflow soldering is planned. Validate that the serial interface protocol matches the host controller specifications.

Selection Notes

Select this component when a dedicated pressure sensor interface with analog output and automotive qualification is required. Consider the 6 mA current consumption for power-sensitive designs. Ensure the operating temperature range up to 150°C meets environmental demands. Verify that the QFN-24 footprint is available in the design. Confirm that the 30 mA output drive capability suits the downstream load requirements without external buffering.

Part Context

The A17700 belongs to the A17700 series of sensor interface ICs from Allegro MicroSystems. This family focuses on providing robust signal conditioning for various sensor types, particularly in automotive and industrial sectors. The part integrates necessary amplification and filtering stages to convert raw sensor signals into usable analog outputs while maintaining high accuracy and stability under harsh conditions.

Replacement Considerations

Consult Allegro MicroSystems official documentation for direct cross-references or updated revisions within the A17700 series. Verify functional equivalence regarding pinout, electrical parameters, and package dimensions before substitution. Ensure any alternative maintains AEC-Q100 qualification if automotive compliance is mandatory.