INA240PMPWTPSEP

Overview

The INA240PMPWTPSEP is a high- and low-side, bi-directional zero-drift current sense amplifier designed for space-enhanced applications. It features an ultra-precise architecture with enhanced PWM rejection capabilities. The device operates within a wide common-mode voltage range of -4 V to 80 V and supports supply voltages from 2.7 V to 5.5 V. It is housed in an 8-TSSOP package and is qualified for extended operating temperatures ranging from -55 °C to 125 °C.

Feature Summary

• Space-enhanced plastic packaging for radiation-tolerant environments
• Zero-drift architecture ensuring high precision without external calibration
• Enhanced PWM rejection for accurate measurements in noisy switching environments

Applications

• Satellite power management systems
• Spacecraft battery monitoring
• Radiation-hardened industrial control

Procurement Notes

Verify the specific suffix 'SEP' indicates space-grade qualification when sourcing. Confirm that the 8-TSSOP package dimensions match your PCB footprint requirements. Ensure the supplier provides traceability documentation suitable for aerospace or defense procurement standards. Check for any specific handling instructions related to the space-enhanced plastic material.

Selection Notes

Select this component when standard commercial parts lack the necessary radiation tolerance or long-term reliability for space missions. The zero-drift technology eliminates the need for periodic calibration, simplifying system design. Consider the -4 V to 80 V common-mode range if measuring currents on high-side or low-side configurations in high-voltage bus architectures.

Part Context

This part belongs to the Texas Instruments INA240 family of current sense amplifiers. While the base INA240 series offers high precision and PWM rejection, the PMPWTPSEP variant is specifically modified for space applications. It retains the core electrical performance but utilizes specialized materials and processes to meet environmental stress screening requirements for orbital use.

Replacement Considerations

Direct substitutes are limited due to the space-grade qualification. Evaluate other TI SEP-series components only if they share identical pinouts and space certification levels. Non-space grade INA240 variants may fit electrically but will not meet radiation hardness requirements.