LM393PE4

Overview

The LM393PE4 is a commercial-grade dual differential comparator manufactured by Texas Instruments. It utilizes an 8-pin PDIP through-hole package and operates within a temperature range of 0°C to +70°C. The device supports single-supply voltages from 2V to 36V, with each channel consuming a typical static current of 200μA. Key electrical characteristics include a typical input offset voltage of 1mV, a typical input bias current of 25nA, and a typical response time of 1.3µs. The output stage features an open-collector configuration compatible with TTL, MOS, and CMOS logic levels.

Feature Summary

• Dual independent voltage comparators integrated into a single low-power package
• Open-collector output structure enabling wired-AND logic combinations
• Input common-mode voltage range includes ground potential
• Compatible with standard digital logic families including TTL and CMOS

Applications

• Server power supply monitoring circuits
• Motor drive control systems
• Industrial automation sensing interfaces
• Single-phase uninterruptible power supplies (UPS)
• Wireless infrastructure signal processing

Procurement Notes

Verify the specific manufacturer prefix and suffix against official Texas Instruments documentation to confirm the LM393PE4 designation corresponds to the PDIP-8 commercial grade variant. Ensure compliance requirements match project specifications, as the E4 suffix typically indicates lead-free composition. Cross-reference the active lifecycle status and RoHS certification details directly with the manufacturer's current product data sheet before finalizing procurement decisions.

Selection Notes

Select this component when a dual-channel comparator with ground-referenced input capability is required for commercial temperature environments. The open-collector output necessitates external pull-up resistors tailored to the target logic voltage level. Consider the 200μA quiescent current consumption relative to system power budgets. Verify that the 1.3µs propagation delay meets the timing constraints of the specific application circuit compared to faster alternatives.

Part Context

The LM393PE4 belongs to the broader LM393 family of dual comparators produced by Texas Instruments. This series is widely utilized in general-purpose analog switching applications requiring low cost and moderate performance. The PE4 variant specifically denotes the PDIP-8 package form factor with lead-free termination materials, distinguishing it from surface-mount or hermetic military variants within the same functional family.

Replacement Considerations

LM393P serves as the direct equivalent part number without the environmental suffix. LM393DR offers the same functionality in a surface-mount SOIC package. LM2903 provides a similar dual comparator solution often available in automotive-grade temperature ranges.