TS7221BILT

Overview

The TS7221BILT is a single-channel analog comparator manufactured by STMicroelectronics, utilizing BiCMOS technology for micro-power operation. It operates within a supply voltage range of 2.7 V to 10 V and features an open-drain output capable of sourcing up to 30 mA per channel. The device exhibits a typical input offset voltage of 7 mV and an input bias current of 300 pA at 25°C. With a response time of 500 ns and a quiescent supply current of 6 µA, it supports a maximum power dissipation of 500 mW. It functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Single-channel general-purpose comparator design optimized for low power consumption via BiCMOS technology
• Open-drain output configuration allowing flexible interfacing with various logic families
• Rail-to-rail input capability ensuring accurate signal detection near supply rails

Applications

• Battery-powered portable devices requiring minimal standby current
• Threshold detection circuits in consumer electronics
• General-purpose signal conditioning in industrial control systems

Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official datasheet to confirm the exact electrical grade and tolerance specifications intended for your application. Ensure the SOT-23-5 package dimensions align with your PCB footprint requirements. Confirm RoHS compliance status through the latest environmental declaration provided by STMicroelectronics before finalizing procurement.

Selection Notes

Select this component when a single comparator with ultra-low quiescent current is required alongside moderate speed performance. The open-drain output necessitates an external pull-up resistor; ensure the selected resistor value supports the desired switching speed and logic level compatibility. Consider the 7 mV input offset voltage if high precision is critical for the threshold detection application.

Part Context

This part belongs to the TS7221 series of micropower comparators from STMicroelectronics. It shares the same core architecture and pinout with variants such as the TS7221AILT, differing primarily in manufacturing lot or specific electrical parameter grading. The series is designed for applications where power efficiency is paramount without sacrificing essential switching capabilities.

Replacement Considerations

The TS7221AILT is a documented variant within the same product family sharing identical pinouts and general specifications. Verify that any substitute maintains the required 2.7 V minimum supply voltage and open-drain output characteristics to ensure circuit compatibility.