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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：CMOS, DTL, ECL, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1.25mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SC-74A, SOT-753
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TS391IYLT is a low-power, single-channel voltage comparator manufactured by STMicroelectronics. It operates from a single supply ranging from 2V to 36V or dual supplies of ±1V to ±18V. The device features an input common-mode voltage range that includes ground, even with single-supply operation. Key electrical specifications include a maximum supply current of 1.25mA and a typical output saturation voltage of 250mV at 4mA load. It supports TTL, DTL, ECL, and CMOS compatible outputs.
Feature Summary
- Designed for low-power applications with supply current independent of voltage
- Input common-mode range extends to ground on single-supply systems
- Outputs are compatible with various logic families including TTL and CMOS
Applications
- Battery-powered monitoring circuits
- Threshold detection in industrial control systems
- Signal conditioning for microcontroller interfaces
Procurement Notes
Verify the specific suffix 'IYLT' against the official datasheet to confirm package type (SOT-23-5) and temperature grade. Ensure the ordering code matches the required reel quantity and moisture sensitivity level. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when a single-supply comparator with ground-referenced inputs is required. It is suitable for designs needing low quiescent current and wide supply voltage flexibility. Consider the open-collector output capability for interfacing with different logic levels without additional level shifters.
Part Context
This part belongs to the TS391 series of analog comparators. It is designed as a general-purpose solution for voltage sensing tasks. The series emphasizes power efficiency and compatibility with standard digital logic families, making it versatile for embedded systems.
Replacement Considerations
Check for direct pin-compatible alternatives within the same family, such as other TS391 variants with different speed or offset voltage grades. Verify that any substitute maintains the SOT-23-5 package and AEC-Q100 qualification if automotive reliability is required.
