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Product Detailed Parameters
- Description：IC COMPARATOR 4 DIFF 14TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Collector
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：2.5mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：14-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM239AMPWREP is a quad differential comparator manufactured by Texas Instruments, designed for low-power applications. It features an open-collector output compatible with various logic families and operates within a wide supply voltage range of 2V to 36V. The device includes four independent channels in a 14-TSSOP package, supporting surface-mount installation. Key electrical characteristics include a maximum input offset voltage of 2.5mV at 30V and a typical output current of 20mA. It functions reliably across an extended temperature range from -55°C to +125°C.
Feature Summary
- Quad differential architecture providing four independent comparison channels
- Open-collector output structure ensuring compatibility with TTL, DTL, ECL, MOS, and CMOS logic systems
- Wide single or dual power supply operation capability ranging from 2V to 36V
- Extended industrial temperature performance spanning from -55°C to +125°C
Applications
- Battery-powered equipment requiring low quiescent current
- On-off temperature control systems
- Supervisory timer circuits
- Voltage monitors and level detection
Procurement Notes
Verify the specific suffix 'AMPWREP' corresponds to the automotive-grade enhanced product variant with TSSOP-14 packaging. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications. Ensure the ordering part number matches the exact manufacturer designation to avoid pinout or functional discrepancies during integration.
Selection Notes
Select this component when high channel density is required in a compact surface-mount footprint. The open-collector output necessitates external pull-up resistors, which must be sized according to the target logic family voltage levels. Consider the 20mA sink capability for direct driving of small loads or interface circuits without additional buffering stages.
Part Context
This device belongs to the LM239A-EP series, representing an enhanced product version of the standard LM239 comparator line. It shares architectural similarities with other quad comparators but offers specific reliability enhancements. The TSSOP-14 package provides a space-efficient alternative to larger SOIC or DIP formats while maintaining comparable thermal and electrical performance metrics.
Replacement Considerations
Direct substitutes include LM239AMPWR and LM239AMPW. Verify pin compatibility and electrical parameter tolerances before substitution. Alternative packages such as SOIC-14 variants like LM239AMDREP require PCB layout adjustments due to differing physical dimensions.
