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Product Detailed Parameters
- Description：PROTOTYPE
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 30V, ±1V ~ 15V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：6mA
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM2903SPWRCT is a dual differential voltage comparator manufactured by Texas Instruments, housed in an 8-pin TSSOP surface-mount package. It operates on a single supply voltage ranging from 2V to 36V or dual supplies up to ±18V. The device features open-collector outputs compatible with CMOS and TTL logic families. Key electrical parameters include a typical response time of 1.3µs, a maximum input offset voltage of 7mV at 5V, and a maximum input bias current of 250nA. It supports a continuous output current of 20mA per channel and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Dual differential voltage comparison capability for signal threshold detection
- Open-collector output structure enabling flexible logic interfacing
- Wide single-supply operating voltage range supporting diverse power environments
Applications
- Over-voltage and under-voltage monitoring circuits
- Threshold detection systems
- Logic level shifting interfaces
Procurement Notes
Verify the specific suffix 'CT' indicates Cut Tape packaging when ordering. Confirm the TSSOP-8 package dimensions match the PCB footprint requirements. Ensure the operating temperature range meets the environmental specifications of the final assembly. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity.
Selection Notes
Select this component for applications requiring low-power dual comparators with wide supply voltage tolerance. The open-collector output allows for wired-AND configurations. Consider the 1.3µs propagation delay for timing-sensitive designs. Verify that the 20mA sink current capability satisfies the load requirements without external buffering.
Part Context
This device belongs to the LMx93/LM2903 series of dual differential comparators designed for single-supply operation. It shares functional similarities with the LM193, LM293, and LM393, differing primarily in package type and manufacturing revisions. The TSSOP variant offers a compact solution for space-constrained printed circuit board layouts compared to through-hole alternatives.
Replacement Considerations
LM2903DR (SOIC-8 package)
FAQ
What is the maximum supply voltage for the LM2903SPWRCT?
The device supports a maximum single supply voltage of 36V or dual supplies of ±18V.
Does the LM2903SPWRCT have a shutdown mode?
No, the LM2903SPWRCT does not feature a shutdown mode.
