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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SC70-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：Push-Pull
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5V
- Voltage - Input Offset (Max)：8mV @ 5V
- Current - Input Bias (Max)：0.6µA
- Current - Output (Typ)：-
- Current - Quiescent (Max)：95µA
- CMRR, PSRR (Typ)：67dB CMRR, 85dB PSRR
- Propagation Delay (Max)：75ns
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LMV7239QM7X/NOPB is a single-channel, ultra-low power, low-voltage comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7V to 5.5V and features rail-to-rail input capability, allowing the common-mode voltage to extend 200mV beyond both ground and the positive supply rail. The device provides a propagation delay of 75ns at 5V while consuming only 65µA of supply current. It utilizes a push-pull output stage that eliminates the need for external pull-up resistors. The component is housed in a 5-pin SC-70 (SOT-353) package, designated by the 'M7' suffix, and is qualified for automotive applications under AEC-Q100 standards.
Feature Summary
- Rail-to-rail input stage with extended common-mode voltage range extending 200mV below ground and above VCC
- Push-pull output architecture enabling direct drive without external pull-up components
- Automotive qualification compliant with AEC-Q100 Grade 1 specifications
- Ultra-low power consumption of 65µA at 5V supply with 75ns propagation delay
Applications
- Battery-powered portable electronic systems requiring minimal quiescent current
- Automotive sensing circuits subject to wide temperature variations (-40°C to +125°C)
- Ground-referenced signal detection where inputs may dip slightly below zero volts
- Power supply monitoring and over-voltage/under-voltage threshold detection
Procurement Notes
Verify the specific 'QM7' ordering suffix against the manufacturer's official datasheet to confirm the SC-70 package variant and automotive grade status. Ensure compatibility with system voltage rails between 2.7V and 5.5V. Confirm that the push-pull output current capabilities meet the load requirements of the downstream circuitry without exceeding absolute maximum ratings.
Selection Notes
Select this component when space-constrained designs require a single comparator with rail-to-rail inputs and no external pull-up resistors. It is suitable for applications demanding low static current to preserve battery life. Consider the 75ns propagation delay as the limiting factor for high-speed switching; if faster response is needed, evaluate other series members. Verify thermal performance within the specified -40°C to +125°C operating range.
Part Context
This part belongs to the LMV723x family of ultra-low power comparators from Texas Instruments. While the LMV7235 offers an open-drain output, the LMV7239 variant specifically provides a push-pull output for simplified interfacing. The 'Q' prefix indicates automotive qualification, and 'M7' denotes the 5-pin SC-70 package. This family targets cost-sensitive, low-power applications in consumer and automotive electronics.
Replacement Considerations
LMV7239M5X/NOPB: Functional equivalent with SOT-23-5 package instead of SC-70. LMV7239SQE/NOPB: Multi-channel variant with different package and pinout. LMV7239-Q1: Automotive grade alternative potentially available in different packages.
