My Inquiry
My Account
Texas Instruments LMV393MM
- Part No.:
- LMV393MM
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV393MM.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV393MM from Texas Instruments is a dual, low-voltage, rail-to-ground input comparator with open-collector outputs, designed for space-constrained portable electronics. It operates from 2.7 V to 5 V, draws only 100 µA total supply current (50 µA/channel), and delivers 200 ns propagation delay at 5 V with 100 mV input overdrive. It is used in battery-powered voltage monitoring and level-shifting circuits where low quiescent power and ground-sensing capability are critical.
For engineers reviewing the LMV393MM datasheet, LMV393MM pinout, LMV393MM application, or LMV393MM equivalent, key selection criteria include its guaranteed 2.7-V/5-V operation, −40°C to +85°C industrial temperature range, input common-mode range extending to ground, 200 mV output saturation voltage at 4 mA sink, and compatibility with wired-OR logic configurations.
Technical Context
The LMV393MM implements a bipolar-input, BiCMOS-output architecture optimized for noise immunity and fast response in low-voltage systems. Its input stage supports common-mode voltages down to −0.1 V (below ground) and up to 4.2 V (at 5 V supply), enabling direct sensing of signals referenced to system ground. The open-collector output requires an external pull-up resistor (1 kΩ to 10 kΩ) and allows flexible interfacing with CMOS, TTL, or mixed-voltage logic families.
It functions as a threshold-detecting device: output goes low when the non-inverting input voltage exceeds the inverting input voltage, and remains high otherwise. This behavior enables use in window comparators, zero-crossing detectors, and hysteresis-based signal conditioning - all without internal feedback components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - supports single-cell Li-ion, two-cell alkaline, and standard 3.3 V/5 V rails without level shifting. |
| Supply Current (Total) | 100 µA typical at 5 V - enables multi-year battery life in always-on sensor monitors and wake-up circuits. |
| Propagation Delay | 200 ns typical (high-to-low, 100 mV overdrive, 5 V) - suitable for medium-speed digital event detection and oscillator timing. |
| Input Offset Voltage | 7 mV typical - sets minimum detectable differential voltage; stable across temperature (5 µV/°C drift). |
| Output Saturation Voltage | 200 mV max at 4 mA sink - ensures reliable logic-low assertion into 3.3 V CMOS inputs even under load. |
| Input Common-Mode Range | −0.1 V to 4.2 V at 5 V supply - permits direct ground-referenced sensing and compatibility with rail-to-rail input sources. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and extended-temperature consumer applications. |
Pinout & Package
LMV393MM is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm body size), optimized for high-density PCB layouts in portable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN A | Noninverting input for Channel A - accepts analog signals down to −0.1 V relative to V−. |
| 2 | −IN A | Inverting input for Channel A - typically used for reference voltage or feedback signal. |
| 3 | OUT A | Open-collector output for Channel A - requires external pull-up; sinks up to 10 mA. |
| 4 | V− | Negative supply terminal - connected to system ground in single-supply operation. |
| 5 | V+ | Positive supply terminal - accepts 2.7 V to 5 V; powers both channels and output stage. |
| 6 | −IN B | Inverting input for Channel B - electrically isolated from Channel A; supports independent thresholds. |
| 7 | OUT B | Open-collector output for Channel B - independently controllable; supports wired-OR with OUT A. |
| 8 | +IN B | Noninverting input for Channel B - identical electrical characteristics to +IN A. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Common-mode range includes −0.1 V below ground - eliminates need for negative supply or level-shifting circuitry in single-supply designs. |
| Low-power BiCMOS process | 60 µA/channel supply current at 2.7 V - reduces thermal load and extends battery runtime in wearables and IoT sensors. |
| Open-collector outputs | Supports wired-OR logic, mixed-voltage interfacing (e.g., 5 V logic driving 3.3 V MCU), and flexible pull-up voltage selection. |
| Fast propagation with low overdrive | 300 ns typical tPLH at 100 mV overdrive (5 V) - enables reliable edge detection on slowly varying or noisy signals. |
| Industrial temperature qualification | Specified performance from −40°C to +85°C - ensures consistent comparator behavior in automotive cabin modules and outdoor equipment. |
Applications
| Battery Voltage Monitor | USB Power Path Control |
|---|---|
|
Use Scenario: Detecting low-battery condition in Bluetooth earbuds before shutdown. IC Role / Device Role / Timing Role: Dual comparator compares cell voltage against two thresholds: one for warning (e.g., 3.4 V), one for critical cutoff (e.g., 3.0 V). Use Value: Enables precise, low-power state management using only 100 µA supply current - no additional supervisor IC required. |
Use Scenario: Enabling automatic switchover between USB bus power and internal battery in portable medical devices. IC Role / Device Role / Timing Role: One channel monitors USB VBUS > 4.75 V; second channel verifies battery voltage > 3.3 V to select optimal source. Use Value: Open-collector outputs drive MOSFET gate drivers directly, eliminating discrete logic and reducing BOM count. |
| Thermal Trip Detection | Signal Level Translation |
|
Use Scenario: Overtemperature shutdown in motor driver PCBs using NTC thermistor divider network. IC Role / Device Role / Timing Role: Compares thermistor voltage against fixed reference; hysteresis added externally to prevent chatter near trip point. Use Value: Input common-mode range to ground allows direct connection to grounded thermistor node - no biasing resistors needed. |
Use Scenario: Converting 1.8 V logic pulses from an MCU to 3.3 V levels for SPI flash memory interface. IC Role / Device Role / Timing Role: Comparator acts as unidirectional level shifter: 1.8 V input drives +IN; 3.3 V pull-up on OUT provides clean 3.3 V output swing. Use Value: 200 ns propagation delay preserves timing margins in 10 MHz SPI clock domains without added latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393IDR | Same electrical specs; SOIC-8 package (4.90 mm × 3.91 mm) - 6× larger footprint than VSSOP. | Preferred for prototyping or manual assembly where soldering fine-pitch VSSOP is impractical. | Select LMV393IDR when board space is unconstrained and hand-soldering or socketing is required. |
| TLV3702IDR | Lower supply current (80 µA total), rail-to-rail input, but higher propagation delay (550 ns); same VSSOP-8 package. | Better for ultra-low-power always-on sensing; less suitable for timing-critical oscillators or fast edge detection. | Choose TLV3702IDR when sub-100 µA total current is mandatory and speed is secondary to power savings. |
Compared with LMV393MM, LMV393IDR trades miniaturization for assembly flexibility, while TLV3702IDR prioritizes lower quiescent current at the expense of speed - making LMV393MM the balanced choice for space-limited, medium-speed, industrial-grade dual-comparator applications.
Availability
LMV393MM is available at Aetrix Electronics and suitable for battery voltage monitoring, USB power path control, thermal trip detection, and signal level translation requiring stable component supply across production lifecycles.
Supply support for LMV393MM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal chain and power management solutions.
The LMV393MM belongs to TI's LMV3xx-N general-purpose comparator family, engineered specifically for cost-sensitive, low-voltage, space-constrained applications in portable consumer and industrial electronics.
FAQ
What is the maximum sink current capability of each output in LMV393MM?
Each output of the LMV393MM can sink up to 10 mA while maintaining a saturation voltage ≤400 mV at 5 V supply and 25°C. At 4 mA sink, the typical saturation voltage is 200 mV - sufficient to drive standard CMOS inputs reliably. This rating applies per channel and is specified across the full operating temperature range.
Does LMV393MM support true rail-to-rail input operation?
LMV393MM does not provide full rail-to-rail input voltage range. Its input common-mode range extends from −0.1 V to 4.2 V at 5 V supply - meaning it accepts voltages down to 0.1 V below ground and up to 0.8 V below V+, but not to the positive rail. This "ground-sensing" capability enables direct interface with grounded sensors without level-shifting circuitry.
Can LMV393MM be used with a single 3.3 V supply?
Yes, LMV393MM is fully specified and characterized for operation at 3.3 V. Its recommended supply range is 2.7 V to 5 V, and all key parameters - including 100 µA typical supply current, 200 ns propagation delay, and −0.1 V to 2.6 V input common-mode range - are guaranteed at 3.3 V. It is widely deployed in 3.3 V embedded systems.
Is an external pull-up resistor required for LMV393MM outputs?
Yes, LMV393MM features open-collector outputs and requires an external pull-up resistor on each output line. TI recommends values between 1 kΩ and 10 kΩ, selected based on speed requirements and load capacitance. A 4.7 kΩ resistor is commonly used to balance rise time and power consumption in 3.3 V systems.
How does LMV393MM differ from the legacy LM393 in terms of supply voltage?
LMV393MM is the low-voltage optimized version of the LM393. While LM393 operates from 2 V to 36 V, LMV393MM is specified only from 2.7 V to 5 V - enabling smaller geometry, lower power (100 µA vs. 1 mA), and improved performance at modern logic supply rails. It is not a drop-in replacement for wide-supply applications but excels in portable, battery-powered designs.
LMV393MM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 84mA @ 5V
- Current - Output (Typ):
- 300µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-VSSOP
LMV393MM FAQ
1.How can I place an order for LMV393MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393MM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMV393MM reliable?
The price and inventory of LMV393MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393MM is usually 5 days.
3.What payment methods are accepted for LMV393MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393MM?
LMV393MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393MM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMV393MM?
For technical support, including LMV393MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393MM requirements.
6.How does Aetrix verify that LMV393MM is sourced from the original manufacturer or authorized distributors?
All LMV393MM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV393MM meets industry standards.
7.What is the process for return or replacement of LMV393MM?
All LMV393MM units undergo pre-shipment inspection (PSI). If there is an issue with LMV393MM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMV393MM part is unused and in its original packaging.
Return procedure for LMV393MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV393MM Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
