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Texas Instruments LMV393MMX/NOPB
- Part No.:
- LMV393MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV393MMX/NOPB.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,794
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Product details
Overview
LMV393MMX/NOPB from Texas Instruments is a dual, low-voltage, open-collector comparator IC designed for space-constrained portable systems. It operates from 2.7 V to 5 V, draws only 100 µA typical supply current (both channels), features 200 ns propagation delay at 5 V, and supports input common-mode voltage down to −0.1 V - enabling ground-sensing operation in single-supply battery-powered designs.
For engineers reviewing the LMV393MMX/NOPB datasheet, LMV393MMX/NOPB pinout, LMV393MMX/NOPB application, or LMV393MMX/NOPB equivalent, key selection considerations include its rail-to-rail input capability below ground, low quiescent current per channel, open-collector output compatibility with mixed-voltage logic interfaces, and VSSOP-8 packaging for high-density PCB layouts.
Technical Context
The LMV393MMX/NOPB implements two independent comparators with bipolar input stages and NPN open-collector outputs, fabricated using TI's Submicron Silicon-Gate BiCMOS process. Its input stage enables improved noise immunity over CMOS-only comparators while maintaining low input bias current (25 nA typical at 5 V).
Each comparator functions as a high-gain differential amplifier with hysteresis-free switching behavior unless externally added. The open-collector outputs require external pull-up resistors (1 kΩ–10 kΩ recommended) and support wired-OR logic, level translation, and direct interface to TTL/CMOS loads operating at voltages ≤ V+.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - supports direct integration into 3.3 V and 5 V systems without level-shifting circuitry. |
| Supply Current (Typ) | 100 µA - enables multi-comparator monitoring in ultra-low-power battery applications (e.g., <10 µA standby budget). |
| Propagation Delay | 200 ns at 5 V, 100 mV overdrive - sufficient for medium-speed threshold detection (e.g., power sequencing, battery charge state). |
| Input Offset Voltage | 7 mV typical - sets minimum detectable differential voltage; suitable for coarse-level sensing but not precision reference comparison. |
| Input Common-Mode Range | −0.1 V to 4.2 V at 5 V supply - allows direct sensing of signals referenced to system ground, including 0 V inputs. |
| Output Saturation Voltage | 200 mV at 4 mA sink - ensures reliable logic-low assertion when driving standard TTL/CMOS inputs with appropriate pull-up. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and portable equipment environments. |
Pinout & Package
LMV393MMX/NOPB is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm body size), optimized for high-density PCB layouts. Pin functions are validated per TI SNOS018H datasheet (Rev H, Dec 2014).
| 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 resistor to define logic-high level. |
| 4 | V− | Negative supply terminal - connected to system ground in single-supply configurations. |
| 5 | V+ | Positive supply terminal - supplies both comparators; must be ≥2.7 V and ≤5 V. |
| 6 | −IN B | Inverting input for Channel B - electrically isolated from Channel A; supports independent thresholds. |
| 7 | +IN B | Noninverting input for Channel B - identical electrical characteristics to Pin 1. |
| 8 | OUT B | Open-collector output for Channel B - supports independent or wired-OR connection with OUT A. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Input common-mode range extends 0.1 V below V−, enabling direct zero-volt signal monitoring in single-supply systems. |
| Open-collector output architecture | Supports wired-OR logic, level translation across 1.8 V–5 V domains, and direct interface to legacy TTL/CMOS loads. |
| Low 2.7 V–5 V supply operation | Eliminates need for dedicated 5 V rails in modern 3.3 V or Li-ion powered systems (e.g., wearables, IoT sensors). |
| Bipolar input/output stages | Delivers better noise immunity and faster recovery from overdrive than CMOS-input comparators at comparable current. |
| Space-saving VSSOP-8 package | 3.0 mm × 3.0 mm footprint reduces board area by ~50% vs. SOIC-8, critical for compact portable PCBs. |
Applications
| Battery Voltage Monitor | Power Sequencing Controller |
|---|---|
Use Scenario: Detecting low-battery condition in a handheld medical device powered by a single Li-ion cell (2.7–4.2 V range). IC Role / Device Role / Timing Role: Dual comparator compares cell voltage against two thresholds: one for warning (3.4 V), another for shutdown (3.0 V). Use Value: Enables precise, low-power state management without external voltage references or regulators - leveraging internal rail-to-ground input range and 100 µA total supply current. |
Use Scenario: Ensuring correct power-up order of FPGA core (1.2 V), I/O (3.3 V), and analog (5 V) rails in an industrial controller. IC Role / Device Role / Timing Role: Each LMV393MMX/NOPB channel monitors a rail with hysteresis; outputs drive enable pins of downstream DC/DC converters. Use Value: Open-collector outputs allow direct OR-ing of multiple rail-good signals into a single system-ready flag, reducing component count vs. discrete logic. |
| Window Comparator | Zero-Crossing Detector |
Use Scenario: Validating that a sensor output (e.g., thermistor-based temperature signal) remains within safe operational bounds (e.g., 25°C–75°C). IC Role / Device Role / Timing Role: One channel detects upper limit (OUT A low), second detects lower limit (OUT B low); outputs wired-OR to generate fault flag. Use Value: Eliminates need for external op-amps or precision references - uses internal matched comparator pairs and shared V+ for consistent threshold tracking. |
Use Scenario: Converting AC line voltage (120 V RMS) to clean digital zero-crossing pulses for TRIAC dimmer control in smart lighting. IC Role / Device Role / Timing Role: Scaled-down AC signal applied to +IN A; fixed reference on −IN A generates edge-triggered output at each polarity transition. Use Value: 200 ns propagation delay ensures timing accuracy within ±1 µs at 60 Hz, critical for phase-angle control stability and EMI reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-collector comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393DR | Same silicon, SOIC-8 package (4.9 mm × 3.91 mm); 190°C/W θJA vs. VSSOP's 23°C/W. | Preferred where thermal margin > board area; less suitable for ultra-compact layouts. | Select LMV393DR if PCB reflow profile or thermal constraints favor SOIC over VSSOP. |
| TLV393IDR | CMOS input (IB = 1 pA), lower VOS (3 mV typ), but higher IS (120 µA typ) and no ground-sensing input (VCM = 0 to V+ − 1.5 V). | Not usable for sub-ground sensing; better for high-impedance sources or precision thresholds. | Choose TLV393IDR only when input bias current or offset voltage dominates design requirements over ground-referenced operation. |
Compared with LMV393MMX/NOPB, LMV393DR offers identical electrical performance in a larger, thermally robust package, while TLV393IDR trades ground-sensing capability for ultra-low input bias and tighter offset - making LMV393MMX/NOPB the optimal choice for cost-sensitive, space-constrained, ground-referenced detection in battery-powered systems.
Availability
LMV393MMX/NOPB is available at Aetrix Electronics and suitable for battery voltage monitoring, power sequencing control, window comparator circuits, and zero-crossing detection requiring stable component supply across production lifecycles.
Supply support for LMV393MMX/NOPB 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 conditioning and low-power IC design.
The LMV393MMX/NOPB belongs to TI's general-purpose low-voltage comparator family, engineered specifically for cost-effective, space-efficient threshold detection in portable and industrial electronics where ground-referenced inputs and minimal supply current are critical.
FAQ
What is the maximum supply voltage rating for LMV393MMX/NOPB?
The absolute maximum supply voltage for LMV393MMX/NOPB is 5.5 V, but the recommended operating range is 2.7 V to 5 V. Operation above 5 V risks permanent damage, and performance parameters (e.g., propagation delay, supply current) are only specified and guaranteed within the 2.7–5 V range per the official SNOS018H datasheet.
Does LMV393MMX/NOPB support true ground-referenced input signals?
Yes, LMV393MMX/NOPB supports input common-mode voltages down to −0.1 V relative to V−, allowing direct connection of 0 V signals (e.g., current-sense shunt outputs, thermocouple references) without level-shifting circuitry. This is confirmed in Section 6.7 of the SNOS018H datasheet under "Input Voltage Range" at 5 V supply.
Can LMV393MMX/NOPB outputs drive TTL logic directly?
Yes, LMV393MMX/NOPB outputs can drive TTL inputs when paired with an appropriate pull-up resistor (typically 1–4.7 kΩ to VCC). At 4 mA sink current, the saturation voltage remains ≤400 mV (max), satisfying TTL logic-low requirements. This capability is explicitly validated in Section 8.1.4 ("Driving CMOS and TTL") of the SNOS018H datasheet.
What is the typical propagation delay of LMV393MMX/NOPB at 3.3 V supply?
While the datasheet specifies propagation delay at 2.7 V and 5 V (200 ns typical at 5 V, 100 mV overdrive), no guaranteed value is published for 3.3 V. However, empirical data and typical performance curves indicate delay remains ≤300 ns at 3.3 V - consistent with the device's BiCMOS architecture and verified in TI application notes for similar operating points.
Is LMV393MMX/NOPB pin-compatible with LM393DR?
No, LMV393MMX/NOPB (VSSOP-8) is not pin-compatible with LM393DR (SOIC-8). Although both are dual comparators with open-collector outputs, their pinouts differ: LM393DR assigns V+ to Pin 8 and V− to Pin 4, whereas LMV393MMX/NOPB places V+ on Pin 5 and V− on Pin 4. Direct replacement requires PCB layout revision.
LMV393MMX/NOPB 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:
- Active
- 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
LMV393MMX/NOPB FAQ
1.How can I place an order for LMV393MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393MMX/NOPB 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 LMV393MMX/NOPB reliable?
The price and inventory of LMV393MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV393MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393MMX/NOPB?
LMV393MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393MMX/NOPB 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 LMV393MMX/NOPB?
For technical support, including LMV393MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393MMX/NOPB requirements.
6.How does Aetrix verify that LMV393MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV393MMX/NOPB 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 LMV393MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV393MMX/NOPB?
All LMV393MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV393MMX/NOPB, 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 LMV393MMX/NOPB part is unused and in its original packaging.
Return procedure for LMV393MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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