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Texas Instruments LMV393IDR
- Part No.:
- LMV393IDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV393IDR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:16,250
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Product details
Overview
LMV393IDR from Texas Instruments is a dual low-voltage comparator IC designed for precision voltage comparison in space-constrained, battery-powered systems. It operates from 2.7V to 5.5V, draws 50μA typical supply current, features rail-to-rail input common-mode range including ground, and delivers 150mV typical output saturation voltage with open-collector outputs - enabling flexible logic-level interfacing in server PSU monitoring circuits.
For engineers reviewing the LMV393IDR datasheet, LMV393IDR pinout, LMV393IDR application, or LMV393IDR equivalent, key selection criteria include its dual-channel open-drain architecture, −40°C to +125°C operating temperature range, SOIC-8 package compatibility, and verified performance at both 2.7V and 5V supply rails.
Technical Context
The LMV393IDR implements a PNP-input stage enabling input common-mode operation down to ground (VICR = −0.1 V to VCC−0.7 V), supporting accurate sensing in single-supply 3.3V and 5V systems. Its open-collector NPN output stage sinks up to 23mA at 2.7V and 84mA at 5V, with VOL scaling linearly with sink current per Figure 5-3.
Propagation delay is supply- and overdrive-dependent: at VCC = 2.7V and 100mV overdrive, tPHL = 350 ns and tPLH = 400 ns; at VCC = 5V and same overdrive, tPHL = 200 ns and tPLH = 300 ns. Input offset voltage is specified at +0.5 mV (min) / 7 mV (typ) across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into modern 3.3V and 5V logic domains without level-shifting circuitry. |
| Supply Current (typ) | 50μA - enables multi-year battery life in portable vacuum robots and cordless power tools. |
| Input Offset Voltage (typ) | 7mV - ensures reliable detection of ≥10mV signal differentials in appliance threshold-sensing applications. |
| Common-Mode Input Range | −0.1V to VCC−0.7V - allows ground-referenced inputs and simplifies sensor interface design in building automation systems. |
| Output Saturation Voltage (typ) | 150mV at 1.5mA - guarantees strong logic-low assertion even under light pull-up loads in factory control I/O modules. |
| Propagation Delay (5V, 100mV OD) | tPHL = 200 ns, tPLH = 300 ns - meets timing requirements for fast-response overvoltage protection in server PSUs. |
| ESD Rating (HBM) | ±2000V - provides robust handling during automated PCB assembly and field service in industrial environments. |
Pinout & Package
LMV393IDR is housed in an 8-pin SOIC package (3.91mm × 4.90mm body size) with standard JEDEC MS-012AC footprint and RoHS-compliant NiPdAu lead finish. Thermal resistance RθJA = 168°C/W enables operation up to +125°C ambient without forced airflow in enclosed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-collector output of Comparator A - requires external pull-up to define logic-high level and interface with 1.8V–5V MCU GPIOs. |
| 2 | IN− A | Inverting input of Comparator A - accepts signals down to ground, enabling zero-reference voltage detection. |
| 3 | IN+ A | Non-inverting input of Comparator A - used for threshold comparison against analog sensor outputs or reference voltages. |
| 4 | GND | Analog ground reference - must be connected directly to system ground plane to minimize noise coupling into sensitive inputs. |
| 5 | VCC+ | Positive supply pin - requires 0.1μF ceramic bypass capacitor placed ≤2mm from pin to suppress supply transients. |
| 6 | IN− B | Inverting input of Comparator B - supports independent dual-threshold monitoring (e.g., high/low battery warning). |
| 7 | IN+ B | Non-inverting input of Comparator B - configurable as window comparator input when paired with Comparator A. |
| 8 | OUT B | Open-collector output of Comparator B - electrically isolated from OUT A, allowing separate pull-up voltages or load types. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 2.7V supply - eliminates need for dedicated 5V rails in 3.3V embedded systems. |
| Ground-sensing input stage | PNP differential pair enables VICR extension to −0.1V - supports direct connection to current-sense resistors referenced to ground. |
| Open-collector outputs | Independent sinking capability per channel - enables wired-AND logic, level translation, and mixed-voltage bus interfacing. |
| Low quiescent current | 50μA typical total supply current - reduces standby power in always-on building automation sensors. |
| Wide temperature range | Specified from −40°C to +125°C - qualified for under-hood automotive auxiliary modules and industrial motor drives. |
Applications
| Server Power Supply Monitoring | Vacuum Robot Battery Management |
|---|---|
Use Scenario: Real-time monitoring of +12V and +5V rails for overvoltage/undervoltage shutdown in 1U server PSUs. IC Role / Device Role / Timing Role: Dual comparator performing independent voltage window detection with <300ns response at 5V supply. Use Value: Enables fast fault isolation without microcontroller intervention, meeting IEC 62368-1 safety response time requirements. | Use Scenario: Battery pack voltage supervision in autonomous cleaning robots, triggering low-battery alerts and safe shutdown. IC Role / Device Role / Timing Role: Dual-channel threshold detector comparing cell voltage against 3.0V (low warning) and 2.8V (critical cutoff) references. Use Value: 50μA supply current extends operational runtime between charges; ground-sensing inputs simplify direct cell monitoring. |
| Cordless Power Tool Motor Control | Smart Appliance Temperature Sensing |
Use Scenario: Overcurrent protection via shunt voltage comparison during high-torque motor startup in 18V cordless drills. IC Role / Device Role / Timing Role: High-speed comparator detecting >100mV shunt drop (≈15A) with 200ns propagation delay at 5V. Use Value: Prevents MOSFET failure by initiating gate shutdown before thermal runaway occurs. | Use Scenario: Dual-temperature zone monitoring in smart ovens using NTC thermistors with fixed reference dividers. IC Role / Device Role / Timing Role: Dual comparator implementing hysteresis-free upper/lower trip points for cavity and door seal temperature thresholds. Use Value: Rail-to-ground input range allows direct thermistor interface without biasing circuitry, reducing BOM count and layout area. |
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 |
|---|---|---|---|
| LM393DR | Higher supply range (2V–36V), 100μA typical ICC, wider input offset (±2mV min), no guaranteed ground-sensing below 0°C. | Preferred in industrial 24V systems; less suitable for battery-critical 3.3V designs due to higher current and reduced low-VICR margin. | Select LM393DR only when wide supply range outweighs low-power and ground-sensing requirements. |
| TLV3702IDR | Lower ICC (38μA typ), rail-to-rail input, 1.8V–5.5V supply, but 1.5μs propagation delay - 5× slower than LMV393IDR at 5V. | Better for ultra-low-power IoT sensors where speed is secondary; unsuitable for PSU fault response or motor overcurrent protection. | Choose TLV3702IDR when sub-40μA current dominates timing requirements, not for real-time protection. |
Compared with LM393DR and TLV3702IDR, LMV393IDR uniquely balances 50μA ultra-low supply current, ground-sensing capability, and sub-300ns propagation delay at 5V - making it optimal for dual-threshold detection in portable and server power systems where both efficiency and responsiveness are critical.
Availability
LMV393IDR is available at Aetrix Electronics and suitable for server PSU monitoring, vacuum robot battery management, and cordless power tool motor control requiring stable component supply across extended production lifecycles.
Supply support for LMV393IDR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs and broad industrial portfolio coverage.
The LMV393IDR belongs to TI's general-purpose low-voltage comparator family, engineered specifically for cost-sensitive, space-constrained applications demanding low power, ground-sensing capability, and reliable operation across consumer, industrial, and computing markets.
FAQ
What is the maximum supply voltage rating for LMV393IDR?
The absolute maximum supply voltage for LMV393IDR is 5.5V, as specified in Section 5.1 of the datasheet. Operation beyond this voltage risks permanent device damage. The recommended operating range is 2.7V to 5.5V, ensuring full parametric compliance including input offset voltage, propagation delay, and output saturation across temperature.
Does LMV393IDR support true ground-referenced input operation?
Yes, LMV393IDR supports input common-mode voltage down to −0.1V at 25°C (VICR = −0.1V to VCC−0.7V), enabling direct connection to ground-referenced signals such as current-sense shunts or thermistor dividers. This capability is enabled by its PNP-input stage and is validated across the full −40°C to +125°C operating range.
What is the typical output sink current capability of LMV393IDR at 2.7V supply?
At VCC = 2.7V and 25°C, LMV393IDR delivers 23mA typical output sink current (IO) with VO ≤ 1.5V, as stated in Section 5.5. This allows direct driving of LEDs, small relays, or logic inputs with pull-up resistors as low as ~110Ω while maintaining VOL ≤ 150mV.
Can LMV393IDR be used in a window comparator configuration?
Yes, LMV393IDR's dual independent comparators enable straightforward window comparator implementation: Comparator A monitors upper threshold (IN+ tied to reference, IN− to signal), Comparator B monitors lower threshold (IN− tied to reference, IN+ to signal), with outputs wired-ANDed via external pull-up. No additional components are required beyond two resistive dividers and one pull-up resistor.
What package type and marking does LMV393IDR use?
LMV393IDR uses an 8-pin SOIC (D) package with 3.91mm × 4.90mm body size and is marked "MV393I" on the top surface. It is RoHS-compliant, has NiPdAu lead finish, and carries MSL Level-1 rating (260°C peak reflow, unlimited floor life), per TI's PACKAGE OPTION ADDENDUM dated March 2026.
LMV393IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Collector
- 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):
- 250µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LMV393IDR FAQ
1.How can I place an order for LMV393IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393IDR 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 LMV393IDR reliable?
The price and inventory of LMV393IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393IDR is usually 5 days.
3.What payment methods are accepted for LMV393IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393IDR?
LMV393IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393IDR 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 LMV393IDR?
For technical support, including LMV393IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393IDR requirements.
6.How does Aetrix verify that LMV393IDR is sourced from the original manufacturer or authorized distributors?
All LMV393IDR 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 LMV393IDR meets industry standards.
7.What is the process for return or replacement of LMV393IDR?
All LMV393IDR units undergo pre-shipment inspection (PSI). If there is an issue with LMV393IDR, 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 LMV393IDR part is unused and in its original packaging.
Return procedure for LMV393IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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