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Texas Instruments LMV393IDRG4
- Part No.:
- LMV393IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV393IDRG4.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,493
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Product details
Overview
LMV393IDRG4 from Texas Instruments is a dual low-voltage comparator IC operating from 2.7V to 5.5V, featuring open-collector outputs, 50μA typical supply current, and input common-mode range extending to ground. It delivers 150mV typical output saturation voltage and supports fast propagation delays down to 200ns (at 5V, 100mV overdrive), making it suitable for battery-powered vacuum robots and server PSU monitoring circuits.
For engineers reviewing the LMV393IDRG4 datasheet, LMV393IDRG4 pinout, LMV393IDRG4 application, or LMV393IDRG4 equivalent, key selection considerations include its dual-channel open-drain architecture, rail-to-rail input capability at low supply, and compatibility with 3.3V/5V logic interfaces in space-constrained industrial control and appliance designs.
Technical Context
The LMV393IDRG4 implements a PNP-input stage enabling input common-mode operation down to ground and up to VCC − 0.7V, supporting accurate threshold detection in single-supply systems. Its open-collector NPN output stage allows flexible pull-up configuration for level shifting or wired-AND logic functions.
It operates as a pure voltage comparator-no internal hysteresis or reference-requiring external components for noise immunity. Propagation delay varies with supply voltage and input overdrive: at 2.7V, tPHL is 350ns (100mV overdrive); at 5V, it improves to 200ns under identical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - enables direct use with Li-ion, 3.3V, and 5V rails without regulation |
| Supply Current (typ) | 50μA - supports ultra-low-power operation in always-on monitoring circuits |
| Input Offset Voltage (typ) | 7mV - defines minimum detectable differential voltage without external trimming |
| Output Saturation Voltage (typ) | 150mV at 1.5mA - ensures reliable logic-low assertion when sinking into standard pull-ups |
| Propagation Delay (tPHL, 5V) | 200ns at 100mV overdrive - enables response to fast transients in power sequencing applications |
| Common-Mode Input Range | –0.1V to VCC – 0.7V - permits ground-referenced sensing and compatibility with 0–3.3V sensor outputs |
| ESD Rating (HBM) | ±2000V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
LMV393IDRG4 is housed in an 8-pin SOIC (D) package measuring 3.91mm × 4.90mm, with surface-mount gull-wing leads and RoHS-compliant NiPdAu plating. Thermal resistance RθJA is 168°C/W, supporting operation up to +125°C ambient.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-collector output of comparator A - requires external pull-up for logic-high assertion |
| 2 | IN− A | Inverting input of comparator A - accepts signals down to ground for threshold comparison |
| 3 | IN+ A | Non-inverting input of comparator A - used for reference or signal input in high-side sensing |
| 4 | GND | Analog ground reference - must be low-impedance and decoupled near the device |
| 5 | VCC+ | Positive supply pin - bypass with 0.1μF ceramic capacitor to GND for noise immunity |
| 6 | IN− B | Inverting input of comparator B - independent channel for dual-threshold or window detection |
| 7 | IN+ B | Non-inverting input of comparator B - supports separate reference or signal path per channel |
| 8 | OUT B | Open-collector output of comparator B - electrically isolated from OUT A for independent logic control |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 2.7V supply - eliminates need for LDOs in 3.3V systems |
| Ground-sensing inputs | Input common-mode includes 0V - enables direct interface with ground-referenced sensors and ADCs |
| Open-collector outputs | Supports mixed-voltage interfacing (e.g., 3.3V comparator driving 5V MCU input via 5V pull-up) |
| Ultra-low quiescent current | 50μA typical for both comparators - extends battery life in portable tools and appliances |
| Wide temperature range | Specified from –40°C to +125°C - suitable for factory automation and server PSU environments |
Applications
| Vacuum Robot Obstacle Detection | Server PSU Overvoltage Protection |
|---|---|
Use Scenario: Detecting proximity sensor voltage drops indicating obstacle presence during navigation. IC Role / Device Role / Timing Role: Dual comparator monitors two IR sensor outputs against adjustable thresholds to trigger motor stop or direction change. Use Value: Ground-sensing inputs enable direct connection to unbuffered analog sensors; low supply current preserves battery runtime between cleaning cycles. |
Use Scenario: Monitoring +12V and +5V rails for overvoltage events before damage occurs to downstream components. IC Role / Device Role / Timing Role: One comparator channel compares rail voltage to precision reference; second channel provides hysteresis or redundancy. Use Value: Open-collector outputs interface directly with server management controllers (e.g., BMC) using existing 3.3V pull-ups, eliminating level translators. |
| Cordless Power Tool Battery Monitoring | Smart Appliance Motor Control |
Use Scenario: Tracking cell voltage during discharge to prevent deep discharge and enable low-battery warnings. IC Role / Device Role / Timing Role: Compares battery pack voltage against dual thresholds (warning and cutoff) using resistor-divider networks. Use Value: 2.7V minimum supply allows operation even during brownout; 150mV VOL ensures clean logic-low signaling to microcontroller wake-up pins. |
Use Scenario: Detecting zero-crossing or current-limit conditions in BLDC motor drivers for commutation timing and fault shutdown. IC Role / Device Role / Timing Role: Comparator converts current-sense amplifier output into digital edge for MCU timer capture or interrupt generation. Use Value: Fast 200ns propagation delay at 5V supports accurate timing in 20kHz+ PWM-driven motors; wide temp range ensures reliability in enclosed housings. |
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 | Wider supply range (2V–36V), higher ICC (500μA typ), no guaranteed ground-sensing below 2V | Better suited for high-voltage industrial sensors; less optimal for 3.3V-only battery systems | Choose LM393DR only if >5.5V operation or legacy design reuse is required |
| TLV3702IDR | Lower VIO (1.5mV max), rail-to-rail inputs, 85μA ICC, but no guaranteed ground-sensing below –0.1V | Higher precision for reference-based thresholds; slightly higher power consumption | Prefer TLV3702IDR when offset-critical window detection is needed and supply ≥3V |
Compared with LM393DR and TLV3702IDR, the LMV393IDRG4 offers the best balance of ultra-low power, guaranteed ground-referenced input operation, and SOIC-8 compatibility for cost-sensitive consumer and industrial applications where 2.7–5.5V supply is fixed.
Availability
LMV393IDRG4 is available at Aetrix Electronics and suitable for vacuum robot obstacle detection, server PSU overvoltage protection, and cordless power tool battery monitoring requiring stable component supply across production lifecycles.
Supply support for LMV393IDRG4 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 industrial-grade components.
The LMV393IDRG4 belongs to TI's general-purpose low-voltage comparator family, designed specifically for cost-sensitive, space-constrained applications demanding low power, ground-sensing capability, and robust operation across –40°C to +125°C.
FAQ
What is the maximum supply voltage for LMV393IDRG4?
The absolute maximum supply voltage for LMV393IDRG4 is 5.5V. Operating above this risks permanent damage. The recommended operating range is 2.7V to 5.5V, with full electrical specifications guaranteed across that span. At 5.5V, the device maintains 150mV typical saturation voltage and 200ns propagation delay (100mV overdrive), making LMV393IDRG4 suitable for 5V systems with margin.
Does LMV393IDRG4 support true ground-referenced input operation?
Yes, LMV393IDRG4 guarantees input common-mode voltage range down to –0.1V at 25°C and to 0V across –40°C to +125°C. This enables direct connection of sensors or signal sources referenced to system ground without level-shifting circuitry. The PNP input stage ensures accurate comparison even when IN+ or IN− is at 0V, a key differentiator from many competing comparators.
Can LMV393IDRG4 outputs drive a 5V logic input while powered from 3.3V?
Yes - LMV393IDRG4's open-collector outputs allow external pull-up to any voltage ≤5.5V, independent of VCC+. When powered from 3.3V, pulling OUT A or OUT B to 5V enables direct interfacing with 5V-tolerant MCU inputs. The 150mV typical saturation voltage ensures solid logic-low assertion, and the ±2000V HBM rating protects against ESD during mixed-voltage board handling.
What is the typical supply current of LMV393IDRG4 at 2.7V and 125°C?
At 2.7V and 125°C, LMV393IDRG4 draws ≤140μA (maximum specified), with typical current remaining near 50μA. The datasheet specifies 50μA typical at 25°C and 2.7V, and 200μA maximum at 125°C and 5V. This low, thermally stable ICC makes LMV393IDRG4 ideal for thermally demanding environments like enclosed server PSUs or motor-driven appliances where self-heating must be minimized.
Is LMV393IDRG4 pin-compatible with LM393DR in SOIC-8 packages?
Yes - LMV393IDRG4 and LM393DR share identical SOIC-8 (D) pinout: Pin 1 = OUT A, Pin 2 = IN− A, Pin 3 = IN+ A, Pin 4 = GND, Pin 5 = VCC+, Pin 6 = IN− B, Pin 7 = IN+ B, Pin 8 = OUT B. However, LMV393IDRG4 adds guaranteed ground-sensing and lower ICC, while LM393DR supports higher voltages. Direct replacement is electrically valid in 2.7–5.5V designs, but verify input common-mode and timing requirements.
LMV393IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
LMV393IDRG4 FAQ
1.How can I place an order for LMV393IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393IDRG4 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 LMV393IDRG4 reliable?
The price and inventory of LMV393IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393IDRG4 is usually 5 days.
3.What payment methods are accepted for LMV393IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393IDRG4?
LMV393IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393IDRG4 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 LMV393IDRG4?
For technical support, including LMV393IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393IDRG4 requirements.
6.How does Aetrix verify that LMV393IDRG4 is sourced from the original manufacturer or authorized distributors?
All LMV393IDRG4 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 LMV393IDRG4 meets industry standards.
7.What is the process for return or replacement of LMV393IDRG4?
All LMV393IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV393IDRG4, 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 LMV393IDRG4 part is unused and in its original packaging.
Return procedure for LMV393IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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