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Texas Instruments LMV393IDGKRG4
- Part No.:
- LMV393IDGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV393IDGKRG4.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,016
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Product details
Overview
LMV393IDGKRG4 from Texas Instruments is a dual low-voltage comparator IC with open-collector outputs, operating from 2.7V to 5.5V supply, delivering 50μA typical supply current, 150mV typical output saturation voltage, and input common-mode range extending to ground - enabling precise threshold detection in battery-powered industrial sensors and power management circuits.
For engineers reviewing the LMV393IDGKRG4 datasheet, LMV393IDGKRG4 pinout, LMV393IDGKRG4 application, or LMV393IDGKRG4 equivalent, key selection criteria include its dual-channel open-drain architecture, rail-to-rail input capability down to GND, sub-1μA input bias current, and VSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The LMV393IDGKRG4 implements a PNP-input stage enabling input common-mode voltage operation from ground up to VCC–0.7V, supporting accurate sensing in single-supply systems. Its open-collector NPN output stage allows flexible logic-level translation via external pull-up resistors to voltages independent of the comparator's supply rail.
It functions strictly as a voltage comparator - not an amplifier - with propagation delays of 200ns (tPHL) and 300ns (tPLH) at 5V supply and 100mV overdrive, and maintains stable performance across –40°C to +125°C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into 3.3V and 5V systems without level-shifting circuitry |
| Supply Current (Typ) | 50μA - enables multi-year battery life in always-on monitoring applications |
| Input Offset Voltage (Typ) | 7mV - defines minimum detectable differential voltage between IN+ and IN− |
| Input Bias Current (Typ) | 0.005nA - minimizes loading error on high-impedance sensor sources like thermistors or photodiodes |
| Output Saturation Voltage | 150mV at 1.5mA sink - ensures reliable low-state logic recognition with standard CMOS inputs |
| Propagation Delay (100mV OD) | 200ns (tPHL), 300ns (tPLH) at 5V - suitable for response-critical functions such as overvoltage latch or motor stall detection |
| Common-Mode Input Range | –0.1V to VCC–0.7V - permits direct connection of ground-referenced signals without offset networks |
Pinout & Package
VSSOP-8 (DGK) package: 3.00mm × 4.40mm body, 0.65mm pitch, surface-mount, moisture-sensitive level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-collector output of comparator A - requires external pull-up to define logic-high voltage |
| 2 | IN− A | Inverting input of comparator A - accepts signals down to ground reference |
| 3 | IN+ A | Non-inverting input of comparator A - used for threshold or reference comparison |
| 4 | GND | Analog ground reference - must be low-impedance and decoupled near device |
| 5 | VCC+ | Positive supply rail - requires 0.1μF ceramic bypass capacitor to GND |
| 6 | IN− B | Inverting input of comparator B - electrically isolated from channel A |
| 7 | IN+ B | Non-inverting input of comparator B - supports independent dual-threshold configuration |
| 8 | OUT B | Open-collector output of comparator B - independently configurable with separate pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Enables direct interface with 0V-referenced sensors (e.g., current-sense shunts, thermocouples) without level-shifters |
| Ultra-low quiescent current | 50μA typical per dual unit - reduces system standby power by >90% vs legacy LM393 |
| Open-collector outputs | Supports wired-AND logic, mixed-voltage interfacing (e.g., 3.3V comparator driving 5V MCU), and programmable hysteresis |
| Wide temperature range | Specified from –40°C to +125°C - qualified for automotive cabin, industrial PLC, and outdoor equipment use |
| ESD robustness | ±2000V HBM - withstands handling in uncontrolled assembly environments without additional protection |
Applications
| Server PSU Monitoring | Vacuum Robot Safety Control |
|---|---|
Use Scenario: Real-time monitoring of +12V and +5V rails in server power supplies for overvoltage/undervoltage fault detection. IC Role / Device Role / Timing Role: Dual comparator performing independent voltage window comparison with fast response to trigger shutdown logic. Use Value: 200ns propagation delay at 100mV overdrive ensures sub-microsecond fault response, preventing downstream component damage. | Use Scenario: Detecting vacuum loss or motor stall in collaborative robotic end-effectors using pressure transducer and current-sense feedback. IC Role / Device Role / Timing Role: Comparator A monitors pressure threshold; Comparator B monitors motor current rise time - both feeding safety interlock logic. Use Value: Ground-referenced inputs eliminate need for signal conditioning, reducing BOM count and board area in compact robot joints. |
| Cordless Power Tool Battery Protection | Smart Appliance Motor Commutation |
Use Scenario: Cell voltage balancing and pack over-discharge cutoff in 18V Li-ion battery packs for cordless drills and saws. IC Role / Device Role / Timing Role: Dual comparator compares individual cell voltages against precision reference to enable passive balancing or cut-off switching. Use Value: 7mV input offset ensures ≤1% voltage threshold error, critical for maximizing usable battery capacity while preventing deep discharge. | Use Scenario: Zero-crossing detection for brushless DC motor commutation in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Comparator converts back-EMF waveform into digital timing edges for microcontroller-based phase control. Use Value: Open-collector outputs interface directly with 3.3V MCU GPIO pins, eliminating level-shifter ICs and reducing system cost by $0.12/unit. |
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 |
|---|---|---|---|
| LMV393DR | SOIC-8 package (3.91mm × 4.90mm); 168°C/W θJA vs 216°C/W for DGK; identical electrical specs | Preferred for through-hole prototyping or legacy SOIC footprints; less suited for high-density automated assembly | Select when board layout accommodates larger footprint or requires manual reworkability |
| TLV3702IDGKR | Lower input offset (1.5mV typ), higher supply current (85μA), rail-to-rail input (beyond ground), same VSSOP-8 package | Better accuracy for precision thresholding (e.g., medical sensor alarms); higher power consumption limits battery lifetime | Select when <2mV offset is mandatory and 35μA extra supply current is acceptable |
Compared with LMV393DR and TLV3702IDGKR, the LMV393IDGKRG4 offers optimal balance of ultra-low power, ground-sensing capability, and compact VSSOP packaging - making it ideal for space- and energy-constrained embedded systems where cost and thermal performance are prioritized over sub-millivolt accuracy.
Availability
LMV393IDGKRG4 is available at Aetrix Electronics and suitable for server PSU monitoring, vacuum robot safety control, cordless power tool battery protection, and smart appliance motor commutation requiring stable component supply across extended production cycles.
Supply support for LMV393IDGKRG4 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 over 90 years of innovation in precision signal chain and power management solutions.
The LMV393IDGKRG4 belongs to TI's general-purpose low-voltage comparator product line, designed specifically for cost-sensitive, space-constrained applications demanding ground-referenced sensing, minimal power draw, and robust industrial temperature operation.
FAQ
What is the maximum supply voltage rating for LMV393IDGKRG4?
The absolute maximum supply voltage for LMV393IDGKRG4 is 5.5V. Operation beyond this value risks permanent damage. The recommended operating range is 2.7V to 5.5V, ensuring full specification compliance including input common-mode range, propagation delay, and output saturation voltage across –40°C to +125°C ambient conditions. Always observe derating guidelines for long-term reliability in high-temperature environments.
Does LMV393IDGKRG4 support rail-to-rail input operation?
LMV393IDGKRG4 does not support true rail-to-rail input - its input common-mode voltage range extends from –0.1V to VCC–0.7V. This means it accepts signals down to ground (enabling direct connection to 0V-referenced sources) but cannot reliably sense voltages within ~700mV of VCC. For applications requiring full VCC-referenced inputs, consider alternatives like TLV3702IDGKR, which specifies rail-to-rail input capability.
Can LMV393IDGKRG4 drive a 5V logic input directly?
Yes, LMV393IDGKRG4 can drive a 5V logic input directly using its open-collector output: connect an external pull-up resistor from OUTx to the 5V logic rail. The output transistor sinks current when active, pulling the node low; when inactive, the pull-up defines the high state. Ensure the pull-up resistor value (e.g., 10kΩ) limits sink current below 23mA (at 2.7V) or 84mA (at 5V) to maintain 150mV saturation voltage and avoid excessive VOL.
What is the input bias current specification for LMV393IDGKRG4 at 25°C?
The input bias current for LMV393IDGKRG4 is specified as 0.005nA (5pA) typical at 25°C, with a maximum of 250nA. This ultra-low value minimizes loading errors on high-impedance sources such as thermistors, photodiodes, or RC timing networks. At –40°C to +125°C, bias current increases to a max of 400nA - still sufficiently low for most precision sensing applications without requiring guard traces or active guarding.
Is LMV393IDGKRG4 pin-compatible with standard LM393 devices?
No, LMV393IDGKRG4 is not pin-compatible with the legacy LM393. While both are dual comparators with open-collector outputs, LM393 uses an SOIC-8 footprint with different pin assignments (e.g., LM393 places GND at Pin 4 and VCC at Pin 8). LMV393IDGKRG4 follows the modern VSSOP-8 (DGK) pinout: GND at Pin 4, VCC at Pin 5. Direct replacement requires PCB redesign or adapter board; however, electrical behavior and functional interface remain consistent across the LMV393/LM393 families.
LMV393IDGKRG4 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:
- 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-VSSOP
LMV393IDGKRG4 FAQ
1.How can I place an order for LMV393IDGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393IDGKRG4 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 LMV393IDGKRG4 reliable?
The price and inventory of LMV393IDGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393IDGKRG4 is usually 5 days.
3.What payment methods are accepted for LMV393IDGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393IDGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393IDGKRG4?
LMV393IDGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393IDGKRG4 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 LMV393IDGKRG4?
For technical support, including LMV393IDGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393IDGKRG4 requirements.
6.How does Aetrix verify that LMV393IDGKRG4 is sourced from the original manufacturer or authorized distributors?
All LMV393IDGKRG4 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 LMV393IDGKRG4 meets industry standards.
7.What is the process for return or replacement of LMV393IDGKRG4?
All LMV393IDGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV393IDGKRG4, 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 LMV393IDGKRG4 part is unused and in its original packaging.
Return procedure for LMV393IDGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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