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Texas Instruments LMV393IDGKR
- Part No.:
- LMV393IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV393IDGKR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:12,020
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Product details
Overview
LMV393IDGKR from Texas Instruments is a dual low-voltage rail-to-rail input comparator with open-collector outputs, operating from 2.7V to 5.5V supply. It delivers 50μA typical supply current, 150mV typical output saturation voltage, and supports input common-mode voltage down to ground - enabling precise threshold detection in battery-powered and 3.3V/5V systems such as server PSUs and cordless power tools.
For engineers reviewing the LMV393IDGKR datasheet, LMV393IDGKR pinout, LMV393IDGKR application, or LMV393IDGKR equivalent, key selection criteria include its dual-channel open-drain architecture, −40°C to +125°C operating range, VSSOP-8 package footprint, and compatibility with level-shifting and wired-AND logic interfaces.
Technical Context
The LMV393IDGKR implements a PNP-input stage enabling input common-mode operation down to GND (−0.1V to VCC−0.7V), critical for single-supply sensing near ground. Its open-collector NPN output stage sinks up to 23mA at 2.7V and 84mA at 5V, allowing flexible pull-up voltage selection independent of VCC.
Propagation delays are 600ns (tPHL) and 450ns (tPLH) at 5V with 10mV overdrive, and input offset voltage remains ≤7mV (typ) across 2.7V–5.5V supply and −40°C to +125°C temperature range - supporting stable performance in industrial and automotive-grade applications.
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 - allows continuous operation in ultra-low-power systems like portable appliances and building sensors. |
| Input Offset Voltage (max) | 9mV over −40°C to +125°C - ensures reliable trip-point accuracy without trimming in cost-sensitive designs. |
| Output Saturation Voltage (typ) | 150mV at 1.5mA - minimizes voltage drop in active-low signaling and improves noise margin with standard logic pull-ups. |
| Propagation Delay (tPHL, 5V) | 600ns at 10mV overdrive - supports response timing for mid-speed monitoring (e.g., PSU fault detection, motor stall sensing). |
| Common-Mode Input Range | −0.1V to 4.2V at 5V supply - permits direct interface to ground-referenced sensors and ADC references. |
| ESD Rating (HBM) | ±2000V - meets IEC 61000-4-2 Level 2 requirements for robustness in factory automation environments. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00mm × 4.40mm body, 0.65mm lead pitch, exposed thermal pad optional. RoHS-compliant, NIPDAU/SN lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-collector output of Comparator 1 - requires external pull-up; sinks current when IN1− > IN1+. |
| 2 | IN1− | Inverting input of Comparator 1 - accepts signals down to GND; referenced to internal PNP input stage. |
| 3 | IN1+ | Non-inverting input of Comparator 1 - used for threshold or reference comparison. |
| 4 | GND | Analog ground reference - must be low-impedance return path for input and output currents. |
| 5 | VCC+ | Positive supply pin - powers both comparators; decoupling capacitor required per layout guidelines. |
| 6 | IN2− | Inverting input of Comparator 2 - electrically isolated from IN1−; supports independent dual-sensing paths. |
| 7 | IN2+ | Non-inverting input of Comparator 2 - enables simultaneous monitoring of two distinct thresholds. |
| 8 | OUT2 | Open-collector output of Comparator 2 - independently configurable pull-up; supports wired-AND logic with OUT1. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range including ground | Enables direct sensing of 0V-referenced signals (e.g., current-sense shunts, thermistor dividers) without level-shifting circuitry. |
| Open-collector outputs | Permits mixed-voltage interfacing - e.g., LMV393IDGKR on 3.3V supply driving 1.8V or 5V logic via appropriate pull-up resistor. |
| Low 50μA supply current (typ) | Reduces quiescent power in always-on monitoring circuits, extending battery life in portable tools and robotics. |
| −40°C to +125°C operating range | Supports deployment in under-hood automotive modules, industrial motor drives, and server power supplies without derating. |
| 2.7V minimum supply voltage | Allows operation directly from single-cell LiFePO₄ (3.2V) or two alkaline cells (3.0V), eliminating need for LDO pre-regulation. |
Applications
| Server Power Supply Monitoring | Vacuum Robot Safety Interlock |
|---|---|
|
Use Scenario: Real-time detection of overvoltage, undervoltage, and overcurrent faults in 12V/5V/3.3V DC-DC rails. IC Role / Device Role / Timing Role: Dual comparator performing independent window-comparison on sense voltages with <600ns response. Use Value: Enables fast shutdown (<1µs system reaction) before MOSFET failure, meeting IEC 62368-1 safety requirements. |
Use Scenario: Monitoring vacuum pressure sensor output and emergency stop switch status in collaborative cleaning robots. IC Role / Device Role / Timing Role: One channel compares pressure against safe threshold; second channel validates E-stop continuity. Use Value: Guarantees fail-safe behavior: open-circuit E-stop or loss of vacuum forces immediate motor disable via wired-AND output logic. |
| Cordless Power Tool Battery Management | Smart Appliance Motor Control |
|
Use Scenario: Cell voltage balancing supervision and pack overtemperature cutoff in 18V/20V Li-ion battery packs. IC Role / Device Role / Timing Role: Dual comparator monitors cell voltage differential and thermistor voltage against fixed references. Use Value: Prevents thermal runaway by triggering charge interruption within 10ms of overtemp detection, using only 50μA quiescent current. |
Use Scenario: Speed zero-crossing detection and overload protection in BLDC motor drivers for washing machines and HVAC fans. IC Role / Device Role / Timing Role: One comparator detects back-EMF zero crossings; second monitors current-sense amplifier output. Use Value: Enables precise commutation timing and instantaneous current-limit tripping without adding microcontroller overhead or 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 |
|---|---|---|---|
| LM393DR | Wider 2V–36V supply range; higher 100μA supply current; input common-mode limited to VCC−1.5V (no ground sensing). | Preferred in high-voltage industrial controls but unsuitable for ground-referenced sensing or sub-3V battery operation. | Select LM393DR only when operating above 5.5V or requiring legacy pinout compatibility with through-hole SOIC-8. |
| TLV3702IDGKR | Lower 8μA supply current; rail-to-rail inputs/outputs; 360ns propagation delay at 5V; higher 1.8V min supply. | Better for ultra-low-power IoT sensors and precision analog front-ends where speed and supply headroom are constrained. | Choose TLV3702IDGKR when minimizing system power budget is critical and 1.8V–5.5V supply range suffices. |
Compared with LM393DR and TLV3702IDGKR, the LMV393IDGKR uniquely balances ground-sensing capability, 50μA efficiency, and SOIC/VSSOP footprint compatibility - making it optimal for cost-sensitive 2.7V–5.5V industrial and portable applications requiring reliable dual-threshold detection.
Availability
LMV393IDGKR is available at Aetrix Electronics and suitable for server PSU monitoring, vacuum robot safety interlocks, and cordless power tool battery management requiring stable component supply across extended production lifecycles.
Supply support for LMV393IDGKR 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 ICs.
The LMV393IDGKR belongs to TI's general-purpose low-voltage comparator family, designed specifically for cost-sensitive, space-constrained applications demanding ground-sensing capability, low quiescent current, and robust industrial temperature operation.
FAQ
What is the maximum supply voltage rating for LMV393IDGKR?
The absolute maximum supply voltage for LMV393IDGKR is 5.5V. Exceeding this value risks permanent damage per TI's Absolute Maximum Ratings table. Recommended operating range is 2.7V to 5.5V, with full electrical specifications guaranteed across that span. Operation at 5.5V is valid but requires attention to thermal dissipation due to increased supply current at higher VCC. The LMV393IDGKR must never be subjected to transient spikes beyond 5.5V without external clamping.
Does LMV393IDGKR support input voltages below ground?
No, LMV393IDGKR does not support input voltages below ground. Its input common-mode range is specified from −0.1V to VCC−0.7V at 25°C, meaning the absolute lower limit is −0.1V - slight negative excursions may be tolerated briefly but are outside guaranteed operation. The device is optimized for ground-referenced sensing, not dual-supply or bipolar input applications. For true rail-to-rail or negative input capability, consider TI's TLV3702 or similar devices.
Can LMV393IDGKR outputs be wire-OR'd together?
Yes, LMV393IDGKR outputs can be wire-OR'd (wired-AND logic) because both OUT1 and OUT2 are open-collector. Connect them to a shared pull-up resistor and common node to implement logical AND functionality - the combined output goes low if either comparator asserts. Ensure total sink current does not exceed 23mA (at 2.7V) or 84mA (at 5V) per output, and verify pull-up resistor value maintains VOL ≤150mV under worst-case load. This configuration is commonly used in fault-bus architectures.
What is the typical input bias current of LMV393IDGKR at 25°C?
The typical input bias current of LMV393IDGKR at 25°C is 0.005nA (5pA), with a maximum of 250nA across temperature. This ultra-low value minimizes loading error on high-impedance sources such as thermistors, photodiodes, or RC timing networks. At −40°C to +125°C, bias current rises to ≤400nA max - still sufficiently low for most precision sensing applications without requiring guard traces or active guarding.
Is LMV393IDGKR pin-compatible with standard SOIC-8 comparators?
No, LMV393IDGKR uses the VSSOP-8 (DGK) package - a 3.00mm × 4.40mm surface-mount outline with 0.65mm lead pitch - and is not physically or electrically pin-compatible with SOIC-8 devices like LM393DR. While both have 8 pins and identical functional pin assignments (OUT1, IN1−, IN1+, GND, VCC+, IN2−, IN2+, OUT2), the DGK footprint requires different PCB land patterns and stencil apertures. Migration from SOIC-8 requires board redesign unless using adapter carriers.
LMV393IDGKR 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:
- 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
LMV393IDGKR FAQ
1.How can I place an order for LMV393IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393IDGKR 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 LMV393IDGKR reliable?
The price and inventory of LMV393IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393IDGKR is usually 5 days.
3.What payment methods are accepted for LMV393IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393IDGKR?
LMV393IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393IDGKR 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 LMV393IDGKR?
For technical support, including LMV393IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393IDGKR requirements.
6.How does Aetrix verify that LMV393IDGKR is sourced from the original manufacturer or authorized distributors?
All LMV393IDGKR 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 LMV393IDGKR meets industry standards.
7.What is the process for return or replacement of LMV393IDGKR?
All LMV393IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with LMV393IDGKR, 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 LMV393IDGKR part is unused and in its original packaging.
Return procedure for LMV393IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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