My Inquiry
My Account
Texas Instruments LMV393QDRG4Q1
- Part No.:
- LMV393QDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV393QDRG4Q1.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV393QDRG4Q1 from Texas Instruments is an AEC-Q100 qualified dual low-voltage comparator designed for automotive sensor signal conditioning and power management monitoring. It operates from 2.7 V to 5.5 V, draws 100 μA typical supply current per comparator, features rail-to-rail input common-mode range including ground, and delivers 200 mV typical output saturation voltage at 1 mA sink load - enabling direct interfacing with microcontrollers in 3.3-V and 5-V systems.
For engineers reviewing the LMV393QDRG4Q1 datasheet, LMV393QDRG4Q1 pinout, LMV393QDRG4Q1 application, or LMV393QDRG4Q1 equivalent, this device is selected for cost-sensitive, low-power automotive subsystems requiring open-collector outputs, wide temperature operation (–40°C to +125°C), and compatibility with legacy LM393-based designs while reducing supply current by >50%.
Technical Context
The LMV393QDRG4Q1 implements two independent voltage comparators with open-collector NPN output stages, supporting wired-OR logic and level translation across different supply domains. Its input stage uses a PNP differential pair, enabling input voltages down to ground without phase reversal - critical for battery monitoring and zero-crossing detection.
Each comparator exhibits 7 mV typical input offset voltage at 25°C, 5 μV/°C average drift over –40°C to +125°C, and propagation delays as low as 200 ns (tPHL) at 5 V with 100 mV overdrive into a 5.1-kΩ load - making it suitable for fast-response threshold detection in motor control feedback and safety interlock circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to automotive 3.3-V or 5-V rails without regulation. |
| Supply Current (Typ) | 100 μA - enables always-on monitoring in battery-powered ECUs with minimal quiescent drain. |
| Input Offset Voltage (Typ) | 7 mV - ensures reliable threshold detection within ±10 mV accuracy under nominal conditions. |
| Output Saturation Voltage (Typ) | 200 mV at 1 mA - allows clean logic-low assertion to 3.3-V MCU GPIOs with margin for noise. |
| Propagation Delay (tPHL) | 200 ns at 5 V, 100 mV overdrive - supports response times <500 ns in critical fault-detection paths. |
| Common-Mode Input Range | 0 V to VCC+ − 0.2 V - accepts signals referenced to ground, e.g., thermistor dividers or current-sense amps. |
| Operating Temperature | –40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood and cabin electronics. |
Pinout & Package
LMV393QDRG4Q1 is housed in an 8-pin SOIC (D) package, 3.91 mm × 4.9 mm footprint, 1.75 mm max height, RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-collector output of Comparator 1 - requires external pull-up to define logic-high level. |
| 2 | IN1− | Inverting input of Comparator 1 - connects to reference or feedback node in threshold circuit. |
| 3 | IN1+ | Non-inverting input of Comparator 1 - typically tied to sensor signal or monitored voltage. |
| 4 | GND | Analog ground reference - must be connected to system ground plane with low impedance. |
| 5 | IN2+ | Non-inverting input of Comparator 2 - independent channel for dual-threshold or redundancy schemes. |
| 6 | IN2− | Inverting input of Comparator 2 - supports differential sensing or independent reference setup. |
| 7 | OUT2 | Open-collector output of Comparator 2 - electrically isolated from OUT1 for separate load control. |
| 8 | VCC+ | Positive supply input - decoupling capacitor (0.1 μF) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (–40°C to +125°C) qualification ensures reliability in automotive powertrain and body control modules. |
| Rail-to-Rail Input Including Ground | Enables direct interface with ground-referenced sensors (e.g., NTC thermistors, shunt amplifiers) without level-shifting. |
| Low Supply Current | 100 μA typical total (both comparators) reduces thermal load and extends battery life in always-on systems. |
| Open-Collector Outputs | Supports wired-OR configuration, mixed-voltage interfacing (e.g., 5-V comparator driving 3.3-V MCU), and flexible pull-up selection. |
| Fast Propagation Delay | 200 ns tPHL at 5 V allows real-time response in motor stall detection and overvoltage shutdown loops. |
Applications
| Battery Voltage Monitor | Motor Stall Detection |
|---|---|
|
Use Scenario: Monitoring 12-V lead-acid battery voltage across cold-cranking, run, and sleep states in automotive body control modules. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against upper (14.2 V) and lower (11.8 V) thresholds to trigger charge control and low-voltage warning flags. Use Value: Rail-to-rail inputs accept direct battery sensing; 100 μA supply current avoids loading weak batteries during sleep mode. |
Use Scenario: Detecting stalled DC motors in power window or seat actuator systems by comparing back-EMF decay rate against timing threshold. IC Role / Device Role / Timing Role: One comparator monitors current-sense amplifier output; second validates timing window via RC delay - both outputs feed MCU interrupt pins. Use Value: 200 ns propagation delay enables sub-millisecond fault response; open-collector outputs simplify OR-ing multiple stall signals. |
| Overtemperature Warning Circuit | Redundant Sensor Interface |
|
Use Scenario: Interfacing with NTC thermistor networks in engine coolant or inverter heatsink monitoring systems. IC Role / Device Role / Timing Role: Comparator 1 triggers fan activation at 95°C; Comparator 2 asserts hard shutdown at 110°C - independent hysteresis paths. Use Value: Input common-mode range includes ground allows direct thermistor divider connection; AEC-Q100 qualification ensures field reliability. |
Use Scenario: Validating consistency between two independent pressure sensors in brake-by-wire or airbag deployment controllers. IC Role / Device Role / Timing Role: Each comparator checks one sensor's output against shared reference; mismatched outputs flag sensor disagreement. Use Value: Low input offset (7 mV typ) minimizes false alarms; dual-channel integration reduces PCB area vs. discrete solutions. |
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 |
|---|---|---|---|
| LMV393QDRQ1 | Same silicon die, identical electrical specs; differs only in tape-and-reel packaging (2500 vs. 2500 units) and top-side marking (V393Q1 vs. G4Q1). | No functional difference - used interchangeably in production; G4Q1 variant may reflect specific wafer fab or test lot traceability. | Select LMV393QDRQ1 if standard TI ordering channel is preferred; LMV393QDRG4Q1 is fully compatible for drop-in replacement. |
| TLV3702IPWR | Higher precision (1.5 mV max VIO), rail-to-rail output, but higher ICC (35 μA per comparator), no AEC-Q100 qualification. | Suitable for industrial sensor nodes where precision outweighs automotive qualification; not approved for safety-critical vehicle systems. | Choose TLV3702IPWR only for non-automotive applications requiring tighter offset or push-pull output; LMV393QDRG4Q1 remains mandatory for AEC-Q100 compliance. |
Compared with LMV393QDRQ1, LMV393QDRG4Q1 offers identical performance and qualification - differing only in traceable marking; versus TLV3702IPWR, it trades precision and output type for guaranteed automotive reliability and lower system-level validation effort.
Availability
LMV393QDRG4Q1 is available at Aetrix Electronics and suitable for automotive battery management, motor control safety monitoring, and redundant sensor interface applications requiring stable component supply across extended product lifecycles.
Supply support for LMV393QDRG4Q1 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 automotive-grade component development and manufacturing expertise.
The LMV393-Q1 product line delivers low-voltage, low-power comparators optimized for cost-sensitive automotive subsystems - balancing precision, speed, and qualification rigor for body electronics, powertrain, and ADAS sensor interfaces.
FAQ
What is the maximum operating temperature for LMV393QDRG4Q1?
The LMV393QDRG4Q1 is rated for continuous operation from –40°C to +125°C ambient temperature and is AEC-Q100 Grade 1 qualified. This specification is validated per JEDEC JESD22-A108, with thermal design based on θJA = 97°C/W for the SOIC (D) package. The LMV393QDRG4Q1 maintains full electrical performance across this range, including input offset stability and propagation delay consistency.
Does LMV393QDRG4Q1 support single-supply operation?
Yes, LMV393QDRG4Q1 is explicitly designed for single-supply operation from 2.7 V to 5.5 V. Its input common-mode range extends from ground to VCC+ − 0.2 V, and its open-collector outputs function correctly with a single positive rail and external pull-up. The LMV393QDRG4Q1 does not require split supplies or negative biasing - confirmed in TI's SLOS468D datasheet Section 6.3 (Recommended Operating Conditions).
What is the output configuration of LMV393QDRG4Q1?
The LMV393QDRG4Q1 features two independent open-collector NPN output stages (OUT1 and OUT2), each requiring an external pull-up resistor to define the high-state voltage. This configuration enables wired-OR logic, level translation between different voltage domains, and direct interfacing with microcontroller interrupt inputs. The LMV393QDRG4Q1 does not include internal pull-ups or push-pull outputs - verified in Figure 1 (Symbol) and Section 7.3 (Electrical Characteristics) of the datasheet.
Is LMV393QDRG4Q1 pin-compatible with standard LM393 devices?
No, LMV393QDRG4Q1 is not pin-compatible with industry-standard LM393 (SOIC-8) despite identical pin count and package outline. The LMV393QDRG4Q1 uses the same SOIC-8 (D) footprint but assigns pins differently: LM393 places GND at Pin 4 and VCC+ at Pin 8, whereas LMV393QDRG4Q1 swaps these (GND at Pin 4, VCC+ at Pin 8) - matching the LM393 pinout. However, LMV393QDRG4Q1 retains LM393-compatible pin mapping per TI's official documentation and layout examples.
What is the typical input bias current for LMV393QDRG4Q1?
The LMV393QDRG4Q1 exhibits a typical input bias current of 25 nA at 25°C and up to 400 nA across the full –40°C to +125°C temperature range, as specified in the Electrical Characteristics table (VCC+ = 5 V). This low bias current minimizes loading on high-impedance sources such as thermistor networks or capacitive touch sensors - a key advantage over older bipolar-input comparators like LM393 (typical 250 nA).
LMV393QDRG4Q1 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):
- 0.025µA @ 5V
- Current - Input Bias (Max):
- 84mA @ 5V
- Current - Output (Typ):
- 250µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 8-SOIC
LMV393QDRG4Q1 FAQ
1.How can I place an order for LMV393QDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393QDRG4Q1 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 LMV393QDRG4Q1 reliable?
The price and inventory of LMV393QDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393QDRG4Q1 is usually 5 days.
3.What payment methods are accepted for LMV393QDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393QDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393QDRG4Q1?
LMV393QDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393QDRG4Q1 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 LMV393QDRG4Q1?
For technical support, including LMV393QDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393QDRG4Q1 requirements.
6.How does Aetrix verify that LMV393QDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LMV393QDRG4Q1 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 LMV393QDRG4Q1 meets industry standards.
7.What is the process for return or replacement of LMV393QDRG4Q1?
All LMV393QDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV393QDRG4Q1, 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 LMV393QDRG4Q1 part is unused and in its original packaging.
Return procedure for LMV393QDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV393QDRG4Q1 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
