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Texas Instruments LMV393ID
- Part No.:
- LMV393ID
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV393ID.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,785
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Product details
Overview
LMV393ID from Texas Instruments is a dual, low-voltage, open-collector comparator IC operating from 2.7 V to 5.5 V, delivering 50 μA typical supply current, 150 mV typical output saturation voltage, and input common-mode range extending to ground - enabling precise threshold detection in battery-powered and space-constrained systems such as cordless power tools and server PSUs.
For engineers reviewing the LMV393ID datasheet, LMV393ID pinout, LMV393ID application, or LMV393ID equivalent, key selection criteria include its dual-channel open-drain architecture, rail-to-rail input capability down to GND, low quiescent current across temperature (–40°C to +125°C), and compatibility with mixed-voltage logic interfacing via external pull-up.
Technical Context
The LMV393ID implements a PNP-input stage enabling input common-mode operation down to 0 V, with differential input voltage tolerance of ±5.5 V and guaranteed functionality up to 5.5 V supply. Its open-collector NPN output stage supports wired-AND logic, level shifting, and flexible pull-up configuration - critical for interfacing with 1.8 V, 3.3 V, or 5 V microcontrollers.
It features 7 mV typical input offset voltage (25°C), 5 μV/°C average temperature coefficient, and propagation delays of 600 ns (tPHL) / 450 ns (tPLH) at 5 V with 100 mV overdrive - optimized for fast, low-power voltage monitoring in industrial control and building automation systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports single-supply operation from Li-ion (3.0–3.7 V) and USB (5 V) rails without level-shifting circuitry. |
| Supply Current (Typ) | 50 μA - enables multi-year battery life in always-on sensing nodes and portable appliances. |
| Input Offset Voltage (Typ) | 7 mV - ensures reliable detection of small signal differences (e.g., thermistor or current-sense thresholds) without trimming. |
| Output Saturation Voltage (Typ) | 150 mV @ 1.5 mA - minimizes voltage drop during sinking, preserving noise margin when driving 3.3 V logic with 10 kΩ pull-up. |
| Propagation Delay (5 V, 100 mV OD) | tPHL = 200 ns, tPLH = 300 ns - sufficient for <5 MHz window-comparator timing in PSU OVP/UVP circuits. |
| Input Common-Mode Range | –0.1 V to (VCC – 0.7 V) - allows direct connection of grounded sensors (e.g., NTC thermistors) without biasing resistors. |
| ESD Rating (HBM) | ±2000 V - meets IEC 61000-4-2 Level 2 requirements for robustness in factory automation environments. |
Pinout & Package
LMV393ID is housed in an 8-pin SOIC (D) package measuring 3.91 mm × 4.90 mm, with standard 1.27 mm pitch and gull-wing leads compatible with automated SMT assembly and IPC-7351B footprint IPC-7351B SOIC-N-8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-collector output of Comparator A - requires external pull-up to define logic HIGH level; sinks current when IN– > IN+. |
| 2 | IN– A | Inverting input of Comparator A - accepts signals down to GND; referenced against IN+ A for threshold comparison. |
| 3 | IN+ A | Non-inverting input of Comparator A - used for reference voltage or signal input; common-mode range includes ground. |
| 4 | GND | Analog ground reference - must be connected to system ground plane with low-inductance path to minimize noise coupling. |
| 5 | VCC+ | Positive supply pin - bypass with 0.1 μF ceramic capacitor close to pin to suppress supply transients affecting comparison accuracy. |
| 6 | IN– B | Inverting input of Comparator B - electrically isolated from Channel A; supports independent dual-threshold monitoring. |
| 7 | IN+ B | Non-inverting input of Comparator B - enables simultaneous high/low window detection or redundant sensing paths. |
| 8 | OUT B | Open-collector output of Comparator B - independently configurable pull-up; supports OR-wired fault signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 2.7 V supply - eliminates need for LDO pre-regulation in 3.3 V systems, reducing BOM count and power loss. |
| Ground-sensing inputs | Input common-mode range includes 0 V - enables direct interface with grounded sensors (e.g., RTD, thermocouple cold-junction compensation) without level-shifting networks. |
| Open-collector outputs | Supports wired-AND logic, mixed-voltage interfacing (e.g., 3.3 V MCU with 5 V bus), and programmable hysteresis via feedback resistor. |
| Low input bias current | 250 nA max (25°C) - preserves accuracy in high-impedance reference divider networks (e.g., 1 MΩ dividers for 12-bit ADC references). |
| Wide temperature range | Specified from –40°C to +125°C - qualified for under-hood automotive modules, industrial motor drives, and server PSU thermal monitoring. |
Applications
| Server Power Supply Monitoring | Cordless Power Tool Battery Management |
|---|---|
|
Use Scenario: Real-time overvoltage (OVP) and undervoltage (UVP) protection in 12 V/48 V server PSUs using precision resistor dividers. IC Role / Device Role / Timing Role: Dual comparator performing independent high-threshold (OVP) and low-threshold (UVP) detection with latchable outputs. Use Value: 50 μA supply current extends standby runtime; 150 mV VOL ensures clean logic-low assertion into 3.3 V supervisor ICs without additional buffering. |
Use Scenario: Cell voltage monitoring and pack-level charge/discharge enable/disable in 10S–20S Li-ion battery packs. IC Role / Device Role / Timing Role: One channel monitors top-cell voltage vs reference; second channel checks bottom-cell voltage for imbalance detection. Use Value: Ground-referenced inputs eliminate need for high-side sensing circuitry; 7 mV VIO enables accurate ±20 mV cell voltage window detection. |
| Factory Automation Sensor Interface | Building Automation Occupancy Detection |
|
Use Scenario: Threshold-triggered response to analog sensor outputs (e.g., pressure, flow, proximity) in PLC I/O modules. IC Role / Device Role / Timing Role: Comparator converting 0–10 V or 4–20 mA sensor signals into clean digital on/off signals for microcontroller GPIO. Use Value: Open-collector outputs interface directly with 24 V PLC backplane logic; 200 ns propagation delay supports sub-millisecond response in safety-critical loops. |
Use Scenario: Passive infrared (PIR) motion detector output conditioning with adjustable sensitivity and ambient light rejection. IC Role / Device Role / Timing Role: Dual comparator implementing window comparator for PIR signal envelope detection and daylight-sensing reference comparison. Use Value: Low 50 μA ICC enables battery-powered wireless occupancy sensors with >2-year shelf life; –40°C to +125°C rating covers outdoor HVAC installations. |
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 | Same silicon die and electrical specs; SOIC-8 package with identical pinout and markings (MV393I), but active status and full production support. | No functional difference - direct replacement where LMV393ID is obsolete per TI's packaging addendum. | Select LMV393DR for new designs requiring guaranteed long-term availability and TI's latest manufacturing release. |
| TLV3702IDR | Lower 35 μA supply current, rail-to-rail input (0 V to VCC), but higher 1.8 V minimum supply and no guaranteed operation below –40°C. | Better suited for ultra-low-power wearable sensors; not recommended for industrial temp-range or 2.7 V battery cutoff applications. | Choose TLV3702IDR only if supply voltage stays ≥3.0 V and ambient temperature remains >–20°C. |
Compared with LMV393ID, LMV393DR offers identical performance with assured supply continuity, while TLV3702IDR trades wider temperature and lower-VCC support for marginal quiescent current reduction - making LMV393DR the preferred upgrade path for legacy LMV393ID designs.
Availability
LMV393ID is available at Aetrix Electronics and suitable for server PSU monitoring, cordless power tool battery management, and factory automation sensor interface requiring stable component supply across extended product lifecycles.
Supply support for LMV393ID 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 analog ICs and industrial-grade components.
The LMV393ID belongs to TI's general-purpose low-voltage comparator family, designed specifically for cost-sensitive, space-constrained applications demanding ground-sensing capability, low power, and robust operation across industrial temperature ranges.
FAQ
What is the maximum supply voltage for LMV393ID?
The absolute maximum supply voltage for LMV393ID is 5.5 V. Operation beyond this risks permanent damage. The device is fully specified from 2.7 V to 5.5 V, with all electrical characteristics guaranteed across that range - including 50 μA typical supply current and 150 mV typical output saturation voltage at both 2.7 V and 5 V supplies.
Does LMV393ID support rail-to-rail input operation?
LMV393ID does not support full rail-to-rail input - its input common-mode range extends from –0.1 V to (VCC – 0.7 V). This means it accepts signals down to ground (enabling true ground-sensing), but the upper limit is ~0.7 V below VCC due to its PNP input stage. For example, at 5 V supply, max input is 4.3 V; at 2.7 V, max is 2.0 V.
Can LMV393ID drive a 5 V logic input directly?
Yes - LMV393ID's open-collector outputs can drive 5 V logic inputs when paired with a 5 V pull-up resistor. Since the output is high-impedance when not sinking, the pull-up defines the logic HIGH level. Ensure the sink current (≤23 mA at 2.7 V, ≤84 mA at 5 V) and resulting VOL (≤150 mV typical) meet the driven device's VIH/VIL thresholds.
Is LMV393ID pin-compatible with LM393?
No - LMV393ID (SOIC-8) shares the same pinout as LM393, but LM393 is rated for 5 V to 36 V operation and lacks guaranteed performance below 5 V. LMV393ID is optimized for 2.7–5.5 V and features lower supply current (50 μA vs ~500 μA) and ground-sensing inputs. Electrical substitution requires validation of supply voltage and input range compatibility.
What is the operating temperature range of LMV393ID?
LMV393ID is specified for continuous operation from –40°C to +125°C ambient temperature. All key parameters - including input offset voltage (±9 mV max), supply current (250 μA max), and propagation delay - are guaranteed across this full industrial temperature range, making it suitable for under-hood automotive, industrial motor control, and telecom infrastructure applications.
LMV393ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
LMV393ID FAQ
1.How can I place an order for LMV393ID through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393ID 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 LMV393ID reliable?
The price and inventory of LMV393ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393ID is usually 5 days.
3.What payment methods are accepted for LMV393ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393ID?
LMV393ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393ID 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 LMV393ID?
For technical support, including LMV393ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393ID requirements.
6.How does Aetrix verify that LMV393ID is sourced from the original manufacturer or authorized distributors?
All LMV393ID 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 LMV393ID meets industry standards.
7.What is the process for return or replacement of LMV393ID?
All LMV393ID units undergo pre-shipment inspection (PSI). If there is an issue with LMV393ID, 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 LMV393ID part is unused and in its original packaging.
Return procedure for LMV393ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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