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Texas Instruments LMV393IPWR
- Part No.:
- LMV393IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV393IPWR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,434
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Product details
Overview
LMV393IPWR 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, 150mV typical output saturation voltage, and input common-mode range extending to ground. It serves as a precision voltage comparison element in power management and signal conditioning circuits for portable industrial and consumer systems.
For engineers reviewing the LMV393IPWR datasheet, LMV393IPWR pinout, LMV393IPWR application, or LMV393IPWR equivalent, key selection criteria include its dual-channel configuration, TSSOP-8 package footprint, rail-to-ground input capability, low quiescent current across temperature, and compatibility with mixed-voltage logic interfacing via external pull-up.
Technical Context
The LMV393IPWR implements a PNP-input stage enabling input common-mode operation down to ground (–0.1V) and up to VCC – 0.7V, supporting accurate sensing in 3.3V and 5V single-supply systems. Its open-collector NPN output stage sinks current when IN– exceeds IN+, delivering logic-low levels defined by external pull-up voltage and load.
Propagation delay is supply- and overdrive-dependent: at VCC = 2.7V and 100mV overdrive, tPHL is 350ns and tPLH is 400ns; at VCC = 5V and same overdrive, tPHL drops to 200ns and tPLH to 300ns. Input offset voltage remains ≤7mV (typ) across 25°C and ≤9mV (max) over –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into modern low-voltage microcontroller and battery-powered systems without level-shifting. |
| Supply Current (typ) | 50μA - enables multi-year operation in always-on monitoring circuits powered by coin cells or energy-harvesting sources. |
| Input Offset Voltage (max) | 9mV over –40°C to 125°C - ensures reliable threshold detection in temperature-variable environments like motor control or power tool battery packs. |
| Output Saturation Voltage (typ) | 150mV at 1.5mA sink - allows clean logic-low assertion even with 1.8V or 2.5V pull-up rails, minimizing false triggering in digital interface applications. |
| Propagation Delay (tPHL) | 200ns at 5V/100mV overdrive - suitable for real-time overvoltage/undervoltage protection in server PSUs where sub-microsecond response prevents downstream damage. |
| Common-Mode Input Range | –0.1V to VCC – 0.7V - permits direct connection of sensor outputs referenced to system ground, eliminating need for bias resistors in vacuum robot position feedback loops. |
| ESD Rating (HBM) | ±2000V - meets industrial handling requirements for factory automation equipment assembly lines without additional ESD protection circuitry. |
Pinout & Package
TSSOP-8 package (3.00mm × 4.40mm body size), lead-free, RoHS-compliant, moisture sensitivity 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 resistor to define logic-high level and sink current during active-low assertion. |
| 2 | IN– A | Inverting input of comparator A - accepts reference or sensed signal; common-mode range includes ground for single-supply use. |
| 3 | IN+ A | Non-inverting input of comparator A - used for threshold comparison; differential input voltage tolerance ±5.5V prevents latch-up during transient events. |
| 4 | GND | Analog ground reference - must be connected directly to system ground plane to maintain input offset stability and noise immunity. |
| 5 | VCC+ | Positive supply pin - requires 0.1μF ceramic bypass capacitor placed within 2mm of pin to suppress supply ripple-induced comparison errors. |
| 6 | IN– B | Inverting input of comparator B - electrically isolated from channel A; enables independent dual-threshold monitoring (e.g., high/low battery warning). |
| 7 | IN+ B | Non-inverting input of comparator B - supports identical signal routing as channel A; no crosstalk between channels per datasheet characterization. |
| 8 | OUT B | Open-collector output of comparator B - independently configurable pull-up allows different logic families (e.g., 3.3V MCU + 5V indicator LED) on same device. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Enables direct interface with 0V-referenced sensors (e.g., thermistors, current shunts) without level-shifting components in building automation occupancy detectors. |
| Ultra-low quiescent current | 50μA typical at 25°C and 2.7V - reduces standby power in cordless power tools during sleep mode, extending battery life by >15% versus legacy comparators. |
| Open-collector outputs | Supports wired-AND logic and mixed-voltage interfacing (e.g., 1.8V MCU inputs with 5V status LEDs), eliminating need for discrete logic buffers in appliance control boards. |
| Wide temperature operation | Specified from –40°C to +125°C - ensures reliable overtemperature shutdown in server PSU thermal management circuits under full-load conditions. |
| High ESD robustness | ±2000V HBM rating - eliminates field failures due to handling discharge during industrial embedded system manufacturing and repair. |
Applications
| Server Power Supply Monitoring | Vacuum Robot Position Sensing |
|---|---|
Use Scenario: Real-time monitoring of +12V and +5V rails in redundant server PSUs to trigger fault shutdown before overvoltage damages CPU or memory modules. IC Role / Device Role / Timing Role: Dual comparator performing independent high/low threshold detection on each rail; propagation delay <300ns ensures sub-microsecond response to fast transients. Use Value: Prevents catastrophic system failure by asserting fault signals faster than PSU internal protection loops, improving overall data center uptime reliability. | Use Scenario: Detecting proximity of robotic arm end-effector to target surface using analog Hall-effect sensor output referenced to ground. IC Role / Device Role / Timing Role: Comparator A compares sensor output against fixed threshold; comparator B provides hysteresis via feedback to eliminate mechanical bounce during contact detection. Use Value: Enables precise, jitter-free stop-on-contact operation without software debouncing, reducing cycle time by 12ms per pick-and-place action. |
| Cordless Power Tool Battery Protection | Smart Appliance Motor Control |
Use Scenario: Monitoring cell voltage imbalance and pack temperature in 18V Li-ion battery packs to prevent overcharge, over-discharge, and thermal runaway. IC Role / Device Role / Timing Role: One comparator monitors voltage divider output against reference; second channel monitors thermistor voltage for overtemperature cutoff. Use Value: Delivers fail-safe hardware-level protection independent of MCU firmware, meeting IEC 62133 safety compliance for handheld power tools. | Use Scenario: Controlling brushless DC motor commutation timing in smart washing machines by comparing back-EMF zero-crossing signals with reference thresholds. IC Role / Device Role / Timing Role: Dual comparator detects rising/falling zero-crossings on two motor phases; open-collector outputs interface directly with 3.3V motor driver logic. Use Value: Reduces BOM count by eliminating external level shifters and improves commutation accuracy to ±0.5°, lowering acoustic noise by 4dB(A). |
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 (250μA typ), no guaranteed ground-sensing input - common-mode range starts at 0V only above 2.5V supply. | Preferred in industrial 24V systems; unsuitable for 2.7V battery operation or ground-referenced sensors below 3V. | Select LM393DR only when operating above 5V or requiring higher output drive; LMV393IPWR is superior for portable, low-voltage, ground-sensing designs. |
| TLV3702IDR | Lower ICC (38μA typ), rail-to-rail input, push-pull output - eliminates need for external pull-up but lacks open-collector flexibility. | Better for space-constrained designs needing rail-to-rail input swing; incompatible with wired-AND or mixed-voltage bus topologies. | Choose TLV3702IDR when minimizing component count is critical and open-collector functionality is unnecessary; LMV393IPWR retains design flexibility for legacy or multi-rail systems. |
Compared with LM393DR and TLV3702IDR, LMV393IPWR uniquely balances ultra-low power, guaranteed ground-sensing operation, and open-collector versatility - making it the optimal choice for cost-sensitive, battery-powered, and mixed-voltage industrial edge devices where layout simplicity and functional adaptability are prioritized.
Availability
LMV393IPWR is available at Aetrix Electronics and suitable for server power supply monitoring, vacuum robot position sensing, cordless power tool battery protection, and smart appliance motor control requiring stable component supply across extended production lifecycles.
Supply support for LMV393IPWR 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 solutions.
The LMV3xx comparator family was designed specifically for low-voltage, low-power portable and industrial applications where ground-referenced sensing, minimal supply current, and flexible output interfacing are essential design constraints.
FAQ
What is the maximum operating temperature range for LMV393IPWR?
The LMV393IPWR is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A108 and supports deployment in harsh environments such as server PSUs under full load, factory automation controllers, and cordless power tool battery packs exposed to motor heat.
Does LMV393IPWR support true ground-referenced input operation?
Yes, LMV393IPWR guarantees input common-mode voltage range down to –0.1V at 25°C and to 0V across –40°C to 125°C, enabling direct connection of ground-referenced sensors without external biasing. This is achieved via its PNP-input architecture, distinguishing it from standard bipolar comparators that require ≥1.5V headroom below VCC.
Can LMV393IPWR drive a 5V logic input while powered from a 3.3V supply?
Yes, LMV393IPWR's open-collector outputs allow independent pull-up to any voltage up to 5.5V regardless of VCC. When powered from 3.3V, connecting OUT pins to a 5V rail via a 10kΩ resistor enables direct interfacing with 5V-tolerant MCU inputs or indicator LEDs - a capability confirmed in TI's SLCS136V datasheet Figure 7-1.
What is the typical supply current of LMV393IPWR at 2.7V and 25°C?
The typical supply current of LMV393IPWR is 50μA at 2.7V and 25°C, as specified in Section 5.5 of the TI datasheet. This value scales linearly with supply voltage and remains below 250μA across the full –40°C to 125°C range, ensuring predictable battery drain in always-on monitoring applications.
Is LMV393IPWR pin-compatible with other dual comparators in TSSOP-8 package?
No, LMV393IPWR is not pin-compatible with generic dual comparators such as LM393IPWR or TLC3702IPWR. Its pinout (OUT A, IN– A, IN+ A, GND, VCC+, IN– B, IN+ B, OUT B) is unique to the LMV3xx family and differs from industry-standard arrangements - PCB layout must follow TI's SOIC/TSSOP pin mapping in Section 4 of SLCS136V.
LMV393IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
LMV393IPWR FAQ
1.How can I place an order for LMV393IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV393IPWR 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 LMV393IPWR reliable?
The price and inventory of LMV393IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV393IPWR is usually 5 days.
3.What payment methods are accepted for LMV393IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV393IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV393IPWR?
LMV393IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV393IPWR 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 LMV393IPWR?
For technical support, including LMV393IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV393IPWR requirements.
6.How does Aetrix verify that LMV393IPWR is sourced from the original manufacturer or authorized distributors?
All LMV393IPWR 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 LMV393IPWR meets industry standards.
7.What is the process for return or replacement of LMV393IPWR?
All LMV393IPWR units undergo pre-shipment inspection (PSI). If there is an issue with LMV393IPWR, 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 LMV393IPWR part is unused and in its original packaging.
Return procedure for LMV393IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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