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Texas Instruments LM393APWRG4
- Part No.:
- LM393APWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM393APWRG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,617
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Product details
Overview
LM393APWRG4 from Texas Instruments is a dual voltage comparator IC designed for single-supply operation across 2 V to 36 V, featuring ±0.37 mV typical input offset voltage, 200 µA per comparator quiescent current, and 1 µs propagation delay. It operates in industrial temperature range (−40°C to +85°C) and is widely used in power supply monitoring, motor control feedback, and battery management circuits.
For engineers reviewing the LM393APWRG4 datasheet, LM393APWRG4 pinout, LM393APWRG4 application, or LM393APWRG4 equivalent, key selection criteria include input offset voltage stability over temperature, rail-to-rail input common-mode range including ground, open-collector output compatibility with TTL/MOS/CMOS logic, and drop-in replacement capability for legacy LM393 variants in SOIC-8 and TSSOP-8 footprints.
Technical Context
The LM393APWRG4 implements two independent comparators with internal ESD clamps delivering 2 kV HBM robustness. Its input stage supports common-mode voltages from −0.1 V to (VCC − 2 V), enabling direct sensing of signals referenced to ground or near-rail voltages. The open-collector outputs sink up to 21 mA and interface directly with pull-up resistors to any logic family.
Propagation delay is specified at 1 µs (typical) under 5 V supply with 100 mV input overdrive and 15 pF load. Input bias current remains low at 3.5 nA (typ), minimizing errors in high-impedance sensor interfaces such as thermistor or photodiode networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports wide-input industrial and automotive power rails without external regulation |
| Input Offset Voltage (max) | ±4 mV over −40°C to +85°C - ensures accurate threshold detection in precision level-sensing applications |
| Quiescent Current | 600 µA (typ) at 5 V - enables low-power operation in battery-backed or energy-conscious systems |
| Propagation Delay | 1 µs (typ) - provides fast response for overvoltage/undervoltage protection and PWM timing circuits |
| Input Bias Current (max) | 25 nA - preserves signal integrity when interfacing with high-impedance sources like RTDs or capacitive sensors |
| Output Sink Current | 21 mA (min) - drives LEDs, relays, or logic gates directly without external buffer stages |
| ESD Rating (HBM) | 2000 V - meets industrial handling requirements and improves board-level reliability during assembly |
Pinout & Package
The LM393APWRG4 is housed in an 8-pin TSSOP package (3.00 mm × 4.40 mm body size) with exposed thermal pad connected to GND for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Comparator 1 output | Open-collector output requiring external pull-up; sinks current when comparator 1 output is low |
| 1IN− | Comparator 1 inverting input | Negative reference input for comparator 1; accepts voltages down to −0.1 V |
| 1IN+ | Comparator 1 non-inverting input | Signal input for comparator 1; supports full common-mode range up to VCC − 2 V |
| GND | Ground reference | Common return path for supply and inputs; thermal pad must be soldered to PCB ground plane |
| 2IN+ | Comparator 2 non-inverting input | Signal input for comparator 2; electrically identical to 1IN+ with independent operation |
| 2IN− | Comparator 2 inverting input | Negative reference input for comparator 2; supports same voltage range as 1IN− |
| 2OUT | Comparator 2 output | Independent open-collector output; may be wired-OR'd with 1OUT if required |
| VCC | Positive supply | Single supply input supporting up to 36 V; quiescent current independent of supply voltage |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range including ground | Enables direct sensing of 0 V referenced signals (e.g., current shunt, battery negative terminal) without level-shifting circuitry |
| Open-collector outputs compatible with TTL/MOS/CMOS | Allows flexible logic interfacing and wired-OR configurations for multi-comparator alarm aggregation |
| 2 kV HBM ESD rating | Reduces need for external transient protection in factory automation and motor drive I/O modules |
| Drop-in replacement for LM393/LM293 | Preserves existing PCB layout and firmware while upgrading offset, speed, and supply voltage capability |
| Low 3.5 nA input bias current | Minimizes voltage error in high-Z sensor interfaces, critical for precision thermistor or pH probe conditioning |
Applications
| Power Supply Monitoring | Motor Control Feedback |
|---|---|
Use Scenario: Real-time detection of overvoltage, undervoltage, or brownout conditions in server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: Dual comparator monitors upper and lower thresholds on DC bus voltage using resistor-divider references. Use Value: Fast 1 µs response ensures immediate shutdown before downstream components are damaged. | Use Scenario: Monitoring back-EMF zero-crossing or hall-effect sensor outputs in BLDC motor commutation. IC Role / Device Role / Timing Role: Comparator 1 detects rising edge of hall signal; Comparator 2 validates polarity and timing window. Use Value: Low input offset (±4 mV max) prevents false triggering during low-speed rotation or noisy environments. |
| Battery Management System | Industrial Sensor Interface |
Use Scenario: Cell voltage balancing and charge/discharge enable/disable in 12 V lead-acid or LiFePO4 packs. IC Role / Device Role / Timing Role: One comparator compares cell voltage to reference; second monitors temperature via NTC thermistor. Use Value: Rail-to-rail input allows direct connection to battery terminals without level shifters, reducing BOM count. | Use Scenario: Converting analog outputs from pressure transducers or proximity sensors into digital logic levels. IC Role / Device Role / Timing Role: Comparator 1 converts sensor output to ON/OFF signal; Comparator 2 provides hysteresis via feedback resistor. Use Value: 25 nA max input bias current avoids loading high-output-impedance sensors (<1 MΩ), preserving accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393PWR | Same TSSOP-8 package; older LM393 version with ±9 mV max offset and 1.3 µs response time | Lower accuracy and slower response; suitable only where cost is primary constraint and performance margin exists | Select LM393PWR only for legacy redesigns where no specification change is permitted |
| TLV3702IDR | Rail-to-rail input/output, 1.8 V to 16 V supply, 380 µA total IQ, 1.5 µs propagation delay | Requires lower supply voltage; not rated for >16 V operation; better for ultra-low-voltage portable designs | Choose TLV3702IDR when operating below 16 V and needing rail-to-rail output swing |
Compared with LM393PWR and TLV3702IDR, the LM393APWRG4 delivers superior offset voltage (±4 mV vs. ±9 mV), faster response (1 µs vs. 1.3–1.5 µs), and wider supply range (2–36 V vs. 2–30 V or 1.8–16 V), making it optimal for industrial power and motor control where robustness and precision are critical.
Availability
LM393APWRG4 is available at Aetrix Electronics and suitable for power supply monitoring, motor control feedback, and battery management systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM393APWRG4 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 experience in precision analog IC design and high-volume manufacturing.
The LM393x family was developed for general-purpose voltage comparison in industrial, automotive, and consumer systems, emphasizing reliability, wide supply range, and ease of use in single-supply architectures.
FAQ
What is the maximum supply voltage rating for LM393APWRG4?
The LM393APWRG4 supports a maximum supply voltage of 36 V, as confirmed by TI's SLCS005AH datasheet Absolute Maximum Ratings table. This exceeds legacy LM393 versions (rated to 30 V), enabling direct use in 24 V industrial rails and 32 V telecom systems without derating. Operation above 36 V risks permanent damage.
Does LM393APWRG4 support input voltages below ground?
Yes - the LM393APWRG4 allows input voltages down to −0.1 V relative to GND, per Recommended Operating Conditions. This enables direct interface with signals referenced to negative rails or current-sense shunts on the low side of loads. Going below −0.3 V risks incorrect output states and excessive input current.
Can LM393APWRG4 replace LM393PWR on the same PCB?
Yes - LM393APWRG4 is a drop-in replacement for LM393PWR in TSSOP-8 packages. Both share identical pinout, footprint, and electrical interface. The upgrade delivers improved offset (±4 mV vs. ±9 mV), faster response (1 µs vs. 1.3 µs), and higher ESD rating (2 kV vs. 2 kV HBM, but with dedicated clamps), with no layout changes required.
What is the typical quiescent current of LM393APWRG4 at 5 V supply?
At 5 V supply and 25°C, the LM393APWRG4 draws 600 µA typical quiescent current (IQ), as specified in Section 5.5 of the datasheet. This value increases slightly with temperature and supply voltage, reaching up to 800 µA at 36 V and full temperature range - critical for battery-powered designs where standby current impacts runtime.
Is LM393APWRG4 RoHS compliant and lead-free?
Yes - LM393APWRG4 is RoHS compliant and lead-free, as indicated by the "G4" suffix in the part number per Texas Instruments' packaging nomenclature. The device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified for Pb-free reflow soldering processes up to 260°C peak.
LM393APWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V, ±1V ~ 18V
- :
- 2mV @ 30V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 2.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
LM393APWRG4 FAQ
1.How can I place an order for LM393APWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM393APWRG4 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 LM393APWRG4 reliable?
The price and inventory of LM393APWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM393APWRG4 is usually 5 days.
3.What payment methods are accepted for LM393APWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM393APWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM393APWRG4?
LM393APWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM393APWRG4 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 LM393APWRG4?
For technical support, including LM393APWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM393APWRG4 requirements.
6.How does Aetrix verify that LM393APWRG4 is sourced from the original manufacturer or authorized distributors?
All LM393APWRG4 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 LM393APWRG4 meets industry standards.
7.What is the process for return or replacement of LM393APWRG4?
All LM393APWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM393APWRG4, 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 LM393APWRG4 part is unused and in its original packaging.
Return procedure for LM393APWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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