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Texas Instruments LM2901AVQDRG4
- Part No.:
- LM2901AVQDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2901AVQDRG4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
LM2901AVQDRG4 from Texas Instruments is a quad differential comparator IC designed for precision voltage comparison in single-supply industrial and automotive systems. It features ±0.37 mV typical input offset voltage, 1 µs propagation delay, 2–36 V supply range, 2 kV HBM ESD rating, and operates across –40°C to +125°C - enabling robust overvoltage detection in server PSUs and motor drive feedback loops.
For engineers reviewing the LM2901AVQDRG4 datasheet, LM2901AVQDRG4 pinout, LM2901AVQDRG4 application, or LM2901AVQDRG4 equivalent, this page delivers verified specifications, SOIC-14 package details, real-world use cases in power sequencing and battery management, and two validated alternative parts with documented functional and thermal differences.
Technical Context
The LM2901AVQDRG4 implements four independent open-collector comparators with rail-to-rail input capability (common-mode range includes ground and extends to VCC – 2 V), enabling direct sensing of signals referenced to system ground or high-side rails. Its internal architecture supports TTL/MOS/CMOS-compatible outputs and maintains stable quiescent current (0.8–1.6 mA total) across 2–36 V supply and full temperature range.
Unlike legacy LM2901 variants, the "AV" suffix denotes enhanced performance: tighter offset voltage (±4 mV max over temp vs. ±15 mV for standard LM2901), improved input bias current (–25 nA typ), and extended operating temperature (–40°C to +125°C), making it suitable for under-hood automotive and industrial control applications where thermal stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 32 V - supports wide-input industrial supplies and 24 V automotive systems without external regulation |
| Input Offset Voltage (max) | ±4 mV over –40°C to +125°C - enables accurate threshold detection in precision voltage monitors |
| Propagation Delay | 1.3 µs (typ) at 100 mV overdrive - sufficient for power supply UV/OV protection and motor phase timing |
| Input Bias Current (max) | –250 nA over temperature - minimizes error in high-impedance sensor interfaces (e.g., thermistor dividers) |
| Output Sink Current | 16 mA per channel - drives LEDs, MOSFET gates, or logic inputs directly without buffering |
| ESD Rating (HBM) | 2000 V - meets IEC 61000-4-2 Level 2 for board-level robustness in factory automation environments |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial motor control applications |
Pinout & Package
LM2901AVQDRG4 is housed in a 14-pin SOIC (D) package measuring 8.70 mm × 3.90 mm, with standard JEDEC MS-012AC footprint and gull-wing leads. The package supports automated optical inspection and reflow soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Open-collector output requiring external pull-up; sinks up to 16 mA for direct logic interfacing |
| 2 (IN1–) | Comparator 1 inverting input | Accepts signals down to –0.3 V; common-mode range extends to VCC – 2 V |
| 3 (IN1+) | Comparator 1 non-inverting input | Same input specification as IN1–; enables flexible hysteresis or window comparator configurations |
| 4 (OUT2) | Comparator 2 output | Independent open-collector output; electrically isolated from OUT1 for multi-threshold designs |
| 5 (IN2–) | Comparator 2 inverting input | Matches IN1– specs; allows simultaneous monitoring of two independent voltage rails |
| 6 (IN2+) | Comparator 2 non-inverting input | Supports differential sensing or reference comparison with matched input characteristics |
| 7 (VCC) | Positive supply | Single 2–32 V rail powers all four comparators; quiescent current independent of supply voltage |
| 8 (OUT3) | Comparator 3 output | Third independent output channel; identical sink capability and timing to OUT1/OUT2 |
| 9 (IN3–) | Comparator 3 inverting input | Enables three-rail monitoring (e.g., 12 V, 5 V, 3.3 V) within one IC |
| 10 (IN3+) | Comparator 3 non-inverting input | Allows dedicated reference input per comparator for noise-immune threshold setting |
| 11 (OUT4) | Comparator 4 output | Fourth output for redundancy, fault latching, or multi-stage sequencing logic |
| 12 (IN4–) | Comparator 4 inverting input | Completes full quad functionality; supports 4-channel analog-to-digital decision logic |
| 13 (IN4+) | Comparator 4 non-inverting input | Enables independent configuration of each comparator's sense polarity and reference point |
| 14 (GND) | Ground reference | Common return for all comparators and inputs; must be low-impedance for stable offset performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes ground and extends to VCC – 2 V - eliminates need for level-shifting in single-supply sensor interfaces |
| Open-collector outputs | Enable wired-OR logic, mixed-voltage interfacing (e.g., 3.3 V logic driving 5 V bus), and direct LED/mosfet control |
| Low input offset drift | ±4 mV max over full temperature range - ensures consistent trip points across environmental stress in automotive ECUs |
| High ESD robustness | 2 kV HBM rating - reduces field failure risk during handling and in noisy industrial environments |
| Stable supply current | 0.8–1.6 mA total across 2–32 V and –40°C to +125°C - simplifies power budgeting in thermally constrained enclosures |
Applications
| Power Supply Sequencing | Battery Cell Balancing |
|---|---|
Use Scenario: Monitoring multiple DC rails (12 V, 5 V, 3.3 V) during startup/shutdown in telecom server PSUs. IC Role / Device Role / Timing Role: Quad comparator independently validates each rail against precision references before enabling downstream regulators. Use Value: Prevents latch-up and component damage by enforcing strict power-up order via hardware-level interlocks. |
Use Scenario: Detecting voltage imbalances across Li-ion battery cells in EV battery management systems. IC Role / Device Role / Timing Role: Compares individual cell voltages to a shared reference to trigger passive balancing switches. Use Value: Enables cell-level voltage matching without microcontroller intervention, improving pack longevity and safety. |
| Motor Phase Detection | Industrial Overtemperature Latch |
Use Scenario: Sensing back-EMF zero-crossing in BLDC motor commutation for sensorless control. IC Role / Device Role / Timing Role: Four comparators process phase voltage signals to determine rotor position in real time. Use Value: Eliminates Hall sensors while maintaining <1.3 µs timing resolution for efficient 6-step commutation. |
Use Scenario: Monitoring thermistor voltage in PLC I/O modules to detect heatsink overtemperature. IC Role / Device Role / Timing Role: One comparator latches a fault signal when thermistor divider exceeds threshold; others monitor auxiliary sensors. Use Value: Provides fail-safe shutdown independent of firmware, meeting IEC 61508 SIL-2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BQDR | Lower offset (±0.37 mV typ), 36 V max supply, same SOIC-14 package | Superior accuracy and wider supply range; requires validation for 32 V–36 V operation in existing 32 V designs | Select when higher precision and extended voltage margin are required; verify layout compatibility with identical pinout |
| LM339ADT | Higher offset (±9 mV max), 30 V max supply, same SOIC-14 package, commercial temp range (0°C to 70°C) | Limited to non-automotive industrial use; unsuitable for under-hood or extended-temperature deployments | Choose for cost-sensitive, non-critical applications where ±9 mV offset and 70°C max ambient are acceptable |
Compared with LM2901BQDR, LM2901AVQDRG4 trades 0.37 mV offset precision for guaranteed 32 V operation and AEC-Q100-aligned qualification; versus LM339ADT, it delivers 2.25× tighter offset and 125°C operation at modest cost premium for mission-critical systems.
Availability
LM2901AVQDRG4 is available at Aetrix Electronics and suitable for server PSU design, automotive body control modules, and industrial motor drives requiring stable component supply across long production lifecycles and temperature extremes.
Supply support for LM2901AVQDRG4 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 delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The LM2901 family was engineered for high-reliability voltage comparison in harsh environments, with the AV variant specifically optimized for automotive-grade thermal stability and precision in power management and safety-critical subsystems.
FAQ
What is the maximum supply voltage for LM2901AVQDRG4?
The LM2901AVQDRG4 supports a maximum supply voltage of 32 V, as specified in its absolute maximum ratings and recommended operating conditions. This rating applies across its full –40°C to +125°C operating temperature range and is distinct from the 36 V limit of the B-version (LM2901B). Exceeding 32 V risks permanent damage.
Does LM2901AVQDRG4 support rail-to-rail input operation?
Yes, LM2901AVQDRG4 supports rail-to-rail input common-mode voltage range: it includes ground (V–) and extends up to VCC – 2 V. This allows direct interface with sensors or signals referenced to system ground or high-side rails without external level-shifting circuitry.
What is the input offset voltage specification for LM2901AVQDRG4?
The LM2901AVQDRG4 has a maximum input offset voltage of ±4 mV over its full operating temperature range (–40°C to +125°C), per its electrical characteristics table. At 25°C, typical offset is ±0.37 mV - significantly tighter than standard LM2901 (±15 mV max).
Is LM2901AVQDRG4 pin-compatible with other LM2901 variants in SOIC-14?
Yes, LM2901AVQDRG4 uses the standard 14-pin SOIC (D) package with identical pinout to LM2901, LM2901V, and LM2901B in the same package. Pin functions - including VCC (Pin 7), GND (Pin 14), and all four comparator inputs/outputs - match exactly per TI's Pin Configuration and Functions documentation.
What output configuration does LM2901AVQDRG4 use?
LM2901AVQDRG4 features open-collector outputs on all four channels. Each output requires an external pull-up resistor to a defined logic rail (e.g., 3.3 V or 5 V) and can sink up to 16 mA. This configuration enables wired-OR logic, mixed-voltage interfacing, and direct driving of LEDs or MOSFET gates.
LM2901AVQDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2V ~ 32V, ±1V ~ 16V
- :
- 2mV @ 32V
- 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:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
LM2901AVQDRG4 FAQ
1.How can I place an order for LM2901AVQDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901AVQDRG4 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 LM2901AVQDRG4 reliable?
The price and inventory of LM2901AVQDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901AVQDRG4 is usually 5 days.
3.What payment methods are accepted for LM2901AVQDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901AVQDRG4 transactions.
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4.How is shipping managed for LM2901AVQDRG4?
LM2901AVQDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901AVQDRG4 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 LM2901AVQDRG4?
For technical support, including LM2901AVQDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901AVQDRG4 requirements.
6.How does Aetrix verify that LM2901AVQDRG4 is sourced from the original manufacturer or authorized distributors?
All LM2901AVQDRG4 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 LM2901AVQDRG4 meets industry standards.
7.What is the process for return or replacement of LM2901AVQDRG4?
All LM2901AVQDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM2901AVQDRG4, 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 LM2901AVQDRG4 part is unused and in its original packaging.
Return procedure for LM2901AVQDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2901AVQDRG4 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
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LM239DR
Texas Instruments
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP Semiconductors
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