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Texas Instruments LM2901AVQPWR
- Part No.:
- LM2901AVQPWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2901AVQPWR.pdf
- Description:
- IC COMPARATOR 4 DIFF 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
LM2901AVQPWR 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, 200 µA per comparator quiescent current, 1 µs propagation delay, 2–36 V supply range, and operates across –40°C to +125°C. It enables overvoltage detection in server PSUs and motor drive fault monitoring.
For engineers reviewing the LM2901AVQPWR datasheet, LM2901AVQPWR pinout, LM2901AVQPWR application, or LM2901AVQPWR equivalent, this page delivers verified electrical specs, package-confirmed pin functions, temperature-rated performance data, and direct-fit alternatives for high-reliability embedded control designs.
Technical Context
The LM2901AVQPWR belongs to the B-version family (LM2901B), sharing identical electrical characteristics with LM2901B - including 2 kV HBM ESD rating, ±38 V differential input voltage capability, and rail-to-rail common-mode input range down to ground. Its open-collector outputs interface directly with TTL, CMOS, and MOS logic without level-shifting.
It uses a bipolar process optimized for wide supply operation and input ruggedness, with dedicated internal ESD clamps. The device maintains stable propagation delay (<1 µs) and low offset drift over temperature (±5.5 mV max across –40°C to +125°C), making it suitable for real-time threshold detection in safety-critical power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports wide-input industrial rails and battery-backed systems without external regulation. |
| Input Offset Voltage (max) | ±5.5 mV over –40°C to +125°C - ensures accurate trip-point stability in thermal-varying environments. |
| Quiescent Current | 0.8–1.6 mA total (all four comparators) - enables low-power always-on monitoring in energy-sensitive applications. |
| Propagation Delay | 1 µs typical (5 mV overdrive) - provides fast response for overcurrent/overvoltage fault detection in motor drives and PSUs. |
| Differential Input Voltage | ±38 V - allows direct sensing of high-side signals without attenuators or isolation in 24 V/36 V systems. |
| ESD Rating (HBM) | 2000 V - meets industrial handling requirements and reduces board-level protection component count. |
| Output Type | Open-collector - enables wired-OR logic, flexible pull-up selection (e.g., 3.3 V or 5 V), and compatibility with mixed-voltage systems. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control cabinet deployment. |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm body size), thin shrink small-outline package with exposed pad not present - standard surface-mount footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Open-collector output - requires external pull-up; sinks up to 21 mA at VOL ≤ 400 mV (TA = 25°C). |
| 2 (IN1−) | Comparator 1 inverting input | Negative reference input - accepts voltages from GND to VCC − 2 V; tolerant of inputs up to VCC. |
| 3 (IN1+) | Comparator 1 non-inverting input | Signal input - same voltage range as IN1−; used for threshold comparison against IN1−. |
| 4 (VCC) | Positive supply | Single supply rail - powers all four comparators; supports 2–36 V with no reverse-polarity protection. |
| 5 (OUT2) | Comparator 2 output | Open-collector output - electrically identical to OUT1; enables independent logic-level interfacing. |
| 6 (IN2−) | Comparator 2 inverting input | Second comparator reference input - shares same ruggedness and common-mode range as IN1−. |
| 7 (IN2+) | Comparator 2 non-inverting input | Second comparator signal input - fully independent channel; no crosstalk with other comparators. |
| 8 (GND) | Ground reference | Return path for supply and inputs - must be low-impedance; common-mode range includes ground. |
| 9 (IN3+) | Comparator 3 non-inverting input | Third channel signal input - matches IN1+/IN2+ specs; supports multi-threshold monitoring schemes. |
| 10 (IN3−) | Comparator 3 inverting input | Third channel reference input - identical functionality to IN1−/IN2−. |
| 11 (OUT3) | Comparator 3 output | Open-collector output - functionally redundant with OUT1/OUT2; enables three independent decision paths. |
| 12 (IN4−) | Comparator 4 inverting input | Fourth channel reference input - completes quad configuration; supports full-system status monitoring. |
| 13 (IN4+) | Comparator 4 non-inverting input | Fourth channel signal input - enables simultaneous evaluation of four distinct voltage conditions. |
| 14 (OUT4) | Comparator 4 output | Open-collector output - final decision node; supports fault-bus wiring or individual LED drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for LM2901, LM2901V, LM2901AV | Pin-compatible and electrically identical to legacy A/V-grade variants - no PCB or firmware changes required during upgrade. |
| Extended common-mode input range | Includes ground and extends to VCC − 2 V - enables direct sensing of low-side shunt voltages and battery monitoring without level shifters. |
| Low input bias current (3.5 nA typ) | Minimizes error in high-impedance sensor interfaces (e.g., thermistor dividers, photodiode amps) without added compensation networks. |
| Rail-to-rail input capability | Either input may swing to VCC without damage or malfunction - simplifies design of high-side sensing circuits using resistor dividers. |
| Robust ESD protection (2 kV HBM) | Reduces need for external TVS diodes on input lines in factory automation and motor control I/O modules. |
| Stable performance over temperature | Offset voltage drift ≤ ±5.5 mV across full –40°C to +125°C range - eliminates recalibration in automotive cabin and engine bay applications. |
Applications
| Server Power Supply Monitoring | Industrial Motor Drive Fault Detection |
|---|---|
|
Use Scenario: Real-time monitoring of +12 V, +5 V, +3.3 V, and standby rails in redundant server PSUs to trigger shutdown on undervoltage or overvoltage events. IC Role / Device Role / Timing Role: Quad comparator performs independent voltage window comparisons with programmable thresholds via resistor dividers. Use Value: Enables sub-millisecond fault response using 1 µs propagation delay and open-collector outputs wired to system reset controller. |
Use Scenario: Detecting phase loss, overcurrent, and DC bus overvoltage in 3-phase inverter drives used in HVAC and conveyor systems. IC Role / Device Role / Timing Role: Compares isolated current-sense amplifier outputs and DC-link voltage against fixed references to assert hardware fault flags. Use Value: Provides deterministic, analog-level fault tripping independent of MCU firmware - critical for SIL-2 functional safety compliance. |
| Automotive Body Control Module (BCM) | Factory Automation Sensor Interface |
|
Use Scenario: Monitoring battery voltage, ignition status, door switch states, and lamp filament integrity in 12 V vehicle BCMs operating from –40°C to +125°C. IC Role / Device Role / Timing Role: Four independent comparators condition raw analog inputs into clean digital signals for microcontroller GPIOs. Use Value: Eliminates need for external Schmitt triggers or ADC polling - reduces BOM cost and software overhead while meeting AEC-Q100 Grade 1 requirements. |
Use Scenario: Converting analog outputs from pressure, temperature, and proximity sensors into discrete ON/OFF signals for PLC input cards in harsh industrial environments. IC Role / Device Role / Timing Role: Acts as analog front-end threshold detector - accepts 0–10 V or 4–20 mA loop signals (with conditioning) and drives optocoupler inputs. Use Value: Tolerates wide supply (2–36 V) and input transients (±38 V diff), reducing external protection components and improving system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BQPWR | Identical electrical specs and pinout; differs only in grade marking (B vs AV) - AV denotes enhanced screening per TI's automotive qualification flow. | LM2901BQPWR is rated for –40°C to +125°C but lacks AEC-Q100 documentation; LM2901AVQPWR is explicitly qualified for automotive use. | Select LM2901AVQPWR when AEC-Q100 compliance is contractually required; LM2901BQPWR suffices for industrial temp-range designs. |
| LM339BQPWR | Same B-version core, but rated for –40°C to +85°C ambient (not +125°C); otherwise identical offset, speed, and supply specs. | Not suitable for under-hood or high-temp industrial enclosures; limited to commercial/industrial ambient zones. | Choose LM339BQPWR only if ambient temperature stays below 85°C and automotive qualification is unnecessary. |
Compared with LM2901BQPWR and LM339BQPWR, the LM2901AVQPWR uniquely combines AEC-Q100 alignment, full –40°C to +125°C operation, and drop-in compatibility with legacy LM2901 variants - making it the optimal choice for automotive and high-reliability industrial deployments where qualification traceability matters.
Availability
LM2901AVQPWR is available at Aetrix Electronics and suitable for server PSU monitoring, industrial motor drive fault detection, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2901AVQPWR 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 ICs.
The LM2901AVQPWR belongs to TI's industry-standard quad comparator product line, engineered for robust voltage comparison in automotive, industrial, and computing power systems where reliability, temperature resilience, and qualification compliance are mandatory.
FAQ
What is the maximum supply voltage rating for the LM2901AVQPWR?
The LM2901AVQPWR has an absolute maximum supply voltage of 38 V, with recommended operating range from 2 V to 36 V. This allows direct integration into 24 V and 36 V industrial systems without external regulators, and its ±38 V differential input rating supports high-side sensing without attenuation networks. Exceeding 38 V risks permanent damage per TI's Absolute Maximum Ratings table.
Does the LM2901AVQPWR support rail-to-rail input operation?
Yes - the LM2901AVQPWR accepts input voltages from GND up to VCC − 2 V, and either input can safely reach VCC without damage or incorrect output behavior. This rail-to-rail input capability enables direct connection to high-side resistor dividers and eliminates level-shifting circuitry in battery monitoring and power rail supervision applications using the LM2901AVQPWR.
Is the LM2901AVQPWR pin-compatible with older LM2901 variants?
Yes - the LM2901AVQPWR uses the standard TSSOP-14 footprint and matches the pinout of LM2901, LM2901V, and LM2901AV exactly. Electrical characteristics (offset, speed, supply current) are identical to the LM2901B grade, making it a true drop-in replacement that requires no PCB or schematic modifications when upgrading legacy designs with the LM2901AVQPWR.
What is the guaranteed input offset voltage over temperature for LM2901AVQPWR?
The LM2901AVQPWR guarantees input offset voltage within ±5.5 mV across its full operating temperature range of –40°C to +125°C. At 25°C, typical offset is ±0.37 mV. This tight specification ensures consistent trip-point accuracy in thermal-varying environments such as engine compartments or industrial control cabinets where the LM2901AVQPWR is deployed.
Can the LM2901AVQPWR outputs drive LEDs directly?
Yes - each open-collector output of the LM2901AVQPWR can sink up to 21 mA (typical) with VOL ≤ 400 mV at 4 mA load and 25°C, sufficient to drive standard indicator LEDs with appropriate series resistors. For higher-current loads or logic-level translation, external pull-up resistors (e.g., 10 kΩ to 3.3 V or 5 V) are required, as the LM2901AVQPWR itself does not source current.
LM2901AVQPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-TSSOP
LM2901AVQPWR FAQ
1.How can I place an order for LM2901AVQPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901AVQPWR 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 LM2901AVQPWR reliable?
The price and inventory of LM2901AVQPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901AVQPWR is usually 5 days.
3.What payment methods are accepted for LM2901AVQPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901AVQPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901AVQPWR?
LM2901AVQPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901AVQPWR 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 LM2901AVQPWR?
For technical support, including LM2901AVQPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901AVQPWR requirements.
6.How does Aetrix verify that LM2901AVQPWR is sourced from the original manufacturer or authorized distributors?
All LM2901AVQPWR 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 LM2901AVQPWR meets industry standards.
7.What is the process for return or replacement of LM2901AVQPWR?
All LM2901AVQPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM2901AVQPWR, 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 LM2901AVQPWR part is unused and in its original packaging.
Return procedure for LM2901AVQPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2901AVQPWR Tags
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