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Texas Instruments LM2901VQPWR
- Part No.:
- LM2901VQPWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2901VQPWR.pdf
- Description:
- IC COMPARATOR 4 DIFF 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,354
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Product details
Overview
LM2901VQPWR 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. It serves as the high-temperature B-version replacement for legacy LM2901 in motor control feedback, power supply monitoring, and battery management circuits.
For engineers reviewing the LM2901VQPWR datasheet, LM2901VQPWR pinout, LM2901VQPWR application, or LM2901VQPWR equivalent, this page delivers verified electrical specs, SOIC-14 package details, real-world use cases in server PSUs and cordless tools, and two validated alternative parts with documented functional and thermal differences.
Technical Context
The LM2901VQPWR implements four independent open-collector comparators with rail-to-rail common-mode input range (down to ground) and differential input capability up to ±38 V. Its internal architecture includes dedicated ESD clamps, enabling robust operation in noisy environments without external protection.
It supports TTL/MOS/CMOS-compatible outputs via external pull-up resistors and maintains stable quiescent current (0.8–1.6 mA total) across 2–36 V supply and full temperature range - critical for wide-input industrial power rails and battery-powered equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - enables direct interface with 3.3 V, 5 V, 12 V, and 24 V system rails without level-shifting. |
| Input Offset Voltage (max) | ±5.5 mV over –40°C to +125°C - ensures accurate threshold detection in temperature-variable applications like motor overheat sensing. |
| Propagation Delay | 1 µs at 5 mV overdrive - supports fast response in overvoltage lockout and PWM timing circuits. |
| Input Bias Current (typ) | 3.5 nA - minimizes loading on high-impedance sensor sources such as thermistor dividers or photodiode amplifiers. |
| ESD Rating (HBM) | 2000 V - meets industrial handling requirements without additional board-level ESD protection components. |
| Output Sink Current | 21 mA per channel - drives standard LEDs, relays, or logic inputs directly with minimal external circuitry. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial motor drive environments. |
Pinout & Package
LM2901VQPWR is housed in a 14-pin SOIC (PW) package measuring 8.70 mm × 3.90 mm, with gull-wing leads and standard JEDEC MS-012 outline. The package supports automated optical inspection and reflow soldering per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-collector output of Comparator 1 - requires external pull-up; sinks current when IN1– > IN1+. |
| 2 | IN1– | Inverting input of Comparator 1 - accepts signals down to ground; tolerates up to VCC + 0.3 V. |
| 3 | IN1+ | Non-inverting input of Comparator 1 - same voltage range as IN1–; used for reference or signal routing. |
| 4 | VCC | Positive supply pin - powers all four comparators; decoupling capacitor recommended near pin. |
| 5 | OUT2 | Open-collector output of Comparator 2 - electrically identical to OUT1; supports wired-OR logic. |
| 6 | IN2– | Inverting input of Comparator 2 - independent channel; shares no internal nodes with other inputs. |
| 7 | IN2+ | Non-inverting input of Comparator 2 - enables dual-threshold or window-comparator configurations. |
| 8 | GND | Ground reference - must be low-impedance connection; ties to PCB ground plane for noise immunity. |
| 9 | IN3– | Inverting input of Comparator 3 - supports third independent comparison stage (e.g., fault + status). |
| 10 | IN3+ | Non-inverting input of Comparator 3 - usable for redundant sensing or multi-zone monitoring. |
| 11 | OUT3 | Open-collector output of Comparator 3 - routed separately to avoid contention with other outputs. |
| 12 | IN4– | Inverting input of Comparator 4 - completes quad functionality; suitable for system enable/disable logic. |
| 13 | IN4+ | Non-inverting input of Comparator 4 - enables fourth independent decision point (e.g., brownout + overtemp). |
| 14 | OUT4 | Open-collector output of Comparator 4 - provides final system-level assertion signal to MCU or latch. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes ground and extends to VCC − 2 V - eliminates need for input biasing networks in single-supply designs. |
| Low quiescent current (1.2 mA typ) | Reduces standby power in always-on systems like building automation controllers and IoT edge nodes. |
| Drop-in replacement for LM2901/LM339 | Pin- and function-compatible with legacy A/V-grade parts - allows design refresh without PCB revision. |
| 2 kV HBM ESD protection | Enables direct integration into unshielded industrial I/O modules without added TVS diodes or layout guard rings. |
| Open-collector outputs | Supports flexible voltage translation and wired-OR bus architectures - simplifies interface to 1.8 V, 3.3 V, or 5 V logic. |
Applications
| Server Power Supply Monitoring | Motor Drive Fault Detection |
|---|---|
|
Use Scenario: Real-time monitoring of +12 V, +5 V, and +3.3 V rails in 1U rack-mount server PSUs to trigger shutdown on undervoltage or overvoltage events. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous rail validation using precision references; outputs feed OR-gated latch feeding BMC microcontroller. Use Value: Achieves <1 µs fault response time and operates reliably at 85°C ambient - meeting ATX and OCP compliance requirements. |
Use Scenario: Detecting phase current imbalance, overtemperature, and DC bus overvoltage in 3-phase BLDC motor drives for cordless power tools. IC Role / Device Role / Timing Role: LM2901VQPWR compares analog sensor outputs against fixed thresholds; outputs drive hardware safety interlocks independent of firmware. Use Value: –40°C to +125°C rating ensures operation during tool stall conditions; 36 V max supply accommodates 24 V nominal + transient spikes. |
| Automotive Body Control Module | Industrial Vacuum Robot Sensing |
|
Use Scenario: Window lift anti-pinch detection using current-sense amplifier output compared against rising/falling thresholds to identify obstruction. IC Role / Device Role / Timing Role: Two comparators form a window detector; third monitors supply integrity; fourth handles wake-up logic from door switch. Use Value: 2 kV HBM rating withstands automotive assembly line ESD events; drop-in compatibility eases AEC-Q100 qualification reuse. |
Use Scenario: Monitoring vacuum pressure transducer output, motor encoder zero-crossing, battery voltage, and thermal cutoff in autonomous cleaning robots. IC Role / Device Role / Timing Role: Each comparator handles one sensor channel; open-collector outputs interface directly to 3.3 V MCU GPIO with pull-ups. Use Value: 3.5 nA input bias avoids error in high-Z pressure bridge circuits; 1.2 mA total IQ extends runtime in battery-operated units. |
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 SOIC-14 package; differs only in temperature grade labeling (B vs V suffix). | No functional difference; both rated –40°C to +125°C and meet same AEC-Q100 stress test profiles. | Select LM2901BQPWR if sourcing from distributors listing B-grade stock; LM2901VQPWR is preferred for automotive traceability documentation. |
| TLV331IPW | Single-channel, rail-to-rail input/output, 1.8–5.5 V supply only; 350 µA IQ; 300 ns response. | Not pin-compatible; requires four devices and more PCB area; unsuitable for >5.5 V rails or industrial temp range. | Choose TLV331IPW only for ultra-low-voltage, space-constrained 3.3 V systems where speed outweighs supply flexibility. |
Compared with LM2901BQPWR, LM2901VQPWR offers identical performance but stronger automotive documentation lineage; versus TLV331IPW, it trades higher speed and lower voltage operation for broad supply range, extended temperature capability, and integrated quad functionality in one SOIC-14 footprint.
Availability
LM2901VQPWR is available at Aetrix Electronics and suitable for server PSU monitoring, motor drive fault detection, and automotive body control modules requiring stable component supply across long production lifecycles.
Supply support for LM2901VQPWR 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 conditioning and power management ICs.
The LM2901VQPWR belongs to TI's industry-standard quad comparator family, engineered for reliability in harsh environments - targeting automotive, industrial automation, and high-availability power systems.
FAQ
What is the maximum supply voltage for LM2901VQPWR?
The absolute maximum supply voltage for LM2901VQPWR is 38 V, with recommended operating range from 2 V to 36 V. This allows direct use with 24 V industrial buses and 36 V battery packs while maintaining specified performance across –40°C to +125°C. Exceeding 38 V risks permanent damage per Absolute Maximum Ratings.
Does LM2901VQPWR support rail-to-rail input operation?
Yes, LM2901VQPWR supports rail-to-rail common-mode input voltage, including ground (V–) and up to VCC – 2 V. Either input can exceed VCC without damage, and proper output state is maintained as long as at least one input remains within the valid common-mode range - enabling direct interface with sensors and dividers referenced to system ground or VCC.
Is LM2901VQPWR pin-compatible with older LM2901 variants?
Yes, LM2901VQPWR is a drop-in replacement for LM2901, LM2901V, and LM2901AV in SOIC-14 (PW) package. Pin functions, spacing, and thermal pad configuration match exactly; no PCB changes are required. Electrical improvements include lower offset voltage, faster response, and enhanced ESD rating - all backward-compatible.
What output configuration does LM2901VQPWR use?
LM2901VQPWR uses open-collector outputs on all four channels. Each output requires an external pull-up resistor to a logic-compatible voltage (e.g., 3.3 V or 5 V). This configuration enables wired-OR logic, level translation, and direct interfacing with TTL, CMOS, or MOS logic families - unlike push-pull outputs, it avoids contention when multiple comparators drive the same bus.
How does LM2901VQPWR handle ESD in industrial environments?
LM2901VQPWR incorporates dedicated on-die ESD clamps providing 2000 V HBM (Human Body Model) protection - exceeding IEC 61000-4-2 Level 2 requirements. This eliminates need for discrete TVS diodes on comparator inputs in typical industrial I/O modules, reducing BOM count and PCB area while maintaining robustness against handling and field-induced transients.
LM2901VQPWR 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
- :
- 7mV @ 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
LM2901VQPWR FAQ
1.How can I place an order for LM2901VQPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901VQPWR 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 LM2901VQPWR reliable?
The price and inventory of LM2901VQPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901VQPWR is usually 5 days.
3.What payment methods are accepted for LM2901VQPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901VQPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901VQPWR?
LM2901VQPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901VQPWR 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 LM2901VQPWR?
For technical support, including LM2901VQPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901VQPWR requirements.
6.How does Aetrix verify that LM2901VQPWR is sourced from the original manufacturer or authorized distributors?
All LM2901VQPWR 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 LM2901VQPWR meets industry standards.
7.What is the process for return or replacement of LM2901VQPWR?
All LM2901VQPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM2901VQPWR, 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 LM2901VQPWR part is unused and in its original packaging.
Return procedure for LM2901VQPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2901VQPWR 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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