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Texas Instruments LM2901VQDRQ1
- Part No.:
- LM2901VQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2901VQDRQ1.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,313
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Product details
Overview
LM2901VQDRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified quad open-drain automotive comparator operating from 2 V to 32 V supply, with ±0.37 mV typical input offset voltage, 3.5 nA typical input bias current, and 1 µs typical propagation delay. It serves as a precision voltage decision element in HEV/EV powertrain monitoring, body control module threshold detection, and infotainment system level-shifting interfaces.
For engineers reviewing the LM2901VQDRQ1 datasheet, LM2901VQDRQ1 pinout, LM2901VQDRQ1 application, or LM2901VQDRQ1 equivalent, key selection considerations include its 32 V max supply rating (distinct from LM2901B-Q1's 36 V), Grade 1 temperature range (–40°C to +125°C), open-drain output compatibility with TTL/MOS/CMOS, and automotive-grade ESD robustness (2 kV HBM).
Technical Context
The LM2901VQDRQ1 implements four independent PNP Darlington-pair input comparators, enabling high DC gain (>200 V/mV) and low input bias current while supporting common-mode input down to ground and up to VCC – 2 V. Its open-drain NPN output stage allows flexible pull-up configuration and wired-AND logic implementation.
It operates across dual supplies if |V+ – V–| is 2 V to 32 V and V+ exceeds the input common-mode voltage by ≥1.5 V. Input differential voltage tolerance reaches ±36 V, and output sink capability is rated for 4 mA per channel at VOL ≤ 400 mV (TA = 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 32 V - supports direct connection to 12 V/24 V automotive rails without regulation |
| Input Offset Voltage (max) | ±15 mV over –40°C to +125°C - ensures reliable threshold detection under full automotive temperature stress |
| Input Bias Current (typ) | 25 nA - minimizes loading on high-impedance sensor reference networks |
| Propagation Delay (typ) | 1.3 µs at 100 mV overdrive - enables fast response for battery cell voltage monitoring and fault flag generation |
| Output Sink Current | 4 mA per comparator - sufficient to drive standard LED indicators or MCU GPIO with 5.1 kΩ pull-up |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 Class 2 requirement for robustness in assembly and field environments |
| Operating Temperature | –40°C to +125°C ambient - qualified for engine bay, powertrain, and cabin-mounted automotive ECUs |
Pinout & Package
LM2901VQDRQ1 is packaged in a 14-pin TSSOP (PW) with nominal body size 4.40 mm × 5.00 mm, optimized for automated SMT assembly and thermal performance (RθJA = 136.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT2) | Comparator 1 output | Open-drain NPN collector - requires external pull-up; sinks current when IN2– > IN2+ |
| 2 (OUT1) | Comparator 2 output | Open-drain NPN collector - enables wired-AND with other comparators or logic signals |
| 3 (VCC) | Positive supply | Accepts 2 V to 32 V; must exceed input common-mode voltage by ≥1.5 V for valid operation |
| 4 (IN2–) | Comparator 1 inverting input | PNP Darlington input - supports common-mode down to GND; tolerates differential up to ±36 V |
| 5 (IN2+) | Comparator 1 non-inverting input | Same input structure as IN2–; accurate comparison possible even with one input at VCC |
| 6 (IN1–) | Comparator 2 inverting input | Electrically identical to IN2–; channel naming follows TI convention (not transposed) |
| 7 (IN1+) | Comparator 2 non-inverting input | Valid common-mode range: (V–) – 0.1 V to (V+) – 2.0 V - enables ground-referenced sensing |
| 8 (IN3–) | Comparator 3 inverting input | Shares same input stage topology; no internal clamping diodes to VCC/GND |
| 9 (IN3+) | Comparator 3 non-inverting input | Supports rail-to-rail input differential; safe operation with inputs exceeding VCC or below GND by <0.3 V |
| 10 (IN4–) | Comparator 4 inverting input | Four fully independent channels - no crosstalk or shared biasing between comparators |
| 11 (IN4+) | Comparator 4 non-inverting input | Enables simultaneous multi-threshold evaluation (e.g., overvoltage, undervoltage, window detection) |
| 12 (GND) | Negative supply / reference | Return path for all inputs and outputs; exposed pad in WQFN variant must connect to GND |
| 13 (OUT4) | Comparator 4 output | Compatible with 3.3 V or 5 V logic families via appropriate pull-up resistor selection |
| 14 (OUT3) | Comparator 3 output | Configurable as active-low fault indicator or enable signal for downstream power stages |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - eliminates need for derating in under-hood applications |
| Open-drain output architecture | Enables level translation between disparate voltage domains (e.g., 12 V sensor to 3.3 V MCU) |
| Wide 2 V to 32 V supply range | Direct interface with automotive battery systems without pre-regulation - reduces BOM count |
| Low 25 nA typical input bias current | Preserves accuracy in high-impedance divider networks used for battery cell voltage monitoring |
| 2 kV HBM ESD rating | Meets AEC-Q100 Class 2 - ensures reliability during PCB handling and vehicle integration |
| Common-mode input includes ground | Supports single-supply designs with grounded references - simplifies sensor interface circuitry |
Applications
| HEV/EV Battery Management | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Monitoring individual Li-ion cell voltages against overvoltage/undervoltage thresholds in a 48 V traction battery pack. IC Role / Device Role / Timing Role: Quad comparator performing simultaneous high-side and low-side voltage window detection with 1.3 µs response. Use Value: Enables real-time cell balancing trigger and fault isolation without microcontroller intervention. |
Use Scenario: Detecting door ajar, hood open, or trunk latch status using resistive position sensors tied to 12 V battery rail. IC Role / Device Role / Timing Role: Comparator converting analog sensor voltage into clean digital logic-level signals for BCM MCU input. Use Value: Eliminates need for ADC resources and provides noise-immune switching with hysteresis-capable design. |
| Infotainment Display Backlight Control | Powertrain Coolant Level Sensing |
|
Use Scenario: Comparing ambient light sensor output to programmable thresholds to adjust LCD backlight intensity. IC Role / Device Role / Timing Role: Voltage comparator driving PWM dimming circuit via open-drain output with external pull-up. Use Value: Delivers smooth, flicker-free brightness transitions while maintaining low quiescent current (<1.2 mA total). |
Use Scenario: Interfacing with float-switch-based coolant level sensors that output discrete voltage steps relative to chassis ground. IC Role / Device Role / Timing Role: Threshold detector translating analog coolant level into fault/warning flags for engine control unit. Use Value: Provides fail-safe level indication with guaranteed operation across full automotive temperature and supply ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BQDRQ1 | Higher 36 V max supply, ±5.5 mV max offset voltage, improved 2 kV HBM ESD on all pins | Better suited for 48 V mild-hybrid systems requiring extended voltage headroom | Select LM2901BQDRQ1 when operating above 32 V or requiring tighter offset spec over temperature |
| LM2901AQDRQ1 | Lower ±4 mV max offset voltage, same 32 V supply limit, AEC-Q100 Grade 1, but no enhanced ESD | Preferred for precision analog front-ends where offset dominates error budget | Choose LM2901AQDRQ1 for high-accuracy voltage window detection where ESD margin is secondary |
Compared with LM2901VQDRQ1, LM2901BQDRQ1 extends supply range and ESD robustness for next-gen 48 V architectures, while LM2901AQDRQ1 prioritizes offset accuracy for sensor signal conditioning - all share identical TSSOP-14 footprint and pinout.
Availability
LM2901VQDRQ1 is available at Aetrix Electronics and suitable for HEV/EV battery management, body control modules, and infotainment systems requiring stable component supply across automotive production lifecycles.
Supply support for LM2901VQDRQ1 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 automotive, industrial, and personal electronics markets.
The LM2901x-Q1 family was designed specifically for automotive signal-conditioning applications requiring AEC-Q100 qualification, wide supply range, and robust open-drain comparators - targeting powertrain, chassis, and body electronics.
FAQ
What is the maximum supply voltage rating for LM2901VQDRQ1?
The LM2901VQDRQ1 has a maximum supply voltage of 32 V, as specified in the Recommended Operating Conditions table. This distinguishes it from the LM2901B-Q1 variant (36 V max) and aligns with its "V" suffix designation. Operation beyond 32 V risks permanent damage and violates AEC-Q100 qualification boundaries.
Does LM2901VQDRQ1 support rail-to-rail input operation?
LM2901VQDRQ1 does not support true rail-to-rail input. Its common-mode input range extends from ground to VCC – 2.0 V over temperature. However, either input may safely exceed VCC (up to ±36 V differential) without damage, and the comparator delivers correct output as long as at least one input remains within the valid common-mode window.
Can LM2901VQDRQ1 outputs be wire-OR'd together?
Yes - all four outputs of LM2901VQDRQ1 are open-drain NPN structures, enabling direct wired-AND (or negative-logic OR) connection to a shared pull-up resistor. This is commonly used for fault-bus architectures where any comparator asserting low triggers a system-level alert.
What is the input offset voltage specification for LM2901VQDRQ1 over temperature?
The LM2901VQDRQ1 has a maximum input offset voltage of ±15 mV across the full AEC-Q100 Grade 1 temperature range (–40°C to +125°C). At 25°C, typical offset is ±0.37 mV, but design margins must use the worst-case ±15 mV value for safety-critical automotive functions.
Is LM2901VQDRQ1 pin-compatible with non-automotive LM2901 variants?
No - LM2901VQDRQ1 is not pin-compatible with commercial-grade LM2901 devices. While the TSSOP-14 footprint matches, the LM2901VQDRQ1 incorporates automotive-specific ESD structures, tighter process controls, and qualification testing that alter internal layout and electrical behavior. Substitution requires validation per AEC-Q100 requirements.
LM2901VQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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 ~ 36V, ±1V ~ 18V
- :
- 7mV @ 5V
- 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:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 14-SOIC
LM2901VQDRQ1 FAQ
1.How can I place an order for LM2901VQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901VQDRQ1 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 LM2901VQDRQ1 reliable?
The price and inventory of LM2901VQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901VQDRQ1 is usually 5 days.
3.What payment methods are accepted for LM2901VQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901VQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901VQDRQ1?
LM2901VQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901VQDRQ1 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 LM2901VQDRQ1?
For technical support, including LM2901VQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901VQDRQ1 requirements.
6.How does Aetrix verify that LM2901VQDRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2901VQDRQ1 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 LM2901VQDRQ1 meets industry standards.
7.What is the process for return or replacement of LM2901VQDRQ1?
All LM2901VQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2901VQDRQ1, 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 LM2901VQDRQ1 part is unused and in its original packaging.
Return procedure for LM2901VQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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