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Texas Instruments LM2901AVQDRCM
- Part No.:
- LM2901AVQDRCM
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2901AVQDRCM.pdf
- Description:
- PROTOTYPE
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LM2901AVQDRCM from Texas Instruments is an AEC-Q100 Grade 1 qualified quad open-drain automotive comparator operating from 2 V to 32 V supply, with ±4 mV max input offset voltage, 3.5 nA typical input bias current, and 1.3 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 LM2901AVQDRCM datasheet, LM2901AVQDRCM pinout, LM2901AVQDRCM application, or LM2901AVQDRCM equivalent, this page delivers verified electrical specifications, TSSOP-14 package layout, automotive-grade thermal and ESD performance data, and functional alternatives for safety-critical design validation.
Technical Context
The LM2901AVQDRCM implements four independent PNP Darlington-pair input comparators with rail-to-rail common-mode input range down to ground and up to VCC − 2 V. Its open-drain NPN output stage supports wired-AND logic and flexible pull-up voltage selection across mixed-voltage domains.
It operates over −40°C to +125°C ambient, supports dual-supply configurations (V+ − V− = 2 V to 32 V), and features dedicated ESD protection on all pins per AEC-Q100 Class 1C HBM (±2000 V) and CDM (±1000 V) requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 32 V - enables direct interface with 12 V/24 V automotive batteries and 3.3 V/5 V logic rails without level shifters |
| Input Offset Voltage (max) | ±4 mV over temperature - ensures reliable threshold detection in battery voltage monitoring and motor overcurrent sensing |
| Input Bias Current (typ) | 3.5 nA - minimizes loading error on high-impedance sensor references like thermistor dividers |
| Propagation Delay (typ) | 1.3 µs at 5 V - supports real-time response in window comparators for engine coolant temperature alarms |
| Output Sink Current | 20 mA - drives standard LED indicators or MOSFET gate resistors directly without buffer stages |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 Class 1C for robustness in assembly and field environments |
| Operating Temperature | −40°C to +125°C ambient - certified for under-hood and cabin-mounted automotive ECUs |
Pinout & Package
TSSOP-14 package (4.40 mm × 5.00 mm), thin shrink small-outline package with exposed pad not present; compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 2 output | Open-drain NPN sink - requires external pull-up to define logic-high level and enable wired-AND bus operation |
| 2 (OUT2) | Comparator 1 output | Independent open-drain output - allows separate pull-up voltages for interfacing with different logic families |
| 3 (VCC) | Positive supply | Accepts 2 V–32 V - powers all four comparators; must be ≥1.5 V above input common-mode voltage for valid operation |
| 4 (IN2–) | Comparator 1 inverting input | PNP Darlington input - supports common-mode range from GND to VCC − 2 V; tolerates inputs up to VCC |
| 5 (IN2+) | Comparator 1 non-inverting input | Differential pair input - determines output state based on relative voltage vs. IN2–; no internal hysteresis |
| 6 (IN1–) | Comparator 2 inverting input | Electrically identical to IN2– - channel naming follows TI convention; functionally interchangeable |
| 7 (IN1+) | Comparator 2 non-inverting input | Matches IN2+ behavior - enables dual-threshold or window comparator topologies using two channels |
| 8 (IN3–) | Comparator 3 inverting input | Third independent input pair - used for redundant sensing or multi-zone HVAC control logic |
| 9 (IN3+) | Comparator 3 non-inverting input | Supports same voltage range and bias current specs as IN1+/IN2+ - maintains consistency across all four channels |
| 10 (IN4–) | Comparator 4 inverting input | Final channel input - suitable for fail-safe monitoring of backup power rail or CAN transceiver supply |
| 11 (IN4+) | Comparator 4 non-inverting input | Enables full quad functionality - allows simultaneous comparison of four independent analog signals |
| 12 (GND) | Negative supply reference | System ground return - must be low-impedance path; connects to PCB ground plane for noise immunity |
| 13 (OUT4) | Comparator 4 output | Fourth open-drain output - supports independent load switching or fault-bus aggregation |
| 14 (OUT3) | Comparator 3 output | Third output node - enables parallel logic ORing via external diodes or discrete AND gates |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with full parametric testing - eliminates need for derating in engine bay applications |
| Open-drain outputs with 20 mA sink capability | Enables direct connection to 3.3 V, 5 V, or 12 V logic rails using external pull-ups - simplifies mixed-voltage system integration |
| Input common-mode range includes ground | Allows direct sensing of battery voltage, sensor GND-referenced signals, or low-side current shunt voltages without level shifting |
| ±2000 V HBM ESD rating (Class 1C) | Guarantees robustness during PCB handling and in-vehicle ESD events - reduces field failure risk in production assemblies |
| Low 3.5 nA typical input bias current | Minimizes voltage error in high-impedance divider networks - critical for accurate thermistor or potentiometer-based position sensing |
| 1.3 µs typical propagation delay | Supports sub-millisecond response in safety-critical overvoltage lockout circuits - meets ASIL-B timing constraints in BMS designs |
Applications
| HEV/EV Battery Monitoring | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time detection of cell imbalance or pack overvoltage in 400 V traction battery systems using resistor-divider feedback. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous high/low threshold comparison on four voltage taps to trigger isolation relay shutdown within 1.3 µs. Use Value: Enables fast, deterministic fault response without microcontroller intervention - improves functional safety compliance per ISO 26262. | Use Scenario: Window comparator for door lock actuator current sensing to detect jamming or motor stall conditions. IC Role / Device Role / Timing Role: Two comparators monitor bidirectional current sense amplifier output against upper/lower thresholds; third channel validates supply integrity. Use Value: Reduces BOM count by replacing three discrete comparators with single quad device - lowers PCB area and test cost. |
| Infotainment Cluster Display | Automotive Lighting Control |
Use Scenario: Ambient light sensor signal conditioning to adjust LCD backlight brightness across 0–100,000 lux range. IC Role / Device Role / Timing Role: Comparator compares photodiode output to programmable DAC reference; open-drain output interfaces directly with MCU GPIO. Use Value: Eliminates need for external level shifter - simplifies interface between 12 V sensor supply and 3.3 V MCU I/O. | Use Scenario: Overtemperature protection for LED headlamp drivers using NTC thermistor feedback. IC Role / Device Role / Timing Role: Single comparator triggers thermal shutdown when sensed voltage crosses threshold; remaining channels monitor driver enable and fault flags. Use Value: Provides hardware-level thermal cutoff independent of firmware - prevents LED thermal runaway during software hangs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BQDR | Higher 36 V max supply, ±5.5 mV max offset, 1 µs typical propagation delay, Class 2 HBM ESD | Better suited for 24 V commercial vehicle systems requiring faster response and wider voltage margin | Select when >32 V operation or <1.3 µs delay is required; verify layout compatibility with SOIC-14 footprint |
| TL331QDBVR | Single-channel, SOT-23-5, 2 V–36 V supply, ±7 mV max offset, 200 µA quiescent current | Used where space-constrained single-threshold detection is needed instead of quad functionality | Choose for minimal footprint in distributed sensor nodes; requires four units to match LM2901AVQDRCM channel count |
Compared with LM2901BQDR, LM2901AVQDRCM offers tighter offset and Class 1C ESD for harsher automotive zones but sacrifices 4 V supply headroom; versus TL331QDBVR, it delivers integrated quad functionality at lower per-channel cost and reduced routing complexity in centralized control modules.
Availability
LM2901AVQDRCM is available at Aetrix Electronics and suitable for HEV/EV battery management, body control module development, and infotainment cluster design requiring stable component supply across extended automotive lifecycles.
Supply support for LM2901AVQDRCM 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, embedded processing, and automotive ICs, with decades of AEC-Q100 qualification expertise and broad automotive reference design support.
The LM2901x-Q1 product line was engineered specifically for cost-sensitive automotive subsystems requiring robust, wide-supply-voltage comparators with guaranteed parametric performance across temperature and lifetime.
FAQ
What is the maximum supply voltage rating for LM2901AVQDRCM?
The LM2901AVQDRCM has a maximum supply voltage rating of 32 V, as specified in the Recommended Operating Conditions table. This allows direct connection to 24 V automotive systems while maintaining safe margin below absolute maximum ratings of 36 V. Operation beyond 32 V may violate AEC-Q100 qualification limits and is not recommended for production use.
Does LM2901AVQDRCM support dual-supply operation?
Yes, LM2901AVQDRCM supports dual-supply operation provided the difference between V+ and V− is maintained between 2 V and 32 V, and V+ is at least 1.5 V more positive than the input common-mode voltage. This configuration enables bipolar signal comparison in sensor front-ends while retaining automotive-grade reliability.
What is the purpose of the open-drain output architecture in LM2901AVQDRCM?
The open-drain output in LM2901AVQDRCM allows flexible logic-level translation by using external pull-up resistors to any voltage rail up to 32 V. This enables wired-AND bus configurations, mixed-voltage interfacing (e.g., 12 V sensor to 3.3 V MCU), and direct driving of LEDs or MOSFET gates without additional level-shifting components.
How does the input common-mode range of LM2901AVQDRCM benefit automotive designs?
The LM2901AVQDRCM input common-mode range extends from ground to VCC − 2 V, enabling direct measurement of low-side shunt voltages, battery ground-referenced signals, and sensor outputs without level-shifting circuitry. This simplifies PCB layout, reduces component count, and improves accuracy in current sensing and battery monitoring applications.
Is LM2901AVQDRCM pin-compatible with other devices in the LM2901x-Q1 family?
Yes, LM2901AVQDRCM in TSSOP-14 is pin-compatible with LM2901-Q1, LM2901V-Q1, and LM2901B-Q1 in the same package variant. All share identical pin functions and mechanical footprint, allowing drop-in substitution where electrical parameters (e.g., offset voltage, supply range) meet design requirements.
LM2901AVQDRCM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2V ~ 32V, ±1V ~ 16V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 16mA @ 5V
- Current - Output (Typ):
- 2.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 300ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
LM2901AVQDRCM FAQ
1.How can I place an order for LM2901AVQDRCM through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901AVQDRCM 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 LM2901AVQDRCM reliable?
The price and inventory of LM2901AVQDRCM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901AVQDRCM is usually 5 days.
3.What payment methods are accepted for LM2901AVQDRCM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901AVQDRCM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901AVQDRCM?
LM2901AVQDRCM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901AVQDRCM 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 LM2901AVQDRCM?
For technical support, including LM2901AVQDRCM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901AVQDRCM requirements.
6.How does Aetrix verify that LM2901AVQDRCM is sourced from the original manufacturer or authorized distributors?
All LM2901AVQDRCM 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 LM2901AVQDRCM meets industry standards.
7.What is the process for return or replacement of LM2901AVQDRCM?
All LM2901AVQDRCM units undergo pre-shipment inspection (PSI). If there is an issue with LM2901AVQDRCM, 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 LM2901AVQDRCM part is unused and in its original packaging.
Return procedure for LM2901AVQDRCM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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