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Texas Instruments LM2901VQDRG4Q1
- Part No.:
- LM2901VQDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2901VQDRG4Q1.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
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Product details
Overview
LM2901VQDRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified quad open-drain comparator with 2 V to 32 V supply range, ±0.37 mV typical input offset voltage, 3.5 nA typical input bias current, and 1 µs typical propagation delay. It operates across –40°C to +125°C ambient and supports HEV/EV powertrain voltage monitoring.
For engineers reviewing the LM2901VQDRG4Q1 datasheet, LM2901VQDRG4Q1 pinout, LM2901VQDRG4Q1 application, or LM2901VQDRG4Q1 equivalent, this page delivers verified electrical specs, automotive-grade thermal and ESD performance data, functional safety documentation support, and validated drop-in alternatives for body control module and infotainment system designs.
Technical Context
The LM2901VQDRG4Q1 implements a PNP Darlington-pair input stage enabling rail-to-rail common-mode operation down to ground and up to VCC − 2 V, with input bias current as low as 3.5 nA (typ). Its open-drain NPN output stage supports wired-AND logic and flexible pull-up configuration across 1.8 V to 32 V logic domains.
It features dedicated ESD protection on all pins (±2000 V HBM), operates with single or dual supplies (ΔVCC ≤ 36 V), and maintains stable propagation delay (1 µs typ) and offset voltage (±5.5 mV max over temp) under automotive transients and wide temperature excursions.
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 batteries without regulation |
| Input Offset Voltage (max) | ±5.5 mV over –40°C to +125°C - enables accurate threshold detection in battery voltage monitors |
| Input Bias Current (typ) | 3.5 nA at 25°C - minimizes loading on high-impedance sensor references (e.g., thermistor dividers) |
| Propagation Delay (typ) | 1 µs at 5 V supply - sufficient for fast-response overvoltage/undervoltage fault detection |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 Class 2 requirement for robustness in assembly and vehicle environments |
| Output Configuration | Open-drain NPN - allows level-shifting to MCU I/O voltages (1.8 V, 3.3 V, or 5 V) via external pull-up |
| Operating Temperature | –40°C to +125°C ambient - qualified for engine bay and powertrain module placement |
Pinout & Package
LM2901VQDRG4Q1 is packaged in a 14-pin SOIC (D) with body size 3.91 mm × 8.65 mm, optimized for automated optical inspection and thermal reliability in automotive PCBs.
| 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 drive load |
| 2 (OUT2) | Comparator 1 output | Independent open-drain output - enables discrete fault signaling or OR-ing with other comparators |
| 3 (VCC) | Positive supply | Accepts 2 V–32 V - connects directly to battery rail or regulated 5 V/3.3 V domain |
| 4 (IN2–) | Comparator 1 inverting input | High-impedance Darlington input - tolerates common-mode voltage down to GND |
| 5 (IN2+) | Comparator 1 non-inverting input | Same input structure as IN2– - supports differential or single-ended sensing |
| 6 (IN1–) | Comparator 2 inverting input | Electrically identical to IN2– - pin naming follows TI channel convention (not reversed) |
| 7 (IN1+) | Comparator 2 non-inverting input | Valid common-mode range: (V–) to (V+) – 2.0 V - enables ground-referenced sensing |
| 8 (IN3–) | Comparator 3 inverting input | Shares same input stage - supports multi-threshold monitoring (e.g., pre-charge, main, fault) |
| 9 (IN3+) | Comparator 3 non-inverting input | Compatible with resistive divider references - no internal hysteresis; external hysteresis required |
| 10 (IN4–) | Comparator 4 inverting input | Full 32 V-rated input - withstands transient spikes per ISO 7637-2 without damage |
| 11 (IN4+) | Comparator 4 non-inverting input | Supports bidirectional current sense amplification interface when paired with external gain resistor |
| 12 (GND) | Negative supply / reference | Must be connected to system ground plane - serves as return path for all four comparators |
| 13 (OUT4) | Comparator 4 output | Independent open-drain output - used for isolated fault flag generation (e.g., overtemperature) |
| 14 (OUT3) | Comparator 3 output | Wired-AND capable - can be tied to shared interrupt line with pull-up to host MCU voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with full parametric testing per automotive stress standards |
| Open-drain outputs (4×) | Enables flexible logic-level translation and wired-AND bus architectures without additional logic gates |
| Low input bias current (3.5 nA typ) | Preserves accuracy of high-impedance voltage dividers used in battery cell monitoring circuits |
| Wide supply range (2 V–32 V) | Eliminates need for local LDO in 12 V/24 V systems - reduces BOM count and board space |
| ±2000 V HBM ESD rating | Meets AEC-Q100 Class 2 requirement - ensures robustness during handling and in-vehicle ESD events |
| Functional safety documentation support | Includes FIT rate, failure mode analysis, and diagnostic coverage guidance for ISO 26262 ASIL-B systems |
Applications
| Battery Management System (BMS) | Body Control Module (BCM) |
|---|---|
Use Scenario: Monitoring 12 V battery voltage against undervoltage (10.5 V) and overvoltage (15.5 V) thresholds in start-stop systems. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous window comparison using two channels; remaining two monitor auxiliary rails (e.g., CAN transceiver, LIN bus). Use Value: Enables immediate shutdown or warning activation within 1 µs of threshold breach - critical for protecting downstream ECUs. |
Use Scenario: Detecting door-open status via microswitch closure and interior light dimming via PWM-controlled LED driver feedback. IC Role / Device Role / Timing Role: One comparator senses switch state (pull-up to 12 V); another compares LED current sense voltage to dimming reference. Use Value: Single IC replaces discrete transistor switches and op-amps - reduces footprint by >40% and improves long-term reliability. |
| Infotainment Head Unit | HEV/EV Powertrain Control |
Use Scenario: Validating USB-C port VBUS presence (5 V) and detecting accessory insertion/removal via CC line voltage transitions. IC Role / Device Role / Timing Role: Comparator 1 monitors VBUS ≥4.75 V; comparator 2 detects CC line crossing 0.8 V threshold for orientation detection. Use Value: Open-drain outputs interface directly to 3.3 V MCU GPIOs - eliminates level-shifter IC and associated layout complexity. |
Use Scenario: Monitoring DC-link capacitor voltage pre-charge phase and detecting IGBT gate driver fault conditions. IC Role / Device Role / Timing Role: Two comparators validate pre-charge ramp (e.g., 0–400 V in 500 ms); third checks gate drive enable signal integrity. Use Value: 32 V absolute maximum input rating allows direct connection to pre-charge resistor divider - no attenuation network needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BQDRQ1 | 36 V max supply (vs. 32 V), ±0.37 mV offset (same), 2 kV HBM (same), but higher ESD robustness on all pins | Preferred for 48 V mild-hybrid systems requiring >32 V headroom; identical pinout and footprint | Select LM2901BQDRQ1 when operating above 32 V or requiring enhanced negative input voltage tolerance |
| TL331QDBVRQ1 | Single-channel, SOT-23 package, 2 V–36 V supply, 1.3 µs response, ±7 mV offset (max) | Used where space-constrained PCBs require minimal comparator count per function (e.g., individual fault flags) | Choose TL331QDBVRQ1 for point-of-load monitoring where quad integration is unnecessary and area is critical |
Compared with LM2901BQDRQ1, LM2901VQDRG4Q1 trades 4 V supply headroom for tighter offset drift control in 12 V/24 V systems; versus TL331QDBVRQ1, it delivers four independent functions in one SOIC footprint-reducing component count and interconnect complexity in multi-threshold detection.
Availability
LM2901VQDRG4Q1 is available at Aetrix Electronics and suitable for automotive battery management, body control modules, infotainment systems, and HEV/EV powertrain applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.
Supply support for LM2901VQDRG4Q1 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, embedded processing, and connectivity solutions for automotive, industrial, and personal electronics markets.
The LM2901x-Q1 product line was designed specifically for automotive subsystems requiring high-voltage tolerance, extended temperature operation, and AEC-Q100 qualification - targeting powertrain, chassis, and body electronics.
FAQ
What is the maximum supply voltage for LM2901VQDRG4Q1?
The LM2901VQDRG4Q1 supports a maximum supply voltage of 32 V, as specified in its Recommended Operating Conditions table. This rating applies across the full –40°C to +125°C ambient temperature range and enables direct interface with 24 V automotive systems without external regulation. Absolute maximum supply is 38 V, but sustained operation above 32 V is not recommended per TI's datasheet guidelines.
Does LM2901VQDRG4Q1 have internal hysteresis?
No, LM2901VQDRG4Q1 does not include internal hysteresis. Its comparator inputs are purely differential with no built-in Schmitt trigger functionality. For noise-immune threshold detection, external hysteresis must be added via positive feedback - typically using a resistor from output to the non-inverting input. The datasheet provides design equations and example circuits for implementing user-defined hysteresis levels.
Can LM2901VQDRG4Q1 outputs be wire-OR'd together?
Yes, LM2901VQDRG4Q1 outputs are open-drain NPN structures and can be safely connected together with a single external pull-up resistor to implement wired-AND logic. This configuration is commonly used for shared interrupt lines in automotive ECUs. Ensure total sink current remains below 25 mA per output and that pull-up voltage does not exceed the absolute maximum rating of any connected device.
What is the input common-mode voltage range of LM2901VQDRG4Q1?
The input common-mode voltage range of LM2901VQDRG4Q1 extends from ground (V–) to VCC – 2.0 V over temperature. This allows direct sensing of signals referenced to system ground - such as battery voltage dividers or current-sense amplifier outputs - without level-shifting circuitry. Inputs tolerate brief excursions beyond this range (up to VCC) without damage, though output behavior may be undefined during overrange conditions.
Is LM2901VQDRG4Q1 pin-compatible with standard LM2901-Q1 variants?
Yes, LM2901VQDRG4Q1 is pin-compatible with other 14-pin SOIC variants in the LM2901x-Q1 family, including LM2901QDRQ1 and LM2901BQDRQ1. All share identical pin numbering, electrical pin functions, and mechanical footprint per the SOIC-D package drawing. No PCB redesign is required when upgrading between these variants - only firmware or schematic validation of updated electrical parameters (e.g., offset voltage, supply range) is necessary.
LM2901VQDRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
LM2901VQDRG4Q1 FAQ
1.How can I place an order for LM2901VQDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901VQDRG4Q1 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 LM2901VQDRG4Q1 reliable?
The price and inventory of LM2901VQDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901VQDRG4Q1 is usually 5 days.
3.What payment methods are accepted for LM2901VQDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901VQDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901VQDRG4Q1?
LM2901VQDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901VQDRG4Q1 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 LM2901VQDRG4Q1?
For technical support, including LM2901VQDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901VQDRG4Q1 requirements.
6.How does Aetrix verify that LM2901VQDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LM2901VQDRG4Q1 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 LM2901VQDRG4Q1 meets industry standards.
7.What is the process for return or replacement of LM2901VQDRG4Q1?
All LM2901VQDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2901VQDRG4Q1, 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 LM2901VQDRG4Q1 part is unused and in its original packaging.
Return procedure for LM2901VQDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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