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Texas Instruments LM2901QPWRG4Q1
- Part No.:
- LM2901QPWRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2901QPWRG4Q1.pdf
- Description:
- IC COMPARATOR 4 DIFF 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,044
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Product details
Overview
LM2901QPWRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 qualified quad open-drain automotive comparator with 2 V to 36 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 LM2901QPWRG4Q1 datasheet, LM2901QPWRG4Q1 pinout, LM2901QPWRG4Q1 application, or LM2901QPWRG4Q1 equivalent, this page delivers verified technical context, exact pin functions for TSSOP-14, automotive-grade ESD robustness (2 kV HBM), and functional safety documentation support - all critical for body control module and infotainment system design.
Technical Context
The LM2901QPWRG4Q1 implements four independent PNP Darlington-pair input comparators with open-drain NPN outputs, enabling wired-AND logic and flexible level-shifting. Its input stage supports common-mode voltage down to ground and up to VCC – 2 V over temperature.
It features dedicated ESD protection on all pins (2 kV HBM), improved negative input voltage handling versus legacy versions, and operates with single or dual supplies as long as |VCC – VEE| remains within 2 V to 36 V and VCC exceeds input common-mode voltage by ≥1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - enables direct interface with 12 V/24 V automotive batteries and high-side sensing without level shifters |
| Input Offset Voltage (max) | ±5.5 mV over –40°C to +125°C - ensures reliable threshold detection in engine bay temperature extremes |
| Input Bias Current (typ) | 3.5 nA - minimizes loading on high-impedance sensor references like thermistor dividers |
| Propagation Delay (typ) | 1 µs at 5 V supply - supports fast response in overvoltage lockout and battery cell balancing circuits |
| Output Sink Current | 21 mA per comparator - drives standard 5 kΩ pull-up resistors to 5 V or 3.3 V logic levels directly |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 Class 2 requirement for robustness in assembly and field operation |
| Ambient Temp Range | –40°C to +125°C - certified for under-hood and powertrain applications per Grade 1 specification |
Pinout & Package
TSSOP-14 package (4.40 mm × 5.00 mm) with exposed thermal pad connected to GND; pin-compatible with industry-standard LM2901x-Q1 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT2) | Comparator 1 output | Open-drain NPN sink - requires external pull-up; enables wired-AND bus or logic-level translation |
| 2 (OUT1) | Comparator 2 output | Independent open-drain output - allows separate routing to MCU GPIO or LED driver |
| 3 (VCC) | Positive supply | Accepts 2–36 V - powers all four comparators; must exceed input common-mode voltage by ≥1.5 V |
| 4 (IN2–) | Comparator 1 inverting input | PNP Darlington input - supports rail-to-rail common-mode down to GND; max differential ±36 V |
| 5 (IN2+) | Comparator 1 non-inverting input | Same input structure as IN2– - enables precise window or zero-crossing detection |
| 6 (IN1–) | Comparator 2 inverting input | Dedicated input for second channel - electrically identical to IN2–; no crosstalk between comparators |
| 7 (IN1+) | Comparator 2 non-inverting input | Matches IN2+ performance - supports dual-threshold sensing in HVAC or lighting control |
| 8 (IN3–) | Comparator 3 inverting input | Third independent input pair - used for redundant monitoring or multi-sensor voting logic |
| 9 (IN3+) | Comparator 3 non-inverting input | Enables three-channel comparison - e.g., battery pack cell voltage balancing with reference tracking |
| 10 (IN4–) | Comparator 4 inverting input | Fourth channel input - supports fault detection cascades or sequential enable sequencing |
| 11 (IN4+) | Comparator 4 non-inverting input | Completes quad configuration - allows full-system status aggregation before MCU interrupt |
| 12 (GND) | Negative supply / reference | Return path for all comparators and thermal pad - must be low-impedance for stable operation |
| 13 (OUT4) | Comparator 4 output | Final open-drain output - configurable as system fault flag or wake-up signal to low-power domain |
| 14 (OUT3) | Comparator 3 output | Third output channel - supports parallel logic reduction or isolated feedback paths |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one TSSOP-14 package - reduces BOM count and PCB area vs. discrete solutions |
| Open-drain outputs | Wired-AND capability and voltage-level flexibility - interfaces directly with 1.8 V, 3.3 V, or 5 V MCUs without translators |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation - eliminates derating concerns in powertrain and ADAS subsystems |
| 2 kV HBM ESD protection | Enhanced pin-level robustness - reduces need for external TVS diodes in infotainment head unit designs |
| Low 3.5 nA input bias current | Minimal error in high-Z sensor interfaces - preserves accuracy of resistive divider-based battery voltage monitors |
| 1 µs propagation delay | Fast response for real-time protection - enables <10 µs overvoltage shutdown in 48 V mild-hybrid systems |
Applications
| HEV/EV Battery Management | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring individual cell voltages in a 48 V lithium-ion battery pack against upper/lower thresholds. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous overvoltage, undervoltage, and thermal fault detection across four cells. Use Value: Enables sub-10 µs fault response using internal propagation delay and open-drain wired-AND to trigger immediate contactor disconnect. |
Use Scenario: Controlling door lock actuation based on key fob signal strength, window position, and anti-pinch sensor feedback. IC Role / Device Role / Timing Role: Four comparators condition analog sensor signals (potentiometer, Hall effect, IR proximity) into clean digital logic for MCU polling. Use Value: Low input bias current prevents drift in high-resistance potentiometer feedback; rail-to-rail input supports direct connection to 12 V vehicle bus. |
| Infotainment Display Backlight Control | Powertrain Coolant Temperature Monitoring |
Use Scenario: Adjusting LCD backlight intensity based on ambient light sensor output and user-set dimming profile. IC Role / Device Role / Timing Role: Compares ambient photodiode voltage to programmable reference thresholds to generate PWM enable/disable signals. Use Value: 36 V supply tolerance allows direct connection to unregulated 12 V rail; ±0.37 mV offset ensures consistent dimming steps across temperature. |
Use Scenario: Detecting coolant temperature excursions beyond safe operating limits in turbocharged ICE engines. IC Role / Device Role / Timing Role: Compares NTC thermistor voltage to fixed reference to assert fault flags for ECU thermal management. Use Value: Common-mode input range including ground permits direct NTC-to-GND connection; 125°C rating matches engine bay thermal envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901QPWQ1 | Same LM2901B-Q1 die in TSSOP-14 but rated for 2–30 V supply (vs. 2–36 V); ±15 mV max offset voltage (vs. ±5.5 mV) | Limited to 12 V/24 V systems without extended high-voltage margin; less precise for low-overdrive sensor thresholds | Select LM2901QPWRG4Q1 when 36 V operation or <6 mV offset is required - e.g., 48 V mild-hybrid monitoring |
| TL331QDBVRQ1 | Single-channel, SOT-23-5, 2–36 V supply, ±7 mV offset, 1.3 µs propagation delay, 200 nA bias current | Requires four units for quad function; higher board space and assembly cost; no shared supply current advantage | Choose TL331QDBVRQ1 only for space-constrained single-comparator nodes where TSSOP-14 footprint is prohibitive |
Compared with LM2901QPWQ1, LM2901QPWRG4Q1 delivers tighter offset and higher supply headroom essential for next-gen EV architectures; versus TL331QDBVRQ1, it integrates four channels with lower total quiescent current (0.8 mA vs. 4 × 0.2 mA) and reduced layout complexity.
Availability
LM2901QPWRG4Q1 is available at Aetrix Electronics and suitable for HEV/EV battery management, automotive body control modules, and infotainment display systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM2901QPWRG4Q1 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 product line delivers AEC-Q100-qualified quad comparators optimized for automotive subsystems demanding wide supply range, high ESD immunity, and functional safety documentation support.
FAQ
What is the maximum supply voltage rating for LM2901QPWRG4Q1?
The LM2901QPWRG4Q1 supports a maximum supply voltage of 36 V, verified per Absolute Maximum Ratings in the official datasheet. This enables direct use with 48 V mild-hybrid battery systems and eliminates need for external regulators in high-voltage automotive domains. Operation above 36 V risks permanent damage to the LM2901QPWRG4Q1 device.
Does LM2901QPWRG4Q1 support rail-to-rail input common-mode range?
The LM2901QPWRG4Q1 supports common-mode input voltage from ground (V–) up to VCC – 2.0 V across –40°C to +125°C, per Recommended Operating Conditions. While not rail-to-rail on the high side, its ability to accept inputs down to GND and tolerate differential voltages up to ±36 V makes it suitable for direct connection to sensors referenced to chassis ground in automotive applications.
Is LM2901QPWRG4Q1 pin-compatible with legacy LM2901-Q1 variants?
Yes - LM2901QPWRG4Q1 uses the standard TSSOP-14 pinout defined for the LM2901x-Q1 family, matching SOIC-14 and DYY packages electrically. Pin functions (e.g., OUT1, IN1+, GND) are identical across LM2901B-Q1, LM2901-Q1, and LM2901AV-Q1 in TSSOP-14, enabling drop-in replacement where 36 V supply and ±5.5 mV offset meet design requirements.
What is the typical quiescent current of LM2901QPWRG4Q1 at 12 V supply?
At 12 V supply and 25°C, the LM2901QPWRG4Q1 draws 0.8 mA typical total quiescent current across all four comparators, per Electrical Characteristics table. This value increases to 1.2 mA maximum at 36 V and full temperature range, ensuring predictable power budgeting in always-on automotive modules.
How does the open-drain output architecture of LM2901QPWRG4Q1 benefit automotive designs?
The open-drain outputs of LM2901QPWRG4Q1 allow external pull-up to any logic voltage (1.8 V, 3.3 V, 5 V, or 12 V), enabling seamless interfacing with mixed-voltage MCUs and FPGAs. Wired-AND capability also simplifies fault-bus implementation - multiple LM2901QPWRG4Q1 outputs can share one pull-up resistor to assert a single system-fault signal without additional logic gates.
LM2901QPWRG4Q1 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 ~ 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-TSSOP
LM2901QPWRG4Q1 FAQ
1.How can I place an order for LM2901QPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2901QPWRG4Q1 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 LM2901QPWRG4Q1 reliable?
The price and inventory of LM2901QPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2901QPWRG4Q1 is usually 5 days.
3.What payment methods are accepted for LM2901QPWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2901QPWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2901QPWRG4Q1?
LM2901QPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2901QPWRG4Q1 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 LM2901QPWRG4Q1?
For technical support, including LM2901QPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2901QPWRG4Q1 requirements.
6.How does Aetrix verify that LM2901QPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LM2901QPWRG4Q1 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 LM2901QPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of LM2901QPWRG4Q1?
All LM2901QPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2901QPWRG4Q1, 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 LM2901QPWRG4Q1 part is unused and in its original packaging.
Return procedure for LM2901QPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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