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Texas Instruments LM2903VQPWRQ1
- Part No.:
- LM2903VQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2903VQPWRQ1.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,354
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Product details
Overview
LM2903VQPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual open-drain comparator for automotive systems, operating from 2 V to 36 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 in HEV/EV powertrain monitoring, body control module voltage supervision, and infotainment system level-shifting interfaces.
For engineers reviewing the LM2903VQPWRQ1 datasheet, LM2903VQPWRQ1 pinout, LM2903VQPWRQ1 application, or LM2903VQPWRQ1 equivalent, key selection criteria include its automotive-grade temperature range (–40°C to +125°C), open-collector TTL/MOS/CMOS-compatible outputs, low 600 µA total quiescent current at 5 V, and guaranteed operation up to 36 V supply with rail-to-rail input common-mode range including ground.
Technical Context
The LM2903VQPWRQ1 implements two independent PNP Darlington-pair input comparators, enabling high gain and fast response while maintaining ultra-low input bias current. Its input stage supports common-mode voltages from ground to VCC – 1.5 V and differential inputs up to ±36 V without damage.
Output logic is implemented via open-drain NPN transistors capable of sinking up to 21 mA per channel, compatible with external pull-up resistors to any logic rail. The device operates on single or split supplies as long as the supply difference remains within 2 V to 36 V and VCC exceeds the input common-mode voltage by ≥1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports wide automotive battery and load-dump conditions without external regulation |
| Input Offset Voltage (typ) | ±0.37 mV - enables precise threshold detection in safety-critical voltage monitoring |
| Input Bias Current (typ) | 3.5 nA - minimizes loading on high-impedance sensor references and divider networks |
| Propagation Delay (typ) | 1 µs - provides timely response for overvoltage/undervoltage fault detection in real-time control loops |
| Quiescent Current (typ) | 600 µA - ensures low power consumption in always-on vehicle subsystems |
| Operating Temperature | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin electronics |
| ESD Rating (HBM) | 2 kV - enhanced robustness against handling and assembly electrostatic discharge events |
Pinout & Package
Packaged in a TSSOP-8 (PW) package measuring 3.00 mm × 4.40 mm, the LM2903VQPWRQ1 features surface-mount compatibility and thermal pad grounding for improved reliability in automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Comparator 1 output | Open-drain NPN collector - requires external pull-up; sinks current when IN– > IN+ + VIO |
| 1IN− | Comparator 1 inverting input | High-impedance PNP Darlington base - accepts signals down to GND and up to VCC − 1.5 V |
| 1IN+ | Comparator 1 non-inverting input | High-impedance PNP Darlington base - supports same voltage range as 1IN− |
| GND | Ground reference | Common return path for supply, inputs, and thermal pad connection |
| 2IN+ | Comparator 2 non-inverting input | Independent high-impedance input - enables dual-threshold or window-comparator configurations |
| 2IN− | Comparator 2 inverting input | Independent high-impedance input - supports differential sensing or reference comparison |
| 2OUT | Comparator 2 output | Open-drain NPN collector - electrically isolated from 1OUT; supports wired-AND logic |
| VCC | Positive supply | Primary power rail - must exceed input common-mode voltage by ≥1.5 V for valid operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across –40°C to +125°C ambient, including HBM 2 kV / CDM 1 kV ESD stress |
| Wide supply voltage range | Operates from 2 V to 36 V - eliminates need for pre-regulation in 12 V/24 V battery systems |
| Input common-mode range includes ground | Enables direct interface with sensors, resistive dividers, and low-side current-sense amplifiers |
| Open-drain outputs | Supports flexible logic-level translation and wired-AND functionality with external pull-ups |
| Low input offset voltage (max) | ±4 mV over full temperature range - ensures consistent trip-point accuracy in harsh environments |
Applications
| HEV/EV Battery Supervision | Body Control Module (BCM) Voltage Monitoring |
|---|---|
Use Scenario: Monitoring cell-string voltages and pack-level overvoltage/undervoltage thresholds in 48 V mild-hybrid and high-voltage traction battery systems. IC Role / Device Role / Timing Role: Dual comparator performs independent high- and low-threshold detection with hysteresis; open-drain outputs drive MCU interrupt lines or fault latches. Use Value: ±0.37 mV offset and 1 µs response enable sub-10 mV threshold resolution and <2 µs fault latency - critical for ASIL-B functional safety compliance. | Use Scenario: Validating regulated 5 V and 3.3 V rails powering microcontrollers, CAN transceivers, and LED drivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: One comparator monitors VDD vs reference; second verifies backup supply presence - both feed OR'd fault signal to system watchdog. Use Value: 2 V to 36 V supply range allows direct connection to main battery; 600 µA IQ avoids loading standby regulators during sleep modes. |
| Infotainment Display Backlight Control | Power Train Coolant Temperature Interface |
Use Scenario: Converting analog thermistor or DAC output into PWM-enabling logic for LED backlight dimming based on ambient light and temperature. IC Role / Device Role / Timing Role: Comparator compares sensor-derived voltage to programmable threshold; output drives gate of external MOSFET or enables PWM generator. Use Value: Rail-to-rail input capability accepts 0–3.3 V sensor outputs directly; open-drain output interfaces seamlessly with 1.8 V/3.3 V logic without level shifters. | Use Scenario: Interfacing NTC thermistor networks in engine coolant and transmission oil circuits to MCU ADC inputs with overtemperature lockout. IC Role / Device Role / Timing Role: Comparator detects temperature breach beyond safe limit; output pulls down MCU reset line or asserts hardware fault flag. Use Value: –40°C to +125°C operation matches under-hood thermal envelope; ±4 mV max offset ensures <±1°C measurement uncertainty at 100°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2903QPWRQ1 | Higher ±15 mV max input offset voltage; 1 mA typical supply current; 1.3 µs typical propagation delay | Limited to less demanding threshold detection where precision and speed are secondary to cost | Select when B-version performance is unnecessary and legacy qualification suffices |
| TLV1702QDRQ1 | Rail-to-rail input; 36 V max supply; 0.9 µs propagation delay; 125 µA IQ; internal hysteresis option | Requires external pull-up but offers lower power and faster response; no AEC-Q100 Grade 0 option | Prefer for new designs needing lower IQ or tighter timing margins, accepting different pinout |
Compared with LM2903QPWRQ1 and TLV1702QDRQ1, the LM2903VQPWRQ1 delivers superior offset accuracy and ESD robustness for mission-critical automotive monitoring, while retaining full pin compatibility with the LM2903-Q1 family and proven field reliability across 20+ years of deployment.
Availability
LM2903VQPWRQ1 is available at Aetrix Electronics and suitable for HEV/EV battery management, body control module voltage supervision, and infotainment display interface applications requiring stable component supply across extended production lifecycles.
Supply support for LM2903VQPWRQ1 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 LM2903-Q1 family was designed specifically for automotive voltage monitoring and fault-detection applications, emphasizing AEC-Q100 qualification, wide supply tolerance, and robust input/output behavior in noisy, thermally aggressive environments.
FAQ
What is the maximum supply voltage rating for LM2903VQPWRQ1?
The LM2903VQPWRQ1 supports a maximum supply voltage of 36 V, verified per absolute maximum ratings in the official datasheet. This rating applies across the full operating temperature range of –40°C to +125°C and enables direct connection to automotive battery rails without external regulation. Exceeding 36 V risks permanent damage to the device.
Does LM2903VQPWRQ1 support rail-to-rail input operation?
The LM2903VQPWRQ1 does not support true rail-to-rail input operation. Its input common-mode voltage range extends from ground to VCC – 1.5 V for the inverting input, while the non-inverting input can tolerate voltages up to 36 V above ground regardless of VCC. This architecture allows ground-referenced sensing and overvoltage-tolerant inputs but requires design attention to input voltage limits relative to supply.
Can LM2903VQPWRQ1 outputs be wire-OR'ed together?
Yes, LM2903VQPWRQ1 outputs can be safely wire-OR'ed due to their open-drain configuration. When multiple outputs share a common pull-up resistor, the combined node goes low if any comparator asserts. This enables hardware-based priority encoding, fault aggregation, or AND logic implementation without additional discrete components - a key feature confirmed in the functional description and typical application schematics.
What is the guaranteed input offset voltage specification for LM2903VQPWRQ1 over temperature?
The LM2903VQPWRQ1 guarantees a maximum input offset voltage of ±4 mV over the full operating temperature range of –40°C to +125°C, as specified in Section 2.9 of the datasheet. This value is distinct from the ±0.37 mV typical value measured at 25°C and reflects worst-case drift across automotive thermal extremes - essential for designing reliable threshold detection in safety-critical systems.
Is LM2903VQPWRQ1 pin-compatible with standard LM2903-Q1 variants?
Yes, LM2903VQPWRQ1 is fully pin-compatible with other LM2903-Q1 family members in the TSSOP-8 (PW) package, including LM2903QPWRQ1 and LM2903BQPWRQ1. Pin functions, physical layout, and thermal pad grounding match exactly, enabling drop-in replacement in existing designs without PCB modification - a documented feature confirmed in TI's orderable addendum and mechanical drawings.
LM2903VQPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Collector, Rail-to-Rail
- 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
- :
- 8-TSSOP
LM2903VQPWRQ1 FAQ
1.How can I place an order for LM2903VQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2903VQPWRQ1 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 LM2903VQPWRQ1 reliable?
The price and inventory of LM2903VQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2903VQPWRQ1 is usually 5 days.
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LM2903VQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2903VQPWRQ1 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 LM2903VQPWRQ1?
For technical support, including LM2903VQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2903VQPWRQ1 requirements.
6.How does Aetrix verify that LM2903VQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2903VQPWRQ1 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 LM2903VQPWRQ1 meets industry standards.
7.What is the process for return or replacement of LM2903VQPWRQ1?
All LM2903VQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2903VQPWRQ1, 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 LM2903VQPWRQ1 part is unused and in its original packaging.
Return procedure for LM2903VQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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