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Texas Instruments LM2903VQPWRG4Q1
- Part No.:
- LM2903VQPWRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2903VQPWRG4Q1.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,395
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Product details
Overview
LM2903VQPWRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 automotive dual open-drain comparator with ±0.37 mV typical input offset voltage, 200 µA typical supply current per comparator, and operation across 2 V to 36 V single or dual supplies. It supports ground-sensing inputs and drives TTL/MOS/CMOS logic in body control modules and HEV/EV powertrain monitoring circuits.
For engineers reviewing the LM2903VQPWRG4Q1 datasheet, LM2903VQPWRG4Q1 pinout, LM2903VQPWRG4Q1 application, or LM2903VQPWRG4Q1 equivalent, key selection criteria include its 125°C ambient operating range, 2 kV HBM ESD rating, low input bias current (3.5 nA typ), differential input voltage tolerance up to ±36 V, and compatibility with pull-up configurations for wired-AND logic.
Technical Context
The LM2903VQPWRG4Q1 implements a PNP Darlington-pair input stage enabling high gain, fast response, and input common-mode range extending to ground while maintaining VCM = VCC − 1.5 V at the inverting input. Its open-drain NPN output sinks up to 21 mA and requires external pull-up for logic-level translation.
It operates over −40°C to +125°C ambient temperature with guaranteed performance at 36 V supply, supports differential input voltages up to ±38 V (per LM2903B-Q1 spec), and features dedicated ESD protection on all pins - distinguishing it from legacy LM2903-Q1 variants.
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 rails and 3.3 V/5 V logic without level-shifting circuitry |
| Input Offset Voltage (typ) | ±0.37 mV - improves accuracy in precision threshold detection (e.g., battery cell voltage monitoring) |
| Supply Current (per comparator) | 200 µA typ at 5 V - reduces system power budget in always-on vehicle subsystems |
| Input Bias Current (typ) | 3.5 nA - minimizes error in high-impedance sensor interfaces (e.g., thermistor or potentiometer networks) |
| Propagation Delay (typ) | 300 ns (TTL input) - supports real-time fault detection in motor control or overvoltage shutdown paths |
| Differential Input Voltage | ±36 V - allows direct connection to high-side sensing nodes without clamping diodes |
| ESD Rating (HBM) | 2 kV - meets enhanced robustness requirements for under-hood automotive environments |
Pinout & Package
TSSOP-8 package (3.00 mm × 4.40 mm), moisture sensitivity level 1, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Comparator 1 output | Open-drain NPN sink - requires external pull-up to define logic-high level and enable wired-AND functionality |
| 1IN− | Comparator 1 inverting input | Negative input node of first comparator - accepts signals down to −0.3 V and up to VCC − 1.5 V |
| 1IN+ | Comparator 1 non-inverting input | Positive input node of first comparator - supports common-mode range including ground and up to 36 V |
| GND | Ground reference | Primary return path for supply and signal currents - must be low-impedance for stable comparator operation |
| VCC | Positive supply | Single-supply rail or positive rail of dual supply - supports up to 36 V with no derating |
| 2OUT | Comparator 2 output | Independent open-drain output - electrically isolated from 1OUT for dual-channel decision logic |
| 2IN− | Comparator 2 inverting input | Negative input node of second comparator - identical electrical characteristics to 1IN− |
| 2IN+ | Comparator 2 non-inverting input | Positive input node of second comparator - supports same wide common-mode and overvoltage tolerance as 1IN+ |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C ambient) - validated for engine bay and chassis-mounted applications |
| Input stage architecture | PNP Darlington pair - delivers 3.5 nA typical input bias current and enables ground-referenced sensing |
| Output configuration | Open-drain NPN - permits flexible logic-level translation and wired-AND bus implementation |
| ESD robustness | 2 kV HBM / 1 kV CDM - exceeds baseline AEC-Q100 requirements for harsh automotive assembly and field environments |
| Supply flexibility | Operates from 2 V to 36 V single supply or dual supply with ≥1.5 V headroom - eliminates need for auxiliary regulators in multi-rail systems |
Applications
| Body Control Module (BCM) | HEV/EV Powertrain Monitoring |
|---|---|
Use Scenario: Detecting door-open status via microswitch closure and comparing battery voltage against undervoltage lockout thresholds. IC Role / Device Role / Timing Role: Dual comparator performs independent voltage window and switch-state monitoring with sub-millisecond response. Use Value: Enables fail-safe door warning and battery health reporting using a single IC with minimal external components and no additional power regulation. | Use Scenario: Monitoring DC-link voltage in inverter subsystems and detecting overvoltage conditions during regenerative braking. IC Role / Device Role / Timing Role: High-voltage comparator compares sensed DC-link voltage against programmable thresholds with ±36 V differential input tolerance. Use Value: Provides immediate fault signaling (<300 ns propagation delay) to MCU safety core, supporting ASIL-B functional safety decomposition. |
| Infotainment System Power Sequencing | Automotive Lighting Control |
Use Scenario: Validating proper ramp-up of display backlight supply and audio amplifier rails before enabling downstream logic. IC Role / Device Role / Timing Role: Dual comparator verifies sequential voltage thresholds (e.g., 3.3 V then 5 V) with independent hysteresis control. Use Value: Prevents latch-up and initialization faults by enforcing strict power-up order without FPGA or microcontroller intervention. | Use Scenario: Comparing LED string current sense voltage against dimming reference to trigger PWM duty-cycle adjustment. IC Role / Device Role / Timing Role: Fast-response comparator interfaces with current-sense amplifier output to generate real-time feedback for LED driver ICs. Use Value: Maintains consistent luminance across temperature and aging by closing analog feedback loop with <1 µs total latency. |
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 | Legacy LM2903-Q1 variant; higher 15 mV max offset voltage, 1 kV HBM ESD, 1.3 µs typical response time | Limited to less demanding automotive zones (e.g., cabin electronics); not rated for under-hood thermal stress | Select when cost sensitivity outweighs precision and ESD robustness requirements |
| TLV1702QDRQ1 | Rail-to-rail input, 0.8 mV max offset, 1.2 µA quiescent current, but 36 V max supply and no AEC-Q100 Grade 1 certification | Suitable for low-power infotainment peripherals but lacks full automotive qualification for powertrain use | Choose for ultra-low-power applications where supply voltage stays ≤12 V and ambient temperature ≤85°C |
Compared with LM2903QPWRQ1 and TLV1702QDRQ1, the LM2903VQPWRG4Q1 delivers superior offset accuracy and ESD immunity for critical powertrain functions, while retaining pin compatibility with standard TSSOP-8 footprints and requiring no PCB redesign.
Availability
LM2903VQPWRG4Q1 is available at Aetrix Electronics and suitable for automotive body control modules, HEV/EV powertrain monitoring, and infotainment power sequencing requiring stable component supply across extended lifecycle commitments.
Supply support for LM2903VQPWRG4Q1 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 consumer markets.
The LM2903-Q1 family was designed specifically for automotive-grade voltage comparison tasks - emphasizing reliability across extreme temperatures, high-voltage tolerance, and robustness in noisy electrical environments.
FAQ
What is the maximum supply voltage supported by the LM2903VQPWRG4Q1?
The LM2903VQPWRG4Q1 supports a maximum supply voltage of 36 V, verified per Absolute Maximum Ratings for LM2903B-Q1. This allows direct integration into 24 V commercial vehicle systems and high-side sensing applications without external voltage dividers or regulators. Operation remains stable across the full −40°C to +125°C ambient range at 36 V.
Does the LM2903VQPWRG4Q1 have built-in hysteresis?
No, the LM2903VQPWRG4Q1 does not include internal hysteresis. Hysteresis must be implemented externally using positive feedback from the open-drain output to the non-inverting input. This design choice provides full flexibility to set custom hysteresis thresholds based on application noise margins and switching stability requirements.
Can the LM2903VQPWRG4Q1 operate with a single 3.3 V supply?
Yes, the LM2903VQPWRG4Q1 operates reliably from 2 V to 36 V, including 3.3 V single supply. At 3.3 V, it maintains full functionality: input common-mode range includes ground, output sinks up to 6 mA, and propagation delay remains below 1 µs. Verified performance data is provided in Section 2.9 of the datasheet for VS = 3 V, 5 V, and 12 V.
Is the LM2903VQPWRG4Q1 pin-compatible with standard LM2903 variants?
Yes, the LM2903VQPWRG4Q1 uses the industry-standard TSSOP-8 pinout identical to LM2903-Q1, LM2903B-Q1, and LM2903E-Q1 in the same package. Pin functions (1OUT, 1IN−, 1IN+, GND, VCC, 2OUT, 2IN−, 2IN+) match exactly - enabling drop-in replacement where enhanced offset voltage and ESD performance are required.
What is the purpose of the exposed thermal pad on the LM2903VQPWRG4Q1 package?
The LM2903VQPWRG4Q1 does not use a WSON package with exposed pad; it is packaged in TSSOP-8 (PW), which has no thermal pad. The exposed pad reference applies only to DSG (WSON-8) variants like LM2903BDSGRQ1. For LM2903VQPWRG4Q1, thermal management relies on standard PCB copper pour connected to GND via multiple vias under the package body.
LM2903VQPWRG4Q1 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
LM2903VQPWRG4Q1 FAQ
1.How can I place an order for LM2903VQPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2903VQPWRG4Q1 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 LM2903VQPWRG4Q1 reliable?
The price and inventory of LM2903VQPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2903VQPWRG4Q1 is usually 5 days.
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4.How is shipping managed for LM2903VQPWRG4Q1?
LM2903VQPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2903VQPWRG4Q1 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 LM2903VQPWRG4Q1?
For technical support, including LM2903VQPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2903VQPWRG4Q1 requirements.
6.How does Aetrix verify that LM2903VQPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LM2903VQPWRG4Q1 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 LM2903VQPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of LM2903VQPWRG4Q1?
All LM2903VQPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2903VQPWRG4Q1, 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 LM2903VQPWRG4Q1 part is unused and in its original packaging.
Return procedure for LM2903VQPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2903VQPWRG4Q1 Tags
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