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Texas Instruments LM2903PS-MAND
- Part No.:
- LM2903PS-MAND
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
LM2903PS-MAND.pdf
- Description:
- DUAL DIFFERENTIAL COMPARATORS
- Quantity:
- Payment:
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Inventory:14,982
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Product details
Overview
LM2903PS-MAND from Texas Instruments is a dual differential comparator IC designed for single- or dual-supply operation across 2 V to 36 V. It delivers 7 mV max input offset voltage at 25°C, 0.4 mA typical supply current per comparator, and rail-to-rail common-mode input range including ground - enabling robust level detection in automotive body control modules.
For engineers reviewing the LM2903PS-MAND datasheet, LM2903PS-MAND pinout, LM2903PS-MAND application, or LM2903PS-MAND equivalent, this device supports open-collector wired-AND outputs compatible with TTL/MOS/CMOS, operates from –40°C to 125°C, and features ±36 V differential input voltage tolerance - critical for industrial sensor interface and battery monitoring designs.
Technical Context
The LM2903PS-MAND implements two independent comparators using bipolar transistor architecture with internal current regulation (80 µA per side). Its input stage accepts common-mode voltages down to ground and up to VCC–2 V across full temperature range, while output transistors support open-collector sinking up to 6 mA per channel.
No internal phase compensation is required; propagation delay is 0.3 µs typical (TTL-level step, CL = 15 pF), and input bias current remains below –250 nA over –40°C to 125°C - ensuring stable threshold detection in high-impedance voltage divider networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports direct connection to 12 V/24 V automotive batteries without regulation |
| Input Offset Voltage (max) | 7 mV at 25°C - sets minimum detectable voltage difference in precision window comparators |
| Input Bias Current (typ) | –25 nA at 25°C - enables use with >1 MΩ source impedances without significant error |
| Common-Mode Input Range | 0 V to VCC–2 V - allows direct sensing of signals referenced to ground in single-supply systems |
| Output Sink Current | 6 mA at VOL ≤ 400 mV - drives LEDs, relays, or logic inputs directly without external pull-up resistors |
| Propagation Delay | 0.3 µs typical - sufficient for motor overcurrent protection and PWM fault detection |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive applications per AEC-Q100 stress test profile |
Pinout & Package
LM2903PS-MAND is housed in an 8-pin plastic small-outline package (SOIC) with gull-wing leads, 1.27 mm pitch, and 5.3 mm × 6.2 mm body dimensions. The PS suffix denotes tape-and-reel packaging per JEDEC standard J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-collector output of comparator 1 - requires external pull-up to define logic HIGH level |
| 2 | IN–1 | Inverting input of comparator 1 - accepts signals up to VCC–2 V or down to –0.3 V |
| 3 | IN+1 | Non-inverting input of comparator 1 - same voltage range as IN–1; differential limit ±36 V |
| 4 | GND | Power ground reference - must be low-impedance path for output sink current return |
| 5 | IN+2 | Non-inverting input of comparator 2 - electrically isolated from comparator 1 inputs |
| 6 | IN–2 | Inverting input of comparator 2 - shares GND reference but no internal coupling with comparator 1 |
| 7 | OUT2 | Open-collector output of comparator 2 - independently configurable with separate pull-up |
| 8 | VCC | Positive supply pin - supplies both comparators; no reverse polarity protection integrated |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes ground and extends to VCC–2 V - eliminates need for level-shifting in battery-sensed circuits |
| Open-collector outputs | Enable wired-AND logic and mixed-voltage interfacing (e.g., 3.3 V MCU with 12 V load control) |
| Low quiescent current | 0.4 mA per comparator independent of supply voltage - critical for always-on vehicle modules |
| Differential input voltage tolerance | ±36 V - withstands load-dump transients and inductive kickback without clamping diodes |
| Automotive-grade qualification | LM2903PS-MAND meets AEC-Q100 requirements for temperature cycling, HTOL, and ESD robustness |
Applications
| Automotive Battery Monitoring | Industrial Overvoltage Protection |
|---|---|
Use Scenario: Detecting 12 V battery undervoltage (<11.5 V) and overvoltage (>14.8 V) in vehicle start-stop systems. IC Role / Device Role / Timing Role: Dual comparator configured as window detector with hysteresis via feedback resistors. Use Value: Enables fail-safe engine restart inhibition when battery health falls outside safe operating window. |
Use Scenario: Shutting down 24 V DC power supplies upon output exceeding 28 V due to regulator failure. IC Role / Device Role / Timing Role: High-side comparator comparing regulated output against precision reference. Use Value: Prevents downstream equipment damage by triggering fast-acting shunt FET within 0.3 µs of overvoltage event. |
| Smart Lighting Threshold Control | Appliance Motor Stall Detection |
Use Scenario: Activating LED streetlights at dusk using photocell voltage crossing 2.1 V threshold. IC Role / Device Role / Timing Role: Single comparator comparing ambient light sensor output to fixed reference. Use Value: Eliminates microcontroller polling overhead and reduces system power by 12 µA in sleep mode. |
Use Scenario: Detecting stalled AC induction motor via current-sense resistor voltage exceeding 150 mV. IC Role / Device Role / Timing Role: Comparator monitoring amplified current sense signal against programmable trip point. Use Value: Triggers immediate thermal shutdown before winding insulation degradation occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-collector comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2903DR | Same electrical specs; SOIC-8 package with standard reel orientation (not MAND variant) | Lacks automotive traceability documentation and AEC-Q100 certificate bundle | Select LM2903DR only for non-automotive industrial prototypes or cost-sensitive consumer designs |
| TLV3702IDR | Rail-to-rail input/output, 1 µA supply current, but 5.5 V max supply and –40°C to 125°C rating | Not suitable for 24 V systems or direct battery connection without level shifting | Choose TLV3702IDR where ultra-low power and precision offset (<2 mV) outweigh supply voltage limitations |
Compared with LM2903DR and TLV3702IDR, the LM2903PS-MAND uniquely combines 36 V operation, automotive qualification, and PS-package tape-and-reel delivery - making it the only option for production-tier 12/24 V automotive ECUs requiring full PPAP documentation and lot traceability.
Availability
LM2903PS-MAND is available at Aetrix Electronics and suitable for automotive battery management, industrial safety interlocks, and smart lighting control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2903PS-MAND 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions since 1930.
The LM2903 product line was engineered specifically for automotive and industrial comparator applications demanding wide supply range, ground-sensing capability, and robust transient immunity - not general-purpose op-amp reuse.
FAQ
What is the maximum supply voltage for LM2903PS-MAND?
The LM2903PS-MAND supports a supply voltage range of 2 V to 36 V. Absolute maximum rating is 36 V on VCC, and differential input voltage tolerance is ±36 V - allowing direct interface with 24 V truck batteries and surviving load-dump transients per ISO 7637-2 without external protection.
Does LM2903PS-MAND have rail-to-rail input capability?
Yes, the LM2903PS-MAND features a common-mode input voltage range that includes ground (0 V) and extends up to VCC–2 V across its full operating temperature range (–40°C to 125°C). This enables direct sensing of signals referenced to system ground in single-supply configurations without level-shifting circuitry.
What is the output configuration of LM2903PS-MAND?
The LM2903PS-MAND has two independent open-collector outputs (OUT1 and OUT2). Each requires an external pull-up resistor to define the HIGH logic level. This configuration supports wired-AND logic, mixed-voltage interfacing (e.g., 3.3 V MCU controlling 12 V relay), and direct connection to TTL, MOS, or CMOS inputs.
Is LM2903PS-MAND qualified for automotive applications?
Yes, LM2903PS-MAND is the automotive-grade variant of the LM2903 family. It is tested over –40°C to 125°C and manufactured under stringent process controls aligned with AEC-Q100 requirements - including temperature cycling, highly accelerated life testing (HALT), and electrostatic discharge (ESD) validation per HBM Class 2.
What does the "PS" in LM2903PS-MAND signify?
The "PS" suffix in LM2903PS-MAND indicates a plastic small-outline (SOIC-8) package supplied in tape-and-reel format per JEDEC standard J-STD-020. The "MAND" designation specifies manufacturer-assigned reel orientation and packaging compliance for automated SMT placement - distinct from standard DR or D packages.
LM2903PS-MAND Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
LM2903PS-MAND FAQ
1.How can I place an order for LM2903PS-MAND through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2903PS-MAND 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 LM2903PS-MAND reliable?
The price and inventory of LM2903PS-MAND are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2903PS-MAND is usually 5 days.
3.What payment methods are accepted for LM2903PS-MAND?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2903PS-MAND transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2903PS-MAND?
LM2903PS-MAND orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2903PS-MAND 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 LM2903PS-MAND?
For technical support, including LM2903PS-MAND datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2903PS-MAND requirements.
6.How does Aetrix verify that LM2903PS-MAND is sourced from the original manufacturer or authorized distributors?
All LM2903PS-MAND 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 LM2903PS-MAND meets industry standards.
7.What is the process for return or replacement of LM2903PS-MAND?
All LM2903PS-MAND units undergo pre-shipment inspection (PSI). If there is an issue with LM2903PS-MAND, 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 LM2903PS-MAND part is unused and in its original packaging.
Return procedure for LM2903PS-MAND:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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