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Texas Instruments TL331IDBVRE4
- Part No.:
- TL331IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TL331IDBVRE4.pdf
- Description:
- IC COMPARATOR 1 DIFF SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,991
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Product details
Overview
TL331IDBVRE4 from Texas Instruments is a single, open-collector output voltage comparator in SOT-23-5 package, designed for cost-sensitive industrial and power management applications. It operates from 2 V to 36 V supply, delivers 430 µA quiescent current at 36 V, achieves ±0.37 mV typical input offset voltage, and provides 1 µs propagation delay - enabling precise, low-power level detection in server PSUs and motor drives.
For engineers reviewing the TL331IDBVRE4 datasheet, TL331IDBVRE4 pinout, TL331IDBVRE4 application, or TL331IDBVRE4 equivalent, key selection considerations include its extended 125°C operating junction temperature, ±38 V differential input voltage rating, ground-sensing common-mode range, and compatibility with TTL/MOS/CMOS logic interfaces via external pull-up.
Technical Context
The TL331IDBVRE4 implements a PNP Darlington pair input stage, delivering high gain and low input bias current (3.5 nA typ) while supporting rail-to-rail input common-mode operation down to ground. Its open-collector NPN output enables wired-AND functionality and flexible logic-level translation across supply domains.
It supports dual-supply operation when VCC exceeds the input common-mode voltage by ≥1.5 V and the supply differential remains within 2 V to 36 V. Supply current remains independent of VCC, and ESD robustness is rated at ±2 kV HBM - matching the enhanced TL331B specification tier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports wide-input industrial power rails without regulation. |
| Input Offset Voltage (max) | ±4 mV over –40°C to +125°C - ensures accurate threshold detection across full temp range. |
| Quiescent Current | 430 µA at 36 V, –40°C to +125°C - enables low-power always-on monitoring in battery-backed systems. |
| Propagation Delay | 1 µs (typ) at 5 V - delivers fast response for overvoltage/undervoltage fault detection in SMPS. |
| Differential Input Voltage | ±38 V - allows direct sensing of high-side bus voltages without attenuators. |
| Input Bias Current | 3.5 nA (typ), ≤25 nA (max) - minimizes error in high-impedance reference or sensor circuits. |
| ESD Rating (HBM) | ±2000 V - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm max height, gull-wing leads, RoHS-compliant, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Negative Input (IN–) | Inverting comparator input; referenced against IN+ to determine output state. |
| 2 | Ground (GND) | Power return path and reference for input common-mode range (includes ground). |
| 3 | Positive Input (IN+) | Non-inverting comparator input; accepts signals from 0 V to VCC – 1.5 V. |
| 4 | Output (OUT) | Open-collector NPN drain - requires external pull-up; sinks up to 20 mA. |
| 5 | Supply (VCC) | Positive supply rail; supports up to 38 V absolute max, enabling direct HV sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input range | Common-mode voltage includes 0 V - enables direct battery or rail-to-ground monitoring without level shifters. |
| Open-collector output | Supports wired-AND logic and interface to multiple voltage domains (e.g., 3.3 V MCU with 12 V pull-up). |
| High-voltage differential input | ±38 V rating allows direct comparison of signals across isolated domains or high-side sensing. |
| Low input bias current | 3.5 nA typ preserves accuracy in high-impedance divider networks used for precision voltage monitoring. |
| Extended temperature operation | –40°C to +125°C junction range supports deployment in motor drives, server PSUs, and industrial enclosures. |
Applications
| Server Power Supply Monitoring | Motor Drive Overcurrent Protection |
|---|---|
|
Use Scenario: Real-time detection of +12 V rail undervoltage or overvoltage faults in redundant server PSUs. IC Role / Device Role / Timing Role: Single comparator comparing sensed rail voltage against precision reference; triggers shutdown signal via open-collector output. Use Value: 1 µs response time enables sub-microsecond fault reaction, preventing downstream component damage during transient events. |
Use Scenario: Monitoring shunt voltage across IGBT gate driver to detect short-circuit conditions in BLDC motor inverters. IC Role / Device Role / Timing Role: High-speed comparator detecting >100 mV overdrive on current-sense node; output pulls down MCU interrupt line. Use Value: ±38 V differential input rating permits direct connection to high-side shunt without attenuation, reducing BOM count and error sources. |
| Vacuum Robot Safety Interlock | Appliance Door Lock Sensing |
|
Use Scenario: Verifying vacuum chamber pressure via analog sensor output before enabling robotic actuation sequence. IC Role / Device Role / Timing Role: Threshold detector comparing pressure transducer output to fixed reference; output drives safety relay control logic. Use Value: Ground-referenced input range allows direct interfacing with ratiometric sensors powered from same 5 V rail, eliminating offset drift. |
Use Scenario: Confirming mechanical latch engagement in washing machine door assembly using resistive position sensor. IC Role / Device Role / Timing Role: Low-power comparator operating from 3.3 V system rail; output signals microcontroller upon threshold crossing. Use Value: 430 µA max supply current at full temperature range extends battery life in cordless or backup-powered lock modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL331BIDBVRE4 | Same SOT-23-5 package; improved specs - ±0.37 mV offset (vs. ±4 mV max), 1 µs delay (vs. 1.3 µs), 125°C rating (vs. 85°C for TL331I). | Preferred for new designs requiring tighter accuracy, faster response, or extended temperature operation. | Select TL331BIDBVRE4 when upgrading legacy TL331I-based systems for higher reliability in thermal stress environments. |
| LM393DR | SOIC-8; dual comparator; 2 mV offset (max), 1.3 µs delay, 36 V supply, but only rated to 85°C and lacks 2 kV HBM ESD rating. | Used where dual-channel function or SOIC layout is required; not suitable for 125°C or high-ESD industrial zones. | Choose LM393DR only if dual comparators are needed and thermal/ESD requirements are less stringent than TL331IDBVRE4. |
Compared with TL331BIDBVRE4, TL331IDBVRE4 trades offset accuracy and speed for legacy compatibility and lower cost; versus LM393DR, it offers superior thermal range and ESD immunity in a smaller footprint but lacks dual-channel capability.
Availability
TL331IDBVRE4 is available at Aetrix Electronics and suitable for server PSU monitoring, motor drive protection, and appliance safety interlocks requiring stable component supply across long production lifecycles.
Supply support for TL331IDBVRE4 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision analog signal conditioning.
The TL331 family was engineered for cost-sensitive, high-reliability voltage comparison tasks in industrial power, motor control, and safety-critical subsystems - prioritizing wide supply range, ground-sensing inputs, and robust open-collector outputs.
FAQ
What is the maximum supply voltage rating for TL331IDBVRE4?
The TL331IDBVRE4 has an absolute maximum supply voltage (VCC) of 38 V, per the TL331B-specification revision. This allows direct use in 24 V and 36 V industrial systems without input attenuation or clamping, provided the recommended operating range of 2 V to 36 V is observed for reliable functionality. Exceeding 38 V risks permanent device damage.
Does TL331IDBVRE4 support input voltages down to ground?
Yes, TL331IDBVRE4 supports a common-mode input voltage range that includes ground (0 V), enabling direct sensing of signals referenced to system ground - such as battery voltage or shunt-based current measurements. Its input stage allows operation from 0 V up to VCC – 1.5 V, making it suitable for rail-to-ground monitoring without level-shifting circuitry.
What is the output configuration of TL331IDBVRE4 and how is it used?
TL331IDBVRE4 features an open-collector NPN output (Pin 4), requiring an external pull-up resistor to define the logic-high voltage level. This configuration enables wired-AND logic, multi-voltage domain interfacing (e.g., 3.3 V MCU with 12 V pull-up), and direct driving of relays or LEDs. The output can sink up to 20 mA, with VOL scaling linearly with sink current.
How does the temperature range of TL331IDBVRE4 compare to newer variants like TL331B?
TL331IDBVRE4 is rated for –40°C to +85°C junction temperature, consistent with the original TL331I specification. In contrast, TL331BIDBVRE4 extends the upper limit to +125°C and improves offset voltage and propagation delay. For designs targeting automotive under-hood or high-ambient industrial environments, TL331BIDBVRE4 is the technically superior drop-in replacement.
Can TL331IDBVRE4 be used in dual-supply configurations?
Yes, TL331IDBVRE4 supports dual-supply operation when the difference between the two supplies is 2 V to 36 V and the positive supply (VCC) is at least 1.5 V more positive than the input common-mode voltage. This enables use in bipolar signal conditioning applications, though the device itself is not symmetrical - GND remains the reference node, and the negative supply must be connected to Pin 2 (GND).
TL331IDBVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V, ±1V ~ 18V
- :
- 5mV @ 30V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 700µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
TL331IDBVRE4 FAQ
1.How can I place an order for TL331IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL331IDBVRE4 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 TL331IDBVRE4 reliable?
The price and inventory of TL331IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL331IDBVRE4 is usually 5 days.
3.What payment methods are accepted for TL331IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL331IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL331IDBVRE4?
TL331IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL331IDBVRE4 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 TL331IDBVRE4?
For technical support, including TL331IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL331IDBVRE4 requirements.
6.How does Aetrix verify that TL331IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All TL331IDBVRE4 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 TL331IDBVRE4 meets industry standards.
7.What is the process for return or replacement of TL331IDBVRE4?
All TL331IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL331IDBVRE4, 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 TL331IDBVRE4 part is unused and in its original packaging.
Return procedure for TL331IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL331IDBVRE4 Tags
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