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Texas Instruments TL331IDBVRG4
- Part No.:
- TL331IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TL331IDBVRG4.pdf
- Description:
- IC COMPARATOR 1 DIFF SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,789
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Product details
Overview
TL331IDBVRG4 from Texas Instruments is a single, open-collector output voltage comparator in SOT-23-5 package, designed for high-voltage 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 with TTL-compatible output sinking capability up to 4 mA - used in server PSU overvoltage detection and motor drive fault monitoring.
For engineers reviewing the TL331IDBVRG4 datasheet, TL331IDBVRG4 pinout, TL331IDBVRG4 application, or TL331IDBVRG4 equivalent, this page delivers verified electrical specs, validated SOT-23-5 pin functions, real-world use cases in power tools and wireless infrastructure, and two confirmed alternative comparators with documented functional and thermal differences.
Technical Context
The TL331IDBVRG4 implements a PNP Darlington pair input stage enabling rail-to-rail common-mode operation down to ground and up to VCC − 1.5 V, with differential input range extended to ±38 V. Its open-collector NPN output supports wired-AND logic and flexible level-shifting across 2–36 V logic domains.
It operates over −40°C to +85°C (I-suffix), draws supply current independent of VCC, and features ESD robustness rated at ±1000 V HBM - distinct from the TL331B's ±2000 V HBM and extended −40°C to +125°C range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 36 V - enables direct sensing in 24 V industrial rails and 36 V battery systems without level-shifting. |
| Input Offset Voltage (max) | ±4 mV over temperature - ensures reliable threshold detection in precision voltage monitoring circuits. |
| Quiescent Current | 430 µA at 36 V, −40°C to +85°C - supports low-power always-on supervision in UPS and appliance control. |
| Propagation Delay | 1.3 µs (TTL input) - meets timing requirements for fast fault response in cordless power tool motor controllers. |
| Output Sink Current | 6 mA minimum at VOL = 1.5 V - drives standard 5 kΩ pull-up resistors to 3.3 V or 5 V logic levels reliably. |
| ESD Rating (HBM) | ±1000 V - satisfies basic handling robustness for automated assembly in consumer and industrial manufacturing. |
| Operating Temperature | −40°C to +85°C - qualified for use in building automation sensors and factory control I/O modules. |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, surface-mount, moisture-sensitive level 1 (MSL-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Negative Input (IN−) | Inverting input node; comparison reference point - voltage here > IN+ triggers output sink. |
| 2 | Ground (GND) | Reference return for internal bias and output stage - must be low-impedance path to system ground plane. |
| 3 | Positive Input (IN+) | Non-inverting input node; monitored signal input - accepts 0 V to VCC − 1.5 V common-mode range. |
| 4 | Output (OUT) | Open-collector NPN drain - requires external pull-up; sinks up to 6 mA to enable wired-AND or logic-level translation. |
| 5 | Power Supply (VCC) | Positive supply rail - supports 2–36 V operation; decoupling capacitor (0.1 µF) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes ground and extends to VCC − 1.5 V - eliminates need for input resistive dividers in low-side current sensing. |
| Open-collector output | Supports mixed-voltage interfacing (e.g., 3.3 V MCU logic with 24 V system rail) via external pull-up selection. |
| Differential input voltage rating | ±36 V absolute maximum - withstands transient overvoltages during hot-swap or load-dump events in power supplies. |
| Low input bias current | 25 nA maximum - minimizes error in high-impedance reference divider networks and sensor interfaces. |
| Fast propagation delay | 1.3 µs typical (TTL input) - enables sub-millisecond fault detection in motor drive enable/disable sequencing. |
Applications
| Server Power Supply Monitoring | Single-Phase UPS Fault Detection |
|---|---|
Use Scenario: Detecting overvoltage on +12 V and +5 V rails before triggering shutdown sequence in redundant server PSUs. IC Role / Device Role / Timing Role: Single comparator comparing sensed rail voltage against precision reference; output drives latch circuit with <2 µs latency. Use Value: Prevents downstream component damage by responding within 1.3 µs to 100 mV overdrive - faster than legacy TL331 variants. |
Use Scenario: Monitoring battery voltage and AC input presence to select between line and battery modes in compact UPS units. IC Role / Device Role / Timing Role: Dual-threshold comparator (using external hysteresis) detecting brownout and overvoltage conditions on 24 V DC bus. Use Value: 2–36 V supply range allows direct connection to battery stack without regulator - reducing BOM count and standby current. |
| Cordless Power Tool Motor Control | Wireless Infrastructure Power Sequencing |
Use Scenario: Real-time overcurrent detection via shunt voltage comparison during high-torque motor startup in 18–40 V battery-powered tools. IC Role / Device Role / Timing Role: Fast-response comparator feeding gate driver enable/disable logic; operates from same battery rail as motor driver. Use Value: 430 µA max supply current at 36 V enables always-on protection without compromising runtime - critical for handheld tools. |
Use Scenario: Enabling RF amplifier stages only after DC-DC converters reach regulation, using precise voltage window detection. IC Role / Device Role / Timing Role: Window comparator (two TL331IDBVRG4 units) verifying 48 V input and 3.3 V/12 V auxiliary rails are in spec before releasing reset. Use Value: ±4 mV max offset ensures tight 50 mV window accuracy across −40°C to +85°C - prevents false resets in outdoor base stations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL331BIDBVR | ±2000 V HBM ESD, −40°C to +125°C, ±0.37 mV typ VIO, 1 µs response, 430 µA IQ at 36 V | Extended temp range and higher ESD robustness suit automotive under-hood and industrial PLC modules | Select TL331BIDBVR when operating above +85°C or requiring enhanced ESD immunity in high-noise environments |
| LM393DR | Push-pull output (no external pull-up needed), 2.0 mV max VIO, 1.3 µs response, 1.2 mA IQ, −40°C to +85°C | Eliminates pull-up resistor but consumes >2× more supply current - less suitable for battery-critical designs | Choose LM393DR where board space is constrained and external pull-up routing is impractical, accepting higher IQ |
Compared with TL331IDBVRG4, TL331BIDBVR offers superior temperature and ESD performance at identical pinout and footprint, while LM393DR trades off quiescent current for output convenience - making TL331IDBVRG4 optimal for cost- and power-sensitive industrial monitoring where SOT-23-5 layout and 430 µA IQ are decisive.
Availability
TL331IDBVRG4 is available at Aetrix Electronics and suitable for server PSU monitoring, cordless power tool motor control, and wireless infrastructure power sequencing requiring stable component supply across extended production lifecycles.
Supply support for TL331IDBVRG4 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, with over 50 years of innovation in precision analog ICs and power management technologies.
The TL331 family was developed as a cost-optimized, high-voltage single comparator for industrial power monitoring and fault detection - emphasizing wide supply range, open-collector flexibility, and robust operation in noisy environments.
FAQ
What is the maximum supply voltage rating for TL331IDBVRG4?
The TL331IDBVRG4 has an absolute maximum supply voltage (VCC) of 36 V, with recommended operating range from 2 V to 36 V. Exceeding 36 V risks permanent damage. This rating enables direct integration into 24 V and 36 V industrial power rails without external regulation - a key design advantage of TL331IDBVRG4 in server PSU and UPS applications.
Does TL331IDBVRG4 support rail-to-rail input operation?
Yes, TL331IDBVRG4 supports input common-mode voltage from ground (0 V) up to VCC − 1.5 V. This rail-to-ground capability allows direct connection to low-side current sense shunts and battery terminals without level-shifting. However, inputs must not go below −0.3 V or above VCC + 0.3 V to avoid parasitic conduction - a defined limit for TL331IDBVRG4 per its absolute maximum ratings.
What is the output configuration of TL331IDBVRG4 and how should it be used?
TL331IDBVRG4 features an open-collector NPN output requiring an external pull-up resistor to define the logic-high voltage level. This configuration enables wired-AND functionality and voltage-level translation - e.g., pulling up to 3.3 V for MCU interfacing while powered from a 24 V rail. The output can sink ≥6 mA at VOL ≤ 1.5 V, making TL331IDBVRG4 compatible with standard logic families and optocoupler drivers.
How does TL331IDBVRG4 differ from TL331BIDBVR in terms of temperature range and ESD?
TL331IDBVRG4 is rated for −40°C to +85°C operation with ±1000 V HBM ESD protection, whereas TL331BIDBVR extends to −40°C to +125°C and offers ±2000 V HBM. Both share identical SOT-23-5 pinout and 2–36 V supply range, but TL331BIDBVR's enhanced specifications make it suitable for under-hood automotive or high-temp industrial control - while TL331IDBVRG4 remains optimal for cost-sensitive commercial-grade applications where +85°C suffices.
Can TL331IDBVRG4 replace older TL331 variants without PCB changes?
Yes, TL331IDBVRG4 is a direct drop-in replacement for TL331I and TL331K in SOT-23-5 packages - sharing identical pinout, footprint, and electrical behavior across the −40°C to +85°C range. No PCB layout modifications are required. Its improved 430 µA max supply current and tighter ±4 mV offset voltage deliver measurable performance gains in existing designs without redesign - confirming TL331IDBVRG4 as a seamless upgrade path.
TL331IDBVRG4 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
TL331IDBVRG4 FAQ
1.How can I place an order for TL331IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL331IDBVRG4 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 TL331IDBVRG4 reliable?
The price and inventory of TL331IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL331IDBVRG4 is usually 5 days.
3.What payment methods are accepted for TL331IDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL331IDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL331IDBVRG4?
TL331IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL331IDBVRG4 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 TL331IDBVRG4?
For technical support, including TL331IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL331IDBVRG4 requirements.
6.How does Aetrix verify that TL331IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All TL331IDBVRG4 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 TL331IDBVRG4 meets industry standards.
7.What is the process for return or replacement of TL331IDBVRG4?
All TL331IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL331IDBVRG4, 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 TL331IDBVRG4 part is unused and in its original packaging.
Return procedure for TL331IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL331IDBVRG4 Tags
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NCX2200GMAZ
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