My Inquiry
My Account
Texas Instruments TL331IDBVTE4
- Part No.:
- TL331IDBVTE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TL331IDBVTE4.pdf
- Description:
- IC COMPARATOR 1 DIFF SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,955
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TL331IDBVTE4 from Texas Instruments is a single, open-collector output voltage comparator in SOT-23-5 package, designed for precision level detection across wide supply rails (2 V to 36 V). It features 0.37 mV typical input offset voltage, 3.5 nA typical input bias current, 430 µA maximum quiescent current at 36 V, and 1 µs typical propagation delay. It operates from –40°C to +85°C and supports ground-sensing inputs in power supply monitoring and motor control feedback loops.
For engineers reviewing the TL331IDBVTE4 datasheet, TL331IDBVTE4 pinout, TL331IDBVTE4 application, or TL331IDBVTE4 equivalent, this page delivers verified electrical specifications, validated pin functions, confirmed thermal behavior in SOT-23, real-world use cases in server PSUs and cordless tools, and two technically documented alternative comparators with explicit functional and packaging distinctions.
Technical Context
The TL331IDBVTE4 implements a PNP Darlington pair input stage enabling high gain, low input bias current (3.5 nA typ), and rail-to-rail common-mode input range down to ground. Its open-collector NPN output sinks up to 18 mA and interfaces directly with TTL, MOS, and CMOS logic when pulled up externally.
It supports dual-supply operation if the supply differential stays within 2 V to 36 V and VCC exceeds the input common-mode voltage by ≥1.5 V. Supply current remains stable across 2 V–36 V and is temperature-invariant below 85°C - critical for industrial power monitoring where supply rails vary.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - enables direct sensing of 24 V industrial rails and 12 V automotive buses without level shifting. |
| Input Offset Voltage (max) | ±4 mV over –40°C to +85°C - ensures ≤4 mV decision error in precision threshold detection (e.g., battery undervoltage lockout). |
| Quiescent Current (max) | 430 µA at 36 V and full temp range - supports always-on monitoring in energy-sensitive applications like UPS standby mode. |
| Propagation Delay (typ) | 1 µs at 5 V with 100 mV overdrive - provides fast response for overcurrent trip circuits in motor drives and SMPS fault protection. |
| Input Bias Current (typ) | 3.5 nA - allows high-impedance reference divider networks (e.g., >1 MΩ) without significant voltage error in sensor interface circuits. |
| Common-Mode Input Range | 0 V to (VCC – 1.5 V) - supports ground-referenced signal comparison (e.g., current sense amplifier output) without external level shift. |
| ESD Rating (HBM) | ±1000 V - meets standard industrial handling requirements per JS-001, suitable for assembly in non-classified environments. |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size), surface-mount, moisture-sensitive level 1 (MSL-1), rated for reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Negative Input (IN–) | Inverting input node; comparison threshold reference point - connected to fixed reference or feedback signal in overvoltage/overcurrent circuits. |
| 2 | Ground (GND) | Power return path and substrate reference - must be low-impedance connection to minimize noise coupling into sensitive input stage. |
| 3 | Positive Input (IN+) | Non-inverting input node; monitored signal input - accepts 0 V to (VCC – 1.5 V), enabling direct connection to battery or bus voltage dividers. |
| 4 | Output (OUT) | Open-collector NPN drain - requires external pull-up resistor; sinks up to 18 mA to drive LEDs, optocouplers, or MCU interrupt pins. |
| 5 | Power Supply (VCC) | Positive supply rail - supports 2 V–36 V; current draw independent of supply voltage, simplifying design across multiple rail voltages. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground input range | Enables direct sensing of 0 V referenced signals (e.g., shunt voltage, thermistor divider bottom) without level-shifting circuitry. |
| Open-collector output | Allows wired-AND logic and flexible logic-level translation - e.g., pulling up to 3.3 V MCU I/O while powered from 24 V system rail. |
| Low quiescent current | 430 µA max at 36 V and 85°C - reduces self-heating and extends battery life in portable power tools and UPS backup modes. |
| High-voltage tolerance | Withstands ±36 V differential input and 36 V supply - eliminates need for external clamping diodes in 24 V industrial sensor interfaces. |
| Temperature-stable performance | Specified over –40°C to +85°C with monotonic offset drift - ensures reliable trip-point consistency in factory automation enclosures. |
Applications
| Server PSU Monitoring | Motor Drive Fault Detection |
|---|---|
|
Use Scenario: Real-time monitoring of +12 V and +5 V output rails in redundant server power supplies to trigger shutdown on overvoltage or undervoltage events. IC Role / Device Role / Timing Role: Voltage comparator comparing sensed rail voltage against precision reference; open-collector output drives FPGA reset or PMBus alert line. Use Value: 1 µs response time ensures sub-millisecond fault reaction, preventing downstream component damage during transient overvoltage spikes. |
Use Scenario: Detecting overcurrent in BLDC motor phase legs using shunt resistor voltage drop, triggering immediate gate driver disable. IC Role / Device Role / Timing Role: High-speed comparator converting analog shunt voltage to digital trip signal; operates from same 15 V gate driver supply. Use Value: 3.5 nA input bias current avoids loading high-value shunt sense resistors, preserving measurement accuracy in <10 mΩ designs. |
| Cordless Power Tool Battery Management | Building Automation Sensor Interface |
|
Use Scenario: Cell voltage balancing and pack-level overvoltage/undervoltage protection in 10S Li-ion battery packs for cordless drills and saws. IC Role / Device Role / Timing Role: Precision comparator comparing individual cell voltage to reference; output controls MOSFET switches in passive balancing circuits. Use Value: ±4 mV max offset ensures ≤20 mV total error across 5-cell stack, meeting UL 2580 safety margin for Li-ion overvoltage cutoff. |
Use Scenario: Converting 4–20 mA current loop outputs from HVAC temperature/humidity sensors into digital logic signals for microcontroller input. IC Role / Device Role / Timing Role: Level translator/comparator with ground-sensing input accepting 0–2.5 V drop across 250 Ω shunt; output pulls up to 3.3 V MCU rail. Use Value: 2 V minimum supply enables operation from low-power LDOs in battery-backed controllers, reducing standby power consumption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL331BIDBV | Improved B-version: ±4 mV offset (vs. ±9 mV), 2 kV HBM ESD (vs. 1 kV), –40°C to +125°C rating (vs. –40°C to +85°C), 430 µA max IQ (vs. 700 µA). | Required for extended temperature operation (e.g., under-hood automotive) or higher ESD robustness in manufacturing environments. | Select TL331BIDBV when operating beyond 85°C or requiring enhanced ESD immunity; pinout and footprint identical to TL331IDBVTE4. |
| LM393DR | Dual comparator in SOIC-8; 2 mV max offset at 25°C (±7 mV over temp), 1.2 mA max IQ, 1.3 µs response, 36 V max supply. | Used where dual-channel functionality is needed or board space permits SOIC vs. SOT-23; not a drop-in replacement due to different pinout and package. | Choose LM393DR only when dual comparators are required and SOIC-8 layout is acceptable; verify PCB redesign for pin mapping and thermal relief. |
Compared with TL331IDBVTE4, TL331BIDBV offers superior temperature range and ESD rating in identical SOT-23-5 packaging, while LM393DR provides dual-channel capability at the cost of larger footprint and higher quiescent current - making TL331IDBVTE4 optimal for space-constrained, single-threshold, industrial-grade monitoring.
Availability
TL331IDBVTE4 is available at Aetrix Electronics and suitable for server PSU monitoring, cordless power tool battery management, and building automation sensor interface applications requiring stable component supply across extended production cycles.
Supply support for TL331IDBVTE4 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 broad industrial portfolio coverage.
The TL331 family was engineered as a cost-optimized, high-voltage single comparator for industrial power monitoring, motor control feedback, and battery management - emphasizing wide supply range, ground-sensing inputs, and open-collector flexibility.
FAQ
What is the maximum supply voltage rating for TL331IDBVTE4?
The TL331IDBVTE4 has an absolute maximum supply voltage of 36 V, with recommended operating range from 2 V to 36 V. This allows direct integration into 24 V industrial systems and 12 V automotive subsystems without external regulation. Exceeding 36 V risks permanent damage per Absolute Maximum Ratings section of the TI datasheet SLVS238L.
Does TL331IDBVTE4 support ground-referenced input signals?
Yes, TL331IDBVTE4 supports common-mode input voltages down to 0 V, enabling direct connection of IN+ or IN– to ground-referenced sources such as shunt resistor outputs or thermistor divider bottoms. The input stage operates correctly from 0 V to (VCC – 1.5 V), as confirmed in Section 5.8 Electrical Characteristics.
What is the typical propagation delay of TL331IDBVTE4 and under what conditions?
The TL331IDBVTE4 exhibits 1 µs typical propagation delay (high-to-low) at 5 V supply, 100 mV input overdrive, 15 pF load, and 5.1 kΩ pull-up. This value is specified in Section 5.9 Switching Characteristics and validated across –40°C to +85°C, making it suitable for sub-microsecond fault response in motor drives and SMPS protection.
Can TL331IDBVTE4 output drive a 3.3 V microcontroller GPIO directly?
No - TL331IDBVTE4 has an open-collector output and cannot source current. To interface with a 3.3 V MCU GPIO, an external pull-up resistor to 3.3 V must be used on the OUT pin. The output will sink current when active (logic low), presenting ~0.4 V at 4 mA load - compatible with standard 3.3 V logic thresholds as verified in Figure 5-20.
Is TL331IDBVTE4 pin-compatible with TL331BIDBV?
Yes, TL331IDBVTE4 and TL331BIDBV share identical SOT-23-5 pinout (IN–, GND, IN+, OUT, VCC), enabling drop-in replacement. However, TL331BIDBV extends temperature range to +125°C and improves ESD rating to 2 kV HBM - differences that require validation in end-equipment thermal and ESD testing.
TL331IDBVTE4 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
TL331IDBVTE4 FAQ
1.How can I place an order for TL331IDBVTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL331IDBVTE4 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 TL331IDBVTE4 reliable?
The price and inventory of TL331IDBVTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL331IDBVTE4 is usually 5 days.
3.What payment methods are accepted for TL331IDBVTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL331IDBVTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL331IDBVTE4?
TL331IDBVTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL331IDBVTE4 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 TL331IDBVTE4?
For technical support, including TL331IDBVTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL331IDBVTE4 requirements.
6.How does Aetrix verify that TL331IDBVTE4 is sourced from the original manufacturer or authorized distributors?
All TL331IDBVTE4 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 TL331IDBVTE4 meets industry standards.
7.What is the process for return or replacement of TL331IDBVTE4?
All TL331IDBVTE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL331IDBVTE4, 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 TL331IDBVTE4 part is unused and in its original packaging.
Return procedure for TL331IDBVTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL331IDBVTE4 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
