About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)Specialized ICsTLC393IDRG4
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

TLC393IDRG4 - Texas Instruments

Manufacturer Part Number
TLC393IDRG4
Manufacturer
Texas Instruments
Allelco Part Number
41D-TLC393IDRG4
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,730 pcs available, New & Original
Parts Description
-
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
Compare
Our certification
In stock: 9730
  • Unit Price: $0.532
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $0.532 $0.53
10+ $0.532 $5.32
12+ $0.532 $6.38
200+ $0.206 $41.20
500+ $0.199 $99.50
1000+ $0.196 $196.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TLC393IDRG4 Tech Specifications
Texas Instruments - TLC393IDRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TLC393IDRG4

Product Attribute Attribute Value
Part Number TLC393IDRG4
Package -
Description -
Stock Condition Get 9730 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Texas Instruments
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

TLC393IDRG4

Manufacturer

Texas Instruments

Introduction

The TLC393IDRG4 is a dual general-purpose linear comparator from Texas Instruments. It is part of the LinCMOS™ series and is designed for a wide range of applications that require precise voltage comparisons.

Product Features and Performance

Dual comparator design

MOS, open-drain output type

Single-supply operation from 3V to 16V

Low input offset voltage of 5mV at 10V

Extremely low input bias current of 5pA at 5V

Typical output current of 20mA

Maximum quiescent current of 65μA

High common-mode rejection ratio (CMRR) of 84dB

Maximum propagation delay of 4.5μs

Product Advantages

Versatile performance for various applications

Low power consumption

Excellent input offset and bias current characteristics

High CMRR for noise rejection

Fast response time

Key Reasons to Choose This Product

Reliable and consistent performance

Cost-effective solution for voltage comparison needs

Ease of integration into a wide range of circuits

Extensive support and resources from Texas Instruments

Quality and Safety Features

Manufactured using Texas Instruments' high-quality semiconductor processes

Meets relevant industry standards and safety requirements

Compatibility

The TLC393IDRG4 is compatible with a variety of electronic systems and circuits that require precise voltage comparison functionality.

Application Areas

Industrial control systems

Instrumentation and measurement equipment

Power management circuits

Alarm and detection systems

Automotive electronic systems

Product Lifecycle

The TLC393IDRG4 is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from Texas Instruments or other manufacturers. Customers are advised to contact our website's sales team for more information on available options and product lifecycle status.

Frequently Asked Questions(FAQ)

How does the propagation delay of the TLC393IDRG4 affect real-time control loop stability in a 10V industrial sensor interface circuit?
With a maximum propagation delay of 4.5 µs, the TLC393IDRG4 introduces measurable latency in signal transitions, which can influence phase margin in fast-feedback loops. In a typical 10V industrial environment where switching occurs rapidly between threshold levels, this delay may reduce effective bandwidth by up to 15–20% compared to ideal comparators. Engineers designing high-speed limit detection or window comparators should account for this when selecting loop timing parameters.
What is the impact of the TLC393IDRG4’s input offset voltage on precision threshold detection at low supply voltages such as 3.3V?
The maximum input offset voltage of 5 mV at 10V supply increases proportionally relative to VCC, reaching approximately 1.65 mV at 3.3V. This can shift comparator thresholds beyond acceptable tolerances in applications like battery-powered level detection, potentially causing false triggering or missed events. For systems requiring sub-millivolt accuracy, external trimming or post-calibration may be necessary despite the device’s nominal precision.
Can the TLC393IDRG4 drive standard CMOS logic inputs reliably when used in open-drain configuration across a wide temperature range?
Yes, the TLC393IDRG4’s open-drain output with 20mA sink capability allows it to interface directly with CMOS logic families, including 3.3V and 5V systems. At -40°C, the output resistance remains within datasheet specifications, ensuring adequate pull-up current even with longer traces or multiple loads. However, designers must ensure pull-up resistors are sized appropriately (typically 1–10 kΩ) to maintain rise times under 100 ns in moderate-speed applications.
How does the quiescent current of the TLC393IDRG4 compare to modern rail-to-rail op-amp alternatives in battery-operated edge-computing nodes?
The TLC393IDRG4 draws a maximum of 65 µA quiescent current per comparator, which is significantly lower than most general-purpose op-amps operating in linear mode but higher than specialized ultra-low-power comparators. In a dual-channel application drawing 130 µA total, this represents about 26 mA over a 5-year CR2032 coin cell life—acceptable for intermittent sampling but not continuous monitoring. Op-amps in comparator mode often draw 100–300 µA, making the TLC393IDRG4 favorable for duty-cycled designs.
Is hysteresis intentionally omitted from the TLC393IDRG4, and what design consequences does this impose on noise-sensitive analog front-ends?
Hysteresis is not provided in the TLC393IDRG4, meaning it operates as a standard zero-hysteresis comparator. This makes it susceptible to oscillation near the trip point in noisy environments such as motor control circuits or unshielded sensor lines. Designers must implement external hysteresis through positive feedback networks—adding resistors from output to non-inverting input—to prevent chatter, increasing component count and layout complexity.
How do the CMRR and PSRR values of the TLC393IDRG4 influence performance in high-impedance transducer conditioning stages powered by noisy DC-DC converters?
With typical CMRR of 84 dB, the TLC393IDRG4 attenuates common-mode interference by a factor of ~5,000. In practice, this limits common-mode noise rejection to around 20 mV peak in industrial settings. When paired with high-source impedance transducers (e.g., thermocouples or piezoelectric sensors), the lack of internal bias current compensation means input leakage dominates signal integrity. Careful PCB grounding and shielding are essential to leverage its moderate PSRR effectively.
What are the thermal derating implications of using both channels of the TLC393IDRG4 continuously in an 85°C ambient environment?
Operating at 85°C is within the specified temperature range, but continuous full-load operation (20mA per channel) increases junction temperature by roughly 30–40°C above ambient due to package thermal resistance. At 85°C board temperature, internal stresses may accelerate electromigration in metal interconnects, potentially reducing long-term reliability. Derating output current below 10mA per channel is advisable for extended mission profiles.
How does the TLC393IDRG4’s LinCMOS architecture benefit mixed-signal system integration compared to traditional bipolar comparator ICs?
LinCMOS technology provides near-MOSFET input stages with extremely low input bias current (5pA max at 5V), minimizing loading on high-impedance sources. Unlike bipolar comparators that require careful biasing and exhibit higher leakage, the TLC393IDRG4 maintains stable thresholds without input coupling capacitors in slow-switching applications. This simplifies layout and enhances compatibility with FET-based sensor interfaces in embedded control systems.
In what scenarios would substituting the TLC393IDRG4 with the TLC393IDR be problematic despite their functional equivalence?
While the TLC393IDR shares identical pinout and electrical characteristics, it uses a different packaging variant—likely TSSOP instead of SOIC—which affects mechanical footprint and solder joint profile. In automated assembly, mismatched packages can lead to placement errors or tombstoning during reflow. Additionally, trace routing and creepage distances differ slightly, potentially impacting ESD robustness in compact designs. Always verify board layout compatibility before substitution.
What considerations apply when cascading two TLC393IDRG4 devices in a window comparator configuration for overvoltage protection in automotive lighting systems?
Cascading requires matching input offset voltages and propagation delays to ensure symmetric response. Since each comparator has ±5mV offset variation, worst-case threshold mismatch could reach 10mV. In a 12V automotive system protecting against transients above 13V, this creates a dead zone where neither output asserts, risking undetected overvoltage conditions. External calibration or trimming resistors may be needed for tight tolerance applications.
How does the open-drain output structure of the TLC393IDRG4 influence electromagnetic emissions in densely populated PCBs?
Open-drain outputs eliminate shoot-through currents associated with push-pull stages, reducing high-frequency ringing during state transitions. This lowers conducted and radiated emissions, particularly beneficial in CISPR-compliant designs. However, slower rise/fall times due to RC time constants from pull-up resistors can increase spectral content in lower frequency bands (<1 MHz). Proper termination and controlled slew rates mitigate these effects without sacrificing noise immunity.
What role does moisture sensitivity level (MSL = 1) play in handling and storage logistics for bulk orders of TLC393IDRG4 components?
MSL 1 indicates unlimited shelf life under normal storage conditions (≤30°C/60% RH), allowing manufacturers to stockpile components without dry packaging requirements. This reduces packaging costs and simplifies procurement for high-volume projects. However, once the reel is opened, components must be used within 168 hours if stored above 30°C or 60% RH; otherwise, baking may be required before reflow to prevent popcorning.
Can the TLC393IDRG4 safely interface with 5V TTL logic without level shifting given its single-supply operation down to 3V?
Yes, the open-drain output can sink sufficient current to pull a 5V TTL input low directly, assuming a suitable pull-up resistor (e.g., 10 kΩ) connected to 5V. The device’s 3V minimum supply allows coexistence with legacy 5V systems. However, output high voltage equals the supply rail, so bidirectional communication requires care—inputs must tolerate the lower rail voltage if driven from the comparator side. Level translation is unnecessary for unidirectional signaling.
Why might engineers avoid using the TLC393IDRG4 in precision ADC sample-and-hold circuits despite its low offset?
Although the TLC393IDRG4 has low input offset, its propagation delay variability (±1.5 µs typical) introduces jitter in decision timing critical for sample-hold comparators. In SAR ADCs requiring precise alignment between sample pulse and capacitor discharge, this uncertainty degrades effective resolution beyond 12 bits in high-speed conversions. Dedicated track-and-hold amplifiers or faster comparators with guaranteed delay matching offer superior performance for such roles.
How does the absence of built-in enable/disable pins affect power management strategies when using the TLC393IDRG4 in multiplexed sensor arrays?
Without shutdown capability, power must be managed externally via supply switching or output disabling. In multi-sensor systems, leaving unused comparators active wastes energy and generates standby noise. A more efficient approach involves using a digital mux to route signals and gate the supply rails, though this adds complexity. Alternatively, selecting a comparator with enable function trades cost for dynamic power control.
What trade-offs exist between using the TLC393IDRG4 versus discrete transistor-based comparator circuits in space-constrained IoT edge nodes?
Discrete solutions using JFET op-amps or discrete comparators can achieve similar input bias currents and lower cost in single-channel applications. However, they lack integration benefits: no guaranteed matching, increased PCB area, and reduced reliability from additional solder joints. The TLC393IDRG4 offers better consistency, easier layout, and inherent ESD protection (though still limited), justifying its use in multi-channel or certified designs despite marginally higher unit cost.
How does RoHS3 compliance impact regulatory documentation and end-of-life planning when sourcing large quantities of TLC393IDRG4 for medical device peripherals?
RoHS3 compliance confirms absence of restricted substances including Pb, Cd, Hg, Cr6+, PBB, PBDE, and four phthalates, easing CE marking and FDA submission processes. Documentation must include full material declarations and conflict mineral reports as part of due diligence. For medical applications, this also supports lifecycle assessments and facilitates recycling programs, reducing environmental liability during product retirement phases.
What precautions should be taken when replacing the TLC393IDRG4 in existing designs originally using legacy bipolar comparators like LM311?
Legacy comparators often require pull-up resistors on outputs even in push-pull configurations, whereas the TLC393IDRG4 mandates them only in open-drain mode. Omitting pull-ups will result in floating outputs and undefined states. Additionally, input protection diodes in older parts behave differently under negative inputs; the TLC393IDRG4’s LinCMOS inputs tolerate larger differential voltages but less absolute maximum ratings. Verify input polarity margins and output drive topology before replacement.

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
Texas Instruments

TLC393IDRG4

Texas Instruments
41D-TLC393IDRG4

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB