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Texas Instruments TLC339MD
- Part No.:
- TLC339MD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC339MD.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,734
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Product details
Overview
TLC339MD from Texas Instruments is a quad differential voltage comparator with open-drain CMOS outputs, designed for single-supply operation from 4 V to 16 V. It delivers 2.5 µs typical propagation delay with 5-mV overdrive, consumes only 200 µW typical at 5 V, and features 10¹² Ω typical input impedance - enabling precision level detection in battery-powered industrial sensors and power-supply supervision circuits.
For engineers reviewing the TLC339MD datasheet, TLC339MD pinout, TLC339MD application, or TLC339MD equivalent, key selection criteria include its −55°C to 125°C military-grade temperature range, 5 mV max input offset voltage at 25°C, open-drain output compatibility with wired-AND logic, and ceramic DIP (J) package suitability for high-reliability aerospace and defense systems.
Technical Context
The TLC339MD uses Texas Instruments' LinCMOS™ process to achieve ultra-low power without sacrificing speed or input stability. Its four independent comparators feature rail-to-rail common-mode input range (0 V to VDD−1.5 V), 84 dB minimum CMRR and PSRR across temperature, and input offset voltage drift of just 0.23 µV/month including first 30 days.
Each comparator has an open-drain MOS output stage capable of sinking up to 20 mA per channel, with total ground current limited to 60 mA. Absolute maximum ratings include ±18 V differential input voltage and −0.3 V to 18 V supply voltage, supporting robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - supports wide-input industrial and avionics power rails without external regulation |
| Propagation Delay (tPLH/tPHL) | 2.5 µs typ @ 5-mV overdrive - enables fast response in overvoltage/undervoltage fault detection |
| Input Offset Voltage (VIO) | 5 mV max @ 25°C - ensures reliable threshold discrimination in precision reference monitoring |
| Supply Current (IDD) | 175 µA max @ −55°C to 125°C - enables multi-year battery life in remote sensor nodes |
| Input Impedance | 10¹² Ω typ - minimizes loading on high-impedance sensor bridges and voltage dividers |
| Output Configuration | Open-drain CMOS - allows flexible pull-up to higher voltage rails and wired-AND bus interfacing |
| Operating Temperature | −55°C to 125°C - qualified for military, aerospace, and under-hood automotive applications |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP, J package), 14-pin, hermetically sealed, lead finish SNPB, suitable for high-reliability and extended-temperature applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6 | IN+ (Comparator 1–4 noninverting inputs) | Accept analog input signals up to VDD−1.5 V; high-impedance node for precision sensing |
| 3, 4, 8, 9 | IN− (Comparator 1–4 inverting inputs) | Differential input pair; supports rail-to-rail common-mode range with low bias current |
| 7 | GND | Power and signal reference ground; must be low-impedance for stable comparator operation |
| 14 | VDD | Positive supply rail; decoupling capacitor (0.1 µF) required adjacent to pin for noise immunity |
| 13, 12, 11, 10 | OUT1–OUT4 (open-drain outputs) | Sink current only; require external pull-up resistors to define logic-high level and interface voltage |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Enables 1/20th the power of LM339-family comparators while maintaining comparable speed and stability |
| ESD protection | Withstands 2000 V HBM per MIL-STD-883C Method 3015.2 - reduces handling sensitivity in production |
| Input offset voltage drift | 0.23 µV/month (including first 30 days) - ensures long-term accuracy in uncalibrated systems |
| Wide common-mode range | 0 V to VDD−1.5 V - supports direct sensing of signals near ground or supply rails |
| No internal current limiting | Permits design-controlled output drive strength but requires external current limiting per output |
Applications
| Motor Speed Control | Power Supply Supervision |
|---|---|
|
Use Scenario: Pulse-width-modulated control of DC motor speed using potentiometer-adjusted reference and feedback voltage. IC Role / Device Role: Quad comparator implements error amplifier, oscillator, and direction logic in discrete PWM controller. Use Value: Open-drain outputs interface directly to half-H bridge drivers (e.g., SN75603/04); low quiescent current extends battery runtime. |
Use Scenario: Monitoring 5 V and 12 V rails for undervoltage lockout and early power-fail warning to microcontroller. IC Role / Device Role: Two comparators detect rail thresholds; third generates reset pulse; fourth provides interrupt flag. Use Value: −55°C to 125°C rating ensures reliability in unregulated power environments; 5 mV VIO enables tight tolerance margining. |
| Nonoverlapping Clock Generation | Aerospace Sensor Interface |
|
Use Scenario: Generating two-phase, nonoverlapping clock signals for synchronous data acquisition or memory timing. IC Role / Device Role: Three comparators form relaxation oscillator and phase-splitting network with RC timing elements. Use Value: Propagation delay consistency (<2.5 µs typ) and low tempco ensure precise dead-time control across temperature extremes. |
Use Scenario: Conditioning low-level bridge sensor outputs (e.g., strain gauge, pressure transducer) in flight control systems. IC Role / Device Role: Comparator detects threshold crossings in analog sensor path prior to ADC sampling. Use Value: 10¹² Ω input impedance prevents signal attenuation; hermetic CDIP package resists moisture and outgassing in vacuum environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339J | Higher supply current (500 µA typ), slower response (1.3 µs min only at large overdrive), no guaranteed −55°C operation | Lacks military temperature qualification and long-term VIO stability; not suitable for aerospace or extended-life deployments | Select TLC339MD when system-level reliability, low power, and guaranteed performance over −55°C to 125°C are mandatory |
| TLC339QDR | Same electrical specs but in RoHS-compliant SOIC-D package; rated −40°C to 125°C (not −55°C) | SOIC package lacks hermeticity and mechanical robustness of CDIP; unsuitable for high-vibration or vacuum environments | Choose TLC339MD for legacy-compatible through-hole mounting, hermetic sealing, and full military temperature compliance |
Compared with LM339J and TLC339QDR, the TLC339MD uniquely combines hermetic ceramic packaging, −55°C start-up capability, sub-200 µW power, and proven long-term VIO stability - making it the only option qualified for Class H (military/aerospace) deployment where parametric drift and package integrity are mission-critical.
Availability
TLC339MD is available at Aetrix Electronics and suitable for aerospace avionics, defense subsystems, and industrial control systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLC339MD 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 and embedded processing technologies, with decades of heritage in high-reliability military and space-grade components.
The TLC339MD belongs to TI's LinCMOS™ comparator family, engineered specifically for applications demanding ultra-low power, precision threshold detection, and operation across extreme temperature ranges without performance degradation.
FAQ
What is the operating temperature range of the TLC339MD?
The TLC339MD is characterized for operation from −55°C to 125°C, meeting military specification requirements. This full-range qualification is confirmed in the "Absolute Maximum Ratings" and "Recommended Operating Conditions" sections of the official TI datasheet SLCS119B, and distinguishes the TLC339MD from commercial (0°C to 70°C) and industrial (−40°C to 85°C) variants of the same family.
Does the TLC339MD have internal ESD protection?
Yes, the TLC339MD includes on-chip ESD protection circuits validated to withstand 2000 V per Human Body Model (HBM) per MIL-STD-883C, Method 3015.2. This protection is inherent to the LinCMOS™ process and applies to all pins, though input current must still be externally limited to <5 mA if either input exceeds the supply rails.
Can the TLC339MD operate from a 3-V supply?
No, the TLC339MD is specified for 4 V to 16 V supply operation only. While the TLC339C and TLC339I variants support 3 V minimum, the "M" suffix (as in TLC339MD) explicitly denotes the military-grade version with 4 V minimum VDD - a hard limit confirmed in the "Recommended Operating Conditions" table for TLC339M devices.
What package type is used for the TLC339MD?
The TLC339MD uses a 14-pin Ceramic Dual-In-Line Package (CDIP or J package), identified in TI's packaging addendum and datasheet "Available Options" table. This hermetically sealed ceramic package provides superior moisture resistance, thermal stability, and mechanical robustness compared to plastic alternatives.
Is the TLC339MD pin-compatible with the LM339?
Yes, the TLC339MD is functionally and pinout-compatible with the LM339 family, sharing identical pin assignments (14-pin DIP), input/output architecture, and open-drain output configuration. However, it is not a drop-in replacement in systems requiring <4 V operation or lacking design allowance for its lower supply current and faster propagation delay.
TLC339MD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 4V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 175µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
TLC339MD FAQ
1.How can I place an order for TLC339MD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC339MD 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 TLC339MD reliable?
The price and inventory of TLC339MD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC339MD is usually 5 days.
3.What payment methods are accepted for TLC339MD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC339MD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC339MD?
TLC339MD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC339MD 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 TLC339MD?
For technical support, including TLC339MD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC339MD requirements.
6.How does Aetrix verify that TLC339MD is sourced from the original manufacturer or authorized distributors?
All TLC339MD 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 TLC339MD meets industry standards.
7.What is the process for return or replacement of TLC339MD?
All TLC339MD units undergo pre-shipment inspection (PSI). If there is an issue with TLC339MD, 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 TLC339MD part is unused and in its original packaging.
Return procedure for TLC339MD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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