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Texas Instruments TLC339MDG4
- Part No.:
- TLC339MDG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC339MDG4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,691
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Product details
Overview
TLC339MDG4 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 sensor interfaces and industrial power supervisors.
For engineers reviewing the TLC339MDG4 datasheet, TLC339MDG4 pinout, TLC339MDG4 application, or TLC339MDG4 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-OR logic and mixed-voltage systems, and LinCMOS™ process stability under differential input stress.
Technical Context
The TLC339MDG4 implements four independent comparators using Texas Instruments' LinCMOS™ process, which combines high input impedance and ultra-low bias current with exceptional input offset voltage stability (0.23 µV/month drift including first 30 days). Its open-drain MOS output stage requires an external pull-up resistor and supports interfacing to TTL, CMOS, or higher-voltage rails up to 18 V.
Unlike bipolar comparators, it avoids linear-region latch-up risk during testing and operates reliably across full common-mode input range (0 V to VDD−1.5 V) at −55°C to 125°C. Absolute maximum ratings include ±18 V differential input voltage and 20 mA per output sink capability, with total ground current limited to 60 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 4 V to 16 V - enables direct use with 5 V, 12 V, or unregulated industrial rails without LDO pre-regulation |
| Propagation delay (5 mV overdrive) | 2.5 µs typ - supports fast threshold detection in motor control commutation and supply fault response |
| Input offset voltage (max, 25°C) | 5 mV - ensures reliable 10-bit ADC reference monitoring and low-voltage battery end-of-discharge detection |
| Input bias current (typ, 25°C) | 5 pA - permits high-impedance sensor signal conditioning (e.g., thermistors, photodiodes) without loading error |
| Output configuration | Open-drain CMOS - allows wired-OR logic, level translation, and direct interface to microcontroller interrupt pins |
| Operating temperature range | −55°C to 125°C - qualified for aerospace, defense, and under-hood automotive applications |
| Quiescent supply current (four comp.) | 44–80 µA typ at 5 V - enables multi-year operation on coin-cell batteries in remote monitoring nodes |
Pinout & Package
Package: SOIC-14 (D package), 14-pin small-outline integrated circuit with gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 7, 8, 10, 11, 12, 13, 14 | Comparator inputs/outputs | Pins 1/2 (1IN+/1IN−), 3/4 (2IN+/2IN−), 5/6 (3IN+/3IN−), 12/13 (4IN+/4IN−); Pins 14/1/7/8 = 1OUT/2OUT/3OUT/4OUT - all outputs open-drain, require external pull-up |
| 6 | VDD | Positive supply rail - accepts 4–16 V; decoupling capacitor (0.1 µF) required adjacent to pin |
| 9 | GND | Analog/digital ground reference - shared return for all comparators and outputs |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Delivers 10¹² Ω input impedance and sub-picoampere bias current - eliminates loading errors in high-Z sensor front-ends |
| Stable input offset voltage | Drift ≤0.23 µV/month (including first 30 days) - maintains calibration integrity in long-life embedded systems |
| ESD protection | Withstands 2000 V HBM per MIL-STD-883C Method 3015.2 - reduces field failure risk in handling and assembly |
| Single-supply operation | Common-mode input range extends to 0 V and up to VDD−1.5 V - simplifies design vs. dual-supply comparators |
| Low power consumption | 200 µW typical at 5 V - enables always-on monitoring in energy-constrained IoT edge devices |
Applications
| Motor Speed Control | Power Supply Supervision |
|---|---|
Use Scenario: Pulse-width-modulated (PWM) control of DC brush motors using feedback from current-sense resistors and direction switches. IC Role / Device Role / Timing Role: Quad comparator monitors motor phase voltage thresholds and generates non-overlapping enable signals for half-H drivers (e.g., SN75603/SN75604). Use Value: Enables precise speed regulation and stall detection without microcontroller intervention, reducing firmware overhead and latency. | Use Scenario: Monitoring 5 V and 12 V rails in industrial PLCs to trigger early power-fail interrupts and hardware resets before brownout. IC Role / Device Role / Timing Role: Two comparators detect undervoltage thresholds; third generates reset pulse via RC timing; fourth provides early warning interrupt to µP. Use Value: Guarantees deterministic system shutdown and recovery with <10 µs response - prevents memory corruption during supply collapse. |
| Nonoverlapping Clock Generation | Threshold-Based Sensor Interface |
Use Scenario: Generating complementary, dead-time-controlled clock pairs for synchronous rectification or gate driving in DC-DC converters. IC Role / Device Role / Timing Role: Three comparators form a ring oscillator with RC timing network; fourth enforces phase separation and duty-cycle tuning. Use Value: Achieves <5 ns inter-channel skew and programmable dead time - improves converter efficiency and prevents shoot-through. | Use Scenario: Converting analog outputs from temperature, pressure, or gas sensors into digital event flags for wake-on-threshold operation. IC Role / Device Role / Timing Role: Comparator channels compare sensor voltage against precision reference dividers; open-drain outputs drive µP interrupt lines directly. Use Value: Reduces system power by >95% vs. continuous ADC sampling - extends battery life in wireless sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339J | Bipolar process; 1.3 mA typical supply current; 300 ns propagation delay; no guaranteed −55°C operation | Higher power draw limits use in battery systems; slower response unsuitable for >10 kHz PWM edge detection | Select LM339J only for cost-sensitive commercial designs where temperature range and quiescent current are non-critical |
| TLC3704CD | Push-pull output (no external pull-up needed); 10 µA lower supply current; same LinCMOS™ specs but incompatible pinout | Eliminates BOM components but requires PCB redesign; not drop-in compatible with TLC339MDG4 layouts | Choose TLC3704CD when board space is constrained and open-drain flexibility is unnecessary |
Compared with LM339J and TLC3704CD, the TLC339MDG4 uniquely balances ultra-low power (200 µW), military-grade temperature resilience (−55°C to 125°C), and open-drain versatility - making it optimal for ruggedized, long-life embedded systems where layout reuse and supply headroom matter.
Availability
TLC339MDG4 is available at Aetrix Electronics and suitable for industrial power supervision, aerospace sensor interfaces, and automotive under-hood control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC339MDG4 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 precision analog ICs and military-grade qualification.
The TLC339MDG4 belongs to TI's LinCMOS™ comparator family, engineered specifically for high-reliability applications demanding low power, wide temperature operation, and robust input stage performance under real-world stress conditions.
FAQ
What is the maximum allowable differential input voltage for the TLC339MDG4?
The TLC339MDG4 supports a maximum differential input voltage of ±18 V, as specified in its absolute maximum ratings. This allows safe operation even when one input is driven significantly above or below the other - critical in noisy industrial environments where transient spikes may occur across sensor inputs. The device remains functional as long as input current is limited to <5 mA.
Does the TLC339MDG4 require external pull-up resistors on its outputs?
Yes, the TLC339MDG4 has open-drain CMOS outputs and requires external pull-up resistors to define the high-state voltage level. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus loading requirements. Pull-up to VDD enables TTL/CMOS compatibility; pull-up to a higher rail (e.g., 12 V) supports mixed-voltage interfacing - a key feature leveraged in the TLC339MDG4's design.
Can the TLC339MDG4 operate from a 3-V supply?
No, the TLC339MDG4 is rated for 4 V to 16 V supply operation. For 3-V systems, TI offers the TLC339C variant (commercial grade) or TLC339I (industrial grade), both specified down to 3 V. The TLC339MDG4's minimum 4-V rating reflects its military-temperature qualification and LinCMOS™ process optimization - using it below 4 V risks parametric failure or undefined behavior.
How does the input offset voltage drift specification apply to the TLC339MDG4?
The TLC339MDG4 specifies input offset voltage change of ≤0.23 µV/month, including the first 30 days. This quantifies long-term calibration stability - essential for applications like precision reference monitoring or sensor baseline tracking where recalibration intervals exceed months. The value is measured under worst-case input stress conditions and is intrinsic to the LinCMOS™ process used in the TLC339MDG4.
Is the TLC339MDG4 pin-compatible with standard LM339 packages?
No, the TLC339MDG4 uses the SOIC-14 (D) package with standard 1.27-mm pitch, but its pinout differs from the LM339. Specifically, TLC339MDG4 assigns VDD to pin 6 and GND to pin 9, whereas LM339 places VDD on pin 16 and GND on pin 8 in PDIP-14. Layout reuse is not possible without adapter routing - a key distinction confirmed in the TLC339MDG4 datasheet's top-view diagram.
TLC339MDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- 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
TLC339MDG4 FAQ
1.How can I place an order for TLC339MDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC339MDG4 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 TLC339MDG4 reliable?
The price and inventory of TLC339MDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC339MDG4 is usually 5 days.
3.What payment methods are accepted for TLC339MDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC339MDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC339MDG4?
TLC339MDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC339MDG4 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 TLC339MDG4?
For technical support, including TLC339MDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC339MDG4 requirements.
6.How does Aetrix verify that TLC339MDG4 is sourced from the original manufacturer or authorized distributors?
All TLC339MDG4 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 TLC339MDG4 meets industry standards.
7.What is the process for return or replacement of TLC339MDG4?
All TLC339MDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC339MDG4, 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 TLC339MDG4 part is unused and in its original packaging.
Return procedure for TLC339MDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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