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Texas Instruments TLC139MJB
- Part No.:
- TLC139MJB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
TLC139MJB.pdf
- Description:
- QUAD, MICROPOWER, LINCMOS COMPAR
- Quantity:
- Payment:
- Shipping:
Inventory:3,325
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Product details
Overview
TLC139MJB 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 across −55°C to 125°C. It delivers 2.5 µs typical propagation delay at 5-mV overdrive, consumes only 200 µW typical at 5 V, and features 10¹² Ω typical input impedance-enabling precision threshold detection in military-grade power monitoring and motor control circuits.
For engineers reviewing the TLC139MJB datasheet, TLC139MJB pinout, TLC139MJB application, or TLC139MJB equivalent, key selection considerations include its military-temperature-rated ceramic DIP package, 5-mV max input offset voltage at 25°C, open-drain output compatibility with wired-OR logic and external pull-ups, and LinCMOS™ process advantages in input stability and ESD robustness.
Technical Context
The TLC139MJB implements four independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (10¹² Ω typ) and ultra-low bias currents (5 pA typ at 25°C) without sacrificing speed. Its open-drain MOS output stage supports flexible interfacing to TTL, CMOS, or mixed-voltage systems via external pull-up resistors.
It operates over the full military temperature range (−55°C to 125°C), with guaranteed common-mode input range of 0 V to VDD−1.5 V and supply-voltage rejection ratio ≥84 dB across temperature. Input offset voltage drift is specified at ≤0.23 µV/month including first 30 days, supporting long-term stability in unattended systems.
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 15 V rails without regulation. |
| Propagation Delay (tPLH/tPHL) | 2.5 µs typ at 5-mV overdrive - Supports fast response in PWM timing and fault-detection loops. |
| Input Offset Voltage (VIO) | ≤5 mV max at 25°C - Ensures accurate threshold comparison with minimal calibration overhead. |
| Supply Current (IDD) | 44–80 µA typ (four comparators, no load) - Enables battery-powered or low-power standby modes. |
| Input Impedance | 10¹² Ω typ - Minimizes loading on high-impedance sensor sources like thermistors or photodiodes. |
| Output Type | Open-drain CMOS - Allows wired-OR logic, level translation, and interface to multiple logic families via pull-up. |
| ESD Protection | On-chip protection rated to 2000 V (MIL-STD-883C, Method 3015.2) - Reduces need for external transient suppression. |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP), 14-pin, hermetically sealed, with lead finish SNPB (tin-lead). Designed for high-reliability military/aerospace applications requiring extended temperature operation and moisture resistance.
| 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 minimizes source loading. |
| 3, 4, 7, 8 | IN− (Comparator 1–4 inverting inputs) | Differential pair inputs; tolerate ±18 V differential voltage without damage. |
| 9 | GND | Ground reference for all inputs and internal circuitry; must be low-impedance for stable operation. |
| 10, 11, 13, 14 | OUT (Comparator 1–4 open-drain outputs) | Require external pull-up resistor; sink up to 20 mA each; support wired-OR bus configurations. |
| 12 | VDD | Positive supply rail (4–16 V); decoupling capacitor (0.1 µF) required adjacent to pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers 10¹² Ω input impedance and sub-picoampere bias current while maintaining 2.5 µs response-enabling direct interface to high-Z sensors without buffering. |
| Military Temperature Rating | Qualified from −55°C to 125°C per MIL-PRF-38535; suitable for avionics, ground vehicles, and space-qualified subsystems. |
| Low Power Consumption | 200 µW typical at 5 V - reduces thermal load and extends battery life in portable test equipment and remote monitors. |
| Stable Input Offset Drift | ≤0.23 µV/month (including first 30 days) - ensures long-term accuracy in uncalibrated supervisory functions. |
| ESD-Robust Architecture | 2000 V HBM rating per MIL-STD-883C - lowers handling sensitivity and improves manufacturing yield in high-volume assembly. |
Applications
| Motor Speed Control | Power Supply Supervision |
|---|---|
Use Scenario: Pulse-width-modulated (PWM) motor speed controller using potentiometer-adjusted reference and feedback from current-sense resistor. IC Role / Device Role / Timing Role: Quad comparator compares sensed current and reference voltages to generate non-overlapping drive signals for half-H bridge drivers. Use Value: Fast 2.5 µs response enables tight current-loop control; open-drain outputs interface directly to SN75603/4 driver enable pins without level-shifting. | Use Scenario: Enhanced 5 V and 12 V rail supervisor with early power-fail warning and microcontroller reset assertion. IC Role / Device Role / Timing Role: Two comparators monitor undervoltage thresholds; third generates time-delayed reset via RC network; fourth provides early fail interrupt. Use Value: 5-mV max VIO ensures precise trip-point accuracy; wide 4–16 V supply range allows direct monitoring of both rails without auxiliary regulators. |
| Nonoverlapping Clock Generation | Industrial Sensor Threshold Detection |
Use Scenario: Two-phase, nonoverlapping clock generator for synchronous logic or power converter gate drivers. IC Role / Device Role / Timing Role: Three comparators configured as hysteresis oscillators and phase-shifted integrators produce complementary clock edges with programmable dead time. Use Value: LinCMOS™ input stability prevents duty-cycle drift over temperature; open-drain outputs allow direct OR-ing of phases without contention. | Use Scenario: Precision overtemperature shutdown for industrial motor drives using thermistor-based voltage divider. IC Role / Device Role / Timing Role: Single comparator compares thermistor voltage against stable reference to trigger shutdown before thermal limit is exceeded. Use Value: 10¹² Ω input impedance avoids thermistor self-heating error; −55°C to 125°C rating matches motor winding operating envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM139J | Higher supply current (500 µA typ), slower response (1.5 µs min but higher variation), bipolar process, no LinCMOS™ input stability. | Not qualified for −55°C operation; lacks long-term VIO drift spec; unsuitable for uncalibrated long-life systems. | Select LM139J only if cost is primary constraint and military temp range is not required. |
| TLC339MJ | Same LinCMOS™ process, identical pinout and specs-but rated −55°C to 125°C with 5-mV VIO max, same CDIP package. | Functionally identical; differs only in part numbering convention and qualification documentation path. | TLC339MJ is a direct functional replacement with identical performance and qualification-preferred for new designs requiring TI's latest revision traceability. |
Compared with LM139J, TLC139MJB offers 1/20th the power and superior input stability; versus TLC339MJ, it shares identical electrical behavior but reflects earlier production revision-both meet MIL-PRF-38535 Class K requirements for high-reliability deployment.
Availability
TLC139MJB is available at Aetrix Electronics and suitable for military avionics, ground vehicle control systems, and industrial power monitoring requiring stable component supply across extreme temperature environments and long product lifecycles.
Supply support for TLC139MJB 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 aerospace components.
The TLC139MJB belongs to TI's LinCMOS™ comparator family, engineered specifically for low-power, high-precision threshold detection in harsh-environment systems where input stability, ESD robustness, and extended temperature operation are critical.
FAQ
What is the maximum operating temperature range for the TLC139MJB?
The TLC139MJB is characterized for continuous operation from −55°C to 125°C, meeting MIL-PRF-38535 Class K requirements. This full military temperature range is verified per the datasheet's recommended operating conditions and absolute maximum ratings, making it suitable for engine bay, avionics, and downhole electronics applications where ambient extremes are expected. The TLC139MJB maintains specified electrical performance-including 5-mV max input offset voltage and 2.5 µs propagation delay-across this entire range.
Does the TLC139MJB require external pull-up resistors on its outputs?
Yes, the TLC139MJB features open-drain CMOS outputs and requires external pull-up resistors on pins 10, 11, 13, and 14 to establish valid high-level logic states. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus loading requirements. Without pull-ups, outputs remain floating in the high state; the device cannot source current. This architecture enables wired-OR logic, level translation, and compatibility with TTL, CMOS, or mixed-voltage systems-all confirmed in the TLC139MJB datasheet's output schematic and application examples.
What is the input common-mode voltage range for the TLC139MJB at 5 V supply?
At VDD = 5 V, the TLC139MJB supports a common-mode input voltage range of 0 V to VDD−1.5 V, i.e., 0 V to 3.5 V. This specification is guaranteed across the full −55°C to 125°C operating range. Inputs exceeding this range may forward-bias internal ESD diodes, requiring current limiting to <5 mA per input to avoid damage-details explicitly stated in the "APPLICATION INFORMATION" section of the TLC139MJB datasheet.
How does the TLC139MJB differ from the commercial-grade TLC339C?
The TLC139MJB differs from the TLC339C in three key areas: (1) temperature range (−55°C to 125°C vs. 0°C to 70°C), (2) packaging (ceramic DIP vs. plastic DIP), and (3) qualification (MIL-PRF-38535 Class K vs. commercial standards). Electrically, both share identical LinCMOS™ core specs-200 µW power, 2.5 µs delay, 10¹² Ω input impedance-but the TLC139MJB adds long-term VIO drift validation (≤0.23 µV/month) and enhanced ESD robustness (2000 V HBM) required for mission-critical systems.
Can the TLC139MJB drive a 20 mA load on each output simultaneously?
No-the TLC139MJB specifies 20 mA maximum sink current per output, but its absolute maximum total current out of GND is 60 mA. Driving 20 mA on all four outputs would require 80 mA total ground current, exceeding this limit and risking device failure. Safe operation requires summing all output sink currents to ≤60 mA. For example, two outputs at 20 mA and two at 10 mA yields 60 mA total-within specification. This constraint is explicitly defined in the "Absolute Maximum Ratings" table of the TLC139MJB datasheet.
TLC139MJB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-CDIP (0.300", 7.62mm)
- Series:
- -
- 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):
- 80µA
- Current - Quiescent (Max):
- 84dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 3.6µs (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 14-CDIP
TLC139MJB FAQ
1.How can I place an order for TLC139MJB through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC139MJB 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 TLC139MJB reliable?
The price and inventory of TLC139MJB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC139MJB is usually 5 days.
3.What payment methods are accepted for TLC139MJB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC139MJB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC139MJB?
TLC139MJB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC139MJB 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 TLC139MJB?
For technical support, including TLC139MJB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC139MJB requirements.
6.How does Aetrix verify that TLC139MJB is sourced from the original manufacturer or authorized distributors?
All TLC139MJB 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 TLC139MJB meets industry standards.
7.What is the process for return or replacement of TLC139MJB?
All TLC139MJB units undergo pre-shipment inspection (PSI). If there is an issue with TLC139MJB, 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 TLC139MJB part is unused and in its original packaging.
Return procedure for TLC139MJB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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