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Texas Instruments TLC3704MJ
- Part No.:
- TLC3704MJ
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
TLC3704MJ.pdf
- Description:
- QUAD COMPARATOR
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Inventory:191
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Product details
Overview
TLC3704MJ from Texas Instruments is a quad micropower LinCMOS voltage comparator with push-pull CMOS outputs, designed for single-supply operation from 4 V to 16 V and rated for −55°C to 125°C military temperature range. It delivers 2.7 µs typical propagation delay (tPLH) with 5-mV overdrive, 200 µW typical supply power at 5 V, ±8 mA output drive capability, and 5 mV max input offset voltage at 25°C - enabling precision threshold detection in space-constrained, low-power analog monitoring systems.
For engineers reviewing the TLC3704MJ datasheet, TLC3704MJ pinout, TLC3704MJ application, or TLC3704MJ equivalent, key selection considerations include its military-grade temperature rating, rail-to-rail input common-mode range (0 to VDD−1.5 V), absence of external pullup requirements, ESD-protected inputs (2 kV HBM), and compatibility with TTL logic levels despite CMOS architecture.
Technical Context
The TLC3704MJ implements four independent comparators using Texas Instruments' LinCMOS process, combining high input impedance (>10¹² Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage across temperature. Its push-pull output stage eliminates need for external pullup resistors while driving capacitive loads directly - critical for fast, low-power digital interfacing.
Designed for single-supply systems, it supports wide common-mode input range (0 to VDD−1.5 V), 84 dB typical CMRR and PSRR, and operates reliably under transient overvoltage conditions via integrated ESD protection diodes and current-limiting transistors on all pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - enables direct use with 5 V, 12 V, and 15 V industrial/military rails without regulation |
| Propagation Delay (tPLH) | 2.7 µs typ @ 5 mV overdrive - ensures fast response for real-time fault detection and level-triggered control |
| Input Offset Voltage | ≤5 mV max @ 25°C - supports accurate voltage windowing and reference comparison in precision sensing |
| Quiescent Supply Current | 35–80 µA typ (all four channels, no load) - achieves micropower operation suitable for battery-backed systems |
| Output Drive Capability | ±8 mA min - drives LEDs, logic inputs, or small MOSFET gates directly without buffer stages |
| Operating Temperature | −55°C to +125°C - qualified for aerospace, defense, and downhole industrial applications |
| Input Bias Current | 5 pA typ @ 25°C - preserves signal integrity in high-impedance sensor interfaces (e.g., thermistors, photodiodes) |
Pinout & Package
Ceramic DIP (J package), 14-pin dual in-line, through-hole mount. Pin 7 = GND; Pin 14 = VDD; Pins 1/2/4/5/8/9/11/12 = comparator inputs; Pins 3/6/10/13 = outputs; Pins 7 and 14 are power terminals; all NC pins have no internal connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 11, 12 | Comparator Inputs (IN+, IN−) | Dedicated noninverting/inverting inputs for each of four comparators - support differential sensing without external resistors |
| 3, 6, 10, 13 | CMOS Push-Pull Outputs | Active-high/active-low outputs drive logic directly; no pullup required - reduces BOM count and board area |
| 7 | Ground Reference | Common return path for all comparators and output stages - must be low-impedance for stable noise margin |
| 14 | Positive Supply Rail | Single supply input for entire quad device - simplifies power design versus split-rail alternatives |
| NC (Pins 3, 7, 11, 12 in FK/D/PW views) | No Internal Connection | Unused pins electrically isolated - may be left unconnected or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Military Temperature Rating | Qualified from −55°C to +125°C - meets MIL-PRF-38535 requirements for harsh-environment deployment |
| Push-Pull CMOS Output | Drives capacitive loads up to 50 pF directly - eliminates external pullup resistor, saving 0.5 mm² PCB area per channel |
| LinCMOS Process Technology | Combines CMOS low power with bipolar-like input stability - achieves <5 mV VIO drift over full temp range |
| On-Chip ESD Protection | 2 kV HBM (100 pF / 1.5 kΩ) on all pins - protects against assembly damage without external TVS diodes |
| Wide Input Common-Mode Range | 0 V to VDD − 1.5 V - allows direct interface to sensors operating near ground or rail without level-shifting |
Applications
| Motor Control Feedback | Power Supply Monitoring |
|---|---|
Use Scenario: Detect overcurrent or phase loss in brushless DC motor drivers using shunt voltage or back-EMF signals. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous threshold comparison on three-phase currents and enable status. Use Value: 2.7 µs response time enables cycle-by-cycle fault shutdown before IGBT thermal runaway occurs. |
Use Scenario: Monitor multiple DC rails (e.g., 12 V, 5 V, 3.3 V) for undervoltage lockout and brownout recovery. IC Role / Device Role / Timing Role: Each comparator independently compares rail voltage to precision reference, asserting fault flags to microcontroller. Use Value: Micropower operation (80 µA max) extends hold-up time during AC failure in battery-buffered systems. |
| Industrial Sensor Interface | Aerospace Avionics Health Check |
Use Scenario: Condition signals from RTDs, thermocouples, or pressure transducers in programmable logic controllers. IC Role / Device Role / Timing Role: Compares conditioned analog outputs against programmable thresholds to generate discrete alarm outputs. Use Value: 5 pA input bias current prevents loading of high-Z sensor bridges, preserving measurement accuracy. |
Use Scenario: Perform periodic self-test of backup power, cooling fan status, and navigation sensor readiness in flight control units. IC Role / Device Role / Timing Role: Monitors voltage, temperature, and signal integrity margins across redundant subsystems. Use Value: −55°C to +125°C rating ensures reliable operation during rapid thermal cycling in high-altitude environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339J | Open-collector output, requires external pullup; higher supply current (500 µA typ); wider VCC range (2 V to 36 V) | Lacks push-pull drive - unsuitable where fast rise time or direct TTL interfacing is required | Select LM339J only when legacy open-collector compatibility or extended voltage range outweighs power and speed penalties |
| TLC3702MJ | Dual-channel version (2 comparators), identical specs otherwise; same J-package footprint but fewer pins (8-pin) | Reduces channel count - appropriate when system requires only two independent comparisons | Choose TLC3702MJ to save cost and board space where quad functionality is unnecessary |
Compared with LM339J and TLC3702MJ, the TLC3704MJ provides superior speed/power trade-off and eliminates pullup components, while TLC3702MJ offers pin-compatible downsizing and LM339J supports higher-voltage rails at the expense of quiescent current and interface flexibility.
Availability
TLC3704MJ is available at Aetrix Electronics and suitable for motor control feedback, power supply monitoring, industrial sensor interface, and aerospace avionics health check requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for TLC3704MJ 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, embedded processing, and connectivity technologies, with decades of heritage in precision analog ICs and military-qualified components.
The TLC3704M series belongs to TI's LinCMOS comparator family, engineered specifically for low-power, high-reliability single-supply applications in defense, aerospace, and industrial control systems where temperature resilience and input stability are critical.
FAQ
What is the maximum operating temperature range for the TLC3704MJ?
The TLC3704MJ is fully characterized and qualified for continuous operation from −55°C to +125°C, meeting military-grade environmental specifications. This rating is explicitly defined in the "recommended operating conditions" table of the SLCS117C datasheet and verified across all electrical parameters including input offset voltage, supply current, and propagation delay.
Does the TLC3704MJ require an external pullup resistor on its outputs?
No, the TLC3704MJ features a push-pull CMOS output stage that actively drives both high and low states, eliminating the need for external pullup resistors. This architecture enables direct interfacing with TTL and CMOS logic while reducing power consumption, board space, and component count - a key differentiator from open-collector comparators like the LM339.
What is the typical supply current consumption of the TLC3704MJ at 5 V?
At VDD = 5 V and TA = 25°C, the TLC3704MJ draws 35–80 µA typical supply current across all four comparators with no load. Under worst-case conditions across the full −55°C to +125°C range, the datasheet specifies a maximum of 175 µA - confirming its classification as a true micropower device suitable for energy-sensitive applications.
Can the TLC3704MJ operate from a 3-V supply?
No - the TLC3704MJ has a minimum specified supply voltage of 4 V, as stated in its "recommended operating conditions" table. While the commercial-grade TLC3704C supports 3 V, the M-suffix variant is optimized for higher-voltage military systems and does not guarantee functionality below 4 V. Attempting 3-V operation may result in undefined output behavior or failure to meet timing specifications.
How is input overvoltage protected on the TLC3704MJ?
The TLC3704MJ integrates Texas Instruments' patented LinCMOS ESD-protection circuitry on all pins, rated for 2 kV HBM (100 pF / 1.5 kΩ). It uses clamping diodes (D1, D2) and current-limiting transistors (Q1, Q2) to safely shunt positive and negative transients, limiting input current to ±5 mA - allowing robust handling of power-up/down glitches and sensor cable coupling without external protection components.
TLC3704MJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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TLC3704MJ FAQ
1.How can I place an order for TLC3704MJ through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704MJ 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 TLC3704MJ reliable?
The price and inventory of TLC3704MJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704MJ is usually 5 days.
3.What payment methods are accepted for TLC3704MJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704MJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704MJ?
TLC3704MJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704MJ 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 TLC3704MJ?
For technical support, including TLC3704MJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704MJ requirements.
6.How does Aetrix verify that TLC3704MJ is sourced from the original manufacturer or authorized distributors?
All TLC3704MJ 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 TLC3704MJ meets industry standards.
7.What is the process for return or replacement of TLC3704MJ?
All TLC3704MJ units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704MJ, 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 TLC3704MJ part is unused and in its original packaging.
Return procedure for TLC3704MJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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