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Texas Instruments TLC3702MD
- Part No.:
- TLC3702MD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3702MD.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:185
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Product details
Overview
TLC3702MD from Texas Instruments is a dual micropower LinCMOS™ voltage comparator with push-pull CMOS outputs, operating from 4 V to 16 V supply, delivering ±8 mA output drive, 2.7 μs typical propagation delay (tPLH) at 5-mV overdrive, and 100 μW typical power consumption at 5 V. It serves as a low-power, single-supply replacement for LM339 in precision threshold detection circuits across military-grade sensor interfaces and ruggedized power monitoring systems.
For engineers reviewing the TLC3702MD datasheet, TLC3702MD pinout, TLC3702MD application, or TLC3702MD equivalent, key selection considerations include its −55°C to 125°C military temperature rating, 10 mV max input offset voltage over full temperature range, push-pull output eliminating external pull-up resistors, and compatibility with TTL logic levels despite CMOS input architecture.
Technical Context
The TLC3702MD implements two independent comparators using Texas Instruments' LinCMOS™ process, enabling high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage under large differential inputs. Its push-pull output stage directly drives capacitive loads up to 50 pF without external components while maintaining fast response.
Designed for single-supply operation, it supports common-mode input voltage from 0 V to VDD − 1.5 V across −55°C to 125°C, with 82–85 dB CMRR and kSVR over temperature. On-chip ESD protection meets 2-kV HBM and 200-V CDM standards per JEDEC JESD22-A114/A115.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - Enables direct integration into 5 V, 12 V, and 15 V military power rails without regulation. |
| Input Offset Voltage (max) | 10 mV over −55°C to 125°C - Ensures reliable threshold detection in wide-temperature environmental monitoring. |
| Propagation Delay (tPLH) | 2.7 μs typ at 5-mV overdrive, CL = 50 pF - Supports sub-400-kHz signal edge detection in real-time control loops. |
| Supply Current (both comparators) | 90 μA max over −55°C to 125°C - Delivers micropower operation critical for battery-backed or energy-harvested systems. |
| Output Drive Capability | ±20 mA per output - Sustains direct interface to TTL loads, LED indicators, or small MOSFET gates without buffering. |
| Common-Mode Input Range | 0 V to VDD − 1.5 V over full temperature - Allows rail-to-rail sensing of analog signals referenced to system ground or mid-supply. |
| ESD Protection | 2000 V HBM, 200 V CDM - Meets MIL-STD-883 Class B requirements for handling and assembly in defense electronics. |
Pinout & Package
Ceramic DIP (JG) package, 14-pin, through-hole mounting. Pin 1 marked by notch or dot; pin numbering counterclockwise from top-left corner when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Comparator 1 push-pull output - Drives logic loads directly; no pull-up required for high state. |
| 2 | 1IN− | Inverting input of comparator 1 - Accepts reference or feedback signal; high-impedance node (5 pA bias). |
| 3 | 1IN+ | Non-inverting input of comparator 1 - Receives sensed signal; supports common-mode range to VDD − 1.5 V. |
| 4 | GND | Analog/digital ground reference - Shared return path for both comparators and supply decoupling. |
| 5 | VDD | Positive supply input - Powers both comparators; accepts 4–16 V with internal regulation-free operation. |
| 6 | 2OUT | Comparator 2 push-pull output - Independent output; electrically isolated from 1OUT but shares VDD/GND. |
| 7 | 2IN− | Inverting input of comparator 2 - Fully independent channel; identical electrical specs to pin 2. |
| 8 | 2IN+ | Non-inverting input of comparator 2 - Matches pin 3 performance; enables dual-threshold or window-comparator topologies. |
| 9–14 | NC | No internal connection - Electrically floating; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 100 μW typical at 5 V - Reduces thermal load and extends battery life in portable military radios and UAV subsystems. |
| Push-pull CMOS output | Eliminates need for external pull-up resistors - Saves PCB area, BOM cost, and avoids resistor-induced delay skew. |
| LinCMOS™ process technology | Input bias current ≤5 pA at 25°C - Enables high-impedance sensor interfacing (e.g., thermistors, photodiodes) without signal loading. |
| Military temperature grade | −55°C to 125°C operational range - Qualified for engine bay, avionics bays, and space-constrained defense enclosures. |
| TTL-compatible output levels | VOH ≥4.2 V, VOL ≤500 mV at 125°C - Ensures robust logic-level translation into legacy digital subsystems. |
Applications
| Power Supply Monitoring | Overvoltage/Undervoltage Detection |
|---|---|
Use Scenario: Real-time monitoring of 12 V aircraft bus voltage during engine start transients. IC Role / Device Role / Timing Role: Dual comparator configured as window detector comparing bus voltage against 10.5 V (low threshold) and 14.2 V (high threshold). Use Value: Detects fault conditions within 3 μs and asserts latchable fault flag via open-collector compatible output stage. |
Use Scenario: Supervisory circuit in missile guidance power module detecting brownout or surge events. IC Role / Device Role / Timing Role: Comparator 1 monitors VDD against precision bandgap reference; Comparator 2 validates auxiliary 5 V rail. Use Value: 10 mV max VIO ensures <±1% threshold accuracy over full military temperature range, preventing false trips. |
| Temperature Threshold Sensing | Motor Stall Detection |
Use Scenario: Thermal cutoff in radar transmitter cooling system using NTC thermistor divider network. IC Role / Device Role / Timing Role: Single comparator compares thermistor voltage to fixed reference; second comparator reserved for redundancy. Use Value: 5 pA input bias prevents thermistor self-heating error; 100 μW dissipation avoids localized heating near sensor. |
Use Scenario: DC motor stall detection in turret drive actuator by monitoring current-sense resistor voltage. IC Role / Device Role / Timing Role: Comparator triggers shutdown when sense voltage exceeds 150 mV (corresponding to 3 A stall current). Use Value: 2.7 μs tPLH enables response before winding damage occurs; ±20 mA output drives SCR gate directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393AMX/NOPB | Higher supply current (500 μA typ), wider VDD range (2–36 V), open-collector output requiring pull-up. | Lacks push-pull drive; unsuitable where board space or power budget prohibits external resistors. | Select only if higher voltage tolerance or legacy LM393 footprint is mandatory; verify pull-up resistor thermal derating at 125°C. |
| MAX971ESA+ | Lower input offset (1.5 mV max), rail-to-rail input, but rated only to 85°C industrial range and higher quiescent current (120 μA). | Not qualified for −55°C operation or sustained 125°C ambient; requires external level-shifting for 12 V systems. | Prefer for commercial/industrial designs needing tighter offset; avoid for aerospace or engine-mounted applications. |
Compared with LM393AMX/NOPB, TLC3702MD saves >95% supply current and eliminates pull-up components; compared with MAX971ESA+, it trades 1.5 mV offset for guaranteed −55°C to 125°C operation and 40% lower IDD at temperature extremes.
Availability
TLC3702MD is available at Aetrix Electronics and suitable for power supply supervision, motor control safety interlocks, temperature-critical sensor interfaces, and ruggedized data acquisition requiring stable component supply across extended temperature cycles.
Supply support for TLC3702MD 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 over 50 years of innovation in precision analog ICs and military-grade components.
The TLC3702MD belongs to TI's LinCMOS™ comparator family, engineered specifically for low-power, high-reliability threshold detection in defense, aerospace, and industrial systems demanding wide-temperature operation and minimal board-level overhead.
FAQ
What is the maximum operating temperature range for the TLC3702MD?
The TLC3702MD is fully specified and tested over −55°C to +125°C, meeting MIL-PRF-38535 requirements for military-grade operation. Electrical characteristics including input offset voltage (10 mV max), supply current (90 μA max), and output voltage levels are guaranteed across this full range, making it suitable for engine control units, avionics, and downhole instrumentation.
Does the TLC3702MD require external pull-up resistors on its outputs?
No, the TLC3702MD features push-pull CMOS outputs that actively drive both high and low states, eliminating the need for external pull-up resistors. This reduces component count, saves PCB area, avoids resistor-induced timing skew, and cuts power consumption-especially critical in battery-powered or thermally constrained military systems where the TLC3702MD is deployed.
How does the input offset voltage of the TLC3702MD compare to standard comparators like LM393?
The TLC3702MD specifies a maximum input offset voltage of 10 mV over −55°C to 125°C, significantly tighter than the LM393's 7 mV typical but 25 mV max over industrial range. While LM393 offers lower typical offset, TLC3702MD provides superior worst-case performance in extreme environments-critical for precision threshold detection in radar warning receivers or missile fuzing circuits where false triggers must be avoided.
Can the TLC3702MD operate from a 3 V supply?
No-the TLC3702MD has a minimum supply voltage of 4 V, as specified in its recommended operating conditions. This distinguishes it from the TLC3702C/I variants (3 V min) and reflects its optimization for higher-voltage military platforms. Attempting operation below 4 V may result in undefined output behavior, increased propagation delay, or failure to meet guaranteed specifications.
What package type is used for the TLC3702MD part number?
The TLC3702MD is supplied in a 14-pin ceramic dual in-line package (CERDIP or JG package), designed for hermetic sealing and high-reliability applications. Its pinout matches industry-standard dual comparator layouts, and it supports lead-free soldering with a 300°C peak reflow profile per MIL-STD-202, ensuring compatibility with defense manufacturing processes.
TLC3702MD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 4V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 90µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC3702MD FAQ
1.How can I place an order for TLC3702MD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3702MD 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 TLC3702MD reliable?
The price and inventory of TLC3702MD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3702MD is usually 5 days.
3.What payment methods are accepted for TLC3702MD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3702MD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3702MD?
TLC3702MD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3702MD 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 TLC3702MD?
For technical support, including TLC3702MD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3702MD requirements.
6.How does Aetrix verify that TLC3702MD is sourced from the original manufacturer or authorized distributors?
All TLC3702MD 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 TLC3702MD meets industry standards.
7.What is the process for return or replacement of TLC3702MD?
All TLC3702MD units undergo pre-shipment inspection (PSI). If there is an issue with TLC3702MD, 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 TLC3702MD part is unused and in its original packaging.
Return procedure for TLC3702MD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC3702MD Tags
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