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Texas Instruments TLC3702IDR
- Part No.:
- TLC3702IDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3702IDR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,560
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Product details
Overview
TLC3702IDR from Texas Instruments is a dual micropower LinCMOS™ voltage comparator with push-pull CMOS outputs, 5-mV max input offset voltage at 25°C, 2.7 μs typical propagation delay (tPLH) with 5-mV overdrive, and single-supply operation from 3 V to 16 V. It drives capacitive loads directly without external pullup resistors and is rated for industrial temperature range (−40°C to +85°C), making it suitable for battery-powered sensor interfaces and precision threshold detection in embedded control systems.
For engineers reviewing the TLC3702IDR datasheet, TLC3702IDR pinout, TLC3702IDR application, or TLC3702IDR equivalent, key selection considerations include its 18–40 μA supply current (both comparators, no load), ±8 mA output drive capability, 84 dB common-mode rejection ratio (CMRR), and compatibility with HCMOS/TTL logic families - all critical for low-power, noise-immune analog-to-digital decision circuits.
Technical Context
The TLC3702IDR implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering 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 external pullup components while maintaining fast edge transitions and full TTL-compatible voltage levels.
Designed for single-supply operation, the device supports common-mode input voltages from −0.2 V to (VDD − 1.5 V) over −40°C to +85°C, and features on-chip ESD protection rated to 2 kV (HBM) and 200 V (CDM). Absolute maximum ratings include ±18 V differential input voltage and ±20 mA per output current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct interface with 3.3 V and 5 V microcontrollers and wide-input industrial power rails. |
| Input Offset Voltage (max) | 7 mV over −40°C to +85°C - ensures reliable threshold detection accuracy in temperature-varying environments. |
| Propagation Delay (tPLH/tPHL) | 2.7 μs / 2.3 μs typ at 5 V, 5-mV overdrive - supports sub-100-kHz window-comparison timing in real-time monitoring. |
| Supply Current (both comparators) | 65 μA max over −40°C to +85°C - enables multi-year operation from coin-cell batteries in IoT endpoint sensors. |
| Output Drive Capability | ±20 mA per output - directly drives LEDs, small relays, or logic inputs without external buffers. |
| Common-Mode Rejection Ratio | 84 dB min - rejects noise coupled onto shared reference or supply lines in noisy industrial settings. |
| Input Bias Current (max) | 2 nA at +85°C - preserves signal integrity when used with high-impedance sources like thermistors or photodiodes. |
Pinout & Package
Package: SOIC-8 (D package), tape-and-reel variant indicated by 'R' suffix (TLC3702IDR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Push-pull CMOS output of comparator 1 - sinks or sources current without pullup; logic-high ≈ VDD, logic-low ≈ 0 V. |
| 2 | IN1− | Inverting input of comparator 1 - accepts signals up to VDD − 1.5 V; internally protected against ±18 V differential stress. |
| 3 | IN1+ | Non-inverting input of comparator 1 - same voltage range and ESD protection as IN1−. |
| 4 | GND | Analog/digital ground reference - must be low-impedance return path for both comparators and output loads. |
| 5 | VDD | Positive supply rail - powers both comparators and output stages; decoupling capacitor required near pin. |
| 6 | OUT2 | Push-pull CMOS output of comparator 2 - electrically identical to OUT1; supports independent load switching. |
| 7 | IN2− | Inverting input of comparator 2 - fully isolated from comparator 1; no crosstalk under normal operation. |
| 8 | IN2+ | Non-inverting input of comparator 2 - matches IN1+ performance; enables dual-threshold or window-comparator topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull CMOS output | Eliminates need for external pullup resistors - saves PCB area, reduces BOM count, and cuts quiescent power by >100 μW per channel. |
| LinCMOS™ process technology | Delivers 5 pA input bias current and <10 mV input offset drift over temperature - enables precision DC-coupled sensing without trimming. |
| Single-supply operation | Supports 3 V to 16 V rails - interoperable with Li-ion, 5 V USB, and 12 V industrial supplies without level-shifting circuitry. |
| On-chip ESD protection | HBM 2 kV / CDM 200 V - meets IEC 61000-4-2 Level 2 requirements for board-level robustness during handling and deployment. |
| Industrial temperature rating | −40°C to +85°C operation - qualified for use in automotive cabin modules, factory automation controllers, and outdoor metering equipment. |
Applications
| Battery-Powered Sensor Interface | Overvoltage/Undervoltage Protection |
|---|---|
|
Use Scenario: Monitoring voltage of a 3.7 V Li-ion cell using resistor-divider feedback into TLC3702IDR inputs. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel triggers low-voltage alarm below 3.0 V, the other asserts overvoltage above 4.2 V. Use Value: 65 μA total supply current extends battery life beyond 5 years in sleep-mode applications; push-pull outputs directly drive MCU interrupt pins. |
Use Scenario: Detecting out-of-spec AC-DC adapter output before enabling downstream 5 V logic rails. IC Role / Device Role / Timing Role: Comparator 1 monitors upper threshold (5.5 V), comparator 2 monitors lower threshold (4.5 V); outputs feed OR gate to disable enable line on fault. Use Value: 2.3 μs tPHL response ensures shutdown within 3 μs of overvoltage event - protects 5 V FPGAs and USB peripherals from damage. |
| Industrial Temperature Threshold Alarm | Optical Smoke Detector Signal Conditioning |
|
Use Scenario: Converting thermistor voltage to digital alert when furnace temperature exceeds 120°C. IC Role / Device Role / Timing Role: Single comparator compares conditioned thermistor output against precision reference; second comparator reserved for hysteresis or backup sensing. Use Value: 84 dB CMRR rejects 60 Hz pickup from adjacent motor drives; −40°C to +85°C rating ensures reliability inside control cabinets. |
Use Scenario: Amplifying and comparing photodiode current from smoke chamber to detect obscuration events. IC Role / Device Role / Timing Role: High-impedance input accepts nanoamp-level photocurrent; push-pull output drives buzzer driver transistor without base-resistor network. Use Value: 5 pA input bias current prevents signal loss across MΩ-range transimpedance gain resistors; 20 mA sink capability drives 100 mA buzzer via Darlington pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Open-collector output, higher supply current (500 μA typ), no internal ESD protection beyond 2 kV HBM. | Requires external pullup resistor; less suitable for capacitive-load driving or low-noise analog front-ends. | Choose LM393DR only if cost is primary constraint and system already includes pullup networks and external ESD suppression. |
| TLV3702IDR | Lower supply current (1.3 μA typ), rail-to-rail input, but reduced output drive (±2 mA) and narrower VDD range (2.7 V to 16 V). | Better for ultra-low-power wake-on-event designs; insufficient for driving LEDs or logic with heavy fanout. | Choose TLV3702IDR when battery life dominates design priority and output loading is ≤1 mA; retain TLC3702IDR for mixed-signal interfacing requiring robust drive. |
Compared with LM393DR and TLV3702IDR, the TLC3702IDR uniquely balances micropower operation (65 μA), strong output drive (±20 mA), and integrated ESD protection - making it optimal for industrial sensor nodes where reliability, speed, and component count are jointly constrained.
Availability
TLC3702IDR is available at Aetrix Electronics and suitable for battery-powered sensor interfaces, overvoltage/undervoltage protection circuits, and industrial temperature threshold alarms requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC3702IDR 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.
The TLC3702IDR belongs to TI's LinCMOS™ comparator product line, engineered for low-power, high-accuracy voltage comparison in single-supply systems - targeting industrial automation, portable instrumentation, and energy-efficient control applications.
FAQ
What is the operating temperature range for the TLC3702IDR?
The TLC3702IDR is specified for industrial temperature operation from −40°C to +85°C. This rating is validated per TI's characterization data for the 'I' grade variant and applies across all electrical parameters including input offset voltage (7 mV max), supply current (65 μA max), and propagation delay. The D-package SOIC construction supports reflow soldering per JEDEC J-STD-020.
Does the TLC3702IDR require external pullup resistors on its outputs?
No, the TLC3702IDR does not require external pullup resistors. Its push-pull CMOS output stage actively drives both logic-high (≈VDD) and logic-low (≈0 V) states, enabling direct connection to capacitive loads up to 50 pF while maintaining 2.7 μs tPLH response. This architecture eliminates pullup power loss and board space overhead inherent in open-collector comparators like the LM393.
What is the maximum differential input voltage the TLC3702IDR can withstand?
The TLC3702IDR supports a maximum differential input voltage of ±18 V, as defined in its Absolute Maximum Ratings. This specification allows safe operation with input signals exceeding the supply rail - for example, detecting 24 V field signals referenced to ground while powered from a 5 V rail - provided input current is externally limited to ±5 mA per pin per TI's design guidelines.
How does the TLC3702IDR compare to the LM339 in power consumption?
The TLC3702IDR consumes approximately 1/20th the supply current of the LM339 at comparable response times: 65 μA max (TLC3702IDR) versus ~1.5 mA (LM339) at 5 V. This 20× reduction stems from LinCMOS™ process optimization and eliminates thermal concerns in sealed enclosures, extending operational lifetime in always-on sensor nodes where the TLC3702IDR replaces legacy bipolar comparators.
Can the TLC3702IDR drive a 10 mA LED directly from its output?
Yes, the TLC3702IDR can drive a 10 mA LED directly. Each output delivers ±20 mA sink/source capability, well above 10 mA LED requirements. When configured with the anode tied to VDD and cathode to OUT1, the comparator sinks 10 mA with <300 mV saturation voltage at 25°C - ensuring >3 V forward drop across typical red/green LEDs while maintaining logic-level compatibility with downstream circuitry.
TLC3702IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 65µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC3702IDR FAQ
1.How can I place an order for TLC3702IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3702IDR 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 TLC3702IDR reliable?
The price and inventory of TLC3702IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3702IDR is usually 5 days.
3.What payment methods are accepted for TLC3702IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3702IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3702IDR?
TLC3702IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3702IDR 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 TLC3702IDR?
For technical support, including TLC3702IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3702IDR requirements.
6.How does Aetrix verify that TLC3702IDR is sourced from the original manufacturer or authorized distributors?
All TLC3702IDR 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 TLC3702IDR meets industry standards.
7.What is the process for return or replacement of TLC3702IDR?
All TLC3702IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC3702IDR, 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 TLC3702IDR part is unused and in its original packaging.
Return procedure for TLC3702IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC3702IDR Tags
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