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Texas Instruments TLC3704CD
- Part No.:
- TLC3704CD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3704CD.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:10,855
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Product details
Overview
TLC3704CD from Texas Instruments is a quad micropower LinCMOS voltage comparator with push-pull CMOS outputs, designed for single-supply operation from 3 V to 16 V, delivering 2.7 µs typical propagation delay (tPLH) at 5-mV overdrive and consuming only 200 µW typical power at 5 V. It serves as a low-power, space-efficient replacement for LM339 in battery-powered sensors, power supply monitors, and threshold-detection circuits.
For engineers reviewing the TLC3704CD datasheet, TLC3704CD pinout, TLC3704CD application, or TLC3704CD equivalent, key selection criteria include its commercial-temperature-rated D-package SOIC-14 form factor, ±8 mA output drive capability without external pullup resistors, input offset voltage ≤5 mV at 25°C, and compatibility with HCMOS/TTL logic interfaces.
Technical Context
The TLC3704CD 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 (≤5 mV max at 25°C). Its push-pull output stage eliminates need for external pullup resistors while driving capacitive loads directly.
It operates across 0°C to 70°C, supports common-mode input range up to VDD − 1.5 V, and features on-chip ESD protection rated to 2 kV (HBM) and 200 V (CDM), with absolute maximum supply voltage of 18 V and differential input voltage tolerance of ±18 V.
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 logic rails and wide-input industrial supplies |
| Quiescent Supply Current | 35–80 µA per device (all four comparators) - enables multi-year battery life in always-on sensing nodes |
| Propagation Delay (tPLH) | 2.7 µs typ at 5-mV overdrive - provides fast response for real-time overvoltage/undervoltage detection |
| Output Drive Capability | ±8 mA - drives LEDs, MOSFET gates, or logic inputs directly without external buffers |
| Input Offset Voltage | ≤5 mV at 25°C - ensures reliable threshold detection within ±5 mV accuracy under nominal conditions |
| Input Bias Current | 5 pA typ at 25°C - minimizes error in high-impedance sensor interfaces (e.g., thermistors, photodiodes) |
| Common-Mode Input Range | 0 V to VDD − 1.5 V - supports rail-to-rail input sensing in single-supply systems |
Pinout & Package
Package: SOIC-14 (D package), 14-pin small-outline integrated circuit with gull-wing leads, 1.27 mm pitch, body width 3.9 mm, compliant with JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input of comparator 1 - accepts reference or feedback signal for threshold comparison |
| 2 | 1IN+ | Non-inverting input of comparator 1 - connects to sensed analog signal (e.g., battery voltage) |
| 3 | 2IN− | Inverting input of comparator 2 - used for dual-threshold or window-comparator configurations |
| 4 | 2IN+ | Non-inverting input of comparator 2 - supports independent second sensing channel |
| 5 | 3IN− | Inverting input of comparator 3 - enables triple-threshold monitoring (e.g., low/normal/high states) |
| 6 | 3IN+ | Non-inverting input of comparator 3 - expands system-level fault detection granularity |
| 7 | 4IN− | Inverting input of comparator 4 - allows fourth independent decision node |
| 8 | GND | Analog/digital ground reference - must be low-impedance return path for all comparators |
| 9 | 4IN+ | Non-inverting input of comparator 4 - completes full quad-channel sensing capability |
| 10 | VDD | Positive supply rail - powers all four comparators and output stages from single source |
| 11 | 4OUT | Digital output of comparator 4 - active-high push-pull CMOS signal compatible with TTL/HCMOS |
| 12 | 3OUT | Digital output of comparator 3 - no external pullup required; sinks/sourcing up to ±8 mA |
| 13 | 2OUT | Digital output of comparator 2 - enables direct connection to microcontroller GPIO or LED anode |
| 14 | 1OUT | Digital output of comparator 1 - provides primary status flag (e.g., "battery OK" or "overtemp") |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull CMOS output | Eliminates external pullup resistor, reducing BOM count, board area, and power loss in high-duty-cycle applications |
| 200 µW typical quiescent power | Enables integration into energy-harvesting and coin-cell-powered devices without compromising battery life |
| LinCMOS process technology | Delivers picoampere-level input bias current and stable offset voltage over temperature and time |
| Single-supply operation (3–16 V) | Simplifies power architecture by removing need for dual-rail supplies in portable and industrial equipment |
| On-chip ESD protection (2 kV HBM) | Reduces need for external TVS diodes in production assemblies, lowering system-level ESD test failure rates |
Applications
| Battery Voltage Monitor | Power Supply Sequencing |
|---|---|
Use Scenario: Detecting low-battery condition in handheld medical devices before shutdown occurs. IC Role / Device Role / Timing Role: Quad comparator compares battery voltage against four precision thresholds (e.g., 3.6 V, 3.4 V, 3.2 V, 3.0 V) to trigger staged alerts. Use Value: Enables precise, low-power state management with <5 mV offset error and no external resistive dividers needed for each threshold. | Use Scenario: Ensuring correct power-up order of FPGA, memory, and analog subsystems in telecom base stations. IC Role / Device Role / Timing Role: Each comparator independently validates individual rail voltages (12 V, 5 V, 3.3 V, 1.8 V) before enabling downstream enable signals. Use Value: Guarantees robust sequencing with ±8 mA drive strength to control multiple enable pins simultaneously without buffering. |
| Overtemperature Protection | Window Comparator for Sensor Signal Validation |
Use Scenario: Shutting down motor drivers when heatsink temperature exceeds safe limits in industrial inverters. IC Role / Device Role / Timing Role: One comparator monitors thermistor voltage; others provide hysteresis and latch functionality via external feedback. Use Value: Achieves sub-10 µs response to thermal faults using internal push-pull output, eliminating RC delay from pullup networks. | Use Scenario: Validating that analog sensor output (e.g., pressure transducer) remains within expected operating bounds. IC Role / Device Role / Timing Role: Two comparators form high/low limits; third generates "in-window" logic; fourth provides fault latching. Use Value: Delivers deterministic window detection with <5 mV offset stability across 0°C–70°C, minimizing false alarms in field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Open-collector output; requires external pullup; higher supply current (500 µA typ); wider offset (±7 mV) | Compatible where board layout already includes pullups; less suitable for ultra-low-power or capacitive-load-driven designs | Select LM339DR only if legacy design reuse or cost sensitivity outweighs power/performance gains of TLC3704CD |
| TLC3702CD | Dual-channel version in same SOIC-8 package; identical electrical specs except channel count and pinout | Used when only two comparators are needed; reduces footprint and component count in space-constrained layouts | Choose TLC3702CD for dual-sensing applications requiring identical performance in smaller package |
Compared with LM339DR and TLC3702CD, the TLC3704CD uniquely delivers quad-channel micropower operation with integrated push-pull outputs-enabling lower system power, reduced PCB area, and simplified design in new battery-powered and industrial monitoring applications.
Availability
TLC3704CD is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power monitors, and embedded safety-critical threshold detection requiring stable component supply across extended production lifecycles.
Supply support for TLC3704CD 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 leadership in power management, signal chain, and high-reliability components.
The TLC3704CD belongs to TI's LinCMOS comparator family, engineered specifically for ultra-low-power, single-supply sensing applications where precision, reliability, and minimal board footprint are critical design constraints.
FAQ
What is the maximum supply voltage rating for the TLC3704CD?
The TLC3704CD has an absolute maximum supply voltage (VDD) rating of 18 V. Operation beyond this limit risks permanent damage. The recommended operating range is 3 V to 16 V, making it suitable for both 3.3 V and 5 V systems as well as higher-voltage industrial rails. Always observe derating guidelines above 70°C ambient per the Dissipation Rating Table in the datasheet.
Does the TLC3704CD require external pullup resistors on its outputs?
No, the TLC3704CD does not require external pullup resistors. Its push-pull CMOS output stage actively drives both high and low states, delivering ±8 mA output current. This eliminates the need for pullup resistors, reducing power dissipation, saving PCB space, and improving rise/fall times-especially important when driving capacitive loads like long traces or logic inputs.
What is the input offset voltage specification for the TLC3704CD over temperature?
The TLC3704CD has a maximum input offset voltage of 5 mV at 25°C and 6.5 mV over its full commercial temperature range (0°C to 70°C). This tight offset ensures accurate threshold detection in precision sensing applications. The LinCMOS process contributes to exceptional offset stability, with typical drift below 0.5 µV/°C across the operating range.
Can the TLC3704CD operate from a 3.3 V supply?
Yes, the TLC3704CD is fully specified to operate from a 3.3 V supply. Its recommended supply range starts at 3 V, and all key parameters-including propagation delay (2.7 µs typ), output drive (±8 mA), and input common-mode range (0 V to VDD − 1.5 V)-are guaranteed at 3.3 V. This makes it ideal for modern low-voltage embedded systems interfacing with 3.3 V microcontrollers.
Is the TLC3704CD pin-compatible with the LM339?
No, the TLC3704CD is not pin-compatible with the LM339. While functionally similar as quad comparators, the TLC3704CD uses a different pinout optimized for its push-pull outputs and LinCMOS architecture. The LM339 has open-collector outputs and a distinct SOIC-14 arrangement. Direct substitution requires PCB layout revision and removal of external pullup resistors.
TLC3704CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- 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):
- 100µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
TLC3704CD FAQ
1.How can I place an order for TLC3704CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704CD 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 TLC3704CD reliable?
The price and inventory of TLC3704CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704CD is usually 5 days.
3.What payment methods are accepted for TLC3704CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704CD?
TLC3704CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704CD 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 TLC3704CD?
For technical support, including TLC3704CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704CD requirements.
6.How does Aetrix verify that TLC3704CD is sourced from the original manufacturer or authorized distributors?
All TLC3704CD 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 TLC3704CD meets industry standards.
7.What is the process for return or replacement of TLC3704CD?
All TLC3704CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704CD, 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 TLC3704CD part is unused and in its original packaging.
Return procedure for TLC3704CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC3704CD Tags
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LM2903DR
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LM339DR
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