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Texas Instruments TLC3704CN
- Part No.:
- TLC3704CN
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC3704CN.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,758
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Product details
Overview
TLC3704CN 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 TLC3704CN datasheet, TLC3704CN pinout, TLC3704CN application, or TLC3704CN equivalent, key selection criteria include its rail-to-rail input range (0 V to VDD − 1.5 V), ±8 mA output drive capability, 5 mV max input offset voltage over 0°C to 70°C, and compatibility with TTL logic levels without external pullups.
Technical Context
The TLC3704CN 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) across temperature. Its push-pull output stage eliminates the need for external pullup resistors, enabling direct capacitive load driving up to 50 pF while maintaining fast response.
It operates within the commercial temperature range (0°C to 70°C) and supports common-mode input voltages from −0.2 V to VDD − 1.5 V. Absolute maximum ratings include ±18 V differential input voltage and −0.3 V to 18 V supply voltage, with on-chip ESD protection rated to 2 kV HBM and 200 V CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct use with 3.3 V, 5 V, and 12 V systems without level shifting |
| Quiescent Supply Current | 35–80 µA (all four channels, 25°C) - supports multi-year battery life in always-on monitoring applications |
| Propagation Delay (tPLH) | 2.7 µs typ at 5-mV overdrive, 50 pF load - ensures timely response in window-comparator or overvoltage latch circuits |
| Input Offset Voltage | ≤5 mV max at 25°C, ≤6.5 mV over full 0°C–70°C range - guarantees reliable detection of small analog thresholds |
| Output Drive Capability | ±8 mA - sufficient to directly drive LEDs, small relays, or logic inputs without buffering |
| Common-Mode Input Range | 0 V to VDD − 1.5 V - allows sensing near ground or rail in single-supply configurations |
| ESD Protection | 2 kV HBM, 200 V CDM - reduces risk of field failure during handling and PCB assembly |
Pinout & Package
Package: 14-pin Plastic Dual In-line Package (PDIP-N), body width 7.62 mm, lead pitch 2.54 mm, RoHS-compliant.
| 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 for high-threshold detection |
| 3 | 1OUT | Digital output of comparator 1 - active-high CMOS/TTL-compatible push-pull signal |
| 4 | 2IN− | Inverting input of comparator 2 - used for dual-threshold or hysteresis configuration |
| 5 | 2IN+ | Non-inverting input of comparator 2 - pairs with pin 4 for independent second channel |
| 6 | 2OUT | Digital output of comparator 2 - fully isolated from channel 1, no crosstalk |
| 7 | GND | Analog and digital ground reference - must be low-impedance return path for all four channels |
| 8 | 3OUT | Digital output of comparator 3 - identical electrical behavior to pins 3 and 6 |
| 9 | 3IN− | Inverting input of comparator 3 - supports three independent comparisons per package |
| 10 | 3IN+ | Non-inverting input of comparator 3 - enables compact multi-level voltage monitoring |
| 11 | 4OUT | Digital output of comparator 4 - completes quad-channel functionality |
| 12 | 4IN− | Inverting input of comparator 4 - usable for window comparator or fault-lockout logic |
| 13 | 4IN+ | Non-inverting input of comparator 4 - provides fourth independent sensing node |
| 14 | VDD | Positive supply rail - powers all four comparators and output stages simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull CMOS output | Eliminates external pullup resistors, saving PCB area, BOM cost, and power dissipation in high-density designs |
| Micropower operation | 200 µW typical at 5 V - extends battery runtime in portable instrumentation and IoT edge nodes |
| LinCMOS process technology | Delivers <1 pA input bias current and stable offset voltage over temperature, critical for precision sensor interfaces |
| Single-supply compatibility | Operates down to 3 V with rail-to-rail input range - simplifies design in 3.3 V microcontroller-based systems |
| TTL/CMOS output compatibility | Meets both TTL high-level minimum (2.4 V) and CMOS logic thresholds - ensures interoperability with mixed-logic families |
Applications
| Battery Voltage Monitor | Power Supply Sequencing |
|---|---|
Use Scenario: Detecting low-battery condition in handheld medical devices before shutdown. IC Role / Device Role / Timing Role: Quad comparator compares battery voltage against four reference thresholds to generate graded alert signals. Use Value: Enables precise, multi-level battery state-of-charge reporting without external ADC or microcontroller overhead. | Use Scenario: Ensuring correct power-up order of FPGA core, I/O, and auxiliary rails in telecom equipment. IC Role / Device Role / Timing Role: Each comparator validates individual rail voltage exceeds its target before enabling next stage. Use Value: Prevents latch-up and damage by enforcing strict sequencing with deterministic, resistor-set thresholds. |
| Overvoltage Protection Circuit | Window Comparator for Sensor Signal Validation |
Use Scenario: Safeguarding 12 V automotive ECUs against transient surges above 14.5 V. IC Role / Device Role / Timing Role: One comparator channel triggers shutdown when input exceeds upper limit; another monitors for undervoltage. Use Value: Provides fail-safe hardware-level protection independent of firmware, with sub-3 µs response to transients. | Use Scenario: Validating thermistor output stays within acceptable range in HVAC control systems. IC Role / Device Role / Timing Role: Two comparators form a window detector; third and fourth provide hysteresis and status latching. Use Value: Rejects noise-induced false triggers while maintaining tight 50 mV window tolerance across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339N | Higher quiescent current (500 µA vs 80 µA), open-collector outputs requiring pullup resistors, slower tPLH (1.3 µs min but typically >10 µs at low overdrive) | Suitable for legacy 5 V systems where power budget is not constrained and board space permits pullup resistors | Select LM339N only if backward compatibility with existing schematics is required; avoid for new battery-powered designs. |
| TLC3702CDR | Dual-channel version in SOIC-8; same LinCMOS process, 200 µW power, 2.7 µs tPLH, but half the channel count and smaller footprint | Better suited for space-constrained applications needing only two comparators, such as dual-rail monitors or simple go/no-go testers | Choose TLC3702CDR when channel count can be reduced and PCB real estate is premium; not a drop-in replacement for quad functions. |
Compared with LM339N, TLC3704CN delivers 90% lower supply current and eliminates pullup components; compared with TLC3702CDR, it provides double the channel density in a through-hole package ideal for prototyping and industrial control panels.
Availability
TLC3704CN is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power monitoring, and automotive subsystems requiring stable component supply across long production lifecycles.
Supply support for TLC3704CN 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 expertise in precision analog ICs and industrial-grade reliability.
The TLC3704CN belongs to TI's LinCMOS comparator family, engineered for ultra-low-power, single-supply operation in sensor interfaces, power management, and safety-critical monitoring systems where accuracy and longevity are essential.
FAQ
What is the maximum operating supply voltage for the TLC3704CN?
The TLC3704CN supports a supply voltage range of 3 V to 16 V, with an absolute maximum rating of 18 V. Operation beyond 16 V is not recommended, as electrical characteristics are only guaranteed within the recommended operating conditions. Exceeding 18 V risks permanent damage per the absolute maximum ratings table in the datasheet.
Does the TLC3704CN require external pullup resistors on its outputs?
No, the TLC3704CN 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 consumption, board space, and component count compared to open-collector comparators like the LM339.
What is the input offset voltage specification for the TLC3704CN over temperature?
The TLC3704CN has a maximum input offset voltage of 5 mV at 25°C and ≤6.5 mV across its full commercial temperature range of 0°C to 70°C. This specification ensures consistent threshold accuracy in ambient-temperature-stable applications such as panel meters and benchtop test equipment.
Can the TLC3704CN interface directly with TTL logic inputs?
Yes, the TLC3704CN outputs are fully compatible with TTL logic inputs. Its high-level output voltage (VOH) is ≥4.3 V at 4 mA load and 70°C, exceeding the TTL minimum high-level input threshold of 2.0 V, and its low-level output voltage (VOL) is ≤375 mV, well below the TTL maximum low-level input threshold of 0.8 V.
Is the TLC3704CN pin-compatible with other variants like the TLC3704IN or TLC3704M?
Yes, the TLC3704CN shares identical pinout and package (14-pin PDIP-N) with TLC3704IN, TLC3704MD, and TLC3704CPW. All variants maintain functional equivalence in electrical behavior and timing; differences lie solely in temperature grade (0°C–70°C for CN), packaging, and screening - making them mechanically and electrically interchangeable in the same socket.
TLC3704CN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Through Hole
- :
- 14-PDIP
TLC3704CN FAQ
1.How can I place an order for TLC3704CN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704CN 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 TLC3704CN reliable?
The price and inventory of TLC3704CN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704CN is usually 5 days.
3.What payment methods are accepted for TLC3704CN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704CN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704CN?
TLC3704CN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704CN 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 TLC3704CN?
For technical support, including TLC3704CN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704CN requirements.
6.How does Aetrix verify that TLC3704CN is sourced from the original manufacturer or authorized distributors?
All TLC3704CN 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 TLC3704CN meets industry standards.
7.What is the process for return or replacement of TLC3704CN?
All TLC3704CN units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704CN, 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 TLC3704CN part is unused and in its original packaging.
Return procedure for TLC3704CN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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