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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Texas Instruments TLC3704CNSR

Name: TLC3704CNSR
Brand: Texas Instruments
SKU: TLC3704CNSR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLC3704CNSR

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: 14-SOIC (0.209", 5.30mm Width)

Datasheet:: TLC3704CNSR.pdf

Description:: IC COMPARATOR 4 GEN PUR 14SO

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Product details

Overview

TLC3704CNSR from Texas Instruments is a quad micropower LinCMOS voltage comparator IC designed for single-supply operation (3 V to 16 V), delivering 2.7 µs typical propagation delay (t_PLH) with 5-mV overdrive, ±8 mA push-pull CMOS output drive, and 200 µW typical supply power at 5 V. It serves as a low-power, pin-compatible upgrade to LM339 in battery-powered sensors, power supply monitors, and threshold-detection circuits.

For engineers reviewing the TLC3704CNSR datasheet, TLC3704CNSR pinout, TLC3704CNSR application, or TLC3704CNSR equivalent, key selection criteria include its rail-to-rail input range (0 V to V_DD − 1.5 V), 5 mV max input offset voltage (0°C to 70°C), ESD-protected inputs (2 kV HBM), and compatibility with TTL/CMOS logic loads without external pullups.

Technical Context

The TLC3704CNSR integrates four independent comparators on a LinCMOS process, enabling stable analog performance-low input bias current (5 pA typ at 25°C), high CMRR (84 dB), and robust supply-voltage rejection (85 dB)-while maintaining micropower operation. Its push-pull output stage eliminates need for external pullup resistors, directly driving capacitive loads up to 50 pF with defined rise/fall times.

Designed for commercial-temperature operation (0°C to 70°C), the device supports wide common-mode input voltage (−0.2 V to V_DD − 1.5 V) and tolerates differential inputs up to ±18 V. Absolute maximum ratings include 18 V supply, ±20 mA output current per channel, and 40 mA total V_DD supply 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 logic, plus higher-voltage industrial rails without level-shifting.
Propagation Delay (t_PLH)	2.7 µs typ @ 5-mV overdrive - ensures fast response in overvoltage/undervoltage detection and window-comparator applications.
Input Offset Voltage	5 mV max @ 0°C to 70°C - guarantees reliable switching accuracy across full commercial temperature range.
Supply Current (All 4 Channels)	80 µA max @ 25°C - delivers true micropower operation for multi-year battery life in portable instrumentation.
Output Drive Capability	±8 mA - drives LEDs, MOSFET gates, or logic inputs directly; eliminates external buffer stages in discrete threshold circuits.
Input Common-Mode Range	0 V to V_DD − 1.5 V - supports ground-referenced sensing and rail-sensing without clamping diodes.
ESD Protection	2 kV HBM - meets industrial handling requirements and reduces board-level protection component count.

Pinout & Package

Package: 14-pin plastic DIP (N package), through-hole mounting, 0.3-inch width, JEDEC MS-001AC compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	1IN−	Inverting input of Comparator 1 - accepts reference or sensed signal; supports differential input up to ±18 V.
2	1IN+	Non-inverting input of Comparator 1 - used for threshold comparison; common-mode range extends to V_DD − 1.5 V.
3	1OUT	Digital CMOS push-pull output of Comparator 1 - sinks or sources up to ±8 mA; no pullup required.
4	2IN−	Inverting input of Comparator 2 - electrically isolated from other channels; enables independent dual-threshold detection.
5	2IN+	Non-inverting input of Comparator 2 - supports identical input specifications as Pin 2.
6	2OUT	Digital CMOS push-pull output of Comparator 2 - fully compatible with TTL and CMOS logic families.
7	GND	Analog/digital ground reference - shared return path for all four comparators and supply current.
8	3OUT	Digital CMOS push-pull output of Comparator 3 - identical electrical behavior to Pins 3 and 6.
9	3IN−	Inverting input of Comparator 3 - no internal connection to other pins; supports independent signal routing.
10	3IN+	Non-inverting input of Comparator 3 - matches input impedance (>10¹² Ω) and bias current specs of other inputs.
11	4OUT	Digital CMOS push-pull output of Comparator 4 - capable of driving 50-pF load with <125 ns rise time.
12	4IN−	Inverting input of Comparator 4 - validated for continuous operation beyond supply rails with ±5 mA external current limiting.
13	4IN+	Non-inverting input of Comparator 4 - supports same overvoltage tolerance and ESD protection as all inputs.
14	V_DD	Positive supply rail - powers all four comparators; decoupling capacitor (0.1 µF) recommended at pin.

Key Features

Feature	Design Value
Micropower Operation	200 µW typical at 5 V - reduces thermal load and extends battery life in always-on monitoring systems.
Push-Pull CMOS Output	No external pullup resistor needed - saves PCB area, BOM cost, and simplifies layout for multi-comparator designs.
Wide Supply Range	3 V to 16 V - supports direct integration into mixed-voltage systems (e.g., 3.3 V MCU + 12 V sensor supply).
High Input Impedance	>10¹² Ω input resistance - minimizes loading on high-impedance sources like thermistors or photodiodes.
On-Chip ESD Protection	2 kV HBM - eliminates need for external TVS diodes in standard industrial assembly environments.
LinCMOS Process Technology	Stable input offset (<5 mV max) over temperature - ensures consistent trip-point accuracy without calibration.

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 cell voltage against four precision thresholds to trigger staged alerts (e.g., 3.4 V, 3.2 V, 3.0 V, 2.8 V). Use Value: 200 µW quiescent power enables continuous monitoring without depleting coin-cell batteries over months.	Use Scenario: Enforcing strict power-up order for FPGA, memory, and analog subsystems. IC Role / Device Role / Timing Role: Each comparator validates rail presence (1.2 V, 1.8 V, 3.3 V, 5 V) and asserts enable signals only when all are within spec. Use Value: Push-pull outputs drive FPGA configuration pins directly, eliminating external logic buffers and reducing startup latency.
Overvoltage Protection Circuit	Window Comparator for Sensor Interface
Use Scenario: Safeguarding USB-C PD ports against transient overvoltage events. IC Role / Device Role / Timing Role: One comparator monitors bus voltage; output triggers gate driver to disconnect FET within 2.7 µs. Use Value: 5-mV overdrive response time ensures protection activates before downstream ICs sustain damage during 100-V/µs transients.	Use Scenario: Validating thermistor output stays within safe operating band in HVAC control. IC Role / Device Role / Timing Role: Two comparators form window detector (e.g., 1.2 V low, 2.8 V high); third generates fault flag if outside bounds. Use Value: Rail-to-rail input range allows direct connection to ratiometric ADC reference, avoiding signal conditioning op-amps.

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 cell voltage against four precision thresholds to trigger staged alerts (e.g., 3.4 V, 3.2 V, 3.0 V, 2.8 V).

Use Value: 200 µW quiescent power enables continuous monitoring without depleting coin-cell batteries over months.

Use Scenario: Enforcing strict power-up order for FPGA, memory, and analog subsystems.

IC Role / Device Role / Timing Role: Each comparator validates rail presence (1.2 V, 1.8 V, 3.3 V, 5 V) and asserts enable signals only when all are within spec.

Use Value: Push-pull outputs drive FPGA configuration pins directly, eliminating external logic buffers and reducing startup latency.

Overvoltage Protection Circuit

Window Comparator for Sensor Interface

Use Scenario: Safeguarding USB-C PD ports against transient overvoltage events.

IC Role / Device Role / Timing Role: One comparator monitors bus voltage; output triggers gate driver to disconnect FET within 2.7 µs.

Use Value: 5-mV overdrive response time ensures protection activates before downstream ICs sustain damage during 100-V/µs transients.

Use Scenario: Validating thermistor output stays within safe operating band in HVAC control.

IC Role / Device Role / Timing Role: Two comparators form window detector (e.g., 1.2 V low, 2.8 V high); third generates fault flag if outside bounds.

Use Value: Rail-to-rail input range allows direct connection to ratiometric ADC reference, avoiding signal conditioning op-amps.

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; 1.3 mA supply current per comparator; 1.3 µs t_PLH.	Higher power draw limits use in battery systems; slower response at low overdrive; TTL-compatible but not CMOS-push-pull.	Select LM339DR only when legacy open-collector interface or lower propagation delay at high overdrive is prioritized over power savings.
TLC3702CDR	Dual-channel version; identical LinCMOS specs, package (SOIC-8); 100 µA max IDD; same 5-mV V_IO limit.	Half the channel count; suitable for space-constrained dual-threshold designs where quad density is unnecessary.	Choose TLC3702CDR when board area is critical and only two comparators are needed-reduces footprint by 43% vs. 14-pin DIP.

Compared with LM339DR and TLC3702CDR, TLC3704CNSR uniquely combines quad-channel density, micropower consumption, and push-pull drive in a through-hole DIP package-making it optimal for cost-sensitive, low-power, and serviceable industrial control boards requiring four independent thresholds.

Availability

TLC3704CNSR is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power sequencing, and overvoltage protection circuits requiring stable component supply across long production lifecycles.

Supply support for TLC3704CNSR 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 power management solutions.

The TLC3704CNSR belongs to TI's LinCMOS comparator family, engineered specifically for ultra-low-power, single-supply applications where input accuracy, output drive capability, and temperature stability are critical-such as portable test equipment and energy-harvesting systems.

FAQ

What is the maximum supply voltage rating for the TLC3704CNSR?

The TLC3704CNSR has an absolute maximum supply voltage (V_DD) of 18 V. However, its recommended operating range is 3 V to 16 V. Operating above 16 V risks exceeding safe dissipation limits and may degrade long-term reliability-even though the device may function temporarily. Always observe the 16 V upper limit in production designs using TLC3704CNSR.

Does the TLC3704CNSR require external pullup resistors on its outputs?

No, the TLC3704CNSR does not require external pullup resistors. Its push-pull CMOS output stage actively drives both high and low states, delivering ±8 mA per output. This eliminates the power loss, board space, and timing uncertainty associated with pullup resistors-enabling direct interface with TTL and CMOS loads while preserving the 2.7 µs propagation delay of TLC3704CNSR.

What is the input common-mode voltage range for the TLC3704CNSR?

The TLC3704CNSR supports an input common-mode voltage range of −0.2 V to V_DD − 1.5 V over its full operating temperature range (0°C to 70°C). This allows inputs to operate down to slightly below ground and up to 1.5 V below the positive rail-enabling ground-referenced sensing and rail-sensing without external level-shifting circuitry in designs using TLC3704CNSR.

Can the TLC3704CNSR drive capacitive loads directly?

Yes, the TLC3704CNSR is explicitly characterized to drive capacitive loads up to 50 pF directly, with specified rise/fall times (125 ns tr, 50 ns tf) and propagation delay (2.7 µs t_PLH). Its push-pull output stage provides controlled edge rates without ringing or oscillation-making it suitable for driving ADC sample-and-hold inputs, logic gates, or small MOSFET gates without added buffering when using TLC3704CNSR.

Is the TLC3704CNSR pin-compatible with the LM339?

Yes, the TLC3704CNSR uses the same 14-pin DIP pinout as the LM339, with identical assignment of IN+, IN−, OUT, GND, and V_DD. However, unlike the LM339's open-collector outputs, TLC3704CNSR features push-pull outputs-so existing LM339 designs can be upgraded to TLC3704CNSR by removing pullup resistors and verifying logic-high voltage levels remain compatible with downstream receivers.

TLC3704CNSR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 14-SOIC (0.209", 5.30mm Width)

Series:: LinCMOS™

Packaging:: Tape & Reel (TR)

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-SO

TLC3704CNSR FAQ

1.How can I place an order for TLC3704CNSR through Aetrix?

Please submit a Request for Quotation (RFQ) for TLC3704CNSR 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 TLC3704CNSR reliable?

The price and inventory of TLC3704CNSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704CNSR is usually 5 days.

3.What payment methods are accepted for TLC3704CNSR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704CNSR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLC3704CNSR?

TLC3704CNSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLC3704CNSR 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 TLC3704CNSR?

For technical support, including TLC3704CNSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704CNSR requirements.

6.How does Aetrix verify that TLC3704CNSR is sourced from the original manufacturer or authorized distributors?

All TLC3704CNSR 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 TLC3704CNSR meets industry standards.

7.What is the process for return or replacement of TLC3704CNSR?

All TLC3704CNSR units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704CNSR, 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 TLC3704CNSR part is unused and in its original packaging.

Return procedure for TLC3704CNSR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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