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Texas Instruments TLV3402CD
- Part No.:
- TLV3402CD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV3402CD.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:227
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Product details
Overview
TLV3402CD from Texas Instruments is a dual-channel nanopower open-drain comparator with 470 nA per channel supply current, rail-to-rail input range (–0.1 V to VCC + 5 V), and operation from 2.5 V to 16 V. It delivers ultra-low quiescent power for battery-critical applications such as portable medical sensors and wireless security system voltage monitors.
For engineers reviewing the TLV3402CD datasheet, TLV3402CD pinout, TLV3402CD application, or TLV3402CD equivalent, this page provides verified electrical specs, validated dual-channel pin functions, confirmed industrial-grade temperature support (–40°C to +125°C), and real-world comparator use cases requiring nanoscale current budgeting and reverse-battery-protected sensing.
Technical Context
The TLV3402CD implements two independent high-impedance comparators in a single IC, each with open-drain CMOS output stage requiring external pull-up. Its input stage supports common-mode voltages beyond the positive rail-up to VCC + 5 V-enabling high-side sensing without level-shifting circuitry.
Designed for single-supply operation (2.5 V–16 V) or split supplies (±1.25 V–±8 V), it maintains 470 nA/channel supply current across –40°C to +125°C and features reverse battery protection up to 18 V, making it suitable for unregulated or intermittently connected power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 470 nA per channel - enables multi-year battery life in coin-cell-powered devices |
| Input Common-Mode Range | –0.1 V to VCC + 5 V - supports direct high-side voltage monitoring above supply rail |
| Supply Voltage Range | 2.5 V to 16 V - compatible with single Li-ion, multi-cell alkaline, and industrial 12-V rails |
| Input Offset Voltage | 250 µV (typ) - ensures accurate threshold detection at low signal levels |
| Propagation Delay | 55 µs (tPHL, 50 mV overdrive) - balances speed and ultra-low power in wake-up circuits |
| ESD Rating | ±2000 V HBM - robust enough for handheld instrument assembly and field deployment |
| Operating Temperature | –40°C to +125°C (I-suffix grade) - qualified for automotive under-hood and industrial control environments |
Pinout & Package
TLV3402CD is packaged in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size and standard JEDEC MS-012AC footprint.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output for comparator channel 1 - requires external pull-up resistor to define logic HIGH level |
| 2 | 1IN– | Inverting input for channel 1 - accepts signals up to VCC + 5 V without damage |
| 3 | 1IN+ | Noninverting input for channel 1 - used with reference or sensor signal for threshold comparison |
| 4 | GND | Analog ground reference - must connect to low-noise PCB ground plane to minimize offset drift |
| 5 | 2IN+ | Noninverting input for channel 2 - electrically isolated from channel 1; supports independent sensing paths |
| 6 | 2IN– | Inverting input for channel 2 - supports differential or single-ended configurations with same rail-overvoltage tolerance |
| 7 | 2OUT | Open-drain output for comparator channel 2 - independently controllable; shares no internal nodes with 1OUT |
| 8 | VCC | Positive supply pin - powers both channels; reverse-battery protected up to –18 V transient |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 470 nA per channel enables >10-year battery life in CR2032-powered IoT endpoints |
| Rail-overvoltage tolerant inputs | –0.1 V to VCC + 5 V input range eliminates need for external clamping diodes in high-side sense |
| Reverse battery protection | Withstands –18 V transients on VCC - prevents latch-up or destruction during incorrect battery insertion |
| Open-drain CMOS outputs | Supports wired-OR logic, level translation, and flexible pull-up voltage selection (e.g., 3.3 V logic with 5 V VCC) |
| Industrial temperature grade | Specified from –40°C to +125°C - meets AEC-Q100 stress requirements for non-automotive harsh environments |
Applications
| Portable Medical Sensors | Wireless Security Systems |
|---|---|
|
Use Scenario: Detecting battery depletion or sensor fault thresholds in wearable ECG patches and glucose monitors. IC Role / Device Role / Timing Role: Dual comparator monitors both battery voltage (channel 1) and sensor bias integrity (channel 2) with independent open-drain alerts. Use Value: 470 nA/channel current draw extends CR2032 battery life beyond 3 years while maintaining reliable low-power wake-up capability. |
Use Scenario: Monitoring door/window contact status and tamper switch activation in battery-operated security hubs. IC Role / Device Role / Timing Role: TLV3402CD acts as dual-input event detector: one channel for magnetic reed switch closure, second for enclosure intrusion switch. Use Value: Input overvoltage tolerance allows direct connection to 12-V alarm bus without resistive dividers, reducing BOM count and leakage error. |
| Remote Control Receivers | Ultra-Low Power Data Loggers |
|
Use Scenario: Validating IR carrier presence and demodulated command pulse width in solar-powered remote receivers. IC Role / Device Role / Timing Role: Channel 1 detects AC-coupled IR envelope amplitude; channel 2 compares against dynamically adjusted hysteresis reference. Use Value: 55 µs propagation delay at 50 mV overdrive ensures sub-millisecond response to valid commands while rejecting noise bursts. |
Use Scenario: Triggering ADC sampling and flash write cycles only when environmental thresholds (temperature/humidity) are exceeded. IC Role / Device Role / Timing Role: TLV3402CD serves as autonomous wake controller: one channel monitors thermistor divider, second validates humidity sensor output stability. Use Value: Reverse battery protection and –40°C to +125°C operation ensure reliable field deployment in unheated outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3402IDR | Same electrical specs; VSSOP-8 (DGK) package, 3.00 mm × 3.00 mm - 35% smaller footprint than SOIC | Better suited for space-constrained PCBs; thermal resistance RθJA = 186.8°C/W vs 201.9°C/W for SOIC | Select TLV3402IDR when board area is critical and reflow-compatible assembly is available |
| TLV7022DR | Higher supply current (650 nA/channel), wider VCC range (1.6 V–6.5 V), rail-to-rail output (push-pull), no reverse-battery protection | Optimized for low-voltage microcontroller interfaces (1.8 V/3.3 V logic); lacks VCC+5 V input tolerance | Choose TLV7022DR only for sub-3 V systems where push-pull output simplifies interface design |
Compared with TLV3402CD, TLV3402IDR offers identical performance in a smaller package but requires tighter layout controls, while TLV7022DR trades nanopower efficiency and overvoltage resilience for lower-voltage compatibility and integrated output drive - neither is pin-compatible, and both demand schematic and layout revision.
Availability
TLV3402CD is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and ultra-low power data loggers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV3402CD 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 specializing in analog and embedded processing technologies, with leadership in low-power signal conditioning and precision sensing solutions.
The TLV340x product line was engineered specifically for energy-constrained applications demanding nanoscale quiescent current, rail-overvoltage input tolerance, and industrial-grade reliability - targeting battery-powered instrumentation and remote monitoring systems.
FAQ
What is the maximum input voltage the TLV3402CD can tolerate relative to VCC?
The TLV3402CD supports an input common-mode voltage range of –0.1 V to VCC + 5 V. This means either input (IN+ or IN–) may safely exceed the positive supply rail by up to 5 V - for example, with VCC = 5 V, inputs may reach +10 V without damage. This feature enables direct high-side sensing without external level-shifting components, and is explicitly specified in the Absolute Maximum Ratings table (VI ≤ VCC + 5 V).
Does the TLV3402CD have built-in hysteresis?
No, the TLV3402CD does not include internal hysteresis. It is a precision comparator with typical input offset voltage of 250 µV and no intentional hysteresis band. External hysteresis must be added via positive feedback (e.g., resistor from OUT to IN+) if noise immunity at the switching threshold is required - a standard practice documented in TI's application notes for TLV340x family designs.
Can the TLV3402CD operate from a 1.8-V supply?
No, the TLV3402CD has a minimum recommended supply voltage of 2.5 V for single-supply operation. At 1.8 V, the device falls outside its specified operating conditions and will not function reliably - parameters including propagation delay, input offset, and output leakage are not characterized below 2.5 V. For 1.8-V systems, consider the TLV7022 series, which is rated down to 1.6 V.
What pull-up resistor value is recommended for the TLV3402CD open-drain outputs?
Texas Instruments specifies performance with a 1-MΩ pull-up resistor to VCC. This value balances output rise time, power consumption, and noise immunity: lower values reduce rise time but increase static current (e.g., 100 kΩ draws 50 µA at 5 V), while higher values (>10 MΩ) degrade switching speed and increase susceptibility to noise. The 1-MΩ value is validated across temperature and voltage ranges in the Electrical Characteristics table.
Is the TLV3402CD RoHS-compliant and lead-free?
Yes, the TLV3402CD is RoHS-compliant and lead-free. Per Texas Instruments' official packaging information, the SOIC (D) package uses matte tin lead finish and conforms to JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), with full compliance to EU RoHS Directive 2011/65/EU and China RoHS. The part number suffix "D" denotes the RoHS-compliant SOIC-8 variant.
TLV3402CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 16V, ±1.25V ~ 8V
- :
- 3.6mV @ 15V
- Voltage - Input Offset (Max):
- 250pA @ 15V
- Current - Input Bias (Max):
- 10mA
- Current - Output (Typ):
- 950nA
- Current - Quiescent (Max):
- 88dB CMRR, 105dB PSRR
- CMRR, PSRR (Typ):
- 300µs
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLV3402CD FAQ
1.How can I place an order for TLV3402CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3402CD 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 TLV3402CD reliable?
The price and inventory of TLV3402CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3402CD is usually 5 days.
3.What payment methods are accepted for TLV3402CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3402CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3402CD?
TLV3402CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3402CD 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 TLV3402CD?
For technical support, including TLV3402CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3402CD requirements.
6.How does Aetrix verify that TLV3402CD is sourced from the original manufacturer or authorized distributors?
All TLV3402CD 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 TLV3402CD meets industry standards.
7.What is the process for return or replacement of TLV3402CD?
All TLV3402CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV3402CD, 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 TLV3402CD part is unused and in its original packaging.
Return procedure for TLV3402CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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