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Texas Instruments TLV3402CDRG4
- Part No.:
- TLV3402CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV3402CDRG4.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,625
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Product details
Overview
TLV3402CDRG4 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 across 2.5 V to 16 V supply. It features reverse battery protection up to 18 V and is rated for industrial temperature range (–40°C to +125°C). It serves as a low-power threshold detector in battery-critical systems such as portable medical sensors and wireless security nodes.
For engineers reviewing the TLV3402CDRG4 datasheet, TLV3402CDRG4 pinout, TLV3402CDRG4 application, or TLV3402CDRG4 equivalent, key selection considerations include ultra-low quiescent current, extended common-mode input beyond VCC, open-drain output compatibility with mixed-voltage logic, and VSSOP-8 packaging for space-constrained PCB layouts.
Technical Context
The TLV3402CDRG4 implements a CMOS input stage with differential pair architecture optimized for sub-µA biasing, enabling stable operation down to 2.5 V while maintaining 250 µV typical input offset voltage. Its open-drain output stage requires external pull-up and supports level-shifting across voltage domains.
Input common-mode range extends –0.1 V below ground and up to 5 V above VCC, allowing direct sensing of signals exceeding the supply rail-critical for high-side voltage monitoring and reverse-polarity protected systems. Propagation delay is overdrive-dependent: 55 µs (low-to-high) and 30 µs (high-to-low) at 50 mV overdrive with 1 MΩ pull-up and 10 pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 470 nA typical - enables multi-year battery life in coin-cell-powered devices |
| Input Common-Mode Range | –0.1 V to VCC + 5 V - supports high-side sensing and reverse-battery tolerant designs |
| Supply Voltage Range | 2.5 V to 16 V single supply - compatible with Li-ion, 9 V batteries, and industrial 12 V rails |
| Input Offset Voltage | 250 µV typical - ensures accurate threshold detection without calibration |
| Propagation Delay (tPLH/tPHL) | 55 µs / 30 µs at 50 mV overdrive - balances speed and power for nanopower applications |
| ESD Rating (HBM) | ±2000 V - meets IEC 61000-4-2 Level 2 for robust handling in production and field use |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial control, and outdoor IoT |
Pinout & Package
The TLV3402CDRG4 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad for improved heat dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output for 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-impedance system ground plane |
| 5 | 2IN+ | Noninverting input for channel 2 - independent of channel 1 for dual-threshold or window detection |
| 6 | 2IN– | Inverting input for channel 2 - supports differential or single-ended sensing per channel |
| 7 | 2OUT | Open-drain output for channel 2 - electrically isolated from 1OUT; enables separate logic domains |
| 8 | VCC | Positive supply pin - decoupling capacitor (0.01 µF ceramic + 10 µF electrolytic) required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower consumption | 470 nA per channel - reduces battery drain by >90% vs. standard comparators, extending shelf life |
| Rail-to-rail input range | –0.1 V to VCC + 5 V - eliminates need for level-shifting circuitry when monitoring above-VCC signals |
| Reverse battery protection | Withstands –18 V on VCC - prevents latch-up or destruction during incorrect battery insertion |
| Open-drain CMOS output | Compatible with 1.8 V, 3.3 V, and 5 V logic families via external pull-up - enables flexible interface design |
| Industrial temperature grade | –40°C to +125°C operation - validated for reliability in uncontrolled environments without derating |
Applications
| Portable Medical Sensors | Wireless Security Nodes |
|---|---|
|
Use Scenario: Detecting ECG lead-off or battery depletion in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Dual-channel comparator performing simultaneous voltage threshold checks on analog sensor outputs and supply rails. Use Value: 470 nA per channel current draw preserves coin-cell battery life for >3 years; extended input range accommodates ±100 mV electrode offsets without external amplification. |
Use Scenario: Monitoring door/window contact status and motion sensor triggers in battery-powered smart home hubs. IC Role / Device Role / Timing Role: Threshold detector converting mechanical switch closures and PIR output pulses into clean digital logic levels. Use Value: Open-drain outputs interface directly with 3.3 V microcontroller GPIOs; reverse-battery tolerance prevents field failure during user battery replacement. |
| Handheld Test Instruments | Ultra-Low-Power IoT Endpoints |
|
Use Scenario: Auto-ranging voltage measurement front-end in pocket multimeters with auto-shutdown. IC Role / Device Role / Timing Role: Precision comparator selecting gain stages and initiating sleep mode when input falls below detection threshold. Use Value: 250 µV input offset ensures <10 mV measurement accuracy at lowest range; 2.5 V minimum supply enables operation from partially discharged alkaline cells. |
Use Scenario: Environmental sensor node detecting temperature/humidity thresholds before transmitting data via BLE. IC Role / Device Role / Timing Role: Wake-up trigger that asserts interrupt to MCU only when ambient conditions exceed preset limits. Use Value: Sub-µA total quiescent current allows >10-year deployment on primary lithium batteries; VSSOP-8 footprint minimizes PCB area in constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3402IDGKR | Same electrical specs; I-suffix industrial grade (–40°C to +125°C) with identical VSSOP-8 package and pinout | No functional difference - suitable for same designs requiring full industrial temp range | Select TLV3402IDGKR if guaranteed operation at –40°C is required; TLV3402CDRG4 is C-suffix (0°C to +70°C) but often operates beyond spec in practice |
| TLV7012DRYR | Lower supply current (350 nA), smaller X2SON-8 package (1.6 mm × 1.6 mm), but narrower input range (to VCC only, no VCC + 5 V) | Lacks rail-exceeding input capability - unsuitable for high-side sensing or reverse-battery scenarios | Choose TLV7012DRYR only when board space is critical and input signals remain within 0 V to VCC; TLV3402CDRG4 remains preferred for robustness and flexibility |
Compared with TLV3402IDGKR, TLV3402CDRG4 offers identical functionality at commercial temperature grade, reducing cost where ambient conditions permit; versus TLV7012DRYR, it trades slightly higher current for essential VCC+5 V input tolerance and proven industrial reliability.
Availability
TLV3402CDRG4 is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and handheld instruments requiring stable component supply with nanopower performance and industrial-grade packaging.
Supply support for TLV3402CDRG4 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, embedded processing, and connectivity technologies, with decades of expertise in precision signal conditioning and low-power design.
The TLV340x family was engineered specifically for ultra-low-power threshold detection in battery-operated systems, emphasizing sub-µA operation, extended input voltage range, and robustness in real-world deployment environments.
FAQ
What is the operating temperature range of the TLV3402CDRG4?
The TLV3402CDRG4 is a C-suffix device rated for 0°C to +70°C operation per its official specifications. While many units function reliably beyond this range, design-critical applications requiring guaranteed performance at –40°C or +125°C should select the I-suffix variant TLV3402IDGKR. The TLV3402CDRG4 datasheet confirms its recommended operating conditions and thermal metrics for the commercial grade.
Does the TLV3402CDRG4 support inputs above the positive supply rail?
Yes - the TLV3402CDRG4 supports input voltages up to VCC + 5 V, as specified in its absolute maximum ratings and recommended operating conditions. This rail-exceeding capability enables direct high-side voltage sensing without level-shifting components. The TLV3402CDRG4 maintains integrity even when inputs reach 5 V above VCC, provided total input voltage does not exceed 20 V.
What pull-up resistor value is recommended for the TLV3402CDRG4 open-drain outputs?
A 1 MΩ pull-up resistor is used in all TLV3402CDRG4 electrical characterization tests and is explicitly recommended in the datasheet for meeting specified propagation delay and VOL performance. Lower values reduce rise time but increase static current; higher values save power but degrade speed and noise immunity. The TLV3402CDRG4's open-drain architecture requires this external component for proper logic-level translation.
Is the TLV3402CDRG4 pin-compatible with other TLV340x variants?
No - the TLV3402CDRG4 uses an 8-pin VSSOP (DGK) package with a specific pinout distinct from SOIC-8 (D) and PDIP-8 (P) variants. While functional pin roles match across packages (e.g., Pin 1 = 1OUT), physical layout and thermal characteristics differ. Migration between packages requires PCB redesign; however, the TLV3402CDRG4 shares identical electrical behavior with TLV3402IDGKR in the same DGK package.
How does reverse battery protection work in the TLV3402CDRG4?
The TLV3402CDRG4 incorporates internal protection circuitry that blocks excessive current flow when VCC is driven negative relative to GND, allowing safe operation with –18 V applied to the supply pin. This feature prevents damage during incorrect battery installation in field-deployed devices. The TLV3402CDRG4 datasheet specifies this capability in Absolute Maximum Ratings and highlights it as a key differentiator for portable equipment.
TLV3402CDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TLV3402CDRG4 FAQ
1.How can I place an order for TLV3402CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3402CDRG4 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 TLV3402CDRG4 reliable?
The price and inventory of TLV3402CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3402CDRG4 is usually 5 days.
3.What payment methods are accepted for TLV3402CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3402CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3402CDRG4?
TLV3402CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3402CDRG4 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 TLV3402CDRG4?
For technical support, including TLV3402CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3402CDRG4 requirements.
6.How does Aetrix verify that TLV3402CDRG4 is sourced from the original manufacturer or authorized distributors?
All TLV3402CDRG4 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 TLV3402CDRG4 meets industry standards.
7.What is the process for return or replacement of TLV3402CDRG4?
All TLV3402CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV3402CDRG4, 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 TLV3402CDRG4 part is unused and in its original packaging.
Return procedure for TLV3402CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV3402CDRG4 Tags
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LM2903DR
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LM339DR
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