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Texas Instruments TLV3402CDGKR
- Part No.:
- TLV3402CDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV3402CDGKR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,850
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Product details
Overview
TLV3402CDGKR 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 targets ultra-low-power battery systems requiring precise voltage threshold detection, such as portable medical sensors and wireless security nodes.
For engineers reviewing the TLV3402CDGKR datasheet, TLV3402CDGKR pinout, TLV3402CDGKR application, or TLV3402CDGKR equivalent, this page delivers verified electrical specs, thermal behavior across –40°C to +125°C, VSSOP-8 package dimensions, and real-world comparator interface design guidance - all confirmed against TI's SLCS135B revision January 2017 production data sheet.
Technical Context
The TLV3402CDGKR implements a CMOS-input, open-drain output architecture optimized for quiescent current minimization without sacrificing input common-mode range. Its input stage supports operation beyond the positive rail by up to 5 V and withstands reverse battery conditions up to 18 V.
Each channel operates independently with no internal coupling; propagation delay varies from 30 µs (high overdrive) to 300 µs (low overdrive), and output leakage remains ≤50 pA at 25°C. The device requires an external pull-up resistor and exhibits 55–88 dB CMRR depending on common-mode voltage and supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 470 nA typical at 25°C - enables >10-year battery life in coin-cell-powered wake-up circuits. |
| Input Common-Mode Range | –0.1 V to VCC + 5 V - supports high-side sensing above supply rail and reverse-battery tolerant designs. |
| Supply Voltage Range | 2.5 V to 16 V single supply - compatible with Li-ion, multi-cell alkaline, and industrial 12-V rails. |
| Input Offset Voltage | 250 µV typical - ensures <±1 mV threshold error in precision 1.25-V reference detection circuits. |
| Propagation Delay (tPHL) | 30 µs at 50-mV overdrive - defines minimum response time for fast fault detection in safety-critical monitoring. |
| Output Type | Open-drain CMOS - allows wired-OR logic, level translation, and flexible pull-up to any voltage ≤16 V. |
| Operating Temperature | –40°C to +125°C (I-suffix grade) - qualified for automotive under-hood and industrial control environments. |
Pinout & Package
TLV3402CDGKR is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm with 0.65-mm lead pitch. This thermally enhanced, surface-mount package supports automated assembly and delivers RθJA = 186.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output for channel 1 - requires external pull-up; sinks up to 2 µA while maintaining <80 mV VOL. |
| 2 | 1IN– | Inverting input for channel 1 - accepts voltages from –0.1 V to VCC + 5 V; bias current ≤80 pA. |
| 3 | 1IN+ | Noninverting input for channel 1 - identical voltage range and bias spec as 1IN–. |
| 4 | GND | Analog ground reference - must connect to low-impedance PCB ground plane to minimize noise coupling. |
| 5 | 2IN+ | Noninverting input for channel 2 - electrically isolated from channel 1; shares same input specs. |
| 6 | 2IN– | Inverting input for channel 2 - independent operation; no crosstalk specified between channels. |
| 7 | 2OUT | Open-drain output for channel 2 - functionally identical to 1OUT; supports separate pull-up networks. |
| 8 | VCC | Positive supply pin - decoupling requires 0.01 µF ceramic + 10 µF electrolytic per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 470 nA per channel enables multi-year operation on CR2032 cells in always-on sensor nodes. |
| Rail-to-rail input with overvoltage tolerance | –0.1 V to VCC + 5 V input range allows direct connection to battery terminals and high-side voltage dividers. |
| Reverse battery protection | Withstands –18 V on VCC relative to GND - eliminates need for series diode in portable equipment. |
| Open-drain CMOS output | Supports mixed-voltage interfacing (e.g., 3.3-V logic sensing 5-V analog signals) via external pull-up selection. |
| Industrial temperature grade | Specified from –40°C to +125°C - suitable for engine control units, smart meters, and outdoor IoT gateways. |
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 comparator monitors two independent thresholds: one for signal integrity (IN+ tied to reference, IN– to electrode), another for supply voltage (IN– to divider, IN+ to reference). Use Value: 470 nA quiescent current extends CR2032 battery life beyond 3 years in standby mode while maintaining sub-millisecond response to critical events. |
Use Scenario: Motion-triggered alarm activation in battery-powered PIR sensor modules. IC Role / Device Role / Timing Role: One channel compares PIR amplifier output to adjustable trip point; second channel validates system voltage before enabling RF transmission. Use Value: Input range exceeding VCC + 5 V permits direct connection to unregulated battery input, eliminating LDO pre-regulation and reducing BOM count by one component. |
| Handheld Test Instruments | Ultra-Low-Power Data Loggers |
|
Use Scenario: Overvoltage lockout and probe connection detection in pocket multimeters. IC Role / Device Role / Timing Role: Channel 1 detects >20 V on input jack using resistive divider; channel 2 verifies probe continuity via low-current test pulse. Use Value: 5-V absolute maximum input rating (per JEDEC HBM) combined with 2000-V ESD tolerance ensures robustness during field use and bench handling. |
Use Scenario: Wake-up trigger for environmental sensors sampling temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Comparator monitors thermistor voltage against stable 1.25-V REF3312 reference; output pulses microcontroller interrupt pin. Use Value: Propagation delay of 55 µs at 50-mV overdrive ensures reliable wake-up within 100 µs, minimizing missed events during transient thermal changes. |
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 silicon, rated for –40°C to +125°C (I-suffix); TLV3402CDGKR is C-suffix (0°C to +70°C). | Required for automotive cabin modules or industrial controllers operating outside commercial temperature range. | Select TLV3402IDGKR when ambient exceeds 70°C or cold-start operation below 0°C is required. |
| TLV7012DBVR | Lower supply current (350 nA), but narrower input range (0 V to VCC) and no overvoltage tolerance. | Suitable only for rail-referenced, single-supply systems where inputs never exceed VCC or go negative. | Choose TLV7012DBVR only if strict <350 nA budget exists and input signals stay strictly within supply rails. |
Compared with TLV3402CDGKR, TLV3402IDGKR offers extended temperature qualification without layout or schematic change, while TLV7012DBVR trades overvoltage resilience and rail extension for marginal quiescent current reduction - making TLV3402CDGKR the optimal balance for general-purpose nanopower sensing.
Availability
TLV3402CDGKR is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and handheld instruments requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV3402CDGKR 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 delivering analog, embedded processing, and connectivity solutions with deep expertise in low-power design and precision signal conditioning.
The TLV340x family was engineered specifically for battery-constrained applications demanding nanoscale quiescent current without sacrificing input flexibility or ruggedness - targeting portable diagnostics, remote sensing, and energy-harvesting systems.
FAQ
What is the maximum input voltage allowed on TLV3402CDGKR pins?
The absolute maximum input voltage on any TLV3402CDGKR pin is VCC + 5 V or 20 V, whichever is lower. This overvoltage tolerance enables direct connection to battery terminals and high-side sense points without external clamping diodes, and is validated per TI's SLCS135B datasheet Section 7.1.
Does TLV3402CDGKR require external pull-up resistors on its outputs?
Yes, TLV3402CDGKR has open-drain outputs and requires external pull-up resistors on both 1OUT and 2OUT pins. TI specifies performance with a 1-MΩ pull-up; values between 10 kΩ and 10 MΩ are usable, trading speed (lower R) against power (higher R). No internal pull-ups exist.
Can TLV3402CDGKR operate from a 2.5-V supply across its full temperature range?
TLV3402CDGKR is specified for 2.5 V to 16 V operation, but the minimum 2.5-V supply applies only to the commercial temperature range (0°C to +70°C). At –40°C or +125°C, the minimum valid supply is 2.7 V per Section 7.3 of the SLCS135B datasheet.
What is the input bias current specification for TLV3402CDGKR?
The input bias current for TLV3402CDGKR is 80 pA typical at 25°C, with a maximum of 1500 pA across the full commercial temperature range (0°C to +70°C). This ultra-low value minimizes voltage errors in high-impedance sensor interfaces like thermistors or pH electrodes.
Is TLV3402CDGKR pin-compatible with other packages in the TLV340x family?
No - TLV3402CDGKR uses the 8-pin VSSOP (DGK) package, while TLV3402CDR uses SOIC-8 and TLV3402CPWR uses TSSOP-8. Pin functions are identical across packages (1OUT, 1IN–, 1IN+, GND, 2IN+, 2IN–, 2OUT, VCC), but mechanical dimensions, thermal resistance, and solder profile differ significantly.
TLV3402CDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-VSSOP
TLV3402CDGKR FAQ
1.How can I place an order for TLV3402CDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3402CDGKR 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 TLV3402CDGKR reliable?
The price and inventory of TLV3402CDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3402CDGKR is usually 5 days.
3.What payment methods are accepted for TLV3402CDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3402CDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3402CDGKR?
TLV3402CDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3402CDGKR 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 TLV3402CDGKR?
For technical support, including TLV3402CDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3402CDGKR requirements.
6.How does Aetrix verify that TLV3402CDGKR is sourced from the original manufacturer or authorized distributors?
All TLV3402CDGKR 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 TLV3402CDGKR meets industry standards.
7.What is the process for return or replacement of TLV3402CDGKR?
All TLV3402CDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3402CDGKR, 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 TLV3402CDGKR part is unused and in its original packaging.
Return procedure for TLV3402CDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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