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Texas Instruments TLV3691IDPFT
- Part No.:
- TLV3691IDPFT
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 6-XFDFN
- Datasheet:
-
TLV3691IDPFT.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 6X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,535
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Product details
Overview
TLV3691IDPFT from Texas Instruments is a nanopower rail-to-rail input comparator with push-pull output, operating from 0.9 V to 6.5 V supply and consuming only 75 nA typical quiescent current at 25°C. It features ±3 mV input offset voltage, 17 mV internal hysteresis, and 24 µs propagation delay at 6.5 V with 100 mV overdrive - enabling ultra-low-power voltage monitoring in battery-critical systems like portable medical devices and industrial sensors.
For engineers reviewing the TLV3691IDPFT datasheet, TLV3691IDPFT pinout, TLV3691IDPFT application, or TLV3691IDPFT equivalent, key selection considerations include its 1-mm × 1-mm X2SON-6 package, operation down to 0.9 V, rail-to-rail inputs extending 100 mV beyond supply rails, and guaranteed performance across –40°C to 125°C for industrial-grade reliability.
Technical Context
The TLV3691IDPFT implements a fully differential nanopower input stage with ESD-protected rail-to-rail common-mode range (V– – 0.1 V to V+ + 0.1 V), enabling direct sensing of signals outside supply boundaries without external level-shifting. Its push-pull output eliminates external pull-up resistors and supports drive into capacitive loads up to 15 pF while maintaining specified 24–45 µs propagation delay across supply and temperature.
Internal 17 mV hysteresis is fixed and non-adjustable, reducing susceptibility to noise in low-slew-rate applications such as battery voltage threshold detection. The device operates in a single functional mode with no enable/disable control, entering active operation whenever VCC exceeds 0.9 V and remaining functional up to 6.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.9 V to 6.5 V - enables direct operation from single-cell Li-ion (2.5–4.2 V), coin cell (1.5 V), or low-voltage industrial rails without regulation. |
| Quiescent Current | 75 nA typ / 200 nA max (–40°C to 125°C) - extends battery life in always-on monitoring circuits for >10 years on a CR2032. |
| Input Offset Voltage | ±3 mV max at 25°C - ensures accurate trip-point stability for ±1.25 V window detection with <0.1% error at 1.25 V reference. |
| Propagation Delay | 24 µs typ (6.5 V, 100 mV overdrive) - supports response to slow-moving DC thresholds like battery charge state or temperature ramp detection. |
| Input Common-Mode Range | V– – 0.1 V to V+ + 0.1 V - allows direct connection of sensor outputs exceeding supply rails, e.g., thermocouple or op-amp saturated outputs. |
| Output Type | Push-pull - drives high/low actively without external components; sinks 42 mA / sources 35 mA short-circuit current at 6.5 V. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive sensors, industrial PLC I/O modules, and outdoor IoT edge nodes. |
Pinout & Package
The TLV3691IDPFT is housed in a 1.00 mm × 1.00 mm, 0.37 mm height, 6-pin X2SON (DPF) package with wettable flank leads for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Noninverting input - accepts signals from V– – 0.1 V to V+ + 0.1 V; high-impedance (≤100 pA bias current) for minimal loading. |
| 2 | GND | Ground reference - must connect to low-impedance PCB ground plane; serves as return path for all internal currents. |
| 3 | IN− | Inverting input - differential partner to IN+; identical common-mode range and bias current specification. |
| 4 | OUT | Push-pull output - actively drives high (to VCC − 70 mV min at 0.9 V) or low (to GND + 35 mV max at 0.9 V); no external pull-up required. |
| 5 | NC | No internal connection - electrically isolated; must be left floating or tied to GND per layout best practice (no routing). |
| 6 | VCC | Positive supply - powers internal circuitry; requires local 100-nF ceramic bypass capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 75 nA typical supply current enables multi-year battery life in wake-on-threshold applications like smoke detector low-battery alerts. |
| Rail-to-rail input stage | Operates 100 mV beyond both supply rails - eliminates need for external level shifters when interfacing with overvoltage-capable sensors or op-amps. |
| Fixed internal hysteresis | 17 mV typical hysteresis suppresses chatter in noisy environments (e.g., motor-driven industrial sensors) without requiring external feedback resistors. |
| Push-pull output | Active high/low drive removes dependency on external pull-up resistors - reduces BOM count and avoids power loss in high-impedance pull-up configurations. |
| Wide temperature range | Specified from –40°C to 125°C - supports deployment in uncontrolled environments including automotive engine bays and factory-floor instrumentation. |
Applications
| Overvoltage and Undervoltage Detection | Window Comparators |
|---|---|
Use Scenario: Monitoring a 3.3-V system bus for brown-out or surge conditions in a portable diagnostic instrument. IC Role / Device Role / Timing Role: Comparator detecting when bus voltage falls below 2.97 V (–10%) or rises above 3.63 V (+10%), generating fault flags for MCU shutdown. Use Value: Enables fail-safe power management using only 75 nA quiescent current - preserving battery capacity during standby while ensuring reliable fault capture. | Use Scenario: Validating that a lithium-ion battery voltage remains within 3.0 V–4.2 V safe operating window in a wearable health monitor. IC Role / Device Role / Timing Role: Dual-comparator configuration (with second TLV3691IDPFT) generating logic-high "in-window" signal only when voltage is between thresholds. Use Value: Delivers precise, low-drift window detection with integrated hysteresis - eliminating external resistor networks and reducing PCB area by >30% vs discrete solutions. |
| Overcurrent Detection | Zero-Crossing Detection |
Use Scenario: Sensing load current in a battery-powered solenoid driver by measuring voltage drop across a 100-mΩ sense resistor. IC Role / Device Role / Timing Role: High-side current comparator triggering cutoff when sensed voltage exceeds 100 mV (i.e., 1 A load), protecting against thermal runaway. Use Value: Operates accurately at 0.9 V supply - allowing direct interface with low-voltage microcontrollers without level translation, while maintaining <1 µA total system standby current. | Use Scenario: Synchronizing microcontroller ADC sampling to AC line zero-crossings in an energy metering module powered by harvested ambient energy. IC Role / Device Role / Timing Role: Detecting polarity reversal of transformer-coupled 12-V AC waveform to generate clean digital zero-crossing pulses. Use Value: Rail-to-rail input accepts full AC swing without clipping; 24 µs propagation delay ensures timing jitter <0.5% at 50 Hz - meeting IEC 62053 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3604IDBVR | Higher quiescent current (600 nA typ), faster response (1.5 µs), open-drain output requiring pull-up. | Better suited for higher-speed threshold detection where power budget allows >5× higher IQ. | Select TLV3604IDBVR only if propagation delay <2 µs is required and system can accommodate external pull-up and higher standby current. |
| MAX9021AUT+T | Wider supply range (1.6 V to 5.5 V), 1.2 µA IQ, SC70-5 package, no rail-to-rail input beyond rails. | Limited to ≥1.6 V supplies; cannot interface directly with sub-1.6 V sensors or coin-cell systems. | Choose MAX9021AUT+T for cost-sensitive consumer applications where 1.6 V minimum supply and SC70 footprint are acceptable trade-offs. |
Compared with TLV3691IDPFT, TLV3604IDBVR trades nanopower efficiency for speed and MAX9021AUT+T sacrifices rail-to-rail input extension and ultra-low IQ for broader vendor support and lower unit cost - making TLV3691IDPFT uniquely optimal for sub-1-V, battery-constrained industrial sensing.
Availability
TLV3691IDPFT is available at Aetrix Electronics and suitable for overvoltage detection, window comparator circuits, and zero-crossing detection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLV3691IDPFT 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 delivering analog and embedded processing solutions, with leadership in low-power signal chain and power management technologies.
The TLV3691IDPFT belongs to TI's nanopower comparator product line, designed specifically for ultra-low-energy sensing and monitoring in battery-powered and energy-harvesting systems where every nanoamp matters.
FAQ
What is the minimum operating voltage for the TLV3691IDPFT?
The TLV3691IDPFT has a specified minimum operating voltage of 0.9 V, enabling direct operation from single alkaline cells (1.5 V), lithium coin cells (3 V), or partially discharged Li-ion batteries. This 0.9-V capability is validated across –40°C to 125°C and supports true single-cell compatibility without voltage boosting - a critical advantage for space-constrained portable medical monitors where TLV3691IDPFT replaces higher-voltage comparators requiring LDOs.
Does the TLV3691IDPFT require external hysteresis components?
No, the TLV3691IDPFT integrates 17 mV typical internal hysteresis, eliminating the need for external positive-feedback resistors in most noise-immune threshold-detection applications. This simplifies design for battery-operated systems like smart thermostats, where TLV3691IDPFT delivers reliable switching without additional passives - reducing BOM count and PCB area while maintaining consistent hysteresis across temperature and supply voltage.
What package type is used for the TLV3691IDPFT?
The TLV3691IDPFT uses the 6-pin X2SON (DPF) package, measuring 1.00 mm × 1.00 mm with 0.37 mm height and wettable flank leads. This ultra-compact footprint provides superior thermal performance (RθJA = 252.4°C/W) versus SC70 alternatives and supports automated optical inspection - making TLV3691IDPFT ideal for high-density wearables and miniaturized industrial sensor nodes where board space is at a premium.
Can the TLV3691IDPFT inputs safely exceed the supply rails?
Yes, the TLV3691IDPFT input common-mode range extends 100 mV beyond both supply rails (V– – 0.1 V to V+ + 0.1 V), allowing direct connection to overvoltage-capable sources like op-amp outputs or thermocouples without clamping diodes or level shifters. This rail-exceeding capability is fully characterized and guaranteed - a key differentiator of TLV3691IDPFT in industrial sensor front-ends where signal integrity must be preserved across wide dynamic ranges.
What is the maximum guaranteed quiescent current for TLV3691IDPFT over temperature?
The TLV3691IDPFT guarantees a maximum quiescent current of 200 nA across the full operating temperature range of –40°C to 125°C. This spec is tested and assured per TI's production test flow - enabling designers to calculate worst-case battery lifetime for applications like remote environmental sensors, where TLV3691IDPFT sustains 10+ years of operation on a single CR2477 cell without compromising reliability.
TLV3691IDPFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-XFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 0.9V ~ 6.5V, ±0.45V ~ 3.25V
- :
- 3mV
- Voltage - Input Offset (Max):
- 100pA
- Current - Input Bias (Max):
- 42mA
- Current - Output (Typ):
- 150nA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 35µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 6-X2SON (1x1)
TLV3691IDPFT FAQ
1.How can I place an order for TLV3691IDPFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3691IDPFT 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 TLV3691IDPFT reliable?
The price and inventory of TLV3691IDPFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3691IDPFT is usually 5 days.
3.What payment methods are accepted for TLV3691IDPFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3691IDPFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3691IDPFT?
TLV3691IDPFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3691IDPFT 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 TLV3691IDPFT?
For technical support, including TLV3691IDPFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3691IDPFT requirements.
6.How does Aetrix verify that TLV3691IDPFT is sourced from the original manufacturer or authorized distributors?
All TLV3691IDPFT 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 TLV3691IDPFT meets industry standards.
7.What is the process for return or replacement of TLV3691IDPFT?
All TLV3691IDPFT units undergo pre-shipment inspection (PSI). If there is an issue with TLV3691IDPFT, 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 TLV3691IDPFT part is unused and in its original packaging.
Return procedure for TLV3691IDPFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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