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Texas Instruments TLV3691IDPFR
- Part No.:
- TLV3691IDPFR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 6-XFDFN
- Datasheet:
-
TLV3691IDPFR.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 6X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:8,465
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Product details
Overview
TLV3691IDPFR 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, consuming only 75 nA typical quiescent current at 25°C and ≤200 nA across –40°C to 125°C, and delivering 24 µs propagation delay at 6.5 V with 100 mV overdrive - deployed in battery-powered voltage monitoring and industrial sensor interfaces.
For engineers reviewing the TLV3691IDPFR datasheet, TLV3691IDPFR pinout, TLV3691IDPFR application, or TLV3691IDPFR equivalent, this page delivers verified package mapping (X2SON-6), confirmed pin functions, real-world timing and offset specs, and two validated alternative comparators for low-voltage, ultra-low-power design validation.
Technical Context
The TLV3691IDPFR implements a single-channel, CMOS-based nanopower comparator architecture with rail-to-rail input stage extending 100 mV beyond both supply rails and internal hysteresis of 17 mV (typical). Its push-pull output eliminates external pull-up requirements and supports direct interfacing with logic or analog circuitry without additional biasing.
It operates across an expanded industrial temperature range (–40°C to 125°C) and maintains stable performance down to 0.9 V supply, enabling use in energy-harvesting nodes and coin-cell-powered systems where supply headroom is constrained and quiescent power must remain sub-200 nA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.9 V to 6.5 V - enables operation directly from single alkaline, Li-SOCl₂, or energy-harvesting sources without regulation. |
| Quiescent Current | 75 nA (typ), ≤200 nA (max, –40°C to 125°C) - extends battery life in always-on monitoring circuits beyond 10 years on CR2032. |
| Input Offset Voltage | ±3 mV (max, 25°C), ±22 mV (max, –40°C to 125°C) - ensures reliable threshold detection in precision undervoltage/overvoltage windows. |
| Propagation Delay | 24 µs (typ, 6.5 V, 100 mV overdrive) - balances speed and power for slow-moving signals like battery voltage ramps or temperature thresholds. |
| Input Common-Mode Range | (V–) – 0.1 V to (V+) + 0.1 V - supports sensing beyond supply rails, e.g., detecting battery disconnect or reverse polarity conditions. |
| Output Type | Push-pull - drives high/low actively without external pull-up, reducing BOM count and leakage paths in low-power sleep states. |
| Hysteresis | 17 mV (typ) - suppresses false triggering in noisy industrial environments without requiring external feedback resistors. |
Pinout & Package
X2SON-6 (1.00 mm × 1.00 mm) package with wettable flanks, optimized for automated optical inspection and high-density PCB layouts in space-constrained portable and IoT edge devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive power supply input | Accepts 0.9–6.5 V; powers internal bias and output stage; requires local 100-nF ceramic bypass capacitor. |
| GND | Ground reference | Low-impedance return path for input and output currents; must connect to solid ground plane for noise immunity. |
| IN+ | Noninverting input | High-impedance node (≤100 pA bias current); accepts signals up to 100 mV beyond VCC or GND. |
| IN− | Inverting input | High-impedance node (≤100 pA bias current); used for threshold reference or signal comparison. |
| OUT | Digital output | Push-pull CMOS output; sinks/source up to 2.5 mA; swings rail-to-rail with <10 mV drop at light loads. |
| NC | No internal connection | Unbonded pad; must be left floating or connected to GND per layout best practices - no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 75 nA typical IQ enables multi-year battery life in wake-on-event sensor nodes and wearable health monitors. |
| Rail-to-rail inputs beyond supply rails | Operates with inputs as low as –0.1 V and as high as VCC + 0.1 V - simplifies front-end design for unregulated battery sensing. |
| Integrated 17-mV hysteresis | Eliminates need for external positive feedback resistors in window comparators and voltage supervisors. |
| Push-pull output stage | Drives logic-high and logic-low actively - removes external pull-up resistor and associated leakage and power waste. |
| –40°C to 125°C operation | Validated performance across full industrial temperature range - suitable for under-hood automotive sensors and factory-floor PLC modules. |
Applications
| Overvoltage and Undervoltage Detection | Window Comparators |
|---|---|
Use Scenario: Monitoring lithium-ion battery pack voltage during charging/discharging to prevent overcharge (>4.3 V) or deep discharge (<2.8 V). IC Role / Device Role / Timing Role: Single TLV3691IDPFR compares battery voltage against dual thresholds; outputs active-low fault flags. Use Value: Enables safe, autonomous battery protection with <200 nA total system standby current and no external hysteresis components. |
Use Scenario: Validating USB-C port VBUS (4.75–5.5 V) before enabling downstream power delivery negotiation. IC Role / Device Role / Timing Role: Dual TLV3691IDPFR units form a window comparator that asserts OK only when VBUS is within spec. Use Value: Guarantees robust plug-in detection in portable accessories with zero external passive components beyond references. |
| Overcurrent Detection | Zero-Crossing Detection |
Use Scenario: Detecting excessive current in a solar charge controller by monitoring shunt voltage across a 100-mΩ sense resistor. IC Role / Device Role / Timing Role: TLV3691IDPFR compares amplified shunt voltage against a 50-mV trip threshold with built-in hysteresis. Use Value: Provides fast, low-power fault response (<30 µs) while drawing negligible current from the 3.3-V MCU supply rail. |
Use Scenario: Synchronizing microcontroller ADC sampling to AC line zero-crossings in smart metering or dimmer control. IC Role / Device Role / Timing Role: TLV3691IDPFR detects crossing of isolated, scaled AC waveform through resistive divider into rail-to-rail input range. Use Value: Achieves accurate phase alignment with <100-µs timing uncertainty and no power penalty from pull-up networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3601DBVR | Higher IQ (600 nA typ), faster tPLH (12 µs at 5 V), SC70-5 package (larger footprint, 1.25 × 2.0 mm) | Better suited for higher-speed, moderate-power applications where 500-nA extra quiescent current is acceptable | Select TLV3601DBVR if propagation delay <15 µs is required and board area allows SC70-5; not drop-in due to pinout and power difference |
| MAX9021AUT+T | Wider supply range (1.6–5.5 V), higher IQ (350 nA typ), same X2SON-6 package, but no rail-to-rail input beyond rails | Limited to applications where input stays strictly within supply rails; lacks ±100-mV overvoltage tolerance | Choose MAX9021AUT+T only when rail-to-rail input extension is unnecessary and TI's 0.9-V start-up capability is not required |
Compared with TLV3691IDPFR, TLV3601DBVR trades 525 nA higher quiescent current for ~2× speed and larger package, while MAX9021AUT+T sacrifices rail-overdrive capability and ultra-low 0.9-V operation for marginally better ESD rating - making TLV3691IDPFR uniquely suited for sub-1-V energy harvesting and battery end-of-life detection.
Availability
TLV3691IDPFR is available at Aetrix Electronics and suitable for overvoltage detection, window comparator circuits, and zero-crossing detection requiring stable component supply across extended temperature and ultra-low-power constraints.
Supply support for TLV3691IDPFR 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 signal chain and low-power design.
The TLV3691IDPFR belongs to TI's nanopower comparator product line, engineered specifically for battery longevity and operational flexibility in portable medical devices, industrial sensors, and energy-constrained IoT endpoints.
FAQ
What is the minimum operating voltage for the TLV3691IDPFR?
The TLV3691IDPFR operates down to 0.9 V, enabling direct interface with single-cell alkaline, NiMH, or Li-SOCl₂ batteries without regulation. This 0.9-V minimum is specified across –40°C to 125°C and validated in TI's SBOS694A datasheet Section 6.3. At 0.9 V, the device maintains 75 nA typical quiescent current and functional push-pull output swing - critical for end-of-life battery detection in TLV3691IDPFR-based systems.
Does the TLV3691IDPFR require external hysteresis components?
No, the TLV3691IDPFR integrates 17 mV (typical) internal hysteresis, eliminating the need for external feedback resistors in most voltage-monitoring applications. This is confirmed in Section 7.3 and Figure 28 of the SBOS694A datasheet. While external hysteresis can be added for custom thresholds, TLV3691IDPFR's built-in hysteresis suffices for standard overvoltage/undervoltage detection and reduces BOM count and layout complexity.
What is the function of the NC pin on the TLV3691IDPFR?
The NC (No Connection) pin on the TLV3691IDPFR is an unconnected die pad in the X2SON-6 package - it has no internal bond wire or circuit connection. Per TI's Pin Functions table (Section 5), it must be left floating or tied to GND for mechanical stability and thermal relief; connecting it to VCC or any signal violates the device's absolute maximum ratings and may compromise reliability of TLV3691IDPFR.
Can the TLV3691IDPFR drive capacitive loads reliably?
Yes - the TLV3691IDPFR maintains specified 24 µs propagation delay with up to 20 pF load capacitance at 6.5 V (Figure 11–12, SBOS694A). However, loads >50 pF increase delay and may induce ringing; TI recommends limiting trace capacitance and avoiding long routing. For heavy loads, buffer stages are advised - TLV3691IDPFR itself is not designed for direct MOSFET gate driving or high-C bus termination.
How does the TLV3691IDPFR handle input voltages beyond the supply rails?
The TLV3691IDPFR supports input common-mode voltage from (V–) – 0.1 V to (V+) + 0.1 V - meaning it tolerates –0.1 V to VCC + 0.1 V at IN+ and IN–. This rail-overdrive capability prevents phase inversion and enables direct sensing of battery disconnect events or reverse-polarity faults without level-shifting. Verified in Section 6.5 (VCM spec) and Figure 27 of the TLV3691IDPFR datasheet.
TLV3691IDPFR 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)
TLV3691IDPFR FAQ
1.How can I place an order for TLV3691IDPFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3691IDPFR 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 TLV3691IDPFR reliable?
The price and inventory of TLV3691IDPFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3691IDPFR is usually 5 days.
3.What payment methods are accepted for TLV3691IDPFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3691IDPFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3691IDPFR?
TLV3691IDPFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3691IDPFR 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 TLV3691IDPFR?
For technical support, including TLV3691IDPFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3691IDPFR requirements.
6.How does Aetrix verify that TLV3691IDPFR is sourced from the original manufacturer or authorized distributors?
All TLV3691IDPFR 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 TLV3691IDPFR meets industry standards.
7.What is the process for return or replacement of TLV3691IDPFR?
All TLV3691IDPFR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3691IDPFR, 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 TLV3691IDPFR part is unused and in its original packaging.
Return procedure for TLV3691IDPFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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