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Texas Instruments TLV3691IDCKR
- Part No.:
- TLV3691IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV3691IDCKR.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:84,182
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Product details
Overview
TLV3691IDCKR from Texas Instruments is a single-channel nanopower comparator with rail-to-rail inputs, push-pull output, 75 nA typical quiescent current (200 nA max over –40°C to 125°C), 0.9 V to 6.5 V supply range, and ±3 mV input offset voltage. It enables ultra-low-power voltage monitoring in space-constrained portable electronics and industrial sensor nodes.
For engineers reviewing the TLV3691IDCKR datasheet, TLV3691IDCKR pinout, TLV3691IDCKR application, or TLV3691IDCKR equivalent, key selection considerations include its 100-mV beyond-rail input common-mode range, 24 µs propagation delay at 6.5 V/100 mV overdrive, SC70-5 package footprint, and internal 17 mV hysteresis for noise immunity in battery-powered systems.
Technical Context
The TLV3691IDCKR implements a fully differential input stage with ESD-protected rail-to-rail operation extending 100 mV beyond both supply rails, eliminating phase inversion during overvoltage transients. Its push-pull output drives capacitive loads up to 15 pF without external pull-up, supporting direct interfacing with microcontroller GPIOs or logic gates.
Internal hysteresis of 17 mV (typical) is fixed and non-adjustable, providing inherent noise rejection without external feedback components. The device operates in a single functional mode-fully active when VCC ≥ 0.9 V-and exhibits no power-down or shutdown control pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.9 V to 6.5 V - supports single-cell Li-ion, coin-cell, and industrial 3.3/5 V rails without level-shifting. |
| Quiescent Current | 75 nA (typ), 200 nA (max, –40°C to 125°C) - enables >10-year battery life in always-on sensing applications. |
| Input Offset Voltage | ±3 mV (25°C), ±22 mV (–40°C to 125°C) - sets minimum detectable voltage difference in precision threshold detection. |
| Propagation Delay | 24 µs (tPLH/tPHL, 6.5 V, 100 mV overdrive) - determines real-time response speed for fast fault detection. |
| Input Common-Mode Range | (V–) – 0.1 V to (V+) + 0.1 V - allows direct sensing of signals below ground or above VCC, e.g., battery cell monitoring. |
| Output Type | Push-pull - eliminates need for external pull-up resistor, reducing BOM count and leakage paths in low-power designs. |
| Hysteresis | 17 mV (typ) - suppresses chatter on slow-moving or noisy input signals without external resistor network. |
Pinout & Package
TLV3691IDCKR is packaged in a 5-pin SC70 (DCK) package with 1.25 mm × 2.00 mm body size and 0.65 mm pitch. Pin 5 is NC (no internal connection) and must be left unconnected or grounded per layout best practice.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 5) | Positive power supply input | Accepts 0.9–6.5 V; requires local 100-nF ceramic bypass capacitor placed adjacent to pin. |
| IN+ (Pin 1) | Noninverting input | Differential input node; supports common-mode voltage up to 100 mV beyond VCC or below GND. |
| IN– (Pin 3) | Inverting input | Differential input node; same rail-to-rail common-mode capability as IN+. |
| OUT (Pin 4) | Push-pull output | Drives high (to VCC) or low (to GND); sinks/source up to 2.5 mA; compatible with 1.8 V/3.3 V logic. |
| GND (Pin 2) | Ground reference | Primary return path; must connect to low-impedance PCB ground plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 75 nA typical supply current enables multi-year operation on CR2032 coin cells in wake-up monitoring circuits. |
| Rail-to-rail input stage | Operates with inputs 100 mV beyond supply rails, allowing direct measurement of battery voltage or sensor outputs near ground/VCC. |
| Fixed internal hysteresis | 17 mV typical hysteresis prevents false triggering in electrically noisy environments like motor-driven industrial equipment. |
| Push-pull output architecture | Eliminates external pull-up resistors, reducing standby current, board area, and thermal drift in precision threshold applications. |
| Extended temperature range | Specified from –40°C to 125°C, enabling use in automotive under-hood sensors and industrial process controllers. |
Applications
| Overvoltage and Undervoltage Detection | Window Comparators |
|---|---|
|
Use Scenario: Monitoring lithium-ion battery pack voltage to trigger charge termination or deep-discharge protection. IC Role / Device Role / Timing Role: Comparator detecting when cell voltage exceeds 4.25 V (overvoltage) or falls below 2.8 V (undervoltage). Use Value: Prevents battery damage using only 75 nA quiescent current, enabling continuous monitoring during sleep modes. |
Use Scenario: Validating that system supply voltage remains within safe operating window (e.g., 3.0–3.6 V for MCU core). IC Role / Device Role / Timing Role: Dual-comparator configuration generating fault flag when input falls outside defined upper/lower thresholds. Use Value: Internal 17 mV hysteresis ensures stable flag assertion without external components, reducing design complexity. |
| Overcurrent Detection | Zero-Crossing Detection |
|
Use Scenario: Sensing current through shunt resistor in portable medical device power path to disable load during fault. IC Role / Device Role / Timing Role: High-side current sense comparator comparing amplified shunt voltage against programmable trip point. Use Value: 0.9 V minimum supply allows operation directly from low-voltage auxiliary rail, avoiding dedicated bias supply. |
Use Scenario: Detecting AC line zero-crossing in smart plug energy metering for synchronized switching. IC Role / Device Role / Timing Role: AC-coupled comparator converting sine wave into clean digital edge at each polarity transition. Use Value: Rail-to-rail inputs accept attenuated AC signal centered at mid-supply, while 24 µs delay ensures timing accuracy within ±10 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7011DBVR | Higher IQ (650 nA typ), wider offset (±4.5 mV), same SC70-5 package and 0.9–6 V supply. | Better speed (2.5 µs delay) but higher power; less suitable for multi-year battery life. | Select TLV7011DBVR only when faster response outweighs quiescent current penalty. |
| NCS2200SQ2T2G | Lower IQ (380 nA typ), open-drain output, 1.8–5.5 V supply, SOT-23-5 package. | Requires external pull-up; lacks rail-to-rail inputs and internal hysteresis. | Choose NCS2200SQ2T2G if open-drain interface is required and external hysteresis can be added. |
Compared with TLV3691IDCKR, TLV7011DBVR trades 8.7× higher quiescent current for 10× faster response, while NCS2200SQ2T2G sacrifices rail-to-rail input range and integrated hysteresis to achieve lower cost in non-battery-critical applications.
Availability
TLV3691IDCKR is available at Aetrix Electronics and suitable for overvoltage detection, window comparator circuits, and zero-crossing detection requiring stable component supply across industrial temperature ranges and long-life portable designs.
Supply support for TLV3691IDCKR 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 TLV3691IDCKR belongs to TI's nanopower comparator product line, engineered specifically for battery-operated and energy-harvesting systems where sub-100 nA quiescent current and rail-to-rail functionality are mandatory.
FAQ
What is the maximum supply voltage rating for TLV3691IDCKR?
The absolute maximum supply voltage for TLV3691IDCKR is 7 V, but the recommended operating range is strictly 0.9 V to 6.5 V. Operation above 6.5 V risks parametric degradation or permanent damage, and TI specifies all electrical characteristics only within the 0.9–6.5 V range. Exceeding 6.5 V voids guaranteed performance per SBOS694A.
Does TLV3691IDCKR have a shutdown pin or enable function?
No, TLV3691IDCKR does not include a shutdown or enable pin. It operates continuously whenever VCC is ≥ 0.9 V. Power gating must be implemented externally via series FET on the VCC rail. The device draws only 75 nA typical in active state, making external gating unnecessary in most ultra-low-power applications.
Can TLV3691IDCKR drive a 10-kΩ load directly?
Yes, TLV3691IDCKR can drive a 10-kΩ resistive load directly. Its push-pull output delivers VOH ≤ 20 mV below VCC and VOL ≤ 10 mV above GND at IO ≤ 100 µA (6.5 V supply), ensuring >99% rail utilization. For heavier loads (>2.5 mA), output swing degrades per the VOL/VOH specs in Section 6.5 of the datasheet.
Is the NC pin (Pin 5) on TLV3691IDCKR required to be left floating?
No - Pin 5 is labeled NC (no internal connection), but TI recommends connecting it to GND in PCB layout to improve thermal dissipation and reduce EMI susceptibility. Leaving it floating is acceptable electrically, but grounding aligns with TI's layout guidelines in Section 10 of SBOS694A and enhances robustness in noisy environments.
How does internal hysteresis affect threshold accuracy in TLV3691IDCKR?
TLV3691IDCKR's fixed 17 mV (typ) internal hysteresis creates a 34 mV total window between rising and falling input thresholds. This reduces effective resolution but prevents oscillation on slow or noisy signals. For precise threshold setting, designers must account for this hysteresis when selecting external resistor dividers - the actual trip points shift by ±8.5 mV around the nominal threshold voltage.
TLV3691IDCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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
- :
- SC-70-5
TLV3691IDCKR FAQ
1.How can I place an order for TLV3691IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3691IDCKR 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 TLV3691IDCKR reliable?
The price and inventory of TLV3691IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3691IDCKR is usually 5 days.
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TLV3691IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3691IDCKR 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 TLV3691IDCKR?
For technical support, including TLV3691IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3691IDCKR requirements.
6.How does Aetrix verify that TLV3691IDCKR is sourced from the original manufacturer or authorized distributors?
All TLV3691IDCKR 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 TLV3691IDCKR meets industry standards.
7.What is the process for return or replacement of TLV3691IDCKR?
All TLV3691IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3691IDCKR, 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 TLV3691IDCKR part is unused and in its original packaging.
Return procedure for TLV3691IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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