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Texas Instruments TLV1811DCKR
- Part No.:
- TLV1811DCKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV1811DCKR.pdf
- Description:
- SINGLE-CHANNEL MICROPOWER HIGH-V
- Quantity:
- Payment:
- Shipping:
Inventory:1,935
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Product details
Overview
TLV1811DCKR from Texas Instruments is a single-channel, 40V rail-to-rail input comparator with push-pull output, 5 μA quiescent current per channel, 420 ns typical propagation delay at 12 V, and Power-On Reset (POR) for deterministic startup in motor drive voltage monitoring circuits.
For engineers reviewing the TLV1811DCKR datasheet, TLV1811DCKR pinout, TLV1811DCKR application, or TLV1811DCKR equivalent, this page delivers verified electrical specs, SC-70-6 package mapping, functional safety documentation support, and direct alternatives for industrial sensing and power control designs.
Technical Context
The TLV1811DCKR implements a push-pull output stage capable of sourcing and sinking ≥4 mA while maintaining rail-to-rail input operation from (V−) − 0.2 V to (V+) + 0.2 V across 2.4–40 V supply range. Its internal POR circuit holds output low for ≤200 μs until V+ reaches ≥1.7 V.
It features 150 fA input bias current, 500 μV max input offset voltage (±4 mV over −40°C to +125°C), and 100 dB PSRR - enabling high-precision threshold detection in noisy factory automation signal chains without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4 V to 40 V - supports direct connection to 24 V industrial rails and 36–40 V automotive battery systems without regulation. |
| Quiescent Current | 5 μA per channel at 25°C - enables always-on voltage supervision in battery-backed PLC I/O modules. |
| Propagation Delay | 420 ns (low-to-high, 100 mV overdrive, 12 V, 50 pF) - provides fast response for overvoltage shutdown in motor gate drivers. |
| Input Offset Voltage | ±0.5 mV typical (±4 mV max over full temperature range) - ensures <10 mV total error in 12-bit ADC reference monitoring. |
| Input Common-Mode Range | (V−) − 0.2 V to (V+) + 0.2 V - allows direct sensing of signals crossing supply rails, e.g., current-sense amplifier outputs. |
| Output Type | Push-pull - eliminates external pull-up resistor, reduces board space, and drives MOSFET gates or LEDs directly. |
| ESD Rating | ±2000 V HBM - meets IEC 61000-4-2 Level 2 system-level ESD immunity requirements for industrial interfaces. |
Pinout & Package
TLV1811DCKR is packaged in SC-70-6 (DCK) with 1.25 mm × 2.00 mm body size and exposed pad not present. Pin 5 is V−, pin 6 is N/C (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− | Inverting input - accepts signals down to (V−) − 0.2 V; must avoid >0.2 V overdrive beyond rails to prevent ESD clamp conduction. |
| 2 | V− | Negative supply - connects to system ground or negative rail; all internal bias and ESD clamps reference this node. |
| 3 | IN+ | Non-inverting input - rail-to-rail capable; differential input voltage (IN+ − IN−) up to ±40 V allowed within common-mode limits. |
| 4 | OUT | Push-pull output - sources/sinks ≥4 mA; output swings within 250 mV of V− (low) and V+ (high) at 4 mA load. |
| 5 | V+ | Positive supply - supplies internal bias; POR activates below 1.7 V and releases after ≥200 μs once threshold crossed. |
| 6 | N/C | No internal connection - must be left floating; no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Operates with inputs from (V−) − 0.2 V to (V+) + 0.2 V - enables direct interface with unbuffered op-amp outputs and shunt-based current sensors. |
| Power-On Reset (POR) | Holds OUT low for ≤200 μs during V+ ramp-up - prevents false triggering in power-supply sequencing and brownout recovery. |
| Ultra-low quiescent current | 5 μA per channel - extends battery life in portable diagnostic tools and enables always-on fault detection in remote sensors. |
| 40 V absolute max rating | Withstands transient surges up to 42 V on supply and inputs - eliminates need for external TVS in 24 V industrial control inputs. |
| Functional safety documentation | TI provides FIT rate, failure mode analysis, and safety manual - supports ISO 26262 ASIL-B and IEC 61508 SIL-2 system certification. |
Applications
| Overvoltage Protection Circuit | Motor Phase Current Monitoring |
|---|---|
|
Use Scenario: Detects when DC bus voltage exceeds 32 V in a 24 V servo drive to trigger immediate gate shutdown. IC Role / Device Role / Timing Role: Comparator compares scaled bus voltage against precision reference; 420 ns delay ensures sub-microsecond response to transients. Use Value: Prevents IGBT destruction by cutting gate drive before energy dissipation exceeds safe SOA limits. |
Use Scenario: Monitors differential voltage across a 10 mΩ shunt in real time to detect phase current imbalance in a 3-phase BLDC motor. IC Role / Device Role / Timing Role: Rail-to-rail input captures full dynamic range of amplifier output; push-pull output drives optocoupler LED directly. Use Value: Eliminates external pull-up resistor and reduces BOM count while maintaining <1 μs fault latency. |
| Industrial PLC Analog Input Module | Automotive Battery Disconnect Monitor |
|
Use Scenario: Validates sensor supply integrity by comparing regulated 5 V rail against a bandgap reference in a modular I/O terminal block. IC Role / Device Role / Timing Role: TLV1811DCKR acts as supervisor with POR - output remains low until 5 V rail stabilizes, preventing spurious ADC reads. Use Value: Guarantees clean startup sequence and avoids erroneous fault flags during cold boot or hot-swap events. |
Use Scenario: Detects open-circuit condition in 12 V starter battery feed to vehicle infotainment head unit using high-side sense resistor. IC Role / Device Role / Timing Role: Push-pull output interfaces directly with microcontroller GPIO; 40 V rating tolerates load-dump transients up to 35 V. Use Value: Enables reliable battery presence detection without level-shifting or protection diodes, reducing component count by 3 parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1811DBVR | SOT-23-5 package (5-pin), standard pinout (V− on pin 2, V+ on pin 5); same electrical specs and POR behavior. | Requires PCB layout change due to different pin assignment and footprint; lacks N/C pin but retains identical functionality. | Select when legacy SOT-23-5 footprint is fixed and SC-70-6 rework is impractical. |
| LMV7219M5X/NOPB | 36 V max supply, 1.1 μs propagation delay, 80 μA IQ, open-drain output only - no push-pull option or POR. | Not suitable for deterministic startup or low-power always-on monitoring; requires external pull-up and reset coordination. | Choose only if higher speed is unnecessary and open-drain logic-OR capability is required over push-pull drive. |
Compared with TLV1811DBVR, TLV1811DCKR offers N/C pin flexibility and smaller SC-70 footprint but requires updated layout; versus LMV7219M5X/NOPB, it delivers 8× lower quiescent current, 2.6× faster response, and built-in POR - critical for robust industrial power sequencing.
Availability
TLV1811DCKR is available at Aetrix Electronics and suitable for motor drives, factory automation controllers, and appliance power supervisors requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV1811DCKR 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 power management ICs.
The TLV181x family was designed specifically for high-voltage, low-power industrial and automotive sensing - delivering rail-to-rail input, push-pull output, and POR in micro-packages for space-constrained control modules.
FAQ
What is the maximum supply voltage rating for TLV1811DCKR?
The TLV1811DCKR has an absolute maximum supply voltage (V+ − V−) of 42 V per the datasheet Absolute Maximum Ratings table. It operates continuously up to 40 V, making it suitable for 36 V battery systems and 24 V industrial rails with margin for transients. Exceeding 42 V risks permanent damage.
Does TLV1811DCKR include Power-On Reset, and how does it behave?
Yes, TLV1811DCKR includes an internal Power-On Reset (POR) circuit that holds the push-pull output low for ≤200 μs after V+ crosses 1.7 V during power-up. This ensures a known state during supply ramp-up and prevents false triggering in motor control or power supervision circuits.
Can TLV1811DCKR drive a MOSFET gate directly?
Yes, TLV1811DCKR's push-pull output can source and sink ≥4 mA, enabling direct drive of small-signal MOSFET gates (e.g., SiC or GaN drivers with ≤1 nF gate capacitance). Rise/fall times remain <15 ns with 50 pF load, supporting fast switching in protection circuits.
What is the input offset voltage specification for TLV1811DCKR over temperature?
TLV1811DCKR specifies ±0.5 mV typical input offset voltage at 25°C, with a guaranteed maximum of ±4 mV across −40°C to +125°C. Its ±1.2 μV/°C drift ensures minimal thermal-induced error in precision threshold detection over full industrial temperature range.
Is TLV1811DCKR pin-compatible with older TI comparators like TLV7211?
No - TLV1811DCKR uses the SC-70-6 "TLV72x1 6-pin type" pinout (V− on pin 2, N/C on pin 6), whereas TLV7211 uses SOT-23-5 with V− on pin 5. The TLV1811L variant matches TLV7211 pinout; TLV1811DCKR requires layout adaptation but offers improved specs and POR.
TLV1811DCKR 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, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.4V ~ 40V
- :
- 3mV @ 12V
- Voltage - Input Offset (Max):
- 0.15pA @ 12V
- Current - Input Bias (Max):
- 30mA @ 12V
- Current - Output (Typ):
- 7.5µA, 10µA
- Current - Quiescent (Max):
- 100dB PSRR
- CMRR, PSRR (Typ):
- 900ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
TLV1811DCKR FAQ
1.How can I place an order for TLV1811DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV1811DCKR 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 TLV1811DCKR reliable?
The price and inventory of TLV1811DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV1811DCKR is usually 5 days.
3.What payment methods are accepted for TLV1811DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV1811DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV1811DCKR?
TLV1811DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV1811DCKR 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 TLV1811DCKR?
For technical support, including TLV1811DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV1811DCKR requirements.
6.How does Aetrix verify that TLV1811DCKR is sourced from the original manufacturer or authorized distributors?
All TLV1811DCKR 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 TLV1811DCKR meets industry standards.
7.What is the process for return or replacement of TLV1811DCKR?
All TLV1811DCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV1811DCKR, 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 TLV1811DCKR part is unused and in its original packaging.
Return procedure for TLV1811DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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