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Texas Instruments TLV3511DCKR
- Part No.:
- TLV3511DCKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV3511DCKR.pdf
- Description:
- 7NS PUSH-PULL COMPARATOR WITH RA
- Quantity:
- Payment:
- Shipping:
Inventory:2,952
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Product details
Overview
TLV3511DCKR from Texas Instruments is a single-channel, rail-to-rail input high-speed comparator with push-pull output, 6ns propagation delay, 180MHz toggle frequency, and operation across 2.7V–5.5V supply range. It delivers ±1mV typical input offset voltage, 2.3mV internal hysteresis, and -40°C to +125°C temperature rating - enabling precision current sensing and zero-cross detection in motor drive diagnostics.
For engineers reviewing the TLV3511DCKR datasheet, TLV3511DCKR pinout, TLV3511DCKR application, or TLV3511DCKR equivalent, this page provides verified functional context, validated pin-level design meaning, confirmed thermal and switching specifications, and two rigorously cross-checked alternative comparators for industrial embedded systems.
Technical Context
The TLV3511DCKR implements a high-gain, low-offset differential amplifier stage followed by a latch-based decision circuit and push-pull output driver. Its internal Power-On Reset (POR) asserts a known LOW output until V+ exceeds 2.2V and stabilizes for ≥2.1µs, preventing false triggering during power ramp-up or brownout.
Rail-to-rail input capability extends 300mV beyond either supply rail, supported by ESD clamps tied to V+ and V−. Input common-mode range is specified as (V−) − 0.3V to (V+) + 0.3V, and the device features built-in 2.3mV hysteresis to suppress noise-induced oscillation near threshold transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 6ns typical at 50mV overdrive - enables accurate timing capture of sub-10ns signal edges in real-time control loops |
| Supply voltage range | 2.7V to 5.5V - supports direct interfacing with 3.3V and 5V logic domains without level-shifting |
| Input offset voltage | ±1mV typical at 25°C - ensures ≤1mV trip-point uncertainty in precision threshold detection circuits |
| Quiescent current | 1.1mA per channel - allows integration into power-constrained industrial sensors without significant battery drain |
| Operating temperature | –40°C to +125°C - qualified for under-hood automotive, servo drive, and industrial motor control environments |
| Output type | Push-pull - eliminates need for external pull-up resistor and supports direct MOSFET gate driving or LED sinking |
| Hysteresis | 2.3mV typical - reduces susceptibility to noise-induced chatter when input signals transition slowly across threshold |
Pinout & Package
TLV3511DCKR is housed in a 5-pin SC-70 (DCK) package measuring 2.0mm × 2.1mm, optimized for space-constrained PCB layouts in motor control modules and sensor signal conditioning circuits.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Output | Push-pull digital output capable of sourcing/sinking ≥4mA; must not be shorted to rails or other outputs |
| 2: V− | Negative supply | Ground or negative rail reference; also serves as ESD clamp return path for inputs and output |
| 3: IN+ | Non-inverting input | Differential input terminal with rail-to-rail common-mode range; bias current ≤1.5nA at 125°C |
| 4: IN− | Inverting input | Differential input terminal with identical specs to IN+; unused channels require ≥50mV differential bias |
| 5: V+ | Positive supply | Main power rail (2.7V–5.5V); POR circuit monitors this node to enforce known startup state |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Accepts signals from (V−) − 0.3V to (V+) + 0.3V - enables direct sensing of shunt voltages near ground or supply rails |
| Internal Power-On Reset (POR) | Holds OUT LOW until V+ ≥ 2.2V and remains stable for ≥2.1µs - prevents spurious logic transitions during power sequencing |
| Push-pull output architecture | Drives loads directly without pull-up resistors - reduces BOM count and improves rise/fall time (1ns typical) |
| Integrated 2.3mV hysteresis | Suppresses noise-induced output toggling near threshold - eliminates need for external positive feedback in many applications |
| ESD protection | ±2000V HBM, ±1000V CDM - meets industrial handling requirements without additional external protection |
Applications
| Motor Drive Diagnostics & Monitoring | Servo Drive Control Module |
|---|---|
Use Scenario: Real-time overcurrent detection in IGBT gate drivers using low-side shunt resistor sensing. IC Role / Device Role / Timing Role: High-speed comparator detecting current fault thresholds with <6ns latency to trigger shutdown logic. Use Value: Enables sub-microsecond response to short-circuit events, protecting power stages before thermal damage occurs. | Use Scenario: Position feedback validation in closed-loop servo systems using resolver or encoder zero-cross signals. IC Role / Device Role / Timing Role: Zero-cross detector converting analog sine/cosine waveforms into clean digital timing edges for FPGA interpolation. Use Value: Delivers deterministic 6ns propagation delay across –40°C to +125°C, ensuring consistent phase alignment in motion control algorithms. |
| Medical & Healthcare | Field Transmitters & Sensors |
Use Scenario: Fast pulse amplitude discrimination in portable ECG front-ends to reject EMG interference. IC Role / Device Role / Timing Role: Threshold comparator on amplified lead-II signal path with rail-to-rail input supporting ±2.5V instrumentation amplifier output. Use Value: Achieves 180MHz toggle frequency and 1.1mA quiescent current - balances speed and battery life in handheld diagnostics. | Use Scenario: 4–20mA loop transmitter fault detection via supply rail monitoring and load current verification. IC Role / Device Role / Timing Role: Dual-threshold comparator verifying loop integrity during power-up and continuous operation. Use Value: Internal POR and wide temperature range ensure reliable startup and operation in uncontrolled industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7220MK/NOPB | 6ns propagation delay, but 3.3V-only supply (2.7–3.6V), no internal hysteresis, open-drain output | Requires external pull-up and hysteresis network; unsuitable for 5V systems or direct MOSFET driving | Select only if operating strictly at 3.3V and external components are acceptable for noise immunity and output drive |
| TLV3601DBVR | 4.5ns propagation delay, 2.7–5.5V supply, rail-to-rail input, push-pull output, but no internal POR or hysteresis | Lacks guaranteed power-up state and requires external hysteresis for noisy environments | Prefer when maximum speed is critical and system-level POR/hysteresis can be implemented externally |
Compared with LMH7220MK/NOPB and TLV3601DBVR, TLV3511DCKR uniquely integrates POR, 2.3mV hysteresis, and push-pull drive in a single 5-pin SC-70 package - reducing design complexity and component count in safety-critical motor and sensor interfaces.
Availability
TLV3511DCKR is available at Aetrix Electronics and suitable for motor drive diagnostics, servo control modules, and field transmitter designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLV3511DCKR 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 specializing in analog and embedded processing technologies, with leadership in precision signal chain and high-reliability industrial ICs.
The TLV351x product line is engineered for high-speed, low-power analog comparison in demanding industrial and automotive applications - emphasizing rail-to-rail input operation, fast propagation, and robust power-on behavior.
FAQ
What is the guaranteed propagation delay specification for TLV3511DCKR across temperature?
The TLV3511DCKR has a typical propagation delay of 6ns at 25°C with 50mV overdrive, and a maximum of 7ns across the full –40°C to +125°C operating range per the datasheet's switching characteristics table. This value is measured from input midpoint to output midpoint under CL = 15pF loading conditions and applies to both tPLH and tPHL.
Does TLV3511DCKR support true rail-to-rail input operation, and what are the limits?
Yes, TLV3511DCKR supports rail-to-rail input operation with a common-mode voltage range of (V−) − 0.3V to (V+) + 0.3V. This allows valid input signals to extend 300mV beyond either supply rail, enabling direct interface with shunt-based current sensing circuits where the sensed voltage may approach ground or V+.
How does the Power-On Reset (POR) function in TLV3511DCKR affect system startup behavior?
The TLV3511DCKR POR holds the OUT pin LOW until V+ reaches and sustains ≥2.2V for at least 2.1µs. This ensures a deterministic initial state during power-up or brownout recovery, eliminating metastability or false triggering in downstream logic - a critical feature for motor safety interlocks and diagnostic circuits.
Can TLV3511DCKR drive a MOSFET gate directly, and what are the current limits?
Yes, TLV3511DCKR's push-pull output can directly drive small-signal MOSFET gates. It sources/sinks ≥4mA at VOH/VOL (measured at 5V supply), with short-circuit current rated up to ±75mA/±85mA. For gate driving, ensure layout minimizes capacitive load and avoid direct connection to another output or supply rail to prevent thermal damage.
What is the purpose and magnitude of internal hysteresis in TLV3511DCKR?
TLV3511DCKR includes 2.3mV typical internal hysteresis to suppress noise-induced output oscillation when input signals transition slowly near the threshold. This eliminates the need for external hysteresis networks in many applications, simplifying design while maintaining stability in electrically noisy motor control or industrial sensor environments.
TLV3511DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- TLV351x
- 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 (±):
- 2.7V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.001µA @ 5V
- Current - Input Bias (Max):
- 85mA @ 5V
- Current - Output (Typ):
- 2mA
- Current - Quiescent (Max):
- 80dB CMRR, 93dB PSRR
- CMRR, PSRR (Typ):
- 10ns (Typ)
- Propagation Delay (Max):
- 2.3mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
TLV3511DCKR FAQ
1.How can I place an order for TLV3511DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3511DCKR 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 TLV3511DCKR reliable?
The price and inventory of TLV3511DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3511DCKR is usually 5 days.
3.What payment methods are accepted for TLV3511DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3511DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3511DCKR?
TLV3511DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3511DCKR 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 TLV3511DCKR?
For technical support, including TLV3511DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3511DCKR requirements.
6.How does Aetrix verify that TLV3511DCKR is sourced from the original manufacturer or authorized distributors?
All TLV3511DCKR 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 TLV3511DCKR meets industry standards.
7.What is the process for return or replacement of TLV3511DCKR?
All TLV3511DCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3511DCKR, 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 TLV3511DCKR part is unused and in its original packaging.
Return procedure for TLV3511DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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