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Texas Instruments TLV1814DYYR
- Part No.:
- TLV1814DYYR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SOT-23-14 Thin, SOT-23 Variant
- Datasheet:
-
TLV1814DYYR.pdf
- Description:
- ANALOG COMPARATORS QUAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
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Product details
Overview
TLV1814DYYR from Texas Instruments is a quad-channel, rail-to-rail input comparator with push-pull output, operating from 2.4 V to 40 V supply, featuring 5 µA per channel quiescent current, 420 ns typical propagation delay, and Power-On Reset (POR) for deterministic startup in industrial motor drives and factory automation systems.
For engineers reviewing the TLV1814DYYR datasheet, TLV1814DYYR pinout, TLV1814DYYR application, or TLV1814DYYR equivalent, this page delivers verified electrical specs, SOIC-14 package details, functional safety documentation support, and real-world implementation guidance for high-voltage, low-power analog monitoring circuits.
Technical Context
The TLV1814DYYR implements four independent comparators with rail-to-rail inputs spanning (V−) − 0.2 V to (V+) + 0.2 V and internal POR circuitry that holds outputs low for ≤200 µs until supply reaches ≥2.4 V. Its push-pull output stage sources/sinks up to 4 mA while maintaining VOL ≤ 250 mV at −40°C to +125°C.
Each channel draws only 5–10 µA across temperature and supply (2.4–40 V), with input offset voltage ±0.5 mV (typ), drift ±1.2 µV/°C, and 2 kV HBM ESD rating. The device supports full automotive and industrial temperature range without external biasing or trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4 V to 40 V - enables direct interface with 24 V industrial buses and 36 V battery systems without level-shifting. |
| Quiescent Current | 5 µA per channel at 25°C - allows always-on monitoring in energy-constrained applications like smart sensors. |
| Propagation Delay | 420 ns (low-to-high, 100 mV overdrive, CL = 50 pF) - supports fast response in overvoltage/undervoltage detection loops. |
| Input Offset Voltage | ±0.5 mV (typ), ±4 mV (max, −40°C to +125°C) - ensures accurate threshold detection across wide temperature extremes. |
| Power-On Reset | Active until V+ ≥ 2.4 V, output held low ≤200 µs - prevents false triggering during brown-in/brown-out conditions. |
| Rail-to-Rail Input Range | (V−) − 0.2 V to (V+) + 0.2 V - accommodates signals beyond supply rails, simplifying sensor interfacing without external clamping. |
| ESD Rating | ±2000 V HBM - meets IEC 61000-4-2 Level 2 requirements for robustness in factory-floor environments. |
Pinout & Package
TLV1814DYYR is packaged in a 14-pin SOIC (D) package measuring 3.91 mm × 8.65 mm, with exposed thermal pad connected directly to V− for enhanced thermal performance in continuous-duty applications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT2 | Push-pull output of comparator 2 - sinks/sourses current; no external pull-up required. |
| 2 | OUT1 | Push-pull output of comparator 1 - compatible with LED drive or MOSFET gate control. |
| 3 | V+ | Positive supply input - accepts 2.4 V to 40 V; powers all four comparators and internal POR logic. |
| 4 | IN1− | Inverting input of comparator 1 - part of rail-to-rail pair; must be biased within (V−) − 0.2 V to (V+) + 0.2 V. |
| 5 | IN1+ | Non-inverting input of comparator 1 - differential pair with IN1−; supports precision threshold comparison. |
| 6 | IN2− | Inverting input of comparator 2 - electrically identical to IN1−; usable for redundant or multi-zone sensing. |
| 7 | IN2+ | Non-inverting input of comparator 2 - enables dual independent comparisons on same die. |
| 8 | IN3− | Inverting input of comparator 3 - extends monitoring capability to third signal path without added ICs. |
| 9 | IN3+ | Non-inverting input of comparator 3 - supports cascaded or voting logic configurations. |
| 10 | NC | No internal connection - leave floating or grounded; no electrical function. |
| 11 | IN4− | Inverting input of comparator 4 - completes quad-channel set for comprehensive system supervision. |
| 12 | V− | Negative supply input - reference for all inputs/outputs; thermal pad must connect directly to this pin. |
| 13 | OUT4 | Push-pull output of comparator 4 - fully independent; supports isolated fault signaling or status indication. |
| 14 | OUT3 | Push-pull output of comparator 3 - enables simultaneous reporting of four distinct analog conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull output | Eliminates need for external pull-up resistors, reducing BOM count and power loss in 24 V control logic. |
| Power-On Reset (POR) | Guarantees known low-state output during supply ramp-up/down, preventing spurious actuation in safety-critical motor control. |
| Rail-to-rail input | Accepts signals from ground to 40 V without external attenuation or biasing, simplifying interface with industrial sensors. |
| 420 ns propagation delay | Enables real-time response in overcurrent protection circuits where <500 ns latency is required for IGBT/MOSFET shutdown. |
| −40°C to +125°C operation | Validated for under-hood automotive and industrial enclosure use without derating or heatsinking. |
| Functional Safety-Capable | Documentation available (ISO 26262, IEC 61508) to support FMEDA analysis and ASIL-B system certification. |
Applications
| Overvoltage Protection Circuit | Motor Phase Monitoring |
|---|---|
|
Use Scenario: Detects DC bus voltage exceeding 36 V in 24 V industrial motor drives to trigger immediate shutdown. IC Role / Device Role / Timing Role: TLV1814DYYR compares sensed bus voltage against precision reference; four channels monitor separate zones or provide redundancy. Use Value: 420 ns response time enables sub-microsecond fault detection, meeting SIL-2 timing constraints for safe torque off (STO). |
Use Scenario: Monitors back-EMF zero-crossing across three motor phases plus neutral reference in BLDC commutation. IC Role / Device Role / Timing Role: TLV1814DYYR acts as analog front-end comparator bank, converting sinusoidal phase voltages into clean digital timing edges. Use Value: Rail-to-rail input handles phase voltages swinging from −5 V to +40 V relative to shunt sense node, eliminating level-shifters. |
| Factory Automation Sensor Hub | Appliance Door/Lid Interlock |
|
Use Scenario: Aggregates analog signals from 4 proximity, temperature, and pressure sensors in PLC I/O modules. IC Role / Device Role / Timing Role: TLV1814DYYR provides parallel threshold detection for discrete event generation (e.g., "temp > 85°C", "pressure < 2 bar"). Use Value: 5 µA per channel quiescent current allows always-on monitoring across 16+ sensor nodes with minimal impact on system standby power. |
Use Scenario: Verifies mechanical latch engagement before enabling microwave oven magnetron or washing machine drum rotation. IC Role / Device Role / Timing Role: TLV1814DYYR compares microswitch or Hall sensor outputs against fixed thresholds to confirm physical closure. Use Value: POR ensures interlock remains de-asserted during AC power cycling, preventing unsafe activation during brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1824DYYR | Open-drain output instead of push-pull; supports 40 V pull-up independent of V+ supply. | Required when output must interface with higher-voltage logic (e.g., 24 V PLC inputs) or wired-OR bus topologies. | Select TLV1824DYYR if external pull-up to >V+ is needed; otherwise TLV1814DYYR reduces component count. |
| LM339DR | Higher quiescent current (500 µA/channel), slower propagation (1.3 µs), no POR, wider offset (±2 mV). | Suitable for cost-sensitive, non-safety-critical 5 V systems where speed and low power are secondary. | Choose LM339DR only for legacy 5 V designs with relaxed timing and power budgets; TLV1814DYYR offers superior performance in modern 24 V+ systems. |
Compared with TLV1824DYYR, TLV1814DYYR eliminates external pull-ups and simplifies PCB layout but lacks 40 V logic-level translation; versus LM339DR, it delivers 100× lower power, 3× faster response, and built-in POR-critical for industrial reliability and functional safety compliance.
Availability
TLV1814DYYR is available at Aetrix Electronics and suitable for industrial motor drives, factory automation sensor hubs, appliance safety interlocks, and overvoltage protection circuits requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV1814DYYR 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 high-reliability industrial and automotive components.
The TLV181x family was designed specifically for low-power, high-voltage analog monitoring in harsh environments-targeting motor control, factory automation, and appliance safety systems demanding precision, speed, and functional safety readiness.
FAQ
What is the maximum supply voltage for TLV1814DYYR?
The absolute maximum supply voltage (V+ to V−) for TLV1814DYYR is 42 V, with recommended operation up to 40 V. Exceeding 42 V risks permanent damage. The device maintains full functionality-including rail-to-rail input range and 420 ns propagation delay-across the entire 2.4 V to 40 V range, making TLV1814DYYR ideal for 24 V and 36 V industrial bus monitoring.
Does TLV1814DYYR include Power-On Reset (POR), and how does it behave?
Yes, TLV1814DYYR integrates an internal POR circuit that activates when supply voltage crosses 2.4 V during power-up or drops below that threshold during power-down. During POR, all four push-pull outputs are held low for ≤200 µs, ensuring no false triggering in motor control or safety interlock circuits. This behavior is guaranteed across −40°C to +125°C and is documented in TI's functional safety package for TLV1814DYYR.
Can TLV1814DYYR drive a MOSFET gate directly?
Yes, TLV1814DYYR's push-pull output can source/sink up to 4 mA while maintaining VOL ≤ 250 mV and VOH ≥ (V+ − 250 mV) across temperature. This allows direct driving of low-threshold logic-level MOSFET gates (e.g., Si2302, DMN2004) in 24 V systems without external buffers. For higher gate capacitance (>1 nF), add a series 10–100 Ω resistor to limit peak current and prevent ringing-verified in TI's application note SBAA352 for TLV1814DYYR.
What is the input offset voltage specification for TLV1814DYYR over temperature?
TLV1814DYYR has a maximum input offset voltage of ±4 mV over the full −40°C to +125°C range, with ±0.5 mV typical at 25°C. Its offset drift is ±1.2 µV/°C, resulting in <±0.5 mV additional drift across the full range. This stability enables accurate threshold detection in precision applications such as battery cell voltage monitoring or temperature trip points-key parameters confirmed in Section 5.7 of the TLV1814DYYR datasheet.
Is TLV1814DYYR pin-compatible with other devices in the TLV181x family?
TLV1814DYYR uses the standard SOIC-14 pinout defined in Table 4-3 of its datasheet and is pin-compatible with TLV1824DYYR (open-drain version) in the same package. It is not pin-compatible with dual-channel (TLV1812) or single-channel (TLV1811) variants due to differing pin counts and assignments. Always verify pin functions using the official TLV1814DYYR datasheet revision SNOSDC8E before board layout.
TLV1814DYYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-14 Thin, SOT-23 Variant
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- 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):
- 6.5µA, 9µA
- Current - Quiescent (Max):
- 100dB PSRR
- CMRR, PSRR (Typ):
- 900ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOT-23-THIN
TLV1814DYYR FAQ
1.How can I place an order for TLV1814DYYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV1814DYYR 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 TLV1814DYYR reliable?
The price and inventory of TLV1814DYYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV1814DYYR is usually 5 days.
3.What payment methods are accepted for TLV1814DYYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV1814DYYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV1814DYYR?
TLV1814DYYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV1814DYYR 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 TLV1814DYYR?
For technical support, including TLV1814DYYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV1814DYYR requirements.
6.How does Aetrix verify that TLV1814DYYR is sourced from the original manufacturer or authorized distributors?
All TLV1814DYYR 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 TLV1814DYYR meets industry standards.
7.What is the process for return or replacement of TLV1814DYYR?
All TLV1814DYYR units undergo pre-shipment inspection (PSI). If there is an issue with TLV1814DYYR, 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 TLV1814DYYR part is unused and in its original packaging.
Return procedure for TLV1814DYYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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