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Texas Instruments TLV1812PWR
- Part No.:
- TLV1812PWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV1812PWR.pdf
- Description:
- DUAL MICROPOWER HIGH-VOLTAGE COM
- Quantity:
- Payment:
- Shipping:
Inventory:2,842
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Product details
Overview
TLV1812PWR from Texas Instruments is a dual-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 at 12 V, and Power-On Reset (POR) for deterministic startup in industrial motor drives and factory automation systems.
For engineers reviewing the TLV1812PWR datasheet, TLV1812PWR pinout, TLV1812PWR application, or TLV1812PWR equivalent, this page delivers verified electrical specs, dual-comparator functional context, package-validated thermal performance, and real-world design guidance for high-voltage, low-power sensing interfaces.
Technical Context
The TLV1812PWR implements two independent comparators with rail-to-rail inputs spanning (V−) − 0.2 V to (V+) + 0.2 V and a dedicated POR circuit that holds outputs low until supply reaches ≥2.4 V, ensuring glitch-free power-up behavior. Each channel consumes only 5 µA at 25°C and maintains operation across −40°C to +125°C.
Its push-pull output stage sinks and sources up to 4 mA while delivering VOL ≤ 250 mV and VOH ≤ 250 mV (vs. respective rails), enabling direct LED driving or MOSFET gate control without external pull-ups - unlike open-drain variants such as TLV1822.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4 V to 40 V - supports wide-input industrial and automotive supplies without external regulation. |
| Quiescent Current | 5 µA per channel - enables always-on monitoring in battery-backed or energy-sensitive systems. |
| Propagation Delay | 420 ns (low-to-high, 100 mV overdrive, CL = 50 pF) - balances speed and ultra-low power for real-time threshold detection. |
| Input Offset Voltage | ±0.5 mV (typ), ±4 mV (max, −40°C to +125°C) - ensures accurate voltage windowing in precision sensor interfaces. |
| Input Bias Current | 150 fA (typ) - minimizes error in high-impedance source applications like thermistor or photodiode monitoring. |
| Power-On Reset Threshold | 1.7 V - guarantees known output state during brown-out and cold-start conditions down to 2.4 V nominal supply. |
| Rail-to-Rail Input Range | (V−) − 0.2 V to (V+) + 0.2 V - allows direct interfacing with unbuffered sensors or DACs across full supply range. |
Pinout & Package
Packaged in an 8-pin TSSOP (PW), the TLV1812PWR measures 3.00 mm × 4.40 mm and features exposed thermal pad connected directly to V− for enhanced thermal dissipation in high-ambient environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Comparator 1 output | Push-pull stage capable of sourcing/sinking ≥4 mA - drives LEDs, logic inputs, or MOSFET gates directly. |
| IN1− | Inverting input, Channel 1 | High-impedance node (150 fA bias) - accepts signals down to (V−) − 0.2 V without phase reversal. |
| IN1+ | Non-inverting input, Channel 1 | Matches IN1− in common-mode range and offset - enables differential or single-ended threshold detection. |
| V− | Negative supply | Reference for all inputs/outputs; thermal pad must be soldered to PCB ground plane or V− net. |
| IN2+ | Non-inverting input, Channel 2 | Independent of Channel 1 - supports dual-threshold or window-comparator topologies. |
| IN2− | Inverting input, Channel 2 | Same rail-to-rail specification as IN1± - allows matched dual-channel sensing with <1 µV inter-channel offset drift. |
| OUT2 | Comparator 2 output | Functionally identical to OUT1 - enables redundant sensing or multi-level event triggering without external logic. |
| V+ | Positive supply | Accepts up to 40 V - eliminates need for LDO pre-regulation in 24 V/36 V industrial bus applications. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull output architecture | Eliminates external pull-up resistors and associated power loss - reduces BOM count and improves rise/fall time consistency. |
| Integrated Power-On Reset (POR) | Holds both outputs low for ≤200 µs during supply ramp-up/down - prevents false triggers in PLC I/O modules and motor enable circuits. |
| 40 V absolute maximum supply rating | Withstands transient surges up to 42 V - suitable for 24 V systems with ISO 7637-2 pulse 1/2/5a immunity requirements. |
| −40°C to +125°C operating range | Validated performance across full temperature span - enables deployment in under-hood automotive or enclosed industrial enclosures. |
| 2 kV HBM ESD rating | Robust input/output protection - reduces need for external TVS diodes in panel-mounted sensor interface designs. |
Applications
| Motor Overcurrent Detection | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Monitoring shunt voltage across motor phase legs to trigger shutdown before thermal damage occurs. IC Role / Device Role / Timing Role: Dual comparator compares sensed voltage against upper/lower thresholds to generate fault and warning flags. Use Value: 420 ns propagation delay enables sub-microsecond response to overcurrent events; 40 V supply tolerance accommodates 24 V bus transients. |
Use Scenario: Converting 4–20 mA current loop signals into digital on/off states for process control logic. IC Role / Device Role / Timing Role: TLV1812PWR acts as high-side and low-side threshold detector for analog input validation and range error signaling. Use Value: Rail-to-rail inputs accept 0–24 V common-mode range; 5 µA/channel quiescent current minimizes self-heating in densely packed I/O cards. |
| Appliance Door Interlock Sensing | Automotive Battery Disconnect Monitoring |
Use Scenario: Detecting magnetic reed switch closure in washing machine door latch to prevent spin cycle activation. IC Role / Device Role / Timing Role: Single comparator channel monitors switch state; second channel reserved for tamper detection or auxiliary sensor. Use Value: POR ensures safe default (locked) state during power cycling; 150 fA input bias avoids loading weak reed switch signals. |
Use Scenario: Supervising 12 V vehicle battery voltage to initiate controlled shutdown when voltage drops below 10.5 V. IC Role / Device Role / Timing Role: One channel detects undervoltage; second channel validates overvoltage (>16 V) for alternator regulation fault detection. Use Value: 2.4 V minimum supply allows operation during cranking; 40 V max rating covers load-dump transients up to 35 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1822PWR | Open-drain output, same supply range and quiescent current, but requires external pull-up and cannot source current. | Suitable where wired-OR logic or level translation to >40 V is needed; not usable for direct MOSFET gate drive. | Select TLV1822PWR only if system requires open-drain flexibility; otherwise TLV1812PWR offers lower component count and faster rise time. |
| LM393DR | Higher quiescent current (500 µA vs. 5 µA), no POR, 36 V max supply, slower propagation (~1.3 µs), no rail-to-rail inputs. | Limited to low-speed, non-critical 5 V or 12 V applications; unsuitable for battery-powered or high-precision sensing. | Choose LM393DR only for legacy cost-sensitive designs where micro-power and wide supply are not required. |
Compared with TLV1822PWR and LM393DR, the TLV1812PWR uniquely combines push-pull drive, POR, rail-to-rail inputs, and 5 µA quiescent current in a single 8-pin TSSOP - making it optimal for new industrial and automotive designs demanding reliability, low power, and deterministic startup.
Availability
TLV1812PWR is available at Aetrix Electronics and suitable for motor drives, factory automation and control, and appliance safety interlocks requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV1812PWR 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 for high-voltage, low-power sensing in industrial, automotive, and appliance applications - emphasizing robustness, deterministic startup, and minimal external components.
FAQ
What is the maximum supply voltage rating for TLV1812PWR?
The TLV1812PWR has an absolute maximum supply voltage (V+ to V−) of 42 V, with recommended operation up to 40 V. This allows reliable use in 24 V industrial systems subject to ISO 7637-2 load-dump transients. Exceeding 42 V risks permanent damage per the Absolute Maximum Ratings table in the official datasheet.
Does TLV1812PWR include Power-On Reset functionality?
Yes, TLV1812PWR integrates a Power-On Reset (POR) circuit that holds both outputs low for up to 200 µs after supply crosses 1.7 V, ensuring glitch-free startup during power-up or brown-out. This behavior is inherent to the TLV181x series and does not require external components.
Can TLV1812PWR drive a MOSFET gate directly?
Yes, TLV1812PWR's push-pull output can source and sink ≥4 mA, enabling direct drive of small-signal MOSFET gates (e.g., Si2302, DMN2004) without external buffers. Its 250 mV VOL/VOH ensures strong logic levels even at 40 V supply, reducing component count in motor control and power-switching circuits.
What is the input common-mode voltage range of TLV1812PWR?
The TLV1812PWR supports rail-to-rail inputs from (V−) − 0.2 V to (V+) + 0.2 V across its full −40°C to +125°C operating range. This allows direct connection to unbuffered sensors, DAC outputs, or shunt amplifiers without level-shifting - critical for accuracy in precision analog front-ends.
Is TLV1812PWR pin-compatible with other devices in the TLV181x family?
TLV1812PWR uses the standard 8-pin TSSOP (PW) pinout defined for TLV1812/TLV1822. It is not pin-compatible with single-channel (TLV1811) or quad-channel (TLV1814) variants, nor with alternate packages like SOIC or WSON - mechanical and thermal characteristics differ despite shared electrical behavior.
TLV1812PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- 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
- :
- 8-TSSOP
TLV1812PWR FAQ
1.How can I place an order for TLV1812PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV1812PWR 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 TLV1812PWR reliable?
The price and inventory of TLV1812PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV1812PWR is usually 5 days.
3.What payment methods are accepted for TLV1812PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV1812PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV1812PWR?
TLV1812PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV1812PWR 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 TLV1812PWR?
For technical support, including TLV1812PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV1812PWR requirements.
6.How does Aetrix verify that TLV1812PWR is sourced from the original manufacturer or authorized distributors?
All TLV1812PWR 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 TLV1812PWR meets industry standards.
7.What is the process for return or replacement of TLV1812PWR?
All TLV1812PWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV1812PWR, 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 TLV1812PWR part is unused and in its original packaging.
Return procedure for TLV1812PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV1812PWR Tags
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