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Texas Instruments TLV7044QPWRQ1
- Part No.:
- TLV7044QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV7044QPWRQ1.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:14,607
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Product details
Overview
TLV7044QPWRQ1 from Texas Instruments is a quad-channel, automotive-grade, open-drain nanopower comparator with rail-to-rail inputs, 315 nA quiescent current per channel, 3 µs propagation delay, and internal 6.5 mV hysteresis - designed for precision voltage monitoring in infotainment and telematics systems.
For engineers reviewing the TLV7044QPWRQ1 datasheet, TLV7044QPWRQ1 pinout, TLV7044QPWRQ1 application, or TLV7044QPWRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (–40°C to 125°C), open-drain output compatibility with external pull-up networks, low-voltage operation down to 1.6 V, and functional safety documentation support for ISO 26262 ASIL-B system integration.
Technical Context
The TLV7044QPWRQ1 implements a rail-to-rail input stage capable of accepting signals up to 100 mV above VCC and down to VEE, with no phase reversal under overdrive. Its internal power-on-reset (POR) forces the output into high-impedance state during supply ramp-up until VCC ≥ 1.6 V.
Each of the four independent comparators features 2 pA typical input bias current, ±0.1 mV min/±8 mV max input offset voltage, and 73 dB common-mode rejection ratio - enabling stable operation in noisy automotive environments where slow-moving analog signals must be converted to clean digital logic levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 6.5 V - supports direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers and sensors without level-shifting. |
| Quiescent Current / Channel | 315 nA at 1.8 V - enables multi-year battery life in always-on vehicle subsystems like eCall or door module wake-up circuits. |
| Propagation Delay | 3 µs at 100 mV overdrive - provides fast fault detection while maintaining ultra-low power consumption. |
| Input Offset Voltage | ±0.1 mV (min), ±8 mV (max) - ensures accurate threshold detection across temperature and supply variations. |
| Hysteresis | 6.5 mV (typical) - suppresses noise-induced chatter on slow-rising inputs in harsh EMI environments. |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and dashboard-mounted applications. |
| Output Type | Open-drain - allows wired-OR logic, flexible voltage-level translation via external pull-up, and compatibility with I²C-style bus architectures. |
Pinout & Package
TSSOP-14 package (4.40 mm × 5.00 mm), surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A/B/C/D | Open-drain outputs - require external pull-up resistors; sink current only; support shared-bus signaling. |
| 2, 6, 9, 13 | –IN A/B/C/D | Inverting inputs - accept rail-to-rail common-mode range (VEE to VCC + 0.1 V). |
| 3, 5, 10, 12 | +IN A/B/C/D | Noninverting inputs - identical voltage range and fault-tolerant behavior as inverting inputs. |
| 4 | VCC | Positive supply - powers all four comparators; minimum 1.6 V required for POR release. |
| 11 | VEE | Negative supply or ground - defines lower reference; supports single-supply operation when tied to GND. |
| - | NC | No internal connection - pins not bonded; electrically isolated and must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Accepts inputs from VEE to VCC + 100 mV - eliminates need for external clamping or attenuation in wide-dynamic-range sensing. |
| Internal hysteresis | 6.5 mV typical - prevents oscillation on noisy or slowly varying signals without external resistor networks. |
| Power-on-reset (POR) | Forces high-impedance output until VCC ≥ 1.6 V - guarantees known startup state and avoids spurious logic transitions during power sequencing. |
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C ambient - meets automotive reliability and lifetime requirements for front-end electronics. |
| Functional safety documentation | Available for TLV70x1-Q1/TLV70x2-Q1 variants - supports FMEDA analysis and ASIL-B system-level safety case development. |
Applications
| Telematics eCall Monitoring | Automotive Head Unit Power Sequencing |
|---|---|
Use Scenario: Detecting crash-triggered voltage drops or CAN bus activity to initiate emergency call handshaking. IC Role / Device Role / Timing Role: Quad comparator monitors multiple sensor thresholds (battery, accelerometer, GPS lock) simultaneously with independent hysteresis. Use Value: 315 nA/channel quiescent current enables always-on readiness; open-drain outputs allow OR-ing of fault flags onto a single interrupt line. | Use Scenario: Controlling sequential power-up of display, audio DSP, and Bluetooth modules based on supply rail stability. IC Role / Device Role / Timing Role: Four independent comparators verify VDD_3V3, VDD_1V8, VDD_IO, and VDD_PLL rails before releasing reset signals. Use Value: Internal 6.5 mV hysteresis eliminates false triggering from ripple; rail-to-rail inputs tolerate undershoot/overshoot during transient conditions. |
| Instrument Cluster Warning Indicators | On-Board Charger (OBC) Fault Detection |
Use Scenario: Converting analog gauge sensor outputs (fuel level, coolant temp) into discrete warning logic for LED drivers. IC Role / Device Role / Timing Role: Comparator channels compare sensor voltages against fixed reference thresholds with built-in noise immunity. Use Value: 3 µs propagation delay ensures timely response to critical warnings; AEC-Q100 qualification ensures long-term reliability in high-temperature dashboards. | Use Scenario: Monitoring isolation barrier status, DC-link voltage imbalance, and thermal shutdown signals in bidirectional OBC designs. IC Role / Device Role / Timing Role: Open-drain outputs interface directly with optocoupler inputs or microcontroller GPIOs configured as active-low interrupts. Use Value: Fault-tolerant inputs withstand 7 V even with VCC unpowered - protects against backfeed during maintenance or partial system failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7044PWR | Industrial-grade (non-AEC-Q100); same electrical specs and pinout. | Lacks automotive qualification, functional safety docs, and extended temperature validation. | Select for cost-sensitive non-automotive designs where Grade 1 qualification is unnecessary. |
| LMV7235QDQFRQ1 | Higher quiescent current (1.1 µA), faster propagation (170 ns), push-pull output, dual-channel only. | Better speed for real-time control loops; incompatible output architecture requires redesign of pull-up network. | Choose when sub-microsecond response is mandatory and open-drain topology is not required. |
Compared with TLV7044QPWRQ1, TLV7044PWR offers identical performance at lower cost but lacks automotive qualification and safety documentation, while LMV7235QDQFRQ1 trades nanopower efficiency for speed and uses push-pull outputs - requiring layout and firmware changes for replacement.
Availability
TLV7044QPWRQ1 is available at Aetrix Electronics and suitable for telematics eCall, instrument cluster warning systems, and on-board charger fault detection requiring stable component supply across automotive production lifecycles.
Supply support for TLV7044QPWRQ1 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 automotive, industrial, and power management solutions.
The TLV704x-Q1 product line delivers nanopower, AEC-Q100-qualified comparators optimized for voltage monitoring and fault detection in space-constrained, battery-sensitive automotive subsystems.
FAQ
What is the maximum input voltage rating for TLV7044QPWRQ1 when VCC = 0 V?
The TLV7044QPWRQ1 supports input voltages up to 7 V even when VCC is unpowered, due to internal diode-clamped inputs referenced to VEE. This fault-tolerant design prevents damage during hot-plug events or backfeed conditions in automotive power domains, making TLV7044QPWRQ1 robust for use in systems with mixed-voltage domains or partial power-down states.
Does TLV7044QPWRQ1 include internal hysteresis, and what is its typical value?
Yes, TLV7044QPWRQ1 includes internal hysteresis with a typical value of 6.5 mV, confirmed across operating conditions in the official datasheet. This hysteresis is factory-trimmed and does not require external components, enabling reliable threshold detection on noisy or slowly varying signals - a key feature distinguishing TLV7044QPWRQ1 from basic comparators requiring external positive feedback networks.
How does the power-on-reset (POR) circuit behave in TLV7044QPWRQ1?
In TLV7044QPWRQ1, the POR circuit holds all four outputs in high-impedance state while VCC ramps up below 1.6 V, ensuring no spurious logic transitions occur during power sequencing. Once VCC reaches or exceeds 1.6 V, the POR releases and outputs reflect the instantaneous differential input state - a behavior specific to the TLV704x-Q1 open-drain variant, differing from the push-pull TLV703x-Q1 which pulls low during POR.
Can TLV7044QPWRQ1 operate from a single 1.8 V supply?
Yes, TLV7044QPWRQ1 operates from a single 1.8 V supply with VEE tied to ground. It maintains full rail-to-rail input capability (0 V to 1.9 V), 315 nA quiescent current per channel, and 3 µs propagation delay - making TLV7044QPWRQ1 ideal for low-voltage automotive subsystems such as body control modules and sensor hubs where energy efficiency and small form factor are critical.
Is TLV7044QPWRQ1 pin-compatible with any non-automotive equivalents?
Yes, TLV7044QPWRQ1 is pin-compatible with the industrial-grade TLV7044PWR in the same TSSOP-14 package. Both share identical pin functions, electrical specifications, and footprint - allowing drop-in substitution in non-automotive designs. However, TLV7044QPWRQ1 adds AEC-Q100 Grade 1 qualification, enhanced ESD robustness (HBM ±2 kV), and functional safety documentation not present in TLV7044PWR.
TLV7044QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 6.5V
- :
- 8mV
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 315nA
- Current - Quiescent (Max):
- 73dB CMRR, 77dB PSRR
- CMRR, PSRR (Typ):
- 3µs
- Propagation Delay (Max):
- 17mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
TLV7044QPWRQ1 FAQ
1.How can I place an order for TLV7044QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7044QPWRQ1 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 TLV7044QPWRQ1 reliable?
The price and inventory of TLV7044QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7044QPWRQ1 is usually 5 days.
3.What payment methods are accepted for TLV7044QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7044QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7044QPWRQ1?
TLV7044QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7044QPWRQ1 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 TLV7044QPWRQ1?
For technical support, including TLV7044QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7044QPWRQ1 requirements.
6.How does Aetrix verify that TLV7044QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV7044QPWRQ1 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 TLV7044QPWRQ1 meets industry standards.
7.What is the process for return or replacement of TLV7044QPWRQ1?
All TLV7044QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV7044QPWRQ1, 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 TLV7044QPWRQ1 part is unused and in its original packaging.
Return procedure for TLV7044QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV7044QPWRQ1 Tags
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LM2903DR
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