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Texas Instruments TLV3012AQDBVRQ1
- Part No.:
- TLV3012AQDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
TLV3012AQDBVRQ1.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
TLV3012AQDBVRQ1 from Texas Instruments is an automotive-grade, push-pull output comparator with integrated 1.242V voltage reference, 3.1μA maximum quiescent current (B-version), 6mV typical hysteresis, and operation from 1.65V to 5.5V supply. It serves as a precision voltage detection element in battery management systems and cluster instrumentation.
For engineers reviewing the TLV3012AQDBVRQ1 datasheet, TLV3012AQDBVRQ1 pinout, TLV3012AQDBVRQ1 application, or TLV3012AQDBVRQ1 equivalent, key selection considerations include its fail-safe inputs, power-on-reset behavior, rail-to-rail input range extending 200mV beyond rails, and guaranteed performance across –40°C to +125°C ambient temperature.
Technical Context
The TLV3012AQDBVRQ1 implements a rail-to-rail input comparator core with a dedicated push-pull output stage capable of sourcing and sinking up to 0.5mA, eliminating external pull-up resistors. Its integrated 1.242V series reference provides ±1.5% initial accuracy and 100ppm/°C max drift, delivered on a separate REF pin for use by external circuitry.
This device belongs to the B-version variant family, featuring fail-safe inputs tolerant up to 5.5V independent of V+, internal power-on-reset (1.9ms delay), and guaranteed functionality down to 1.65V supply - enabling robust operation during power sequencing and low-voltage battery conditions in automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - supports direct connection to Li-ion single-cell (2.7–4.2V) and 3.3V/5V automotive domains without regulation. |
| Quiescent Current | 3.1μA max at TA = –40°C to +125°C - enables multi-year operation in always-on battery monitoring nodes. |
| Reference Voltage | 1.242V ±1.5% - provides stable threshold for precise overvoltage/undervoltage detection without external reference IC. |
| Input Common-Mode Range | (V–) – 0.2V to (V+) + 0.2V - allows sensing signals beyond supply rails, e.g., detecting battery cell voltage above V+ in stacked configurations. |
| Propagation Delay | 2µs to 4µs (typical, 100mV overdrive) - ensures fast response to fault events such as sudden battery disconnect or short-circuit. |
| Hysteresis | 6mV typical - suppresses chatter on noisy sensor inputs like thermistor-based temperature monitoring without external feedback. |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and instrument cluster mounting locations. |
Pinout & Package
TLV3012AQDBVRQ1 is packaged in a 6-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, optimized for space-constrained automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT | Comparator output | Push-pull active driver - sinks and sources current; no external pull-up required; incompatible with wired-OR bus topologies. |
| V– | Negative supply | Ground or lowest system potential; all input/output voltages referenced to this node. |
| IN+ | Non-inverting input | High-impedance (10¹³Ω) node accepting signals from (V–) – 0.2V to (V+) + 0.2V; fail-safe up to 5.5V in B-version. |
| IN– | Inverting input | High-impedance (10¹³Ω) node with identical common-mode range and fail-safe capability as IN+. |
| REF | Reference output | Dedicated 1.242V source - stable with ≤10nF load; supplies up to 0.5mA for external ADC reference or divider networks. |
| V+ | Positive supply | Highest system potential; powers comparator core and reference; minimum 1.65V for full B-version functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe inputs | Inputs remain high-impedance and functional up to 5.5V even when V+ = 0V - eliminates power sequencing constraints in multi-rail systems. |
| Power-on-reset (POR) | 1.9ms output hold period during V+ ramp-up/down - ensures known output state and stable reference before decision-making begins. |
| Integrated 1.242V reference | ±1.5% accuracy and 100ppm/°C drift - replaces discrete reference ICs in compact BMS and sensor interface designs. |
| Rail-to-rail input with 200mV beyond rails | Enables direct sensing of signals exceeding supply, e.g., detecting 5V CAN transceiver status from a 3.3V domain. |
| Push-pull output | No external pull-up needed - reduces component count and board area; avoids leakage path in sleep modes. |
Applications
| Lane Departure Warning | Cluster Instrumentation |
|---|---|
Use Scenario: Detecting camera module power loss or signal integrity degradation in real time. IC Role / Device Role / Timing Role: Comparator monitors regulated 3.3V supply rail against 1.242V reference to assert fault flag within microseconds. Use Value: Fast 2µs propagation delay and fail-safe inputs ensure reliable detection even during partial power collapse or ESD transients. | Use Scenario: Validating backlight LED driver enable signal and detecting open-circuit faults in analog gauge drivers. IC Role / Device Role / Timing Role: TLV3012AQDBVRQ1 compares driver output voltage to internal reference to generate diagnostic interrupt. Use Value: Integrated reference eliminates calibration drift; 125°C rating ensures continuous operation behind dashboard glass. |
| Battery Management Systems | Toll Tag Power Monitoring |
Use Scenario: Monitoring individual Li-ion cell voltage during charge/discharge cycles to prevent overvoltage. IC Role / Device Role / Timing Role: Compares cell voltage (via resistor divider) to 1.242V reference; output triggers protection MOSFET gate control. Use Value: 1.65V minimum supply allows direct operation from depleted cell; 3.1μA IQ extends battery life in maintenance mode. | Use Scenario: Detecting RF energy harvesting output voltage threshold to enable secure crypto processor wake-up. IC Role / Device Role / Timing Role: TLV3012AQDBVRQ1 senses harvested voltage rising above 1.242V to initiate secure boot sequence. Use Value: POR ensures clean startup after intermittent energy capture; fail-safe inputs tolerate RF coupling noise on sense lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator-with-reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3012BQDBVRQ1 | Identical electrical specs and pinout; differs only in marking - "A" denotes earlier production lot, "B" denotes later revision with same qualification. | No functional difference; both meet AEC-Q100 Grade 1 and share identical datasheet SBOS551D. | Select TLV3012AQDBVRQ1 for traceability to documented production release; TLV3012BQDBVRQ1 offers same performance with updated wafer fab process. |
| TLV3012QDBVRQ1 | Omits B-version features: no fail-safe inputs, no POR, min supply 1.8V (not 1.65V), higher IQ (5μA max). | Suitable only where power sequencing is controlled and 1.65V operation not required - e.g., non-battery-backed modules. | Choose TLV3012AQDBVRQ1 when fail-safe inputs or sub-1.8V operation are mandatory; TLV3012QDBVRQ1 may reduce cost in less demanding environments. |
Compared with TLV3012BQDBVRQ1, TLV3012AQDBVRQ1 offers identical functionality and qualification; compared with TLV3012QDBVRQ1, it adds critical automotive robustness via fail-safe inputs, POR, and extended low-voltage operation - directly enabling safer, more autonomous power monitoring in safety-critical subsystems.
Availability
TLV3012AQDBVRQ1 is available at Aetrix Electronics and suitable for battery management systems, instrument clusters, and toll tag electronics requiring stable component supply across automotive production lifecycles.
Supply support for TLV3012AQDBVRQ1 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 electronics and high-reliability signal conditioning solutions.
The TLV3012AQDBVRQ1 belongs to TI's automotive-comparator product line, designed specifically for precision voltage monitoring in safety-critical vehicle subsystems where low power, wide temperature range, and robust power sequencing are mandatory.
FAQ
What is the minimum supply voltage required for TLV3012AQDBVRQ1 to operate with full B-version functionality?
The TLV3012AQDBVRQ1 requires a minimum supply voltage of 1.65V to guarantee operation of all B-version features - including power-on-reset, fail-safe inputs, and specified quiescent current. Below 1.65V, comparator output behavior becomes undefined and reference stability is not assured. This 1.65V threshold enables direct integration with partially discharged lithium batteries in automotive telematics modules.
Does TLV3012AQDBVRQ1 require an external pull-up resistor on its output?
No, TLV3012AQDBVRQ1 does not require an external pull-up resistor because it features a push-pull output stage capable of actively sourcing and sinking current. This eliminates standby current through pull-up resistors and simplifies PCB layout. However, connecting multiple TLV3012AQDBVRQ1 outputs together is prohibited due to risk of shoot-through current between devices.
How does the fail-safe input feature of TLV3012AQDBVRQ1 improve system reliability?
The fail-safe inputs of TLV3012AQDBVRQ1 maintain high impedance and correct logic interpretation even when V+ is unpowered or ramping, accepting input voltages up to 5.5V regardless of supply state. This prevents erroneous outputs during power-up sequences or brownout conditions in multi-supply automotive ECUs, eliminating need for complex power-ordering circuitry and reducing failure modes in ASIL-B compliant designs.
What is the accuracy and temperature drift of the integrated voltage reference in TLV3012AQDBVRQ1?
The integrated voltage reference in TLV3012AQDBVRQ1 has an initial accuracy of ±1.5% and a maximum temperature drift of 100ppm/°C across –40°C to +125°C. Measured reference voltage is 1.242V (typical), with distribution ranging from 1.223V to 1.260V. This performance enables direct use as a precision threshold without trimming in battery voltage monitors and sensor biasing circuits.
Can TLV3012AQDBVRQ1 be used to monitor signals outside its supply rail range?
Yes, TLV3012AQDBVRQ1 supports input common-mode voltage from (V–) – 0.2V to (V+) + 0.2V, allowing it to monitor signals 200mV beyond both supply rails. For example, with V+ = 3.3V and V– = 0V, inputs from –0.2V to +3.5V are valid. Combined with fail-safe inputs rated to 5.5V, this enables safe monitoring of higher-voltage domains (e.g., 5V CAN PHY status) without level-shifting circuitry.
TLV3012AQDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V
- :
- 6mV @ 5.5V
- Voltage - Input Offset (Max):
- 10pA @ 5.5V
- Current - Input Bias (Max):
- 0.5mA @ 5.5V
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 74dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 13.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- SOT-23-6
TLV3012AQDBVRQ1 FAQ
1.How can I place an order for TLV3012AQDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3012AQDBVRQ1 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 TLV3012AQDBVRQ1 reliable?
The price and inventory of TLV3012AQDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3012AQDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TLV3012AQDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3012AQDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3012AQDBVRQ1?
TLV3012AQDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3012AQDBVRQ1 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 TLV3012AQDBVRQ1?
For technical support, including TLV3012AQDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3012AQDBVRQ1 requirements.
6.How does Aetrix verify that TLV3012AQDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV3012AQDBVRQ1 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 TLV3012AQDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TLV3012AQDBVRQ1?
All TLV3012AQDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV3012AQDBVRQ1, 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 TLV3012AQDBVRQ1 part is unused and in its original packaging.
Return procedure for TLV3012AQDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV3012AQDBVRQ1 Tags
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