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Diodes Incorporated AZV331KTR-E1
- Part No.:
- AZV331KTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AZV331KTR-E1.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,217
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Product details
Overview
AZV331KTR-E1 from Diodes Incorporated is a single general-purpose low-voltage comparator operating from 2.5V to 5.5V, featuring 60µA typical supply current, 200mV typical output saturation voltage, and open-collector output-designed for battery-powered portable systems including PDAs, notebooks, and mobile communication devices.
For engineers reviewing the AZV331KTR-E1 datasheet, AZV331KTR-E1 pinout, AZV331KTR-E1 application, or AZV331KTR-E1 equivalent, key selection criteria include supply current efficiency at low voltage, input common-mode range extending to ground, propagation delay under 400ns at 100mV overdrive, and SC-70-5/SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The AZV331KTR-E1 implements a BiCMOS architecture with bipolar input and output stages to achieve low noise and stable operation across industrial temperature (−40°C to +85°C). Its open-collector output supports flexible interfacing with CMOS/TTL logic and enables wired-OR configurations in multi-comparator systems.
It delivers guaranteed performance across 2.5V–5.5V supply, with input offset voltage ≤7mV (typ), input bias current ≤250nA (typ), and propagation delays of 200ns (TPHL) / 300ns (TPLH) at 5V and 100mV overdrive-enabling reliable threshold detection in low-power sensor and power-management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V - supports direct connection to Li-ion battery rails and 3.3V/5V logic domains without level-shifting. |
| Supply Current | 60µA typical - enables multi-year operation in coin-cell–powered IoT sensors and wearables. |
| Input Offset Voltage | 7mV typical - ensures accurate voltage thresholding down to ~10mV resolution in precision monitoring circuits. |
| Output Saturation Voltage | 200mV typical at 1mA sink - minimizes voltage drop when driving pull-up resistors or logic inputs. |
| Propagation Delay | 200ns TPHL / 300ns TPLH at 100mV overdrive and 5V - suitable for sub-1MHz window comparators and oscillator timing. |
| Input Common-Mode Range | −0.1V to 4.2V at 5V supply - includes ground reference, enabling direct sensing of 0V-referenced signals like battery discharge curves. |
| Temperature Range | −40°C to +85°C - qualified for industrial and automotive cabin ambient environments. |
Pinout & Package
Available in SOT-23-5 package (3.0 × 1.7 mm footprint), with gull-wing leads optimized for automated reflow assembly and high-density routing.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Non-inverting input - accepts analog signals up to VCC − 1.2V; referenced to ground for single-supply operation. |
| 2 | IN− | Inverting input - used for fixed reference or feedback path in hysteresis configurations. |
| 3 | VEE | Ground terminal - must be connected to system GND; enables true ground-sensing capability. |
| 4 | VCC | Positive supply rail - decoupling capacitor (0.1µF) recommended within 2mm of this pin. |
| 5 | OUTPUT | Open-collector output - requires external pull-up resistor; compatible with 1.8V–5V logic families. |
Key Features
| Feature | Design Value |
|---|---|
| Low supply current | 60µA typical - reduces quiescent power in always-on monitoring circuits without sacrificing response speed. |
| Ground-sensing input stage | Input common-mode range extends to −0.1V - allows direct comparison of 0V-referenced sensor outputs (e.g., thermistor dividers). |
| Open-collector output | Supports wired-OR bus architectures and mixed-voltage interfacing - eliminates need for level translators in multi-rail systems. |
| BiCMOS process | Bipolar input + CMOS-compatible output - achieves <250nA input bias current while maintaining TTL/CMOS drive strength. |
Applications
| Notebook Power Sequencing | Portable Medical Sensor Interface |
|---|---|
|
Use Scenario: Monitoring battery voltage and system rail status during boot and sleep transitions. IC Role / Device Role / Timing Role: Comparator detecting VBAT thresholds to enable/disable PMIC sequencing signals. Use Value: 60µA supply current extends standby time; ground-sensing input enables direct battery-minus monitoring without offset amplification. |
Use Scenario: Converting analog biosensor outputs (e.g., pulse oximeter photodiode current) into digital alerts. IC Role / Device Role / Timing Role: Threshold detector triggering alarm logic when signal exceeds clinical safety limits. Use Value: 200mV output saturation ensures clean logic-low assertion into microcontroller GPIO; 200ns propagation delay supports real-time response. |
| Mobile Phone Charger Detection | IoT Environmental Monitor |
|
Use Scenario: Identifying USB vs. proprietary charger presence via D+/D− voltage signature analysis. IC Role / Device Role / Timing Role: Dual-threshold comparator generating charger ID flags for USB enumeration control. Use Value: Pin-for-pin compatibility with LMV331 simplifies legacy design migration; 5.5V max supply accommodates USB 2.0 VBUS tolerance. |
Use Scenario: Detecting humidity or temperature excursions beyond preset thresholds in battery-operated environmental nodes. IC Role / Device Role / Timing Role: Low-power wake-up trigger activating MCU only upon event detection. Use Value: 2.5V minimum supply enables operation directly from buck-boost regulators; SC-70-5 footprint saves >50% board area vs. SOT-23-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV331IDBVR | Higher 100µA supply current; identical pinout and open-collector output. | Limited to 2.7V–5.5V operation; less suitable for 2.5V battery start-up conditions. | Select when legacy TI design reuse is required and 2.5V operation is not needed. |
| TLV331DBVR | 35µA supply current; rail-to-rail input; push-pull output (no external pull-up required). | Requires redesign of output interface; incompatible with wired-OR bus topologies. | Select when lowest power is critical and output load is exclusively CMOS with defined VDD. |
Compared with LMV331IDBVR and TLV331DBVR, the AZV331KTR-E1 uniquely balances ultra-low supply current (60µA), 2.5V operation, and open-collector flexibility-making it optimal for cost-sensitive, space-constrained portable designs requiring ground-referenced sensing and multi-voltage interoperability.
Availability
AZV331KTR-E1 is available at Aetrix Electronics and suitable for notebook power management, portable medical sensor interfaces, mobile charger detection, and IoT environmental monitors requiring stable component supply across extended production lifecycles.
Supply support for AZV331KTR-E1 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The AZV331 belongs to Diodes' general-purpose analog comparator product line, engineered specifically for low-voltage, low-power portable electronics where supply current, ground-sensing capability, and small-footprint packaging are primary design constraints.
FAQ
Is AZV331KTR-E1 RoHS compliant and lead-free?
Yes, the "E1" suffix indicates full RoHS compliance and lead-free construction per Diodes Incorporated's Pb-free standard. The device meets JEDEC J-STD-020 moisture sensitivity level 1 and is qualified for standard reflow soldering profiles without special handling requirements.
Can AZV331KTR-E1 operate from a 2.5V lithium coin cell?
Yes, the AZV331KTR-E1 is fully specified down to 2.5V supply and draws only 60µA typical current, making it suitable for direct operation from CR2032 or BR2032 coin cells in low-duty-cycle sensor wake-up applications.
Does AZV331KTR-E1 require an external pull-up resistor on the output?
Yes - its open-collector output mandates an external pull-up resistor to VCC or another logic rail. Typical values range from 2.2kΩ to 10kΩ depending on rise time and load capacitance; no internal pull-up is present.
What is the maximum sink current capability of AZV331KTR-E1?
The AZV331KTR-E1 guarantees 10mA sink current at 5V supply with VO ≤ 1.5V, and 5mA at 2.7V supply. For robust long-term reliability, continuous operation above 8mA is not recommended without thermal derating verification.
AZV331KTR-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 84mA @ 5V
- Current - Output (Typ):
- 120µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
AZV331KTR-E1 FAQ
1.How can I place an order for AZV331KTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZV331KTR-E1 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 AZV331KTR-E1 reliable?
The price and inventory of AZV331KTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZV331KTR-E1 is usually 5 days.
3.What payment methods are accepted for AZV331KTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZV331KTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZV331KTR-E1?
AZV331KTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZV331KTR-E1 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 AZV331KTR-E1?
For technical support, including AZV331KTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZV331KTR-E1 requirements.
6.How does Aetrix verify that AZV331KTR-E1 is sourced from the original manufacturer or authorized distributors?
All AZV331KTR-E1 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 AZV331KTR-E1 meets industry standards.
7.What is the process for return or replacement of AZV331KTR-E1?
All AZV331KTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AZV331KTR-E1, 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 AZV331KTR-E1 part is unused and in its original packaging.
Return procedure for AZV331KTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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