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Analog Devices Inc./Maxim Integrated LMX339HAUD+
- Part No.:
- LMX339HAUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMX339HAUD+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,321
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Product details
Overview
LMX339HAUD+ from Maxim Integrated is a quad, open-drain, low-voltage comparator with internal 2mV hysteresis, designed for noise-immune threshold detection in automotive and battery-powered systems. It operates from 1.8V to 5.5V, supports -40°C to +125°C, draws 140–430µA total supply current (depending on VDD), and features rail-to-rail input range including ground.
For engineers reviewing the LMX339HAUD+ datasheet, LMX339HAUD+ pinout, LMX339HAUD+ application, or LMX339HAUD+ equivalent, this page delivers verified electrical specs, TSSOP-14 pin mapping, hysteresis-enabled design value, and automotive-grade thermal performance - all confirmed against Maxim's official LMX339H datasheet Rev 4 (May 2011).
Technical Context
The LMX339HAUD+ implements four independent comparators using submicron CMOS technology, eliminating phase reversal under overdriven inputs and enabling stable operation with slow-moving signals due to its fixed 2mV internal hysteresis. Its input common-mode range extends from -0.1V below VSS to within 0.7V of VDD, supporting ground-referenced sensing.
Each comparator output is open-drain, requiring an external pull-up, and delivers ≤700mV saturation voltage at 4mA sink (VDD = 5V, TA = –40°C to +125°C). Propagation delay is 90–200ns (tPHL/tPLH) at 100mV overdrive and 5V supply, with PSRR of 60–70dB across 1.8–5.5V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 5.5V - enables direct interface with Li-ion, 3.3V, and 5V logic without level shifting |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial edge environments |
| Supply Current (4 comp.) | 140–430µA - ultra-low quiescent power supports always-on battery monitoring |
| Input Hysteresis | 2mV (internal, fixed) - eliminates false triggering on noisy or slowly ramping sensor signals |
| Output Saturation Voltage | ≤700mV @ 4mA sink - ensures strong logic-low assertion even at high temperature and low VDD |
| Input Offset Voltage | ≤9mV (max, –40°C to +125°C) - maintains accuracy across full automotive temperature range |
| Propagation Delay | 90ns (tPHL, typ.) @ 100mV overdrive - supports fast response in motor control feedback loops |
Pinout & Package
LMX339HAUD+ is housed in a 14-pin TSSOP package (3.0mm × 4.4mm × 1.2mm, 0.65mm pitch), RoHS-compliant and optimized for automated assembly and thermal dissipation in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Noninverting input of Comparator A - accepts signals down to VSS – 0.1V |
| 2 | VSS | Negative supply (GND) - reference for all inputs and outputs |
| 3 | IN− | Inverting input of Comparator A - differential pair input with no phase reversal |
| 4 | OUTA | Open-drain output of Comparator A - requires external pull-up for logic-high assertion |
| 5 | VDD | Positive supply (1.8–5.5V) - powers all four comparators and internal bias circuitry |
| 6 | INA+ | Noninverting input of Comparator B - independently configurable per channel |
| 7 | INA− | Inverting input of Comparator B - supports differential or single-ended sensing |
| 8 | OUTB | Open-drain output of Comparator B - electrically isolated from OUTA/OUTC/OUTD |
| 9 | INC+ | Noninverting input of Comparator C - identical electrical characteristics to IN+ pins 1 and 6 |
| 10 | INC− | Inverting input of Comparator C - matched offset and hysteresis behavior |
| 11 | IND− | Inverting input of Comparator D - fully independent channel with same DC/AC specs |
| 12 | IND+ | Noninverting input of Comparator D - supports multi-threshold detection across four channels |
| 13 | OUTD | Open-drain output of Comparator D - compatible with 1.8V, 3.3V, or 5V bus pull-ups |
| 14 | OUTC | Open-drain output of Comparator C - allows individual channel enable/disable via pull-up control |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2mV hysteresis | Eliminates need for external positive-feedback resistors in noise-prone applications like battery voltage monitoring |
| Rail-to-rail input range including ground | Enables direct connection to sensors with 0V output (e.g., thermistors, current-sense amps) |
| No phase reversal on overdriven inputs | Prevents erroneous output toggling when input exceeds common-mode limits - critical for fault detection |
| Low 700mV output saturation (max) | Guarantees clean TTL/CMOS-compatible low-level signaling even at 125°C and 4mA load |
| Submicron CMOS process | Delivers superior PSRR (60–70dB) and CMRR vs. legacy bipolar comparators, reducing EMI susceptibility |
Applications
| Battery Voltage Monitoring | Automotive Door Lock Control |
|---|---|
Use Scenario: Real-time monitoring of 12V lead-acid or 48V mild-hybrid battery packs during charge/discharge cycles. IC Role / Device Role / Timing Role: Quad comparator detects under-voltage, over-voltage, and temperature thresholds using resistor-divider networks and thermistor inputs. Use Value: Internal 2mV hysteresis prevents chatter during gradual voltage sag, while -40°C to +125°C rating ensures reliability in engine bay mounting. | Use Scenario: Detecting actuator position and latch status in power door lock modules with brushed DC motors. IC Role / Device Role / Timing Role: Four independent comparators monitor motor current sense, hall-effect switch outputs, and supply rail stability. Use Value: Open-drain outputs interface directly with microcontroller GPIOs; low 140µA supply current extends module standby life. |
| Industrial Sensor Interface | Portable Medical Device Alert System |
Use Scenario: Converting analog outputs from pressure, flow, or gas sensors into digital alerts for PLC or MCU input. IC Role / Device Role / Timing Role: Each comparator sets a distinct trip point for high/low alarm, fault, and calibration verification. Use Value: Rail-to-rail input range accepts 0–5V sensor spans without external level-shifting; 90ns propagation enables rapid fault shutdown. | Use Scenario: Battery depletion warning, oxygen saturation threshold crossing, and audible alarm activation in handheld pulse oximeters. IC Role / Device Role / Timing Role: LMX339HAUD+ compares ADC reference voltages, battery voltage dividers, and sensor thresholds simultaneously. Use Value: 1.8V minimum supply enables operation from single-cell LiPo; 430µA max current at 5V preserves battery runtime in low-duty-cycle alert mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Wider supply range (2–36V), no internal hysteresis, higher quiescent current (500µA), only rated to +70°C | Requires external hysteresis resistors; unsuitable for automotive under-hood use | Select LMX339HAUD+ when hysteresis, low power, and extended temperature are mandatory |
| TLV339IPWR | Single-supply 1.65–5.5V, 200nA supply current, no internal hysteresis, rated –40°C to +125°C | Lacks built-in noise immunity; needs external components for stable thresholding | Choose LMX339HAUD+ where integrated 2mV hysteresis reduces BOM count and layout complexity |
Compared with LM339DR and TLV339IPWR, the LMX339HAUD+ uniquely combines automotive temperature qualification, internal hysteresis, and sub-500µA supply current in a quad configuration - delivering drop-in noise immunity without external components or derating penalties.
Availability
LMX339HAUD+ is available at Aetrix Electronics and suitable for battery management systems, automotive body electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMX339HAUD+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for automotive, industrial, and communications markets, emphasizing high reliability and extended temperature performance.
The LMX339HAUD+ belongs to Maxim's LMX339H family of hysteresis-equipped comparators, engineered specifically for robust threshold detection in harsh environments where noise immunity and wide supply/temperature operation are essential.
FAQ
What is the maximum sink current capability of each output in LMX339HAUD+?
Each open-drain output of the LMX339HAUD+ can sink up to 73mA (typical) at VDD = 5V and TA = +25°C, with guaranteed minimum of 10mA. At 125°C and 5V, the guaranteed sink current remains ≥10mA, ensuring reliable interface with standard logic-level inputs and LED drivers across the full automotive temperature range.
Does LMX339HAUD+ require external hysteresis resistors?
No. The LMX339HAUD+ integrates 2mV of internal hysteresis, eliminating the need for external positive-feedback resistors in most noise-sensitive applications. This feature is factory-trimmed and stable over temperature (±0.2mV variation from –40°C to +125°C), making LMX339HAUD+ ideal for battery voltage monitoring and motor stall detection where board space and BOM count matter.
Can LMX339HAUD+ operate from a 1.8V supply?
Yes. The LMX339HAUD+ is fully specified and guaranteed to operate from 1.8V to 5.5V. At 1.8V, it delivers 120–200µA total supply current (all four comparators), 35mV output saturation voltage at 1mA sink, and maintains 2mV internal hysteresis - enabling direct integration into single-cell Li-ion or energy-harvesting systems without voltage boosting.
What is the input common-mode voltage range of LMX339HAUD+?
The input common-mode voltage range of LMX339HAUD+ extends from VSS – 0.1V to VDD – 0.7V. This rail-to-rail input capability includes ground (VSS), allowing direct interfacing with 0V-referenced sensors such as thermistors, current-sense amplifiers, and resistive divider networks without level-shifting circuitry - a key advantage over many legacy comparators.
Is LMX339HAUD+ pin-compatible with standard LM339 packages?
No. LMX339HAUD+ uses a 14-pin TSSOP package (U16M+1), whereas the industry-standard LM339 is offered in 14-pin SOIC (S8+4) and PDIP packages. Though both have identical pin functions and numbering, the TSSOP footprint differs mechanically - requiring PCB layout adaptation. However, LMX339HAUD+ is a functional and electrical drop-in replacement for LM339 in new designs targeting smaller size and better thermal performance.
LMX339HAUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 73mA @ 5V
- Current - Output (Typ):
- 300µA
- Current - Quiescent (Max):
- 70dB PSRR
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- 2mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
LMX339HAUD+ FAQ
1.How can I place an order for LMX339HAUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for LMX339HAUD+ 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 LMX339HAUD+ reliable?
The price and inventory of LMX339HAUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMX339HAUD+ is usually 5 days.
3.What payment methods are accepted for LMX339HAUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMX339HAUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMX339HAUD+?
LMX339HAUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMX339HAUD+ 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 LMX339HAUD+?
For technical support, including LMX339HAUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMX339HAUD+ requirements.
6.How does Aetrix verify that LMX339HAUD+ is sourced from the original manufacturer or authorized distributors?
All LMX339HAUD+ 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 LMX339HAUD+ meets industry standards.
7.What is the process for return or replacement of LMX339HAUD+?
All LMX339HAUD+ units undergo pre-shipment inspection (PSI). If there is an issue with LMX339HAUD+, 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 LMX339HAUD+ part is unused and in its original packaging.
Return procedure for LMX339HAUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMX339HAUD+ Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP USA Inc.
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