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Analog Devices Inc./Maxim Integrated MAX6339OUT-T REEL
- Part No.:
- MAX6339OUT-T REEL
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6339OUT-T REEL.pdf
- Description:
- QUAD VOLTAGE MICROPROCESSOR SUPE
- Quantity:
- Payment:
- Shipping:
Inventory:1,825
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Product details
Overview
MAX6339OUT-T REEL from Maxim Integrated is a precision quad voltage supervisory IC that monitors +5.0V, +3.3V, adjustable, and -5.0V supply rails with ±10% threshold tolerance. It delivers a single active-low open-drain RESET output with 140ms minimum timeout, consumes only 55µA quiescent current, and operates from -40°C to +85°C. It is used in telecom and industrial systems requiring reliable multi-rail power integrity monitoring.
For engineers reviewing the MAX6339OUT-T REEL datasheet, MAX6339OUT-T REEL pinout, MAX6339OUT-T REEL application, or MAX6339OUT-T REEL equivalent, key selection criteria include factory-trimmed -5V monitoring capability, IN2-powered operation, reset validity down to 1V on IN1/IN2, immunity to short transients, and SOT23-6 footprint compatibility for space-constrained designs.
Technical Context
The MAX6339OUT-T REEL integrates four independent voltage comparators with a shared 1.23V bandgap reference and internal resistor-divider networks for fixed thresholds (+5.0V, +3.3V, -5.0V), while one input (IN3) supports user-adjustable monitoring via external resistor divider. Its reset logic uses NOR-gated comparator outputs feeding a timeout timer with guaranteed 140ms minimum assertion after all inputs recover.
Power is derived solely from IN2 (+3.3V in this variant); RESET remains valid as long as IN1 ≥1V or IN2 ≥1V. The open-drain output includes a 10µA internal pullup to IN2, eliminating need for external pullup in many 3.3V logic interfaces. Threshold hysteresis is 0.3% to suppress noise-induced false resets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| +5V Threshold | 4.50V to 4.75V (-10% to -5% tolerance); ensures reliable reset during 5V rail undervoltage events |
| +3.3V Threshold | 2.85V to 3.15V (-10% to -5% tolerance); matches standard 3.3V supply tolerance bands |
| -5V Threshold | -4.50V to -4.75V (+10% to +5% tolerance); enables accurate negative rail supervision |
| Adjustable Threshold | 1.23V ±0.03V internal reference; allows custom monitoring of any positive voltage via resistor divider |
| Reset Timeout | 140ms to 280ms min/max; provides sufficient hold time for µP initialization and peripheral stabilization |
| Supply Current | 55µA typical at +3.3V; enables low-power always-on supervision without impacting system budget |
| Operating Temp | -40°C to +85°C; supports industrial and telecom environments without derating |
Pinout & Package
MAX6339OUT-T REEL is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN1 | +5.0V monitored input | Fixed-threshold input for primary 5V rail; asserts reset if voltage drops below 4.50–4.75V |
| 2 - IN2 | Device power supply & +3.3V monitor | Supplies internal circuitry; also serves as second monitored rail (2.85–3.15V) |
| 3 - IN3 | User-adjustable voltage input | Accepts external resistor divider to monitor custom positive voltages referenced to 1.23V |
| 4 - IN4 | -5.0V monitored input | Fixed-threshold input for negative rail; asserts reset if voltage rises above -4.50V to -4.75V |
| 5 - GND | Analog/digital ground reference | Common return path for all comparators and reset logic; must be low-impedance |
| 6 - RESET | Active-low open-drain reset output | Drives low when any input violates threshold; internal 10µA pullup to IN2 eliminates external resistor in 3.3V systems |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitoring | Simultaneously supervises +5V, +3.3V, custom positive, and -5V rails-no external components required for factory options |
| Factory-trimmed -5V supervision | Guaranteed -4.50V to -4.75V threshold range enables robust negative rail monitoring without calibration |
| 1V reset validity floor | RESET remains functional even if IN1 or IN2 sags to 1V-critical for brown-out recovery in multi-rail systems |
| Transient-immune comparator design | Rejects input glitches ≤100µs (at 50mV overdrive), preventing spurious resets in noisy power environments |
| Low 55µA quiescent current | Minimizes standby power draw-ideal for battery-backed or energy-sensitive embedded applications |
Applications
| Telecommunications Equipment | Industrial Control Systems |
|---|---|
|
Use Scenario: Monitoring multiple supply rails (5V, 3.3V, -5V, and auxiliary) in line cards and base station power modules. IC Role / Device Role / Timing Role: Quad voltage supervisor ensuring synchronized µP reset across mixed-voltage subsystems during AC brownouts or hot-swap events. Use Value: Eliminates discrete supervisor ICs and reduces BOM count by 75%, while guaranteeing 140ms reset hold time for FPGA configuration stability. |
Use Scenario: Supervising PLC I/O module supplies where -5V analog references coexist with 5V logic and 3.3V microcontrollers. IC Role / Device Role / Timing Role: Single-chip solution for detecting undervoltage on both positive and negative rails, triggering safe shutdown before analog corruption occurs. Use Value: Built-in -5V threshold and 1V reset validity enable fail-safe operation even during partial rail collapse-no external level-shifting needed. |
| High-End Printers | Data Storage Controllers |
|
Use Scenario: Power sequencing and fault detection in inkjet printer mainboards with motor drivers, ASICs, and sensor interfaces. IC Role / Device Role / Timing Role: Monitors 5V main logic, 3.3V SoC core, adjustable sensor bias, and -5V op-amp rails to prevent firmware crashes during voltage dips. Use Value: 0.3% threshold hysteresis prevents chatter during marginal 3.3V conditions, improving print job reliability under variable load. |
Use Scenario: Ensuring clean power-up and graceful degradation in SAS/SATA controller boards with dual 5V/3.3V domains and legacy -5V termination. IC Role / Device Role / Timing Role: Centralized reset generator asserting RESET until all rails stabilize-critical for NVMe controller initialization sequence compliance. Use Value: SOT23-6 footprint saves >25mm² vs. discrete solutions, enabling compact 2.5" drive form factor integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3307-33DGNR | Triple-monitor (not quad); no native -5V option; requires external resistor for adjustable threshold | Lacks integrated -5V supervision-requires additional circuitry for legacy analog subsystems | Choose only if -5V monitoring is unnecessary and board space permits added discretes |
| ADM1085AKSZ-REEL7 | Dual-monitor with thermal reset; no adjustable or negative rail support; 200ms fixed timeout | Cannot replace quad monitoring function-requires two devices to cover same rails | Select only for simpler dual-rail systems where cost per channel outweighs integration benefit |
Compared with TPS3307-33DGNR and ADM1085AKSZ-REEL7, the MAX6339OUT-T REEL uniquely integrates -5V supervision, user-adjustable monitoring, and true quad-rail coverage in one SOT23-6 package-reducing component count, layout complexity, and qualification effort for multi-supply industrial designs.
Availability
MAX6339OUT-T REEL is available at Aetrix Electronics and suitable for telecommunications equipment, industrial control systems, and data storage controllers requiring stable component supply, long-term lifecycle assurance, and tape-and-reel delivery for automated assembly.
Supply support for MAX6339OUT-T REEL 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 demanding industrial, communications, and computing applications-emphasizing reliability, integration, and low-power operation.
The MAX6339OUT-T REEL belongs to Maxim's µP supervisory product line, engineered specifically for multi-rail power integrity in space-constrained systems where simultaneous monitoring of positive, negative, and custom voltage rails is essential.
FAQ
What voltage rails does the MAX6339OUT-T REEL monitor?
The MAX6339OUT-T REEL monitors four specific rails: +5.0V (IN1), +3.3V (IN2), an adjustable positive voltage (IN3), and -5.0V (IN4). Its part number suffix "OUT" explicitly denotes this configuration per Maxim's Selector Guide. Each rail has factory-trimmed thresholds-+5V at 4.50–4.75V, +3.3V at 2.85–3.15V, and -5V at -4.50 to -4.75V-with IN3 referencing a precise 1.23V internal bandgap for custom scaling.
Does the MAX6339OUT-T REEL require external components to operate?
No, the MAX6339OUT-T REEL requires no external components for its factory-configured rails (+5V, +3.3V, -5V). Only IN3-the adjustable input-needs an external resistor divider to set a custom threshold. The device draws power directly from IN2 (+3.3V), and its open-drain RESET output includes a 10µA internal pullup to IN2, eliminating the need for an external pullup resistor in standard 3.3V logic interfaces.
How does the MAX6339OUT-T REEL handle brown-out conditions on IN2?
The MAX6339OUT-T REEL remains functional during brown-out on IN2 because its RESET output is guaranteed valid as long as either IN1 ≥1V or IN2 ≥1V. This design ensures reset assertion continues even if IN2 sags to 1V-critical for orderly microprocessor shutdown when the primary supply collapses. The internal circuitry maintains correct RESET state down to this 1V floor without requiring auxiliary biasing.
What is the reset timeout behavior of the MAX6339OUT-T REEL?
The MAX6339OUT-T REEL asserts RESET low whenever any monitored input falls below its threshold and holds it low for a minimum of 140ms after all inputs rise above their respective thresholds. This timeout is internally generated and guaranteed from -40°C to +85°C. Typical timeout is 200ms, with maximum specified at 280ms-ensuring sufficient hold time for microprocessor initialization, memory self-test, and peripheral configuration.
Can the MAX6339OUT-T REEL monitor voltages other than -5V on IN4?
No-the IN4 pin of the MAX6339OUT-T REEL is factory-configured exclusively for -5.0V monitoring with +5% or +10% tolerance. To supervise more negative rails (e.g., -12V), an external low-impedance resistor divider must be added ahead of IN4, scaled so the divided voltage falls within the -4.50V to -4.75V window. The MAX6339OUT-T REEL itself does not support reconfiguration of IN4's threshold; only IN3 is user-adjustable.
MAX6339OUT-T REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 2.93V, 4.38V, Adj, -4.38V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6339OUT-T REEL FAQ
1.How can I place an order for MAX6339OUT-T REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6339OUT-T REEL 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 MAX6339OUT-T REEL reliable?
The price and inventory of MAX6339OUT-T REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6339OUT-T REEL is usually 5 days.
3.What payment methods are accepted for MAX6339OUT-T REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6339OUT-T REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6339OUT-T REEL?
MAX6339OUT-T REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6339OUT-T REEL 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 MAX6339OUT-T REEL?
For technical support, including MAX6339OUT-T REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6339OUT-T REEL requirements.
6.How does Aetrix verify that MAX6339OUT-T REEL is sourced from the original manufacturer or authorized distributors?
All MAX6339OUT-T REEL 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 MAX6339OUT-T REEL meets industry standards.
7.What is the process for return or replacement of MAX6339OUT-T REEL?
All MAX6339OUT-T REEL units undergo pre-shipment inspection (PSI). If there is an issue with MAX6339OUT-T REEL, 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 MAX6339OUT-T REEL part is unused and in its original packaging.
Return procedure for MAX6339OUT-T REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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