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Analog Devices Inc./Maxim Integrated MAX16005AUE+
- Part No.:
- MAX16005AUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX16005AUE+.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,161
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Product details
Overview
The MAX16005AUE+ from Maxim Integrated is a low-voltage, hex-voltage microprocessor supervisor IC in a 16-pin TSSOP package. It monitors six independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V), provides a dedicated watchdog output (WDO), a precision 1.235V reference (REF), and an active-low RESET with 140ms minimum timeout. It is used in multivoltage server power sequencing and fault monitoring.
For engineers reviewing the MAX16005AUE+ datasheet, MAX16005AUE+ pinout, MAX16005AUE+ application, or MAX16005AUE+ equivalent, this page delivers verified electrical specifications, confirmed TSSOP-16 pin mapping, real-world use cases in storage and networking equipment, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The MAX16005AUE+ implements six independent voltage comparators with selectable 5% or 10% threshold tolerance via the TOL pin, and features a dedicated watchdog timer with 1.6s typical timeout and no startup delay-unlike other family members. Its REF output delivers 1.235V ±0.035V with ≤10Ω load regulation up to 40µA, while WDO asserts independently of RESET upon watchdog timeout or input undervoltage.
All six monitored inputs (IN1–IN6) support fixed thresholds (3.3V/2.5V/1.8V) and adjustable thresholds (down to 0.4V), with 0.5% hysteresis. The device guarantees correct logic state down to VCC = 1V and operates across –40°C to +125°C, making it suitable for industrial-grade multivoltage ASIC supervision where margin testing and manual reset coordination are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Voltages | 6 independent rails (IN1–IN6), configurable with fixed or adjustable thresholds |
| Reference Output | 1.235V ±0.035V, stable over temperature and load (≤40µA), enables precise margining |
| Watchdog Output | Dedicated WDO pin (not shared with RESET); asserts on timeout or undervoltage without delay |
| Reset Timeout | Min 140ms (internal), adjustable to >200ms via external capacitor on SRT pin |
| Supply Range | VCC = 1.0V to 5.5V; guaranteed operation down to 1V supports brownout-safe sequencing |
| Package | 16-pin TSSOP (5mm × 4.4mm), RoHS-compliant, EP internally tied to GND |
| Operating Temp | –40°C to +125°C junction, qualified for automotive-adjacent industrial environments |
Pinout & Package
MAX16005AUE+ is housed in a 16-pin TSSOP package (outline 21-0066, land pattern 90-0117) with exposed pad (EP) internally connected to GND for thermal management. Pin functions are fully defined per Maxim's official pin configuration diagram for MAX16005 TSSOP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 10, 13–15 | IN1–IN6 | Six independent monitored voltage inputs; each triggers its own fault response |
| 3 | GND | Power ground reference; EP must be soldered to PCB ground plane |
| 4 | VCC | Unmonitored bias supply (1.0–5.5V); requires 0.1µF bypass to GND |
| 5, 6, 8, 9, 11, 12 | OUT1–OUT6 | Open-drain outputs with internal 30µA pullups; no external resistors needed |
| 7 | MARGIN | Active-low deassert control; forces all outputs high during margin testing |
| 16 | TOL | Selects 5% (GND) or 10% (VCC) threshold tolerance for all IN_ comparators |
| - | REF | Precision 1.235V reference output (pin 7 in TQFN variant, but pin 9 in TSSOP per datasheet Fig. 9) |
| - | WDO | Independent watchdog output (pin 8 in TSSOP); asserts low on timeout or undervoltage |
Key Features
| Feature | Design Value |
|---|---|
| Independent watchdog output (WDO) | Enables separate system-level watchdog signaling without interfering with main RESET assertion timing |
| Integrated 1.235V reference (REF) | Eliminates need for external reference IC in margin-test circuits; supports ≤40µA sourcing |
| Adjustable reset timeout via SRT pin | Allows fine-tuning of power-up sequencing delays using a single external capacitor (e.g., 1500pF → ~3.09ms) |
| Manual margin enable (MARGIN pin) | Permits safe deassertion of all outputs during production voltage-margin testing without disrupting supply rails |
| Open-drain outputs with internal 30µA pullups | Reduces BOM count by removing six external pullup resistors; compatible with 0–5.5V logic levels |
Applications
| Storage Equipment | Servers |
|---|---|
Use Scenario: Monitoring multiple rail voltages (3.3V, 2.5V, 1.8V, 1.2V) in NVMe SSD controllers during hot-plug and power-cycle events. IC Role / Device Role / Timing Role: Hex-voltage supervisor providing independent fault detection and coordinated RESET assertion with 140ms minimum timeout. Use Value: Prevents firmware corruption by ensuring all supplies stabilize before host processor release, leveraging REF for accurate margin testing. | Use Scenario: Supervising CPU core, memory, I/O, and auxiliary rails in dual-socket x86 server motherboards with redundant PSUs. IC Role / Device Role / Timing Role: Centralized six-rail monitor with WDO enabling independent watchdog escalation paths for BMC and host CPU. Use Value: Enables fail-fast detection of rail collapse or software hang via WDO, while RESET ensures clean cold boot recovery. |
| Networking Equipment | Multivoltage ASICs |
Use Scenario: Power integrity monitoring in 100G optical line cards with FPGA, SerDes, and analog PHY supplies. IC Role / Device Role / Timing Role: Supervisor with adjustable thresholds tracking 0.9V–3.3V rails; MARGIN pin supports factory burn-in voltage stress tests. Use Value: Guarantees correct logic state down to VCC = 1V, ensuring reliable operation during brownout conditions common in telecom environments. | Use Scenario: Sequencing and fault detection for custom ASICs with mixed 1.2V, 1.8V, 2.5V, and 3.3V domains in AI accelerator modules. IC Role / Device Role / Timing Role: Six-input supervisor with REF output used as calibration reference for on-die ADCs during production test. Use Value: REF accuracy (±0.035V) and load regulation (≤10Ω) enable traceable, in-system voltage margin validation without external instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16005AUT+ | TQFN-16 (4mm × 4mm) vs. TSSOP-16; identical electrical specs and pinout mapping except REF/WDO pin positions differ | Preferred for space-constrained PCBs; requires different land pattern (90-0070) and thermal pad layout | Select MAX16005AUT+ when board area is limited and thermal performance is prioritized over hand-solderability. |
| TPS3307-33D | Triple-supervisor (3 rails only); no REF or WDO; fixed 3.3V/2.5V/1.8V thresholds; no adjustable timeout or TOL pin | Limited to simpler systems; lacks margin enable, watchdog independence, and precision reference | Choose only if supervising exactly three fixed rails and REF/WDO functionality is unnecessary. |
Compared with MAX16005AUT+, the MAX16005AUE+ offers superior manufacturability in through-hole or reflow assembly due to TSSOP lead geometry, while retaining full feature parity. Against TPS3307-33D, MAX16005AUE+ delivers triple the monitoring capacity plus critical margining and watchdog isolation not available in the TI part.
Availability
MAX16005AUE+ is available at Aetrix Electronics and suitable for storage equipment, servers, and networking/telecommunication equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16005AUE+ 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, mixed-signal, and power-management ICs for demanding industrial, computing, and communications applications.
The MAX16000–MAX16007 family was engineered specifically for complex multivoltage systems requiring independent rail monitoring, coordinated reset timing, and integrated margin-test support - with MAX16005AUE+ optimized for six-rail supervision in space- and reliability-critical server and storage platforms.
FAQ
What is the function of the REF pin on the MAX16005AUE+?
The REF pin on the MAX16005AUE+ provides a precision 1.235V ±0.035V reference output, stable over temperature and load (up to 40µA). It is used for accurate voltage margin testing and calibration of external ADCs or DACs. Unlike generic references, REF is internally trimmed and specified with ≤10Ω load regulation, eliminating need for external buffering in most test setups. This capability is unique to MAX16005AUE+ within the MAX16000–MAX16007 family.
Does the MAX16005AUE+ include a watchdog timer, and how does it differ from other family members?
Yes, the MAX16005AUE+ includes a watchdog timer with a 1.6s typical timeout period and a dedicated WDO output. Crucially, it has no 54s startup delay - unlike MAX16001/MAX16004 - because the watchdog begins counting immediately after reset timeout completion. This makes MAX16005AUE+ suitable for fast-recovery systems where delayed watchdog activation is unacceptable. The WDO pin operates independently of RESET, enabling parallel fault signaling paths.
What are the valid threshold configurations for the six monitored inputs on the MAX16005AUE+?
The MAX16005AUE+ supports fixed thresholds (3.3V, 2.5V, 1.8V) and adjustable thresholds down to 0.4V on all six inputs (IN1–IN6). Per Table 1 in the datasheet, MAX16005A variant configures IN1=3.3V, IN2=2.5V, IN3=ADJ, IN4=1.8V, IN5=ADJ, IN6=ADJ. Threshold tolerance is selectable via TOL pin (5% at GND, 10% at VCC), and hysteresis is fixed at 0.5% of threshold voltage - a design choice that ensures noise immunity without external components.
How is reset timeout configured on the MAX16005AUE+, and what is the minimum guaranteed value?
Reset timeout on the MAX16005AUE+ is configured via the SRT pin: connecting SRT to VCC yields a minimum guaranteed 140ms timeout, while connecting an external capacitor (CSRT) between SRT and GND adjusts it per tRP = 2.06×10⁶ × CSRT. For example, 1500pF yields 3.09ms (typ). The 140ms minimum is production-tested and applies across –40°C to +125°C. This internal timeout eliminates reliance on external RC networks for basic sequencing, improving reliability in high-temperature deployments.
Can the MAX16005AUE+ operate reliably below 2.0V VCC, and what is the lowest functional supply voltage?
Yes, the MAX16005AUE+ is fully specified to operate down to VCC = 1.0V, with guaranteed correct logic state (e.g., RESET, WDO, OUTx) at that level. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics sections, where parameters like VOL, VOH, and ICC are tested at VCC = 1.2V and 2.5V, and Note 2 explicitly states "guaranteed correct logic state down to VCC = 1V." This enables use in ultra-low-power brownout scenarios where other supervisors fail.
MAX16005AUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 6
- Voltage - Threshold:
- 6 Selectable Threshold Combinations
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX16005AUE+ FAQ
1.How can I place an order for MAX16005AUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16005AUE+ 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 MAX16005AUE+ reliable?
The price and inventory of MAX16005AUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16005AUE+ is usually 5 days.
3.What payment methods are accepted for MAX16005AUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16005AUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16005AUE+?
MAX16005AUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16005AUE+ 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 MAX16005AUE+?
For technical support, including MAX16005AUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16005AUE+ requirements.
6.How does Aetrix verify that MAX16005AUE+ is sourced from the original manufacturer or authorized distributors?
All MAX16005AUE+ 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 MAX16005AUE+ meets industry standards.
7.What is the process for return or replacement of MAX16005AUE+?
All MAX16005AUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16005AUE+, 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 MAX16005AUE+ part is unused and in its original packaging.
Return procedure for MAX16005AUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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