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Analog Devices Inc./Maxim Integrated MAX16002DTC+T
- Part No.:
- MAX16002DTC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 12-WQFN Exposed Pad
- Datasheet:
-
MAX16002DTC+T.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
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Product details
Overview
The MAX16002DTC+T from Maxim Integrated is a low-voltage quad-voltage microprocessor supervisor IC in a 12-pin TQFN (4mm × 4mm) package, monitoring four independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V) with ±5% or ±10% threshold tolerance selection, 140ms minimum reset timeout, and integrated watchdog timer (1.6s typical timeout). It serves as a system-level power integrity guardian in multivoltage server and storage platforms.
For engineers reviewing the MAX16002DTC+T datasheet, MAX16002DTC+T pinout, MAX16002DTC+T application, or MAX16002DTC+T equivalent, key selection criteria include its quad-rail monitoring capability, capacitor-adjustable reset timeout, open-drain outputs with internal 30µA pullups, manual reset and margin enable inputs, and guaranteed operation down to VCC = 1V - all critical for high-reliability embedded power sequencing.
Technical Context
The MAX16002DTC+T implements a fixed-threshold + adjustable-input architecture supporting simultaneous monitoring of four voltage rails with user-selectable 5% or 10% threshold accuracy via the TOL pin. Its RESET output asserts when any monitored voltage falls below its threshold or upon MR assertion, holding for a programmable timeout after recovery.
It integrates a watchdog timer with 1.6s typical timeout and 54s startup delay, disabled by leaving WDI floating; all outputs are open-drain with internal 30µA pullups, eliminating external resistors while allowing external voltage drive up to 5.5V - enabling flexible interface with diverse logic families and rail voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Rails | Four independent supplies (IN1–IN4), configurable with fixed thresholds (3.3V/2.5V/1.8V) or adjustable down to 0.4V |
| Threshold Accuracy | ±5% (TOL = GND) or ±10% (TOL = VCC), enabling precise margining for production test |
| Reset Timeout | Min 140ms (SRT = VCC); adjustable up to ~3.9s via external capacitor on SRT pin |
| Watchdog Timeout | 1.12–2.40s (typ 1.6s), with 35–72s startup delay after reset - ensures safe boot before watchdog activation |
| Supply Range | VCC = 1.0V to 5.5V; guaranteed correct logic state down to 1V - supports ultra-low-power brownout detection |
| Output Type | Open-drain RESET and four OUT_ outputs, each with internal 30µA pullup - eliminates need for 4 external pullup resistors |
| Operating Temp | -40°C to +125°C - qualified for industrial and extended-temperature server/storage environments |
Pinout & Package
Package: 12-pin TQFN (4mm × 4mm), exposed pad (EP) internally connected to GND for thermal management. Pinout validated per Maxim's MAX16002-specific top-view diagram (document pg. 8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 10, 11 | IN1–IN4 | Four independent monitored voltage inputs; each compares against factory-set or adjustable threshold |
| 3 | GND | Ground reference for all analog comparators and digital logic; connects to EP for thermal conduction |
| 4 | VCC | Unmonitored bias supply (1.0–5.5V); powers internal circuitry and provides pullup reference for open-drain outputs |
| 5, 6, 8, 9 | OUT1–OUT4 | Independent open-drain outputs asserting low on respective INx undervoltage; each has internal 30µA pullup |
| 7 | MARGIN | Active-low input to force all OUT_ and RESET high during margin testing - enables voltage stress without false resets |
| 12 | TOL | Selects threshold tolerance: GND = ±5%, VCC = ±10% - critical for production yield vs. robustness trade-off |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitors | Enables discrete power-rail supervision for complex ASIC/FPGA systems without external comparators or logic |
| Capacitor-adjustable reset timeout | Supports design-specific reset hold times (140ms–3.9s) without firmware changes or BOM additions |
| Integrated watchdog timer | Prevents system lockup in unattended operation; 1.6s timeout aligns with typical firmware initialization windows |
| Internal 30µA output pullups | Reduces component count and PCB area by eliminating four external pullup resistors per device |
| Margin enable function | Allows controlled deassertion of all outputs during voltage margin testing - essential for production validation |
Applications
| Storage Equipment | Servers |
|---|---|
Use Scenario: Monitoring multiple rails (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: Quad-voltage supervisor asserting RESET only when all rails stabilize, preventing premature firmware execution. Use Value: Eliminates need for discrete RC reset circuits and reduces risk of corrupted NAND writes due to partial power-up. | Use Scenario: Supervising core, I/O, memory, and auxiliary rails in dual-socket x86 server motherboards with redundant PSUs. IC Role / Device Role / Timing Role: Independent OUT_ signals feed FPGA-based power sequencer; RESET coordinates BIOS handoff timing. Use Value: Enables deterministic power-good sequencing across 4 rails with <20µs propagation delay per channel. |
| Networking Equipment | Multivoltage ASICs |
Use Scenario: Ensuring clean power-up of 100G Ethernet PHYs, SerDes, and packet processors in telecom line cards. IC Role / Device Role / Timing Role: Monitors 5V aux, 3.3V I/O, 1.8V SerDes, and 1.2V core rails; MARGIN pin supports field-service voltage margining. Use Value: Guarantees ASIC reset release only after all rails exceed thresholds - prevents metastability in high-speed interfaces. | Use Scenario: Validating voltage stability across heterogeneous domains (CPU, GPU, AI accelerator) in edge inference SoCs. IC Role / Device Role / Timing Role: Four OUT_ outputs feed domain-specific power controllers; adjustable thresholds accommodate process variation. Use Value: Supports ±5% tight-tolerance monitoring for high-performance domains and ±10% for less critical I/O rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16001DTC+T | Identical pinout and electrical specs, but lacks watchdog timer functionality | Suitable where system-level software or external hardware handles watchdog duties | Select when watchdog is unnecessary to reduce complexity and cost |
| TPS3307-33DGNR | Triple-supervisor (not quad); fixed 3.3V/3.3V/3.3V thresholds; no adjustable inputs or MARGIN pin | Limited to homogeneous 3.3V systems; no margin testing support | Choose only for simple 3.3V-only designs lacking multirail or test flexibility needs |
Compared with MAX16001DTC+T and TPS3307-33DGNR, the MAX16002DTC+T uniquely delivers quad-rail monitoring with adjustable thresholds, integrated watchdog, and margin enable - making it the only option among the three that supports full production testability and heterogeneous rail supervision in compact TQFN packaging.
Availability
MAX16002DTC+T 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 product lifecycles.
Supply support for MAX16002DTC+T 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 multivoltage system supervision in space-constrained, high-reliability platforms such as enterprise SSDs and carrier-grade networking gear - emphasizing low quiescent current, wide temperature operation, and test-friendly features like MARGIN and TOL.
FAQ
What is the function of the TOL pin on the MAX16002DTC+T?
The TOL pin on the MAX16002DTC+T selects threshold tolerance: connecting it to GND sets ±5% accuracy for tight-margin applications, while connecting it to VCC selects ±10% for greater noise immunity in noisy environments. This configuration directly affects the hysteresis and trip-point stability of all four monitored inputs (IN1–IN4) and is validated in the Electrical Characteristics table (VTH parameter rows). The MAX16002DTC+T uses this pin to maintain consistent behavior across its entire operating temperature range (-40°C to +125°C).
Can the MAX16002DTC+T monitor voltages below 1.0V?
Yes, the MAX16002DTC+T can monitor voltages as low as 0.4V using its adjustable threshold inputs (e.g., IN3 or IN4 configured as ADJ in Table 1). When TOL = GND, the adjustable threshold is 0.388V to 0.400V (typ 0.394V); when TOL = VCC, it is 0.366V to 0.378V (typ 0.372V). This capability is explicitly specified in the Electrical Characteristics table under "Adjustable Threshold (IN_ Falling)" and enables supervision of sub-1V core rails in modern low-power ASICs - a feature confirmed for the MAX16002DTC+T variant.
How does the watchdog timer behave during power-up of the MAX16002DTC+T?
The MAX16002DTC+T watchdog timer enters a 54-second startup delay after reset assertion, during which no timeout occurs - allowing sufficient time for system clocks and firmware initialization before watchdog monitoring begins. This behavior is documented in the Watchdog Startup Period specification (35–72s range) and applies specifically to the MAX16002DTC+T. If WDI remains unconnected, the watchdog is disabled entirely; if asserted, it resets the system after 1.12–2.40s (typ 1.6s) of inactivity. The MAX16002DTC+T implements this timing without external components.
What is the purpose of the MARGIN pin on the MAX16002DTC+T?
The MARGIN pin on the MAX16002DTC+T is an active-low input that forces all four OUT_ outputs and the RESET output into a high (deasserted) state regardless of monitored voltage conditions - enabling safe voltage margin testing during production. Pulling MARGIN low overrides all undervoltage detections, allowing engineers to intentionally stress supply rails while keeping downstream logic active. This function is electrically verified in the MAX16002DTC+T's Pin Description (pg. 10) and supported across its full -40°C to +125°C operating range.
Does the MAX16002DTC+T require external pullup resistors on its open-drain outputs?
No, the MAX16002DTC+T does not require external pullup resistors on its RESET or four OUT_ outputs because each includes an internal 30µA pullup current source referenced to VCC. This design eliminates four discrete resistors per device, reducing BOM cost and PCB area. However, each output can still be driven by an external voltage up to 5.5V - a capability confirmed in the Absolute Maximum Ratings table and applicable to the MAX16002DTC+T's specific 12-pin TQFN implementation.
MAX16002DTC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 2.5V, 3.3V, Adj, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (4x4)
MAX16002DTC+T FAQ
1.How can I place an order for MAX16002DTC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16002DTC+T 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 MAX16002DTC+T reliable?
The price and inventory of MAX16002DTC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16002DTC+T is usually 5 days.
3.What payment methods are accepted for MAX16002DTC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16002DTC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16002DTC+T?
MAX16002DTC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16002DTC+T 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 MAX16002DTC+T?
For technical support, including MAX16002DTC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16002DTC+T requirements.
6.How does Aetrix verify that MAX16002DTC+T is sourced from the original manufacturer or authorized distributors?
All MAX16002DTC+T 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 MAX16002DTC+T meets industry standards.
7.What is the process for return or replacement of MAX16002DTC+T?
All MAX16002DTC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16002DTC+T, 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 MAX16002DTC+T part is unused and in its original packaging.
Return procedure for MAX16002DTC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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