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Analog Devices Inc./Maxim Integrated MAX16001ETE+
- Part No.:
- MAX16001ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16001ETE+.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,919
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Product details
Overview
The MAX16001ETE+ from Maxim Integrated is a quad-voltage microprocessor supervisor IC in a 16-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 MAX16001ETE+ datasheet, MAX16001ETE+ pinout, MAX16001ETE+ application, or MAX16001ETE+ equivalent, key selection criteria include quad-rail monitoring capability, capacitor-adjustable reset timeout, open-drain outputs with internal 30µA pullups, watchdog timer with 54s startup delay, and guaranteed operation down to VCC = 1V - all validated across –40°C to +125°C.
Technical Context
The MAX16001ETE+ implements independent voltage comparators per monitored rail, each with programmable hysteresis (0.5% of threshold) and selectable tolerance via the TOL pin. Its RESET output asserts low if any input falls below its threshold or MR is pulled low, holding for the full timeout after recovery.
It integrates a watchdog timer that starts counting after reset timeout completion, requiring periodic WDI transitions; leaving WDI floating disables it. The SRT pin supports either fixed 140ms timeout (SRT tied to VCC) or external capacitor adjustment (tRP = 2.06 MΩ × CSRT), with internal ramp current (600nA typ) and threshold (1.235V typ) defining timing accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Rails | 4 independent inputs (IN1–IN4), configurable for fixed thresholds (3.3V/2.5V/1.8V) or adjustable down to 0.4V |
| Reset Timeout | Min 140ms (internal); adjustable up to ~3.9s via external capacitor on SRT pin |
| Watchdog Timeout | 1.6s typical; 54s startup delay after reset before first timeout begins |
| Supply Range | VCC = 1.0V to 5.5V; guaranteed correct logic state down to 1V |
| Threshold Tolerance | Selectable 5% (TOL = GND) or 10% (TOL = VCC) for all monitored inputs |
| Output Type | Open-drain RESET and four OUT_ outputs, each with internal 30µA pullup to VCC |
| Operating Temp | –40°C to +125°C, fully specified; junction temperature rated to +150°C |
Pinout & Package
Package: 16-pin TQFN (4mm × 4mm, exposed pad), outline 21-0139, land pattern 90-0070. RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | IN1–IN4 | Four independent monitored voltage inputs; each compares against user-configured threshold |
| 3 | GND | Ground reference for all analog comparators and digital logic; connects internally to exposed pad |
| 4 | VCC | Unmonitored power supply input (1.0V–5.5V); powers internal circuitry and provides pullup reference |
| 5–8 | OUT1–OUT4 | Open-drain outputs asserting low when respective INx falls below threshold; 30µA internal pullup eliminates external resistors |
| 9 | MARGIN | Active-low manual deassert input; pulls all OUT_ and RESET high regardless of input conditions |
| 10 | TOL | Threshold tolerance select: GND = ±5%, VCC = ±10% for all monitored inputs |
| 11 | WDI | Watchdog timer input; edge-triggered reset; floating disables timer |
| 12 | MR | Active-low manual reset input; asserts RESET low; internal 20kΩ pullup to VCC |
| 13 | SRT | Set reset timeout: tied to VCC = 140ms min; capacitor to GND adjusts timeout |
| 14 | RESET | Active-low system reset output; asserts if any INx fails or MR is asserted; 30µA internal pullup |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitors | Enables simultaneous supervision of 3.3V, 2.5V, 1.8V, and one adjustable rail (0.4V–5.5V) without external components |
| Capacitor-adjustable reset timeout | Supports precise system boot sequencing by scaling timeout from 140ms to >3s using a single external capacitor on SRT |
| Integrated watchdog timer with startup delay | Prevents premature timeout during processor initialization with 54s grace period before first watchdog assertion |
| Internal 30µA pullups on all open-drain outputs | Eliminates need for 8 external pullup resistors (4 OUT_ + RESET), reducing BOM count and board space |
| Margin enable function | Allows safe deassertion of all outputs during voltage margin testing without altering supply conditions |
Applications
| Storage Equipment | Servers |
|---|---|
Use Scenario: Monitoring multiple rails (3.3V, 2.5V, 1.8V, 1.2V) in NVMe SSD controllers and RAID controller cards. IC Role / Device Role / Timing Role: Quad-voltage supervisor ensuring clean power-up sequencing and detecting brownouts on critical I/O, core, and memory supplies. Use Value: Prevents data corruption and firmware lockup by asserting RESET before unstable voltages reach FPGA or NAND flash interfaces. | Use Scenario: Supervising CPU core, memory, PCIe, and auxiliary rails in dual-socket x86 server motherboards. IC Role / Device Role / Timing Role: System-level power integrity monitor with watchdog timer guarding against firmware hangs during POST or runtime. Use Value: Enables autonomous recovery from processor lockup via WDI-triggered RESET, reducing unplanned downtime in 24/7 deployments. |
| Networking Equipment | Multivoltage ASICs |
Use Scenario: Power supervision in 10G/25G Ethernet switch line cards with mixed 12V, 5V, 3.3V, and 1.8V domains. IC Role / Device Role / Timing Role: Quad-rail supervisor coordinating reset assertion across PHY, MAC, and packet processor supplies during AC loss events. Use Value: Guarantees synchronized reset release across voltage domains, avoiding metastability in inter-chip communication links. | Use Scenario: Validating stable operation of custom ASICs with multiple internal supply domains (e.g., I/O, core, PLL, memory). IC Role / Device Role / Timing Role: Precision voltage monitor with ±5% threshold tolerance (TOL = GND) verifying rail compliance during production test and field operation. Use Value: Supports margin testing via MARGIN pin to verify ASIC functionality at ±5% voltage extremes without hardware rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16002ETE+ | No watchdog timer; identical quad-monitoring, pinout, and reset architecture | Suitable where system-level watchdog functionality is handled externally or not required | Select MAX16002ETE+ only if watchdog timer is unnecessary - avoids unused feature overhead and potential WDI routing complexity |
| TPS3307-33DGNR | Triple-monitor (not quad); fixed 3.3V/3.3V/3.3V thresholds; no adjustable inputs or watchdog | Limited to homogeneous 3.3V rail supervision; lacks flexibility for mixed-voltage systems | Choose only for simple 3.3V-only designs; cannot replace MAX16001ETE+ in multivoltage applications requiring 2.5V/1.8V/adjustable monitoring |
Compared with MAX16002ETE+, the MAX16001ETE+ adds watchdog supervision without changing pinout or quiescent current; versus TPS3307-33DGNR, it delivers true quad-rail flexibility and sub-1V operation - essential for modern low-voltage ASICs and servers.
Availability
The MAX16001ETE+ 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 MAX16001ETE+ 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 high-reliability computing infrastructure - delivering quad/hex/octal monitoring, integrated watchdogs, and wide-temperature operation in compact TQFN packages.
FAQ
What voltage rails does the MAX16001ETE+ monitor, and how are thresholds configured?
The MAX16001ETE+ monitors four independent voltage rails (IN1–IN4). Thresholds are factory-configured per variant (e.g., MAX16001A = 3.3V/2.5V/ADJ/1.8V); adjustable inputs support monitoring down to 0.4V. Tolerance is selected via the TOL pin: GND = ±5%, VCC = ±10%. Each comparator includes 0.5% hysteresis to prevent chatter near threshold.
Does the MAX16001ETE+ require external pullup resistors on its open-drain outputs?
No. The MAX16001ETE+ integrates 30µA internal pullups on RESET and all four OUT_ outputs, eliminating the need for external pullup resistors. Each output can also be driven by an external voltage up to 5.5V, enabling level-shifting flexibility in mixed-supply systems.
How is the reset timeout period set on the MAX16001ETE+?
The MAX16001ETE+ offers two reset timeout modes: fixed 140ms minimum (SRT tied to VCC), or capacitor-adjustable (SRT connected to GND via capacitor). Timeout is calculated as tRP = 2.06 MΩ × CSRT; a 1500pF capacitor yields ~3.09ms. Internal SRT ramp current (600nA typ) and threshold (1.235V typ) define timing accuracy.
What is the function of the MARGIN pin on the MAX16001ETE+?
The MARGIN pin on the MAX16001ETE+ is an active-low manual deassert input. Pulling MARGIN low forces all OUT_ outputs and RESET into a high-impedance (deasserted) state, regardless of input voltage conditions. This enables safe voltage margin testing without disrupting system power sequencing.
Can the watchdog timer on the MAX16001ETE+ be disabled, and how?
Yes. The watchdog timer on the MAX16001ETE+ is disabled by leaving the WDI pin unconnected (floating). The internal open-state detector draws only 400nA, so WDI must not be connected to sources/sinks exceeding 200nA. When enabled, the timer requires periodic edges on WDI; failure to transition within 1.6s (typ) asserts RESET.
MAX16001ETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- Adjustable/Selectable
- 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:
- 16-TQFN (4x4)
MAX16001ETE+ FAQ
1.How can I place an order for MAX16001ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16001ETE+ 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 MAX16001ETE+ reliable?
The price and inventory of MAX16001ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16001ETE+ is usually 5 days.
3.What payment methods are accepted for MAX16001ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16001ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16001ETE+?
MAX16001ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16001ETE+ 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 MAX16001ETE+?
For technical support, including MAX16001ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16001ETE+ requirements.
6.How does Aetrix verify that MAX16001ETE+ is sourced from the original manufacturer or authorized distributors?
All MAX16001ETE+ 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 MAX16001ETE+ meets industry standards.
7.What is the process for return or replacement of MAX16001ETE+?
All MAX16001ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16001ETE+, 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 MAX16001ETE+ part is unused and in its original packaging.
Return procedure for MAX16001ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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