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Analog Devices Inc./Maxim Integrated MAX16001BTE+
- Part No.:
- MAX16001BTE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16001BTE+.pdf
- Description:
- IC UP SUPERVISOR QUAD 16-TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,149
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Product details
Overview
MAX16001BTE+ from Maxim Integrated is a quad-voltage microprocessor supervisor IC designed for multivoltage system monitoring in industrial and computing applications. It monitors four independent supply rails (3.3V, adjustable, adjustable, 1.8V), provides a shared active-low RESET output asserting on any fault or manual reset, features a 1.6s watchdog timer with 54s startup delay, and operates across -40°C to +125°C.
For engineers reviewing the MAX16001BTE+ datasheet, MAX16001BTE+ pinout, MAX16001BTE+ application, or MAX16001BTE+ equivalent, this page delivers verified electrical specifications, confirmed 16-pin TQFN (4mm × 4mm) package mapping, validated pin functions including WDI, SRT, and MARGIN, and real-world use cases in servers and storage equipment requiring precise voltage sequencing and fault recovery.
Technical Context
The MAX16001BTE+ implements a fixed-threshold + adjustable-input architecture: IN1 and IN4 are factory-set to 3.3V and 1.8V respectively, while IN2 and IN3 support adjustable thresholds down to 0.4V via external resistor dividers. Its RESET output combines OR-logic across all four monitored inputs and MR assertion, with timeout controlled either by internal 140ms minimum or capacitor-adjustable via SRT pin.
It integrates a watchdog timer that clears on WDI edge transitions and enters a 54s startup window after reset release; the timer asserts RESET if no valid transition occurs within that period. All open-drain outputs (RESET, OUT1–OUT4) include internal 30µA pullups, eliminating external resistors while supporting up to 5.5V drive voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Voltages | Four rails: IN1 = 3.3V fixed, IN2/IN3 = adjustable (0.4V min), IN4 = 1.8V fixed - enables mixed-supply ASIC/FPGA power integrity checking |
| Reset Timeout | 140ms minimum (SRT = VCC); adjustable up to ~3.9s with 1500pF capacitor - supports diverse processor boot timing requirements |
| Watchdog Timeout | 1.6s typical (1.12–2.40s range); 54s startup delay after reset - prevents spurious resets during system initialization |
| Supply Voltage Range | VCC = 1.0V to 5.5V; guaranteed logic operation down to 1.0V - ensures reliable supervision even during brownout conditions |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood automotive, industrial control, and telecom base station environments |
| Quiescent Current | 45–70µA at VCC = 2.0–5.5V - enables always-on monitoring without significant battery drain in backup systems |
| Input Threshold Tolerance | Selectable 5% (TOL = GND) or 10% (TOL = VCC) - balances noise immunity vs. margin testing flexibility |
Pinout & Package
MAX16001BTE+ is housed in a 16-pin TQFN package (4mm × 4mm, exposed pad), RoHS-compliant, with thermal pad internally connected to GND for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | IN1, IN2, IN3, IN4 | Four independent monitored voltage inputs; IN1/IN4 fixed thresholds (3.3V/1.8V), IN2/IN3 adjustable via resistor divider |
| 3 | GND | Power ground reference; connects to exposed pad (EP) for thermal management |
| 4 | VCC | Unmonitored bias supply (1.0–5.5V); requires 0.1µF bypass capacitor to GND |
| 5–8 | OUT1–OUT4 | Open-drain outputs with internal 30µA pullup; each asserts low when its corresponding INx falls below threshold |
| 9 | MARGIN | Active-low deassert input; pulls all outputs high regardless of input conditions - used for functional margin testing |
| 10 | MR | Active-low manual reset input; asserts RESET low and initiates timeout after release - supports front-panel reset buttons |
| 11 | SRT | Set Reset Timeout input; connect capacitor to GND to extend timeout beyond 140ms; tie to VCC for internal minimum |
| 12 | TOL | Threshold tolerance select; GND = ±5%, VCC = ±10% - configures hysteresis and noise rejection level |
| 13 | WDI | Watchdog timer input; edge-sensitive; open-circuit disables timer; leakage <400nA - compatible with low-power GPIO |
| 14 | RESET | Active-low reset output; asserts when any INx fails or MR is pulled low; remains asserted for full timeout after recovery |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitoring | Enables simultaneous tracking of core, I/O, memory, and auxiliary rails in SoC-based systems without external comparators |
| Capacitor-adjustable reset timeout | Supports design-specific boot sequences from 140ms to >3s using single external capacitor - eliminates firmware dependency |
| Integrated watchdog with startup delay | 54s initial window prevents false triggers during BIOS/post-boot phases; 1.6s timeout thereafter ensures runtime health checks |
| Internal 30µA pullups on all outputs | Reduces BOM count by removing four external pullup resistors; maintains compatibility with 5.5V logic interfaces |
| Margin enable function | Allows safe deassertion of all outputs during production voltage-margin testing - avoids unintended system resets |
| Wide operating temperature range | -40°C to +125°C rating meets AEC-Q100 Grade 0 requirements for under-hood and industrial control applications |
Applications
| Server Power Management | Industrial PLC Controller |
|---|---|
Use Scenario: Monitoring 12V, 5V, 3.3V, and 1.8V rails powering CPU, memory, and I/O in dual-socket rack servers. IC Role / Device Role / Timing Role: Quad-voltage supervisor providing centralized RESET assertion and watchdog supervision for system-level fault containment. Use Value: Prevents boot failure due to undervoltage on any rail; 140ms+ timeout accommodates staggered power-up sequencing. |
Use Scenario: Supervising field I/O module supplies (24V DC-DC, 5V logic, 3.3V MCU, 1.8V FPGA core) in harsh factory environments. IC Role / Device Role / Timing Role: Fault-detection hub with MARGIN input enabling in-system voltage margining during commissioning and maintenance. Use Value: Guarantees correct logic state down to VCC = 1V; -40°C to +125°C operation ensures reliability in uncontrolled enclosures. |
| Enterprise Storage Array | Telecom Baseband Unit |
Use Scenario: Validating power integrity across SAS controller, NVMe SSDs, buffer memory, and PHY supplies in RAID enclosures. IC Role / Device Role / Timing Role: Supervisor with adjustable IN2/IN3 thresholds accommodating custom 1.1V or 1.0V ASIC rails not covered by fixed options. Use Value: Adjustable thresholds (0.4V min) and ±5%/±10% tolerance selection allow precise matching to nonstandard supply tolerances. |
Use Scenario: Ensuring stable operation of multi-core DSP, RF transceiver, clock distribution, and backplane interface supplies in 5G base stations. IC Role / Device Role / Timing Role: Watchdog-enabled supervisor detecting software hangs in real-time processing pipelines while maintaining deterministic reset behavior. Use Value: 1.6s watchdog timeout and 54s startup delay prevent premature resets during complex DSP initialization sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3307-33DGNR | Triple-supply monitor (3.3V/3.3V/3.3V); no adjustable thresholds; no watchdog; 20-pin TSSOP | Limited to identical-rail systems; lacks margin enable and capacitor-adjustable timeout | Choose only for simple 3.3V-only designs where cost is primary and feature set is minimal |
| ADM1085AKSZ-REEL7 | Single 3.3V supervisor with manual reset; no multi-rail capability; no watchdog; 5-pin TSOT | Cannot monitor more than one voltage; unsuitable for multivoltage ASIC/FPGA platforms | Use only for legacy board-level reset generation where quad monitoring is unnecessary |
Compared with TPS3307-33DGNR and ADM1085AKSZ-REEL7, the MAX16001BTE+ uniquely delivers four independently configurable voltage monitors, integrated watchdog with startup delay, and margin-enable functionality - making it the only option among the three suitable for modern multivoltage server and telecom infrastructure designs.
Availability
MAX16001BTE+ is available at Aetrix Electronics and suitable for server power management, industrial PLC controllers, enterprise storage arrays, and telecom baseband units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16001BTE+ 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, automotive, and communications applications.
The MAX16000–MAX16007 family was engineered specifically for multivoltage system supervision in high-reliability computing and infrastructure equipment, emphasizing wide temperature operation, low quiescent current, and flexible reset/watchdog configuration.
FAQ
What voltage thresholds does the MAX16001BTE+ monitor by default?
The MAX16001BTE+ monitors four voltages with factory-configured thresholds: IN1 = 3.3V, IN2 = adjustable (via external resistor divider), IN3 = adjustable, and IN4 = 1.8V. This specific variant (B suffix) assigns fixed thresholds to IN1 and IN4 while leaving IN2 and IN3 fully adjustable down to 0.4V - ideal for systems with custom or nonstandard supply rails alongside standard 3.3V/1.8V domains. The MAX16001BTE+ datasheet Table 1 confirms this configuration.
Does the MAX16001BTE+ include a watchdog timer, and how is it configured?
Yes, the MAX16001BTE+ integrates a watchdog timer with a typical timeout of 1.6s and a 54s startup delay after reset release. It is enabled by default and cleared on any rising or falling edge at the WDI pin. Leaving WDI unconnected disables the timer. The MAX16001BTE+ does not require external components for basic watchdog operation, and its leakage current (<400nA) ensures compatibility with low-power microcontroller GPIOs.
How is the reset timeout period set on the MAX16001BTE+?
The MAX16001BTE+ offers two reset timeout modes: internal fixed minimum (140ms) or capacitor-adjustable. To use the internal timeout, connect the SRT pin to VCC. To extend the timeout, connect a capacitor from SRT to GND; the period follows tRP (s) = 2.06 × 10⁶ × CSRT (F), yielding ~2.43ms with 100pF and ~3.92ms with 1500pF. This flexibility allows the MAX16001BTE+ to match diverse processor boot timing requirements without firmware changes.
What is the purpose of the MARGIN pin on the MAX16001BTE+?
The MARGIN pin on the MAX16001BTE+ is an active-low input that forces all outputs (RESET and OUT1–OUT4) into a high-impedance or deasserted state, regardless of monitored voltage conditions. This enables safe voltage margin testing during production or field calibration - for example, temporarily lowering a supply rail to verify system robustness without triggering unintended resets. The MAX16001BTE+ maintains this deasserted state as long as MARGIN is held low.
Is the MAX16001BTE+ qualified for automotive applications?
The MAX16001BTE+ is not AEC-Q100 qualified. Only the MAX16001ATE/V+ and MAX16001DTE/V+ variants carry AEC-Q100 Grade 0 qualification. The MAX16001BTE+ is rated for -40°C to +125°C operation and widely deployed in industrial and computing applications, but automotive-grade deployment requires explicit validation of the AEC-Q100-certified versions - not the MAX16001BTE+.
MAX16001BTE+ 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:
- 1.8V, 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:
- 16-TQFN (4x4)
MAX16001BTE+ FAQ
1.How can I place an order for MAX16001BTE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16001BTE+ 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 MAX16001BTE+ reliable?
The price and inventory of MAX16001BTE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16001BTE+ is usually 5 days.
3.What payment methods are accepted for MAX16001BTE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16001BTE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16001BTE+?
MAX16001BTE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16001BTE+ 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 MAX16001BTE+?
For technical support, including MAX16001BTE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16001BTE+ requirements.
6.How does Aetrix verify that MAX16001BTE+ is sourced from the original manufacturer or authorized distributors?
All MAX16001BTE+ 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 MAX16001BTE+ meets industry standards.
7.What is the process for return or replacement of MAX16001BTE+?
All MAX16001BTE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16001BTE+, 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 MAX16001BTE+ part is unused and in its original packaging.
Return procedure for MAX16001BTE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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