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Analog Devices Inc./Maxim Integrated MAX16004ETP+T
- Part No.:
- MAX16004ETP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
MAX16004ETP+T.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX16004ETP+T from Maxim Integrated is a low-voltage, hex-voltage microprocessor supervisor IC in a 19-pin TQFN (4mm × 4mm) package, monitoring six independent supply rails (IN1–IN6) with fixed thresholds for 3.3V, 2.5V, 1.8V, and adjustable thresholds down to 0.4V. It provides an active-low RESET output asserting on any undervoltage or manual reset event, with 140ms minimum timeout and watchdog timer (1.6s typical timeout). It is used in multivoltage server power sequencing and ASIC supervision.
For engineers reviewing the MAX16004ETP+T datasheet, MAX16004ETP+T pinout, MAX16004ETP+T application, or MAX16004ETP+T equivalent, key selection considerations include its six-rail monitoring capability, integrated watchdog with 54s startup delay, capacitor-adjustable reset timeout, open-drain outputs with internal 30µA pullups, and operation across –40°C to +125°C.
Technical Context
The MAX16004ETP+T implements independent voltage monitoring per input channel with hysteresis (0.5% of threshold), supports 5% or 10% threshold tolerance via TOL pin, and features a margin enable function to deassert all outputs during system margin testing. Its watchdog timer clears on any WDI edge and enters a 54s startup window before first timeout.
All six monitored inputs accept voltages from 0.4V to 5.5V; RESET asserts when any INx falls below its threshold or MR is pulled low; the SRT pin accepts an external capacitor to scale reset timeout from 140ms to >3s. Internal logic remains functional down to VCC = 1V, ensuring reliable supervision during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Voltages | 6 independent rails (IN1–IN6), configurable with fixed (3.3V/2.5V/1.8V) or adjustable (0.4V–5.5V) thresholds |
| Reset Timeout | 140ms minimum (SRT = VCC); adjustable up to ~3.9s using external capacitor (e.g., 1500pF → 3.09ms) |
| Watchdog Timeout | 1.6s typical (1.12–2.40s range); includes 54s startup delay after reset assertion |
| Supply Voltage Range | VCC = 1.0V to 5.5V; guaranteed correct logic state down to 1.0V |
| Operating Temperature | –40°C to +125°C, fully specified for automotive and industrial environments |
| Supply Current | 45–70µA at VCC = 2.0–5.5V, enabling ultra-low-power system supervision |
| Output Type | Open-drain RESET and six OUTx outputs, each with internal 30µA pullup to VCC (no external resistors required) |
Pinout & Package
MAX16004ETP+T is housed in a 19-pin, 4mm × 4mm, 0.5mm pitch TQFN package (package code T1944+4, outline 21-0139) with exposed thermal pad (EP) internally connected to GND. Pin 1 is marked by a dot; EP must be soldered to PCB ground plane for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN2 | Second monitored supply rail input; threshold set by part variant (e.g., 2.5V or adjustable) |
| 2 | IN1 | Primary monitored supply rail input; threshold set by part variant (e.g., 3.3V or adjustable) |
| 3 | GND | Ground reference for all analog and digital circuitry; connects to EP |
| 4 | VCC | Unmonitored bias supply (1.0–5.5V); requires 0.1µF bypass capacitor to GND |
| 5 | OUT2 | Open-drain output asserting low when IN2 falls below threshold; 30µA internal pullup |
| 6 | OUT1 | Open-drain output asserting low when IN1 falls below threshold; 30µA internal pullup |
| 7 | MARGIN | Active-low input to deassert all outputs (OUT1–OUT6, RESET) during margin testing |
| 8 | OUT3 | Open-drain output asserting low when IN3 falls below threshold; 30µA internal pullup |
| 9 | OUT4 | Open-drain output asserting low when IN4 falls below threshold; 30µA internal pullup |
| 10 | IN3 | Third monitored supply rail input; threshold set by part variant (e.g., adjustable) |
| 11 | IN4 | Fourth monitored supply rail input; threshold set by part variant (e.g., 1.8V or adjustable) |
| 12 | IN5 | Fifth monitored supply rail input; threshold set by part variant (e.g., adjustable) |
| 13 | IN6 | Sixth monitored supply rail input; threshold set by part variant (e.g., adjustable) |
| 14 | TOL | Selects 5% (TOL = GND) or 10% (TOL = VCC) input threshold tolerance |
| 15 | WDI | Watchdog timer input; edge-triggered reset; left open to disable timer |
| 16 | MR | Active-low manual reset input; pulls RESET low for full timeout after release |
| 17 | SRT | Set-reset timeout input; connect capacitor to GND to extend timeout beyond 140ms |
| 18 | RESET | Active-low system reset output asserting when any INx fails or MR is asserted |
| 19 | EP | Exposed thermal pad; electrically tied to GND; must be soldered to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Independent six-rail monitoring | Each IN1–IN6 has dedicated threshold detection and corresponding OUTx output, enabling granular fault isolation in complex power systems |
| Capacitor-adjustable reset timeout | SRT pin supports external capacitor (e.g., 100pF–1500pF) to scale timeout from 140ms to >3s without firmware changes |
| Integrated watchdog with startup delay | 1.6s timeout with 54s initial startup window prevents spurious resets during boot-up sequences |
| Internal 30µA pullups on all open-drain outputs | Eliminates need for 6 external pullup resistors, reducing BOM count and board area |
| Margin enable function | MARGIN pin forces all outputs high during production margin testing, simplifying test automation and validation |
| Wide VCC operating range (1.0–5.5V) | Ensures reliable reset generation even during deep brownout conditions down to 1.0V supply |
Applications
| Server Power Sequencing | Storage Equipment Supervision |
|---|---|
Use Scenario: Monitoring 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.2V rails in dual-CPU rack servers during cold start and hot-swap events. IC Role / Device Role / Timing Role: Hex-voltage supervisor providing synchronized RESET assertion only after all six rails stabilize within tolerance. Use Value: Prevents CPU lockup and PCIe link failures by enforcing strict power-good sequencing before host initialization. |
Use Scenario: Real-time monitoring of NVMe SSD auxiliary supplies (VPP, VCCQ, VDD, VDDIO, VCORE, VDD12) during thermal throttling and firmware updates. IC Role / Device Role / Timing Role: Independent OUTx outputs feed FPGA status registers; RESET coordinates controller reset upon any rail dropout. Use Value: Enables predictive failure logging and graceful shutdown before NAND corruption occurs. |
| Networking Equipment | Multivoltage ASIC Systems |
Use Scenario: Supervising 48V-to-12V intermediate bus, PoE PD rails (3.3V/5V), SerDes supplies (1.0V/1.2V), and management MCU (3.3V) in 10G Ethernet switches. IC Role / Device Role / Timing Role: RESET output gates power-on reset to switch fabric ASIC; WDI monitors management MCU heartbeat. Use Value: Guarantees deterministic recovery from transient surges on PoE lines without requiring software intervention. |
Use Scenario: Validating voltage stability across FPGA core (0.85V), I/O (1.8V), transceiver (1.2V), memory interface (1.35V), PLL (2.5V), and management (3.3V) rails. IC Role / Device Role / Timing Role: Six OUTx signals feed FPGA configuration logic; MARGIN pin enables automated voltage margining during production test. Use Value: Reduces test time by 40% versus sequential bench testing, with real-time pass/fail feedback per rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16003ETP+T | No watchdog timer; identical pinout and six-rail monitoring capability | Suitable where system-level watchdog is implemented externally or not required | Select when cost sensitivity outweighs need for integrated watchdog safety feature |
| TPS3808G33DBVR | Single-supply supervisor (3.3V only); no multi-rail monitoring or adjustable thresholds | Limited to single-rail applications; lacks MARGIN, TOL, WDI, and SRT functionality | Use only for simple 3.3V-only systems where hex monitoring is unnecessary |
Compared with MAX16003ETP+T and TPS3808G33DBVR, the MAX16004ETP+T uniquely combines six-rail supervision, adjustable reset timeout, and integrated watchdog with startup delay-enabling robust, self-contained power integrity management in space-constrained multivoltage systems without external components or firmware overhead.
Availability
MAX16004ETP+T is available at Aetrix Electronics and suitable for server power sequencing, storage equipment supervision, networking equipment, and multivoltage ASIC systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16004ETP+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, automotive, and computing applications.
The MAX16000–MAX16007 family was engineered specifically for multivoltage system supervision in servers, storage, and networking gear-delivering high channel count, wide input range, and robust timing control in miniature TQFN packages.
FAQ
What is the exact pin count and package type of MAX16004ETP+T?
The MAX16004ETP+T uses a 19-pin, 4mm × 4mm TQFN package with 0.5mm pitch and an exposed thermal pad (EP). Pin 1 is marked by a dot; EP is internally connected to GND and must be soldered to the PCB ground plane for thermal reliability. This differs from 12-, 16-, or 20-pin variants in the same family.
Does MAX16004ETP+T support adjustable reset timeout, and how is it configured?
Yes, MAX16004ETP+T supports adjustable reset timeout via the SRT pin. Connecting a capacitor from SRT to GND sets the timeout period using the formula tRP = 2.06 × 10⁶ Ω × CSRT (F). With CSRT = 1500pF, timeout is 3.09ms (typ); leaving SRT tied to VCC yields the minimum 140ms timeout. The MAX16004ETP+T datasheet specifies full min/typ/max tolerances across temperature.
How many voltage rails does MAX16004ETP+T monitor, and what are their threshold options?
The MAX16004ETP+T monitors six independent voltage rails (IN1–IN6). Thresholds are determined by the part variant suffix (e.g., "A" = 3.3V/2.5V/ADJ/1.8V/ADJ/ADJ); fixed options include 3.3V, 2.5V, 1.8V, and adjustable thresholds from 0.4V to 5.5V. Tolerance is selectable (5% or 10%) via the TOL pin, and hysteresis is 0.5% of threshold.
What is the watchdog timer behavior of MAX16004ETP+T, and how is it disabled?
The MAX16004ETP+T watchdog timer has a 1.6s typical timeout with a 54s startup delay after reset. It clears on any rising or falling edge at WDI. To disable it, leave the WDI pin unconnected-its open-state detector draws only 100nA, avoiding false triggers. No external pullup or pulldown is required.
Can MAX16004ETP+T operate reliably at low VCC, and what is its minimum functional supply voltage?
Yes, MAX16004ETP+T guarantees correct logic state down to VCC = 1.0V, as explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics tables. This ensures valid RESET assertion and output behavior during brownout conditions common in server and storage power systems, unlike many supervisors that fail below 1.8V.
MAX16004ETP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (4x4)
MAX16004ETP+T FAQ
1.How can I place an order for MAX16004ETP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16004ETP+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 MAX16004ETP+T reliable?
The price and inventory of MAX16004ETP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16004ETP+T is usually 5 days.
3.What payment methods are accepted for MAX16004ETP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16004ETP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16004ETP+T?
MAX16004ETP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16004ETP+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 MAX16004ETP+T?
For technical support, including MAX16004ETP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16004ETP+T requirements.
6.How does Aetrix verify that MAX16004ETP+T is sourced from the original manufacturer or authorized distributors?
All MAX16004ETP+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 MAX16004ETP+T meets industry standards.
7.What is the process for return or replacement of MAX16004ETP+T?
All MAX16004ETP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16004ETP+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 MAX16004ETP+T part is unused and in its original packaging.
Return procedure for MAX16004ETP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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