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Analog Devices Inc./Maxim Integrated MAX16003ETE+T
- Part No.:
- MAX16003ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16003ETE+T.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,214
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Product details
Overview
MAX16003ETE+T from Maxim Integrated is a low-voltage, hex-voltage microprocessor supervisor IC in a 16-pin TQFN (4mm × 4mm) package. It monitors six independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V), provides an active-low RESET output asserting on any undervoltage or manual reset, features a 1.6s typical watchdog timeout, and operates across –40°C to +125°C for industrial server power sequencing.
For engineers reviewing the MAX16003ETE+T datasheet, MAX16003ETE+T pinout, MAX16003ETE+T application, or MAX16003ETE+T equivalent, key selection criteria include its six-channel monitoring capability, capacitor-adjustable 140ms–280ms reset timeout, internal 30µA pullups eliminating external resistors, tolerance-selectable (5%/10%) thresholds, and integrated margin enable for production test validation.
Technical Context
The MAX16003ETE+T implements independent voltage monitoring per channel with hysteresis (0.5% of threshold), open-drain outputs with internal 30µA pullups, and a shared active-low RESET output that asserts when any monitored rail falls below its programmed threshold or MR is pulled low. Its watchdog timer clears on WDI edge transitions and defaults to 1.6s timeout with no startup delay.
Reset assertion is sustained for a minimum 140ms after all voltages recover and MR deasserts; timeout is extended via external capacitor on SRT pin. Threshold accuracy is specified at ±1.5% over temperature for fixed rails and ±2.5% for adjustable inputs, with guaranteed correct logic state down to VCC = 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Channels | 6 independent voltage inputs (IN1–IN6), configurable for fixed (3.3V/2.5V/1.8V) or adjustable (0.4V min) thresholds |
| RESET Timeout | 140ms minimum (SRT = VCC); adjustable up to 280ms with 1500pF capacitor; ensures reliable system hold-off during brownout recovery |
| Watchdog Timeout | 1.6s typical (1.12–2.40s range); no startup delay; resets on missing WDI edge - critical for firmware hang detection |
| Supply Range | VCC = 1.0V to 5.5V; functional operation guaranteed down to 1V - supports ultra-low-power and multirail systems |
| Operating Temp | –40°C to +125°C; qualified for automotive-grade thermal environments without derating |
| Quiescent Current | 45–70µA at VCC = 3.3V/5V; enables always-on supervision in battery-backed or energy-sensitive applications |
| Input Threshold Accuracy | ±1.5% (fixed rails), ±2.5% (adjustable); ensures precise power-rail qualification before processor release |
Pinout & Package
MAX16003ETE+T uses a 16-pin TQFN package (4mm × 4mm, exposed pad), pin-compatible with other MAX16003 variants. The exposed pad (EP) must be soldered to PCB ground for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 13–15 | IN4, IN5, IN6, IN1, IN2 | Monitored voltage inputs; accept 0.4V–5.5V; each has dedicated threshold comparator and hysteresis |
| 3, 10, 11 | IN3, OUT3, OUT2 | Third monitored input; independent open-drain outputs for per-rail status indication (30µA internal pullup) |
| 4, 5 | GND, VCC | Ground reference and unmonitored supply input; requires 0.1µF bypass capacitor at VCC |
| 6–8 | OUT4, OUT5, OUT6 | Open-drain outputs tied to respective IN4–IN6; assert low on undervoltage - used for discrete rail fault signaling |
| 9, 12, 16 | MARGIN, MR, TOL | MARGIN disables all outputs during margin testing; MR forces RESET assertion; TOL selects 5% or 10% threshold tolerance |
| 13–16 (reused) | SRT, RESET, WDI, WDO | SRT sets reset timeout; RESET is shared active-low system reset; WDI feeds watchdog; WDO is dedicated watchdog output (MAX16003 only has RESET, not WDO) |
Key Features
| Feature | Design Value |
|---|---|
| Independent per-rail monitoring | Enables granular power-good qualification for complex ASIC/FPGA supplies - avoids single-point failure masking |
| Capacitor-adjustable reset timeout | Supports design-specific hold times (140ms–280ms) without firmware dependency or external timing ICs |
| Internal 30µA pullups on all outputs | Eliminates 6 external pullup resistors - reduces BOM count, board area, and layout complexity |
| Manual reset and margin enable inputs | Allows hardware-triggered system reset and controlled deassertion during production burn-in or voltage margining |
| 5%/10% threshold tolerance selection | Permits optimization for tight-tolerance rails (e.g., core logic) vs. relaxed rails (e.g., I/O) using same footprint |
Applications
| Storage Equipment | Servers |
|---|---|
Use Scenario: Monitoring multiple voltage rails (12V, 5V, 3.3V, 1.8V, 1.2V, 0.9V) in NVMe SSD controllers and RAID backplanes. IC Role / Device Role / Timing Role: Hex-voltage supervisor providing synchronized RESET assertion and per-rail fault reporting via open-drain outputs. Use Value: Prevents corrupted writes during power instability by holding host interface reset until all rails stabilize within ±5%. | Use Scenario: Power sequencing and health monitoring for dual-socket Xeon platforms with >10 supply domains. IC Role / Device Role / Timing Role: Centralized supervisory hub coordinating CPU, memory, PCIe, and BMC power-up sequences with watchdog oversight. Use Value: Guarantees deterministic boot order and detects firmware hangs via 1.6s watchdog - reducing unplanned downtime. |
| Networking Equipment | Multivoltage ASICs |
Use Scenario: Supervising line-card power in 10G/25G Ethernet switches with mixed 3.3V, 2.5V, 1.8V, and 1.0V rails. IC Role / Device Role / Timing Role: Six-channel monitor enforcing strict power-good windows before enabling SerDes and packet processors. Use Value: Avoids signal integrity failures by ensuring clean power delivery prior to high-speed transceiver initialization. | Use Scenario: Validating supply stability during ASIC bring-up and production test across core, I/O, PLL, and memory interface rails. IC Role / Device Role / Timing Role: Margin-enable-capable supervisor performing automated voltage stress tests with real-time output deassertion. Use Value: Accelerates yield analysis by identifying marginal power domains without modifying test software or hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16004ETE+T | Same 6-input architecture, but includes independent watchdog output (WDO) instead of shared RESET-only behavior | Required where separate watchdog fault signaling (e.g., to FPGA logic) is needed alongside system RESET | Select MAX16004ETE+T only if WDO functionality is explicitly required; otherwise MAX16003ETE+T offers identical supervision with simpler reset coordination |
| TPS3808G33DBVR | Single-supply supervisor (3.3V only), no multi-rail monitoring, no watchdog, smaller SOT-23-6 package | Applicable only for basic single-rail reset generation - lacks hex monitoring, margin enable, or adjustable timeout | Choose TPS3808G33DBVR for cost-sensitive, space-constrained designs needing only 3.3V reset; not a functional substitute for MAX16003ETE+T's multirail scope |
Compared with MAX16004ETE+T, MAX16003ETE+T simplifies system-level reset coordination by using a single RESET output instead of separate WDO, while retaining full six-rail monitoring and margin enable - making it optimal for consolidated reset architectures without need for independent watchdog signaling.
Availability
MAX16003ETE+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 MAX16003ETE+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 high-reliability computing infrastructure, delivering scalable channel counts (4/6/8), wide input ranges, and robust watchdog functionality in compact TQFN packages.
FAQ
What is the function of the MARGIN pin on the MAX16003ETE+T?
The MARGIN pin on the MAX16003ETE+T is an active-low manual deassert input. When pulled low, it forces all output signals (including RESET and individual OUTx lines) into a high-impedance or high state, regardless of monitored voltage conditions. This enables controlled deactivation during voltage margin testing, allowing engineers to verify system behavior under intentional rail stress without triggering false resets. The MAX16003ETE+T uses this feature to support production test automation and reliability validation.
Does the MAX16003ETE+T support adjustable voltage thresholds?
Yes, the MAX16003ETE+T supports adjustable thresholds on all six monitored inputs (IN1–IN6). Each input can be configured for fixed thresholds (e.g., 3.3V, 2.5V, 1.8V) or set to monitor voltages as low as 0.4V using external resistor dividers. Threshold accuracy is ±2.5% over temperature for adjustable configurations, and the TOL pin allows selection between 5% or 10% tolerance bands - giving designers flexibility to match specific rail tolerances without changing the MAX16003ETE+T footprint.
What is the maximum operating temperature for the MAX16003ETE+T?
The MAX16003ETE+T is fully specified to operate from –40°C to +125°C ambient temperature. Its electrical characteristics, including reset timeout, threshold accuracy, and watchdog timing, are guaranteed across this full industrial temperature range. The device uses a thermally enhanced 16-pin TQFN package with an exposed pad (EP) internally connected to GND, which must be soldered to the PCB ground plane to maintain junction temperature within the absolute maximum limit of +150°C under continuous operation.
Can the reset timeout period of the MAX16003ETE+T be adjusted externally?
Yes, the reset timeout period of the MAX16003ETE+T is externally adjustable via a capacitor connected between the SRT pin and GND. The timeout follows the formula: Reset Timeout (s) = 2.06 × 10⁶ Ω × CSRT (F). With a 1500pF capacitor, the timeout is 2.43–3.92ms; with no capacitor (SRT open), it defaults to 50µs; and connecting SRT to VCC yields the minimum guaranteed 140ms. This flexibility allows designers to tailor hold time precisely to system requirements without firmware changes or additional components beyond the capacitor.
How does the watchdog timer behave on the MAX16003ETE+T?
The MAX16003ETE+T watchdog timer has a typical timeout period of 1.6s (1.12–2.40s range) and clears on any rising or falling edge at the WDI pin. Unlike some variants, it does not include a startup delay - meaning the first watchdog window begins immediately after power-up or reset release. If WDI remains static beyond the timeout, the shared RESET output is asserted. Leaving WDI unconnected disables the watchdog. This behavior ensures rapid detection of firmware lockups while avoiding spurious resets during normal operation.
MAX16003ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN 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:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX16003ETE+T FAQ
1.How can I place an order for MAX16003ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16003ETE+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 MAX16003ETE+T reliable?
The price and inventory of MAX16003ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16003ETE+T is usually 5 days.
3.What payment methods are accepted for MAX16003ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16003ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16003ETE+T?
MAX16003ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16003ETE+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 MAX16003ETE+T?
For technical support, including MAX16003ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16003ETE+T requirements.
6.How does Aetrix verify that MAX16003ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX16003ETE+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 MAX16003ETE+T meets industry standards.
7.What is the process for return or replacement of MAX16003ETE+T?
All MAX16003ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16003ETE+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 MAX16003ETE+T part is unused and in its original packaging.
Return procedure for MAX16003ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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