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Analog Devices Inc./Maxim Integrated MAX16058ATA28+T
- Part No.:
- MAX16058ATA28+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA28+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,446
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Product details
Overview
The MAX16058ATA28+T from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain RESET output, factory-trimmed 2.800V reset threshold (±2.5% over temperature), capacitor-adjustable reset timeout (10.5–17.0 ms typical), and integrated watchdog timer with 128× extended mode. It operates from 1.1V to 5.5V supply and draws only 125nA typical supply current at +25°C - enabling long-life battery operation in portable medical and metering devices.
For engineers reviewing the MAX16058ATA28+T datasheet, MAX16058ATA28+T pinout, MAX16058ATA28+T application, or MAX16058ATA28+T equivalent, key selection criteria include its automotive-grade (-40°C to +125°C) qualification, TDFN-8 package with exposed pad, watchdog disable capability via SWT-to-GND, and guaranteed RESET validity down to VCC = 1.1V.
Technical Context
This device implements a precision voltage monitor with hysteresis (0.5%), a capacitor-controlled reset timeout timer (tRP = 5.15 × 10⁶ × CSRT), and a dual-mode watchdog (normal/extended) using SWT ramp current (240nA typ) and threshold (1.235V typ). The WDS input selects 1× or 128× multiplication of the base watchdog period (6.4ms typ).
Its open-drain RESET output supports level-shifting across logic domains (0–5.5V pull-up), while MR input accepts CMOS-compatible signals with 1µs minimum pulse width and 200ns glitch rejection. Power-supply transient immunity is characterized up to 40µs for 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 2.800V (factory-trimmed, ±2.5% over -40°C to +125°C) - ensures reliable brownout detection for 2.8V nominal rails |
| Supply Current | 125nA typical at +25°C, ≤400nA max at +125°C - enables >10-year battery life in coin-cell-powered devices |
| Operating Voltage Range | 1.1V to 5.5V - supports single-cell Li-ion, multi-cell alkaline, and 3.3V/5V system rails |
| Reset Timeout Period | 10.5–17.0 ms (typ, with 2700pF SRT capacitor) - configurable via external capacitor for µP boot timing compliance |
| Watchdog Timeout (Normal) | 3.5–9.5 ms (typ 6.4ms) - adjustable via SWT capacitor; extends to 217s in 128× mode with 0.33µF |
| Output Type | Open-drain RESET - allows flexible pull-up to any logic rail (0–5.5V) and wired-OR system reset bus |
| Temperature Range | -40°C to +125°C - qualified for automotive and industrial under-hood/metering environments |
Pinout & Package
MAX16058ATA28+T is housed in a 3mm × 3mm, 0.75mm height, 8-pin TDFN-EP package with exposed pad (EP) that must be connected to GND for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain reset output | Asserts low during VCC undervoltage, manual reset, or watchdog timeout; requires external pull-up |
| 2 - GND | Ground reference | Primary return path for all internal circuits and EP connection point |
| 3 - SWT | Watchdog timeout capacitor input | Connects to GND via capacitor to set base watchdog period; grounding disables watchdog |
| 4 - MR | Manual reset input | Active-low asynchronous reset trigger; no internal pull-up - must be tied to VCC if unused |
| 5 - SRT | Reset timeout capacitor input | Connects to GND via capacitor to set reset deassertion delay after VCC recovery |
| 6 - WDI | Watchdog input | Falling edge resets watchdog timer; minimum pulse width 150ns; toggled by µP firmware |
| 7 - WDS | Watchdog select input | GND = normal mode (1×); VCC = extended mode (128×); state change clears watchdog counter |
| 8 - VCC | Power supply input | Monitored supply rail (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year operation on CR2032 coin cell in sleep-dominated systems |
| Capacitor-adjustable tRP & tWD | Two independent external capacitors (SRT, SWT) allow precise, board-level tuning of reset and watchdog timing without firmware changes |
| Watchdog disable via SWT | Connecting SWT directly to GND fully disables watchdog function - simplifies validation and debug phases |
| RESET validity to 1.1V | Guaranteed functional RESET output down to VCC = 1.1V prevents spurious release during deep brownout |
| Transient immunity | Withstands 40µs transients at 100mV overdrive - reduces false resets in noisy power-rail environments |
Applications
| Glucose Monitor | Patient Monitor |
|---|---|
|
Use Scenario: Portable handheld glucose meters powered by single AAA or coin cell, requiring reliable power-on reset and firmware watchdog supervision during infrequent but critical measurement cycles. IC Role / Device Role / Timing Role: Supervisory IC providing VCC brownout detection, manual reset via button, and programmable watchdog timeout aligned with sensor warm-up and ADC conversion sequence. Use Value: 125nA quiescent current extends battery life beyond 2 years; open-drain RESET interfaces cleanly with low-voltage µP I/O; 2.8V threshold matches common lithium primary cell discharge profile. |
Use Scenario: Battery-backed bedside patient monitors with ECG, SpO₂, and NIBP modules that must maintain data integrity and fail-safe behavior during AC power loss or battery swap. IC Role / Device Role / Timing Role: System-level reset supervisor asserting active-low signal to all subsystems upon VCC drop, with capacitor-tuned reset hold time ensuring full µP initialization before peripheral enable. Use Value: -40°C to +125°C rating supports wide ambient operating range; watchdog timer prevents lockup during long-duration clinical measurements; exposed-pad TDFN aids thermal management in sealed enclosures. |
| Smart Electricity Meter | HVAC Controller |
|
Use Scenario: ANSI C12.20-compliant smart meters deployed in outdoor utility cabinets, subject to wide temperature swings and conducted EMI on power lines. IC Role / Device Role / Timing Role: Primary reset generator monitoring main 3.3V rail, with MR input tied to tamper-detection switch and SWT capacitor configured for 10s watchdog timeout to catch firmware hangs during metrology processing. Use Value: 2.8V reset threshold avoids false triggers during line-sag events; transient immunity prevents spurious resets from switching noise; RoHS-compliant TDFN-8 meets environmental compliance requirements. |
Use Scenario: Programmable thermostats and zone controllers using ARM Cortex-M0+ µPs, operating from 24VAC-derived 3.3V rail with intermittent wireless communication bursts. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET during 24VAC dropout, with SRT capacitor set for 100ms timeout to ensure complete µP reboot before re-enabling RF stack and sensor polling. Use Value: Open-drain RESET allows shared reset bus across µP, RF transceiver, and analog front-end; 1.1V VCC min guarantee ensures reset remains asserted until stable 3.3V rail is restored. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA28+T | Push-pull RESET output; identical reset threshold, watchdog, and timing specs | Requires no external pull-up; not suitable for wired-OR reset buses or mixed-voltage systems | Select when system uses single-voltage domain and benefits from lower BOM count (no pull-up resistor) |
| TPS3808G33DBVR | Fixed 3.3V reset threshold; 1.6µA typical ICC; no watchdog; SOT-23-6 package | Lacks capacitor-adjustable timing and watchdog; suited for simpler, cost-sensitive designs without firmware supervision needs | Select when only basic power-on reset is required and ultra-low ICC is secondary to cost and footprint |
Compared with MAX16056ATA28+T and TPS3808G33DBVR, the MAX16058ATA28+T uniquely combines open-drain flexibility, nano-power operation, and field-configurable watchdog - making it optimal for battery-critical, multi-rail, or safety-monitored embedded systems where timing adaptability and interface compatibility are essential.
Availability
MAX16058ATA28+T is available at Aetrix Electronics and suitable for portable medical devices, smart metering, HVAC controls, and industrial IoT edge nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16058ATA28+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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power supervisory functions in battery-operated and automotive-grade applications - emphasizing nanoscale current consumption, wide temperature operation, and field-programmable timing without firmware dependency.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA28+T?
The MAX16058ATA28+T has a factory-trimmed reset threshold voltage of 2.800V, with tolerance of ±1.5% at +25°C and ±2.5% over the full -40°C to +125°C operating temperature range. This value is confirmed in Table 1 of the datasheet under suffix "28", and applies exclusively to the MAX16058ATA28+T variant.
Does MAX16058ATA28+T support watchdog timer disable functionality?
Yes, the MAX16058ATA28+T supports watchdog disable by connecting the SWT pin directly to GND. When SWT is grounded, the watchdog timer function is fully disabled and no reset pulses are generated due to watchdog timeout - a feature explicitly documented in the Pin Description and Detailed Description sections of the datasheet.
What package type and dimensions does MAX16058ATA28+T use?
The MAX16058ATA28+T uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm with 0.75mm maximum height. The exposed pad (EP) must be soldered to GND for optimal thermal performance and electrical stability, per the Package Information section and Typical Operating Circuit diagram.
Can MAX16058ATA28+T operate reliably below 1.8V supply voltage?
Yes, the MAX16058ATA28+T is fully specified from 1.1V to 5.5V supply voltage. Its 125nA typical supply current and guaranteed RESET validity down to VCC = 1.1V make it suitable for single-cell LiFePO₄ (2.5–3.6V), alkaline (0.9–1.5V per cell), and emerging low-voltage energy harvesting systems - all confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables.
How is the reset timeout period adjusted on MAX16058ATA28+T?
The reset timeout period (tRP) on MAX16058ATA28+T is adjusted by connecting an external capacitor (CSRT) between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (tRP in seconds, CSRT in farads); for example, a 2700pF capacitor yields 14.18ms typical timeout. Ceramic X7R capacitors are recommended for low leakage and temperature stability.
MAX16058ATA28+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.8V
- 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:
- 8-TDFN (3x3)
MAX16058ATA28+T FAQ
1.How can I place an order for MAX16058ATA28+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA28+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 MAX16058ATA28+T reliable?
The price and inventory of MAX16058ATA28+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA28+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA28+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA28+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA28+T?
MAX16058ATA28+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA28+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 MAX16058ATA28+T?
For technical support, including MAX16058ATA28+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA28+T requirements.
6.How does Aetrix verify that MAX16058ATA28+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA28+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 MAX16058ATA28+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA28+T?
All MAX16058ATA28+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA28+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 MAX16058ATA28+T part is unused and in its original packaging.
Return procedure for MAX16058ATA28+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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