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Analog Devices Inc./Maxim Integrated MAX16058ATA28+
- Part No.:
- MAX16058ATA28+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA28+.pdf
- Description:
- IC SUPERVISOR OD 2.8V 8-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,319
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Product details
Overview
MAX16058ATA28+ from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain active-low RESET output, factory-trimmed 2.800V reset threshold (±2.5% over -40°C to +125°C), capacitor-adjustable reset timeout (10.5–17.0ms typical with 2700pF), and integrated watchdog timer with 128× extended mode. It monitors single-supply systems in battery-powered medical and portable electronics where supply current below 125nA (typ) and guaranteed RESET validity down to VCC = 1.1V are critical.
For engineers reviewing the MAX16058ATA28+ datasheet, MAX16058ATA28+ pinout, MAX16058ATA28+ application, or MAX16058ATA28+ equivalent, key selection factors include its 8-pin TDFN package with exposed pad, watchdog disable via SWT-to-GND, WDS-controlled 128× timeout extension, and compatibility with 1.1V–5.5V supply rails in automotive-grade (-40°C to +125°C) operation.
Technical Context
The MAX16058ATA28+ implements a precision bandgap-based voltage monitor with 0.5% hysteresis and a dual-ramp capacitor-timed architecture: SRT sets reset timeout via linear ramp current (210–240nA) charging to VRAMP1 (1.235V), while SWT and WDS jointly configure watchdog behavior-normal mode (tWD ≈ 6.4ms base period) or extended mode (×128). Sampling of SWT capacitance occurs after RESET deassertion, with automatic detection of open/short faults.
Its open-drain RESET output supports level-shifting across logic domains (0–5.5V pull-up), and MR input accepts CMOS-compatible signals with 1µs minimum pulse width and 200ns glitch rejection. The device guarantees functional reset assertion for VCC ≥ 1.1V and exhibits transient immunity up to 40µs for 100mV VCC excursions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 125nA typical at VCC = 1.8V, -40°C to +125°C - enables multi-year battery life in always-on sensor nodes |
| Reset Threshold | 2.800V ±2.5% over full temperature range - factory-trimmed for precise brownout detection without external resistors |
| Reset Timeout | 10.5–17.0ms typical with 2700pF on SRT - adjustable via low-leakage ceramic capacitor for µP power-up sequencing |
| Watchdog Base Period | 6.4ms typical (3.5–9.5ms over temp) - sets minimum software servicing interval before reset assertion |
| Operating Voltage | 1.1V to 5.5V - supports direct monitoring of Li-ion, coin-cell, and 3.3V/5V system rails |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial embedded applications |
| Output Type | Open-drain RESET - allows flexible pull-up to any logic rail (0–5.5V) and wired-OR fault signaling |
Pinout & Package
MAX16058ATA28+ uses an 8-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) that must be connected to GND for thermal and electrical performance. Pin 1 is marked by a dot; EP is electrically tied to GND internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, MR low, or watchdog timeout; requires external pull-up |
| 2 GND | Ground reference | Primary return path for all internal circuits and SRT/SWT capacitor discharge |
| 3 SWT | Watchdog timeout capacitor input | Connects to GND via CSWT (2275pF–0.54µF); open connection disables watchdog |
| 4 MR | Manual reset input | Active-low asynchronous trigger; no internal pull-up - must be tied to VCC if unused |
| 5 SRT | Reset timeout capacitor input | Connects to GND via CSRT (39pF–4.7µF); determines duration RESET stays asserted |
| 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 (tWD), VCC = extended mode (tWD × 128); state change clears timer |
| 8 VCC | Power supply input | Monitored rail (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year battery life in glucose monitors and smart meters |
| Capacitor-adjustable timing | SRT and SWT pins eliminate trimming resistors and allow field-programmable reset/watchdog periods |
| Watchdog fault detection | Detects µP lockup via WDI edge timing and provides 128× extended timeout for slow-boot firmware |
| Transient immunity | Rejects 40µs/100mV VCC glitches - prevents false resets in noisy automotive or industrial environments |
| Valid RESET at low VCC | Guaranteed RESET assertion down to VCC = 1.1V - ensures reliable boot sequencing even during deep brownout |
Applications
| Portable Medical Devices | Battery-Powered IoT Sensors |
|---|---|
Use Scenario: Glucose monitors and patient telemetry units operating from single CR2032 coin cells with multi-year shelf life requirements. IC Role / Device Role / Timing Role: Supervises VCC during cold-start and low-battery conditions; asserts RESET until stable µP clock and ADC references are established. Use Value: 125nA quiescent current extends battery life beyond 5 years; 2.800V threshold matches nominal coin-cell voltage decay profile. |
Use Scenario: Wireless environmental sensors deployed in remote locations, powered by primary lithium batteries. IC Role / Device Role / Timing Role: Provides fail-safe reset during RF transmission-induced supply droop and detects µP firmware hangs via WDI monitoring. Use Value: Open-drain RESET interfaces directly to 3.3V µP I/O; adjustable watchdog timeout accommodates variable sensor sampling intervals. |
| Automotive Body Electronics | Industrial Handheld Terminals |
Use Scenario: Door module controllers exposed to wide ambient temperatures (-40°C to +125°C) and load-dump transients. IC Role / Device Role / Timing Role: Monitors 5V system rail; asserts RESET during cranking-induced brownout and recovers automatically when VCC stabilizes. Use Value: -40°C to +125°C qualification and 40µs transient immunity prevent spurious resets during engine start cycles. |
Use Scenario: Ruggedized barcode scanners used in warehouses with frequent manual resets and ESD exposure. IC Role / Device Role / Timing Role: Accepts momentary MR switch presses to initiate controlled µP reboot; RESET remains asserted for configurable tRP. Use Value: MR input requires no external debounce; 1µs pulse width tolerance supports mechanical switch bounce filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA28+ | Push-pull RESET output; identical reset threshold, timing, and watchdog architecture | Requires no external pull-up; unsuitable for wired-OR or level-shifted reset buses | Select when driving CMOS inputs directly and board space permits larger drive strength |
| TLV809E28DBZR | Fixed 2.8V reset, no watchdog, 1.8–6V supply, 1.6µA ICC - higher current, no capacitor adjustment | Lacks programmable timing and fault detection; suited only for basic power-on reset | Choose for cost-sensitive, non-watchdog applications where 125nA ultra-low power is not required |
Compared with MAX16056ATA28+, the push-pull variant offers stronger drive but forfeits level-shifting flexibility; compared with TLV809E28DBZR, MAX16058ATA28+ delivers 13× lower supply current and adds watchdog supervision essential for safety-critical firmware recovery.
Availability
MAX16058ATA28+ is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, and automotive body electronics requiring stable component supply with guaranteed long-term availability and automotive-grade reliability.
Supply support for MAX16058ATA28+ 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 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 space-constrained, battery-operated systems demanding nanoscale current consumption and robust fault detection.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA28+?
The MAX16058ATA28+ has a factory-trimmed reset threshold of 2.800V, specified with ±1.5% tolerance 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 this exact part number - not to other variants like MAX16058ATA29+ (2.925V) or MAX16058ATA26+ (2.625V).
Does MAX16058ATA28+ include a watchdog timer, and how is it configured?
Yes, MAX16058ATA28+ includes a configurable watchdog timer. It is enabled by connecting a capacitor (CSWT) between SWT and GND, with timeout set via formula tWD = Floor[CSWT × 5.15×10⁶/6.4ms] × 6.4ms + 3.2ms. WDS selects mode: GND = normal, VCC = extended (×128). Connecting SWT to GND disables the watchdog function entirely.
What package type and dimensions does MAX16058ATA28+ use?
MAX16058ATA28+ uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm × 0.8mm. The exposed pad (EP) must be soldered to a GND plane for optimal thermal performance and electrical stability, per Analog Devices package drawing T833-2.
Can MAX16058ATA28+ operate with supply voltages below 1.8V?
Yes, MAX16058ATA28+ operates from 1.1V to 5.5V. Its 125nA typical supply current is specified down to VCC = 1.8V, and RESET assertion is guaranteed valid for VCC ≥ 1.1V - enabling use with partially discharged lithium batteries or low-voltage microcontrollers where other supervisors fail.
How does the manual reset (MR) input behave on MAX16058ATA28+?
The MR input on MAX16058ATA28+ is active-low with no internal pull-up. Driving MR low asserts RESET immediately, and RESET remains low for the full capacitor-adjustable timeout period (tRP) after MR returns high. Minimum MR pulse width is 1µs, and it rejects glitches shorter than 200ns - making it robust against switch bounce or EMI.
MAX16058ATA28+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- 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+ FAQ
1.How can I place an order for MAX16058ATA28+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA28+ 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+ reliable?
The price and inventory of MAX16058ATA28+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA28+ is usually 5 days.
3.What payment methods are accepted for MAX16058ATA28+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA28+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA28+?
MAX16058ATA28+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA28+ 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+?
For technical support, including MAX16058ATA28+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA28+ requirements.
6.How does Aetrix verify that MAX16058ATA28+ is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA28+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX16058ATA28+?
All MAX16058ATA28+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA28+, 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+ part is unused and in its original packaging.
Return procedure for MAX16058ATA28+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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