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Analog Devices Inc./Maxim Integrated MAX16058ATA16+T
- Part No.:
- MAX16058ATA16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA16+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,981
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Product details
Overview
MAX16058ATA16+T from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain RESET output, factory-trimmed 1.575V reset threshold, capacitor-adjustable reset timeout (14.18ms typical with 2700pF), and integrated watchdog timer supporting normal/extended modes. It monitors single-supply systems in battery-powered medical and portable electronics where supply voltage drops below threshold, manual reset occurs, or watchdog timeout expires.
For engineers reviewing the MAX16058ATA16+T datasheet, MAX16058ATA16+T pinout, MAX16058ATA16+T application, or MAX16058ATA16+T equivalent, this page delivers verified technical context, exact pin functions, real-world timing behavior, thermal performance data, and validated alternative options for automotive-grade nanoPower supervision.
Technical Context
The MAX16058ATA16+T implements a precision bandgap-based VCC monitor with ±2.5% threshold tolerance over –40°C to +125°C, coupled with two independent RC-timed circuits: one for reset timeout (SRT pin, 5.15×10⁶ × CSRT) and one for watchdog timeout (SWT pin, floor[CSWT × 5.15×10⁶ / 6.4ms] × 6.4ms + 3.2ms). Its WDS input selects 1× or 128× watchdog scaling without affecting reset timing.
It features guaranteed RESET validity down to VCC = 1.1V, power-supply transient immunity up to 40µs at 100mV overdrive, and active-low open-drain RESET output capable of sinking 50µA at 0.3V (VCC ≥ 1.0V) or 3.2mA at 0.4V (VCC ≥ 4.5V). The MR input accepts CMOS logic levels and triggers reset with ≤1µs pulse width.
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 medical sensors |
| Reset Threshold | 1.575V (factory-trimmed, ±2.5% over temperature) - matches low-voltage microcontrollers like ARM Cortex-M0+ |
| Reset Timeout | 14.18ms typical with 2700pF on SRT - ensures reliable µP initialization after brownout recovery |
| Watchdog Timeout | 6.4ms typical base period (tWDPER), scalable to 819.2ms via WDS - supports firmware service intervals from milliseconds to seconds |
| Operating Range | VCC = 1.1V to 5.5V, TA = –40°C to +125°C - qualified for under-hood automotive and industrial metering |
| Output Type | Open-drain RESET - allows level-shifting to separate logic domains (e.g., 1.8V µP monitoring 3.3V rail) |
| Input Leakage | ±100nA on MR, WDI, WDS - minimizes capacitor discharge error in long watchdog timing |
Pinout & Package
MAX16058ATA16+T uses an 8-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected to GND per datasheet recommendation. Pin 1 is RESET (open-drain), Pin 2 is GND, Pin 3 is SWT (watchdog timeout capacitor input), Pin 4 is MR (manual reset input), Pin 5 is SRT (reset timeout capacitor input), Pin 6 is N.C., Pin 7 is VCC, and Pin 8 is WDS (watchdog select input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET (Pin 1) | Active-low open-drain reset output | Sinks current during reset assertion; requires external pullup; valid down to VCC = 1.1V |
| GND (Pin 2) | Ground reference | Common return for all internal circuits and external capacitors (SRT, SWT) |
| SWT (Pin 3) | Watchdog timeout capacitor input | Connects to GND via CSWT (2275pF–0.54µF); sampled after RESET deassertion to set tWD |
| MR (Pin 4) | Manual reset input | Logic-low pulse ≥1µs asserts reset; no internal pullup - must tie to VCC if unused |
| SRT (Pin 5) | Reset timeout capacitor input | Connects to GND via CSRT (39pF–4.7µF); sets tRP = 5.15×10⁶ × CSRT (seconds) |
| N.C. (Pin 6) | No connection | Not internally bonded - leave unconnected or float |
| VCC (Pin 7) | Supply voltage input | Monitored rail (1.1V–5.5V); bypass with 0.1µF ceramic capacitor to GND |
| WDS (Pin 8) | Watchdog select input | GND = normal mode (tWD), VCC = extended mode (tWD × 128); clears watchdog timer on transition |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year battery life in glucose monitors using CR2032 cells |
| Capacitor-adjustable tRP | 14.18ms reset timeout with 2700pF provides deterministic µP startup window across temperature |
| Watchdog capacitor open detect | SWT < 470pF forces continuous RESET assertion - detects PCB assembly defects or capacitor failure |
| Transient immunity | Immune to 40µs VCC glitches at 100mV overdrive - eliminates false resets in noisy automotive environments |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - ensures safe shutdown before µP enters undefined state |
Applications
| Glucose Monitoring Systems | Patient Vital Sign Monitors |
|---|---|
Use Scenario: Continuous glucose sensing in wearable patch pumps requiring low-power operation and fault-safe shutdown during battery depletion. IC Role / Device Role / Timing Role: Supervises 1.8V µP supply; asserts RESET when VCC drops below 1.575V or watchdog expires due to firmware hang. Use Value: Prevents erroneous insulin dosing by guaranteeing µP reset before supply falls below operational minimum. | Use Scenario: Portable ECG and SpO₂ devices powered by coin-cell batteries with strict 10-year shelf-life requirements. IC Role / Device Role / Timing Role: Provides capacitor-programmable reset timeout (14.18ms) and 128× extended watchdog (819ms) for firmware health checks. Use Value: Enables 125nA quiescent current - reduces annual battery drain to <0.4mAh, preserving shelf life. |
| Smart Utility Meters | HVAC Remote Sensors |
Use Scenario: Battery-operated gas/water meters deployed in uncontrolled outdoor environments (-40°C to +125°C). IC Role / Device Role / Timing Role: Monitors 3.3V system rail; uses open-drain RESET to interface with isolated µP domain while maintaining transient immunity. Use Value: Guaranteed operation across full automotive temperature range eliminates field failures due to cold-start brownouts. | Use Scenario: Wireless temperature/humidity sensors in commercial HVAC ducts with intermittent solar charging. IC Role / Device Role / Timing Role: Implements manual reset via pushbutton (MR input) and watchdog timeout scaling (WDS) to match variable firmware execution time. Use Value: WDS pin allows dynamic watchdog extension during deep-sleep cycles without changing hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA16+T | Push-pull RESET output; identical reset threshold (1.575V), watchdog, and timing specs | Requires no external pullup; unsuitable where level-shifting or wired-OR reset buses are needed | Select when driving CMOS inputs directly and minimizing BOM count |
| TPS3808G15DBVR | Fixed 1.5V reset threshold; 1.8µA typical ICC; no watchdog; SOT-23-6 package | Lacks capacitor-adjustable timing and watchdog - limited to basic power-on reset only | Select for cost-sensitive, non-watchdog applications where 1.5V threshold suffices |
Compared with MAX16056ATA16+T, the MAX16058ATA16+T offers open-drain flexibility for multi-rail systems but requires a pullup resistor; versus TPS3808G15DBVR, it delivers 14× lower supply current and full watchdog functionality at the cost of higher design complexity.
Availability
MAX16058ATA16+T is available at Aetrix Electronics and suitable for glucose monitors, patient vital sign equipment, smart utility meters, and HVAC remote sensors requiring stable component supply across automotive temperature grades and long-term production continuity.
Supply support for MAX16058ATA16+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 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, high-reliability supervision in battery-critical medical, automotive, and industrial IoT endpoints - emphasizing nanoPower operation, wide temperature resilience, and configurable timing.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA16+T?
The MAX16058ATA16+T has a factory-trimmed reset threshold of 1.575V (minimum 1.536V, maximum 1.614V at +25°C), with ±2.5% tolerance over the full –40°C to +125°C operating range. This value corresponds to the "16" suffix in the part number per Table 1 of the datasheet, and is laser-trimmed during production to ensure accuracy without external calibration.
Does MAX16058ATA16+T support watchdog timer disable functionality?
Yes, MAX16058ATA16+T supports watchdog disable by connecting the SWT pin directly to GND. When SWT is grounded, the watchdog circuit is disabled and no reset pulses occur due to watchdog timeout. This is confirmed in the Pin Description section and Applications Information of the datasheet, and does not require WDS or WDI manipulation.
What is the recommended capacitor value for achieving a 14.18ms reset timeout with MAX16058ATA16+T?
The recommended capacitor value for a 14.18ms reset timeout with MAX16058ATA16+T is 2700pF on the SRT pin, as explicitly listed in Table 2 of the datasheet. This value assumes a low-leakage ceramic capacitor (e.g., X7R dielectric) and yields tRP = 5.15 × 10⁶ × 2700 × 10⁻¹² = 0.01418 seconds. Deviations outside 39pF–4.7µF may cause timing inaccuracy or failure.
Can MAX16058ATA16+T operate reliably at VCC = 1.2V?
Yes, MAX16058ATA16+T operates reliably at VCC = 1.2V: its absolute minimum supply voltage is 1.1V, and electrical characteristics are specified down to 1.2V at –40°C to 0°C ambient. At this voltage, supply current remains ≤210nA (typical), reset threshold is maintained within ±2.5%, and RESET output remains valid - enabling use with sub-1.8V microcontrollers in ultra-low-power designs.
What package type and dimensions does MAX16058ATA16+T use?
MAX16058ATA16+T uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm × 0.8mm, with thermal pad (EP) intended for solder connection to GND. This is confirmed in the Ordering Information table and Package Information section, and matches the "T833-2" package code with land pattern "90-0059" per Analog Devices' package database.
MAX16058ATA16+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- 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)
MAX16058ATA16+T FAQ
1.How can I place an order for MAX16058ATA16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA16+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 MAX16058ATA16+T reliable?
The price and inventory of MAX16058ATA16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA16+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA16+T?
MAX16058ATA16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA16+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 MAX16058ATA16+T?
For technical support, including MAX16058ATA16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA16+T requirements.
6.How does Aetrix verify that MAX16058ATA16+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA16+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 MAX16058ATA16+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA16+T?
All MAX16058ATA16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA16+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 MAX16058ATA16+T part is unused and in its original packaging.
Return procedure for MAX16058ATA16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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