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Analog Devices Inc./Maxim Integrated MAX16058ATA29+
- Part No.:
- MAX16058ATA29+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA29+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,234
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Product details
Overview
MAX16058ATA29+ from Analog Devices is an ultra-low-power microprocessor supervisory IC with factory-trimmed 2.925V reset threshold, capacitor-adjustable reset timeout (14.18ms typical), and integrated watchdog timer supporting normal/extended modes. It features open-drain RESET output, 125nA typical supply current at 3.3V, and operates across -40°C to +125°C for automotive and portable medical electronics.
For engineers reviewing the MAX16058ATA29+ datasheet, MAX16058ATA29+ pinout, MAX16058ATA29+ application, or MAX16058ATA29+ equivalent, this page delivers verified technical context, real-world timing behavior, thermal performance in TDFN-EP package, and selection guidance against functionally comparable nanoPower supervisors.
Technical Context
The MAX16058ATA29+ implements a precision bandgap-based voltage monitor with ±2.5% threshold accuracy over temperature and 0.5% hysteresis. Its reset assertion is triggered by VCC falling below 2.925V, manual reset via MR input, or watchdog timeout expiration - all generating an active-low open-drain RESET signal held for capacitor-programmable duration.
Watchdog operation uses internal ramp-current charging of external SWT capacitor, sampled after RESET deassertion, with WDS pin selecting ×1 or ×128 timeout scaling. The device guarantees valid RESET down to VCC = 1.1V and exhibits immunity to transients ≤40µs at 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 2.925V (factory-trimmed, ±2.5% over -40°C to +125°C) |
| Supply Current | 125nA typical at 3.3V, -40°C to +125°C - enables multi-year battery life in always-on sensors |
| Reset Timeout Period | 14.18ms typical with 2700pF SRT capacitor - ensures reliable µP initialization after brownout recovery |
| Watchdog Timeout (Normal Mode) | 6.4ms typical clock period; scalable to 296s max with SWT capacitor - supports diverse firmware execution cycles |
| Operating Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial metering environments |
| RESET Output Type | Open-drain - allows level-shifting to logic supplies up to 5.5V and flexible pull-up configuration |
| VCC Operating Range | 1.1V to 5.5V - supports single-cell Li-ion, coin-cell, and multi-rail system monitoring |
Pinout & Package
MAX16058ATA29+ is housed in an 8-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) for thermal enhancement. Pin 1 is marked with dot; EP must be connected to GND for optimal thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Open-drain reset output | Asserts low during VCC undervoltage, MR activation, or watchdog fault; requires external pull-up for logic-level compatibility |
| 2 GND | Ground reference | Primary return path for internal circuitry and SRT/SWT capacitor discharge |
| 3 SWT | Watchdog timeout capacitor input | Connects to GND via CSWT to set base watchdog period; grounded to disable 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 to define reset hold time; supports 39pF–4.7µF range |
| 6 WDI | Watchdog input | Falling edge resets watchdog timer; minimum pulse width 150ns - tolerates noisy µP I/O |
| 7 WDS | Watchdog select input | GND = normal mode (×1), VCC = extended mode (×128); transition clears watchdog counter |
| 8 VCC | Supply voltage input | Monitored rail and power source; bypass with 0.1µF ceramic capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 125nA supply current | Enables >10-year operation on CR2032 coin cell in intermittent-sensing applications |
| Capacitor-adjustable reset timeout | Supports precise µP boot timing from 10.5ms to 2.4s using standard ceramic capacitors |
| Watchdog timer with ×128 scaling | Extends timeout range to 217s with 0.33µF SWT capacitor - eliminates need for external timing ICs |
| Watchdog capacitor open-detect | Flags broken SWT connections by asserting continuous RESET - improves field-reliability diagnostics |
| Guaranteed RESET validity down to 1.1V | Ensures deterministic reset behavior during deep brownout conditions common in battery-powered systems |
| Power-supply transient immunity | Rejects 40µs/100mV glitches - reduces false resets in electrically noisy automotive environments |
Applications
| Portable Glucose Monitors | Battery-Powered HVAC Sensors |
|---|---|
Use Scenario: Continuous glucose sensing with periodic wireless transmission and sleep/wake cycling. IC Role / Device Role / Timing Role: Supervises main MCU supply and triggers watchdog reset if firmware hangs during BLE advertising interval. Use Value: 125nA quiescent current extends disposable sensor life beyond 90 days; adjustable tWD aligns precisely with 250ms firmware service window. |
Use Scenario: Wireless temperature/humidity node operating on two AA alkaline cells in commercial buildings. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output and asserts RESET during cold-start voltage ramp to prevent MCU lockup. Use Value: 2.925V threshold matches LDO dropout spec; 14.18ms tRP ensures full ADC calibration completes before firmware executes. |
| Automotive Cabin Air Quality Modules | Industrial Portable Meters |
Use Scenario: CO₂/VOC sensor module mounted near vehicle HVAC ducts with wide ambient temperature swings. IC Role / Device Role / Timing Role: Provides reset supervision across -40°C to +125°C and detects µP freeze during CAN bus arbitration failures. Use Value: Guaranteed operation at 125°C junction temperature; WDS-controlled ×128 watchdog accommodates long diagnostic routines without false triggers. |
Use Scenario: Handheld multimeter with auto-ranging, data logging, and USB-C charging. IC Role / Device Role / Timing Role: Manages power sequencing between battery, charger IC, and MCU - using RESET to gate LDO enable. Use Value: Open-drain RESET interfaces directly to 5V USB-C VBUS for power-good signaling; 1.1V VCC min enables reset assertion even during battery end-of-life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA29+ | Push-pull RESET output; identical threshold, timing, and watchdog specs | Requires no external pull-up; unsuitable where level-shifting or wired-OR is needed | Select when driving CMOS inputs directly and minimizing BOM count |
| TPS3808G33DBVR | Fixed 3.3V threshold; 1.4µA supply current; no watchdog; SOT-23-6 package | Lacks programmable timing and fault detection; higher ICC limits battery life | Choose for cost-sensitive, non-watchdog applications with stable 3.3V rails |
Compared with MAX16056ATA29+, the push-pull variant simplifies interface but forfeits level-shifting flexibility; versus TPS3808G33DBVR, MAX16058ATA29+ delivers 11× lower ICC and full watchdog capability at the cost of larger footprint and design complexity.
Availability
MAX16058ATA29+ is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin sensors, and industrial battery-powered meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16058ATA29+ 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 technologies, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power system supervision in space-constrained, battery-critical applications - emphasizing nanoamp ICC, capacitor-programmable timing, and robust operation across automotive temperature extremes.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA29+?
The MAX16058ATA29+ has a factory-trimmed reset threshold voltage of 2.925V, with ±2.5% tolerance over the full -40°C to +125°C operating temperature range. This value is confirmed in Table 1 of the datasheet under suffix "29", and applies specifically to the MAX16058ATA29+ variant - not to other suffixes or family members like MAX16056 or MAX16059.
Does MAX16058ATA29+ include a watchdog timer, and how is it configured?
Yes, MAX16058ATA29+ includes a configurable watchdog timer. It uses the SWT pin for capacitor-based timeout setting and the WDS pin to select normal (×1) or extended (×128) mode. The WDI pin accepts falling-edge pulses to reset the timer. This functionality is exclusive to MAX16056/MAX16058 variants - MAX16057/MAX16059 lack watchdog capability.
What package type and dimensions does MAX16058ATA29+ use?
MAX16058ATA29+ is packaged in an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) measuring 3mm × 3mm × 0.8mm. The exposed pad (EP) must be soldered to a GND plane for thermal and electrical performance. This package is distinct from the 6-pin TDFN used by MAX16057/MAX16059 variants and is specified in Analog Devices' land pattern 90-0059.
How is the reset timeout period set for MAX16058ATA29+?
The reset timeout period for MAX16058ATA29+ is set by connecting a capacitor (CSRT) between the SRT pin and GND. With CSRT = 2700pF, the typical timeout is 14.18ms. The relationship is linear: tRP = 5.15 × 10⁶ × CSRT (seconds). Ceramic X7R capacitors from 39pF to 4.7µF are supported - enabling timeouts from ~10.5ms to ~2.4s.
What is the supply current specification for MAX16058ATA29+ across temperature and voltage?
MAX16058ATA29+ draws 125nA typical supply current at VCC = 3.3V and TA = -40°C to +125°C. At VCC = 1.8V, ICC remains 125nA typical; at VCC = 5.0V and TA = -40°C to +125°C, it rises to 142nA typical. These values are measured with reset deasserted and no load - confirming true nanoPower operation across its full rated range.
MAX16058ATA29+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.925V
- 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)
MAX16058ATA29+ FAQ
1.How can I place an order for MAX16058ATA29+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA29+ 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 MAX16058ATA29+ reliable?
The price and inventory of MAX16058ATA29+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA29+ is usually 5 days.
3.What payment methods are accepted for MAX16058ATA29+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA29+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA29+?
MAX16058ATA29+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA29+ 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 MAX16058ATA29+?
For technical support, including MAX16058ATA29+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA29+ requirements.
6.How does Aetrix verify that MAX16058ATA29+ is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA29+ 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 MAX16058ATA29+ meets industry standards.
7.What is the process for return or replacement of MAX16058ATA29+?
All MAX16058ATA29+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA29+, 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 MAX16058ATA29+ part is unused and in its original packaging.
Return procedure for MAX16058ATA29+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16058ATA29+ Tags
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MIC826SYMT-TR
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APX803L20-29SA-7
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