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Analog Devices Inc./Maxim Integrated MAX16058ATA29+T
- Part No.:
- MAX16058ATA29+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA29+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,345
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Product details
Overview
MAX16058ATA29+T from Analog Devices is an ultra-low-power microprocessor supervisory circuit with open-drain RESET output, factory-trimmed 2.925V reset threshold (±2.5% over -40°C to +125°C), capacitor-adjustable reset timeout (10.5–17.0 ms 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 MAX16058ATA29+T datasheet, MAX16058ATA29+T pinout, MAX16058ATA29+T application, or MAX16058ATA29+T equivalent, key selection criteria include its 8-pin TDFN-EP package, watchdog disable capability via SWT-to-GND, WDS-controlled timeout scaling, manual-reset input with 250ns delay, and transient immunity supporting VCC glitches ≤40µs at 100mV overdrive.
Technical Context
The MAX16058ATA29+T implements a precision voltage monitor with hysteresis (0.5%) and dual ramp-based timing circuits: SRT pin controls reset timeout using a 5.15×10⁶ × CSRT formula, while SWT and WDS jointly configure watchdog timeout (normal or 128× extended). Its BiCMOS process enables 125nA typical supply current across 1.1V–5.5V VCC and full automotive temperature range (-40°C to +125°C).
RESET assertion occurs on VCC drop below 2.925V, MR low, or watchdog timeout; deassertion follows adjustable tRP after VCC recovery. The open-drain output supports level-shifting up to 5.5V, and internal watchdog sampling of SWT capacitance occurs post-RESET high, with automatic disable for CSWT < 470pF or > 0.47µF.
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 | 2.925V ±2.5% over temperature - factory-trimmed for precise brownout detection without external resistors |
| Reset Timeout | 10.5–17.0ms typical with 2700pF on SRT - configurable to match µP power-up sequence requirements |
| Watchdog Timeout | 5–9.5ms base period (TA = -40°C to +125°C), scalable ×128 via WDS - supports flexible firmware watchdog servicing intervals |
| Operating Voltage | 1.1V to 5.5V - guarantees valid RESET assertion even during deep brownout conditions |
| Temperature Range | -40°C to +125°C - fully specified for automotive and industrial embedded applications |
| Output Type | Open-drain RESET - allows level-shifting to higher logic rails and wired-OR configurations |
Pinout & Package
MAX16058ATA29+T is housed in a 3mm × 3mm, 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 on VCC fault, MR low, or watchdog timeout; requires external pullup for logic-high state |
| 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 pullup - must be tied to VCC if unused |
| 5: SRT | Reset timeout capacitor input | Connects to GND via capacitor to set reset pulse duration; determines tRP = 5.15×10⁶ × CSRT |
| 6: WDI | Watchdog input | Falling edge resets watchdog timer; minimum pulse width 150ns - interfaces directly with µP GPIO |
| 7: WDS | Watchdog select input | GND = normal mode, VCC = 128× extended timeout; transition clears watchdog counter |
| 8: VCC | Supply voltage input | Monitored supply rail (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 125nA typical enables >10-year operation on coin-cell batteries in glucose monitors |
| Capacitor-adjustable timing | Independent SRT and SWT pins allow precise tuning of reset and watchdog periods without trimming resistors |
| Watchdog disable function | Grounding SWT disables watchdog entirely - simplifies validation in non-watchdog designs |
| Power-supply transient immunity | Withstands VCC glitches ≤40µs at 100mV overdrive - prevents spurious resets in noisy automotive environments |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - ensures reliable reset assertion during deep brownout |
Applications
| Glucose Monitors | Patient Monitoring Systems |
|---|---|
Use Scenario: Continuous subcutaneous glucose sensing with Bluetooth LE transmission requiring low-power wake/sleep cycles. IC Role / Device Role / Timing Role: Supervisory circuit providing power-on reset, brownout protection, and programmable watchdog supervision of MCU firmware execution. Use Value: 125nA supply current extends CR2032 battery life beyond 2 years; open-drain RESET interfaces cleanly with 1.8V MCU I/O. | Use Scenario: Portable ECG and SpO₂ units operating from rechargeable Li-ion cells with strict energy budgets. IC Role / Device Role / Timing Role: Voltage monitor and reset controller ensuring safe boot and runtime integrity of ARM Cortex-M4 host processor. Use Value: Factory-trimmed 2.925V threshold matches common 3.0V LDO outputs; -40°C to +125°C rating supports clinical and field use. |
| Smart Meters | HVAC Controllers |
Use Scenario: ANSI C12.19-compliant electricity meters deployed in outdoor enclosures with wide ambient temperature swings. IC Role / Device Role / Timing Role: Single-supply supervisor asserting RESET during AC line dropout and enabling watchdog recovery from firmware hangs. Use Value: 125nA ICC minimizes self-heating in sealed meter housings; 128× extended watchdog mode supports long polling intervals in mesh networks. | Use Scenario: DIN-rail mounted HVAC controllers managing compressor sequencing and sensor fusion in industrial buildings. IC Role / Device Role / Timing Role: System-level reset generator coordinating power-up of analog front-end, communication ICs, and microcontroller. Use Value: Adjustable tRP (via SRT) aligns with slow-ramping 5V DC-DC converters; transient immunity prevents false resets during relay switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA29+T | Push-pull RESET output; identical reset threshold, timing architecture, and package | Requires no external pullup; unsuitable where wired-OR or level-shifting is needed | Select when system uses single-supply logic and push-pull drive simplifies board layout |
| TPS3808G33DBVR | Fixed 3.3V threshold; 1.4µA typical ICC; no watchdog; SOT-23-6 package | Lacks capacitor-adjustable timing and watchdog - limited to basic reset-only use cases | Select only for cost-sensitive, non-watchdog applications where 3.3V threshold suffices and ultra-low ICC is secondary |
Compared with MAX16056ATA29+T, the MAX16058ATA29+T provides essential level-shifting flexibility via open-drain RESET, while TPS3808G33DBVR trades timing configurability and nano-power operation for lower unit cost in fixed-threshold designs.
Availability
MAX16058ATA29+T is available at Aetrix Electronics and suitable for glucose monitors, patient monitoring systems, smart meters, and HVAC controllers requiring stable component supply with guaranteed automotive-grade temperature performance and RoHS-compliant packaging.
Supply support for MAX16058ATA29+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, serving industrial, automotive, communications, and healthcare markets.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power, high-reliability supervisory functions in battery-critical and automotive-qualified applications - emphasizing nano-power operation, capacitor-programmable timing, and robust reset generation across extreme temperatures.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA29+T?
The MAX16058ATA29+T has a factory-trimmed reset threshold of 2.925V, with tolerance of ±1.5% at +25°C and ±2.5% over the full -40°C to +125°C operating range. This value is confirmed by the "29" suffix in the part number per Table 1 of the datasheet and applies specifically to the MAX16058ATA29+T variant within the MAX16056–MAX16059 family.
Does MAX16058ATA29+T support watchdog timer disable functionality?
Yes, MAX16058ATA29+T supports watchdog disable: connecting the SWT pin directly to GND disables the watchdog timer function entirely. This behavior is documented in the Pin Description and Detailed Description sections, and is distinct from the WDS pin's role in selecting normal vs. extended timeout modes.
What package type and dimensions does MAX16058ATA29+T use?
MAX16058ATA29+T uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm. The exposed pad (EP) must be soldered to GND for optimal thermal performance and electrical stability, as specified in the Package Information section and Pin Configurations diagram.
Can MAX16058ATA29+T operate reliably below 1.8V supply voltage?
Yes, MAX16058ATA29+T operates reliably from 1.1V to 5.5V. Its supply current remains at 125nA typical even at VCC = 1.8V and -40°C to +125°C, and RESET output is guaranteed valid down to VCC = 1.1V - making it suitable for single-cell Li-ion or NiMH battery systems with deep discharge profiles.
How is the reset timeout period configured on MAX16058ATA29+T?
The reset timeout period on MAX16058ATA29+T is configured by connecting a capacitor between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (tRP in seconds, CSRT in farads); for example, 2700pF yields 14.18ms typical. This capacitor must be low-leakage (<10nA), such as X7R ceramic, as specified in the Applications Information section.
MAX16058ATA29+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:
- 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+T FAQ
1.How can I place an order for MAX16058ATA29+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA29+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 MAX16058ATA29+T reliable?
The price and inventory of MAX16058ATA29+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA29+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA29+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA29+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA29+T?
MAX16058ATA29+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA29+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 MAX16058ATA29+T?
For technical support, including MAX16058ATA29+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA29+T requirements.
6.How does Aetrix verify that MAX16058ATA29+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA29+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 MAX16058ATA29+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA29+T?
All MAX16058ATA29+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA29+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 MAX16058ATA29+T part is unused and in its original packaging.
Return procedure for MAX16058ATA29+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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