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Analog Devices Inc./Maxim Integrated MAX16058ATA23+T
- Part No.:
- MAX16058ATA23+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA23+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,444
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Product details
Overview
MAX16058ATA23+T from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain RESET output, factory-trimmed 2.313V 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 1.1V are critical.
For engineers reviewing the MAX16058ATA23+T datasheet, MAX16058ATA23+T pinout, MAX16058ATA23+T application, or MAX16058ATA23+T equivalent, key selection criteria include its 8-pin TDFN-EP package, watchdog timeout programmability via SWT/WDS pins, manual-reset input (MR), and compatibility with 1.1V–5.5V VCC operation across automotive temperature range.
Technical Context
The MAX16058ATA23+T implements a precision bandgap-based voltage monitor with 0.5% hysteresis and a dual-ramp capacitor-timed architecture: SRT sets reset timeout using IRAMP1/VRAMP1, while SWT and WDS jointly configure watchdog behavior-normal mode (WDS = GND) or 128× extended mode (WDS = VCC). Sampling of SWT occurs after RESET deassertion.
Its open-drain RESET output supports level-shifting to logic supplies up to 5.5V, and the device guarantees valid reset assertion for VCC ≥ 1.1V. Transient immunity is characterized by maximum VCC glitch duration vs. overdrive, with ≤40µs at 100mV overdrive not triggering reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 125nA typical at VCC = 1.8V, TA = +25°C; enables multi-year battery life in always-on medical sensors |
| Reset Threshold | 2.313V (factory-trimmed, ±2.5% over -40°C to +125°C); matches 2.3V system rails with margin for brownout detection |
| Reset Timeout | 10.5–17.0 ms typical with 2700pF on SRT; ensures µP completes power-up initialization before release |
| Watchdog Timeout | 5–9.5 ms typical base period (SWT = 2700pF), extendable to 217s via WDS high; prevents firmware lockup in unattended devices |
| Operating Range | -40°C to +125°C ambient; qualified for automotive and industrial embedded applications requiring AEC-Q100-level robustness |
| VCC Range | 1.1V to 5.5V; supports Li-ion, coin-cell, and multi-rail systems without external regulators |
| RESET Output Type | Open-drain; allows wired-OR configuration and level-shifting to higher logic voltages (e.g., 3.3V µP with 5V I/O) |
Pinout & Package
MAX16058ATA23+T is housed in a 3mm × 3mm, 8-pin TDFN-EP package with exposed pad (EP) intended for grounding to improve thermal performance and EMI immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Open-drain reset output | Asserts low during VCC undervoltage, MR activation, or watchdog timeout; requires external pullup for logic-level compatibility |
| 2: GND | Ground reference | Primary return path for all internal circuits and external capacitors (SRT, SWT); must connect to system ground plane |
| 3: SWT | Watchdog timeout capacitor input | Connects to GND via CSWT (2275pF–0.54µF) to set base watchdog period; grounded to disable watchdog |
| 4: MR | Manual reset input | Active-low asynchronous reset trigger; no internal pullup-must tie to VCC if unused or use external RC debounce |
| 5: SRT | Reset timeout capacitor input | Connects to GND via CSRT (39pF–4.7µF) to set reset assertion duration after fault clearance |
| 6: WDI | Watchdog input | Falling edge resets watchdog timer; minimum pulse width 150ns; toggled by µP firmware to prevent timeout |
| 7: WDS | Watchdog select input | GND = normal mode (tWD), VCC = extended mode (tWD × 128); transition clears watchdog counter |
| 8: VCC | Power supply input | Monitored supply 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 portable meters |
| Capacitor-programmable timing | SRT and SWT pins eliminate need for external timers or microcontroller intervention for reset/watchdog tuning |
| Watchdog disable & mode select | SWT-to-GND disables watchdog; WDS pin selects 1× or 128× timeout scaling-no firmware changes required |
| Guaranteed RESET down to 1.1V | Ensures deterministic reset assertion even during deep brownout, preventing undefined µP state |
| Transient immunity | Withstands ≤40µs, 100mV VCC glitches without spurious reset-critical in noisy automotive or industrial environments |
| Exposed thermal pad (EP) | Reduces θJA to 41°C/W, enabling stable operation at +125°C ambient in compact PCB layouts |
Applications
| Glucose Monitoring Systems | Patient Vital Sign Monitors |
|---|---|
|
Use Scenario: Continuous glucose sensing in wearable patch pumps with coin-cell power and infrequent firmware updates. IC Role / Device Role / Timing Role: Supervises 2.3V analog front-end supply; asserts RESET during battery sag or sensor initialization faults; watchdog guards against firmware hang during BLE transmission. Use Value: Prevents erroneous glucose readings by ensuring ADC and RF subsystems initialize fully before operation, leveraging 2.313V threshold matched to system rail. |
Use Scenario: Portable ECG/SpO₂ units operating on AA batteries with sleep/wake cycles managed by µP. IC Role / Device Role / Timing Role: Monitors main 3.3V supply; uses open-drain RESET to control p-MOSFET power switch; watchdog timeout synchronized to firmware heartbeat interval. Use Value: Enables zero-shutdown current via RESET-driven power gating, extending battery life by eliminating µP leakage during sleep. |
| Smart Utility Meters | HVAC Environmental Sensors |
|
Use Scenario: Battery-backed AMI meters deployed outdoors with wide temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: Provides brownout protection for metrology SoC; reset timeout configured for full EEPROM write recovery; manual reset for field calibration. Use Value: Ensures data integrity during grid transients using 2.313V threshold and hysteresis, avoiding corruption of tariff or consumption logs. |
Use Scenario: Wireless temperature/humidity nodes in commercial HVAC ducts with intermittent solar charging. IC Role / Device Role / Timing Role: Supervises 1.8V LDO output powering sensor interface and sub-GHz radio; watchdog enforces firmware watchdog service every 2 seconds. Use Value: Guarantees reliable wake-up and transmission by detecting µP lockup before battery depletion, using capacitor-adjustable tWD for precise timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA23+T | Push-pull RESET output; identical reset threshold, timing, and watchdog functionality | Requires no external pullup resistor; unsuitable where wired-OR reset bus or level-shifting is needed | Select when driving CMOS inputs directly and board space permits simpler BOM without pullup components |
| TPS3808G23DBVR | Fixed 2.3V threshold, 200ms min reset timeout, no watchdog, 1.4µA ICC (typ) | Lacks capacitor-adjustable timing and watchdog; suited only for basic power-on reset without firmware supervision | Choose only for cost-sensitive, non-safety-critical applications where ultra-low ICC and watchdog are unnecessary |
Compared with MAX16056ATA23+T, MAX16058ATA23+T provides open-drain flexibility for system-level reset arbitration, while TPS3808G23DBVR trades nanoPower operation and watchdog capability for lower unit cost and simpler implementation in static reset-only roles.
Availability
MAX16058ATA23+T is available at Aetrix Electronics and suitable for glucose monitors, patient vital sign equipment, smart utility meters, HVAC environmental sensors, and portable medical diagnostics requiring stable component supply across automotive-grade temperature ranges and long-term lifecycle support.
Supply support for MAX16058ATA23+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 since 1965.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power, high-reliability supervisory functions in battery-constrained and safety-critical embedded systems-emphasizing nanoPower operation, programmable timing, and automotive temperature qualification.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA23+T?
The MAX16058ATA23+T has a factory-trimmed reset threshold of 2.313V, with tolerance of ±1.5% at +25°C and ±2.5% over the full -40°C to +125°C operating range. This value corresponds to the "23" suffix per Table 1 in the datasheet and is laser-trimmed during production to match 2.3V system rails precisely.
Does MAX16058ATA23+T support watchdog timer disable functionality?
Yes, MAX16058ATA23+T supports watchdog disable: connecting the SWT pin directly to GND disables the watchdog function entirely. This is confirmed in the Pin Description section and Applications Information, where it states "Connect SWT to ground to disable the watchdog timer function." No firmware or WDS manipulation is required.
What package type and dimensions does MAX16058ATA23+T use?
MAX16058ATA23+T uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm. The exposed pad (EP) is electrically connected to GND and thermally enhances dissipation, achieving θJA = 41°C/W. Land pattern number 90-0059 applies per Analog Devices package documentation.
Can MAX16058ATA23+T operate with supply voltages below 1.8V?
Yes, MAX16058ATA23+T operates from 1.1V to 5.5V VCC. Electrical Characteristics confirm supply current and reset functionality are specified down to 1.1V, and RESET remains valid (guaranteed low-state) for VCC ≥ 1.1V-enabling use with single-cell LiFePO₄ or alkaline batteries under discharge.
How is the reset timeout period adjusted on MAX16058ATA23+T?
The reset timeout period on MAX16058ATA23+T is adjusted by connecting an external capacitor (CSRT) between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (seconds), yielding 10.5–17.0 ms typical with 2700pF. Ceramic X7R capacitors from 39pF to 4.7µF are recommended per Applications Information.
MAX16058ATA23+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:
- 2.313V
- 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)
MAX16058ATA23+T FAQ
1.How can I place an order for MAX16058ATA23+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA23+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 MAX16058ATA23+T reliable?
The price and inventory of MAX16058ATA23+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA23+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA23+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA23+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA23+T?
MAX16058ATA23+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA23+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 MAX16058ATA23+T?
For technical support, including MAX16058ATA23+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA23+T requirements.
6.How does Aetrix verify that MAX16058ATA23+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA23+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 MAX16058ATA23+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA23+T?
All MAX16058ATA23+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA23+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 MAX16058ATA23+T part is unused and in its original packaging.
Return procedure for MAX16058ATA23+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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