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Analog Devices Inc./Maxim Integrated MAX16058ATA19+T
- Part No.:
- MAX16058ATA19+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA19+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,176
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Product details
Overview
MAX16058ATA19+T from Analog Devices is an ultra-low-power microprocessor supervisory circuit with open-drain RESET output, factory-trimmed 1.900V 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 MAX16058ATA19+T datasheet, MAX16058ATA19+T pinout, MAX16058ATA19+T application, or MAX16058ATA19+T equivalent, key selection criteria include its 8-pin TDFN-EP package, watchdog enable/disable via SWT grounding, WDS-controlled 128× timeout extension, manual-reset input with 250ns MR-to-RESET delay, and compatibility with 1.1V–5.5V supply rails.
Technical Context
The MAX16058ATA19+T implements a precision voltage monitor with hysteresis (0.5%) and dual ramp-based timing 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 watchdog logic clears on falling WDI transitions or WDS level changes, and supports normal/extended modes via WDS pin state.
It features active-low open-drain RESET output with 0.3V VOL at 50µA sink, 1.0µA leakage when deasserted, and guaranteed operation across automotive temperature range (-40°C to +125°C). The device uses BiCMOS process and includes transient immunity up to 40µs for 100mV VCC glitches.
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 portable medical devices |
| Reset Threshold | 1.900V ±2.5% over full temperature range; factory-trimmed for precise brownout detection without external resistors |
| Reset Timeout | 10.5–17.0 ms typical with 2700pF on SRT; programmable to match µP power-up requirements |
| Watchdog Timeout | 5–9.5 ms base period (TA = -40°C to +125°C); extendable to >200s via WDS high and 330nF SWT capacitor |
| Operating Voltage | 1.1V to 5.5V supply range; ensures valid RESET assertion even during deep brownout conditions |
| Output Type | Open-drain RESET; allows level-shifting to different logic domains using external pullup |
| Temperature Range | -40°C to +125°C; qualified for automotive and industrial embedded applications |
Pinout & Package
MAX16058ATA19+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 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 WDS (watchdog select), Pin 7 is WDI (watchdog input), and Pin 8 is VCC. Pin 5 (N.C.) is not internally connected.
| 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-high state |
| 2 - GND | Ground reference | Common return path for all internal circuits and external capacitors (SRT, SWT) |
| 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 assertion duration after fault clearance |
| 6 - WDS | Watchdog select input | GND = normal mode; VCC = 128× extended timeout; transition clears watchdog counter |
| 7 - WDI | Watchdog input | Falling edge resets watchdog timer; pulse width ≥150ns required for reliable detection |
| 8 - VCC | Power supply input | Monitored supply rail; bypass with 0.1µF ceramic capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables decade-scale battery operation in glucose monitors and pagers |
| Capacitor-adjustable timing | SRT and SWT pins allow precise, board-level tuning of reset and watchdog periods without firmware changes |
| Watchdog disable function | Grounding SWT pin fully disables watchdog-no software or configuration overhead required |
| Transient immunity | Immune to ≤40µs, 100mV VCC transients-reduces false resets in noisy automotive or industrial environments |
| Guaranteed RESET down to 1.1V | Ensures deterministic system behavior during deep brownout, eliminating race conditions in low-VCC µP boot |
Applications
| Portable Medical Devices | Battery-Powered Industrial Sensors |
|---|---|
Use Scenario: Glucose meters and patient monitors operating from coin-cell batteries with strict power budgets. IC Role / Device Role / Timing Role: Supervisory circuit providing brownout reset, manual reset, and watchdog supervision of ARM Cortex-M0+ MCU. Use Value: 125nA supply current extends battery life beyond 5 years; 1.900V threshold matches Li-ion discharge curve; open-drain RESET interfaces directly to MCU's active-low nRST pin. |
Use Scenario: Wireless HVAC sensors deployed in remote locations with infrequent maintenance cycles. IC Role / Device Role / Timing Role: System health monitor asserting reset if MCU hangs during BLE advertisement or sensor readout. Use Value: Watchdog timeout extended to 217s via 0.33µF SWT capacitor and WDS=VCC-aligns with 3-minute sensor polling interval without false triggers. |
| Wearable Health Trackers | Automotive Body Control Modules |
Use Scenario: Fitness bands with heart-rate monitoring ASICs requiring clean power-on sequencing. IC Role / Device Role / Timing Role: Power supervisor ensuring µP remains held in reset until LDO output stabilizes above 1.900V. Use Value: Adjustable reset timeout (via SRT capacitor) delays release by 14.18ms-matching 12ms LDO settling time plus 2ms margin. |
Use Scenario: Door module ECUs exposed to load-dump and cold-crank transients in 12V automotive systems. IC Role / Device Role / Timing Role: Fault-tolerant reset generator immune to 40µs supply glitches during alternator switching. Use Value: Guaranteed RESET validity down to VCC = 1.1V prevents undefined MCU state during cranking; -40°C to +125°C rating covers under-hood thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA19+T | Push-pull RESET output; same 1.900V threshold and timing architecture | Requires no external pullup; unsuitable where level-shifting or wired-OR reset bus is needed | Select when driving CMOS inputs directly and minimizing BOM count is prioritized |
| TPS3808G19DBVR | Fixed 1.9V threshold, 200ms min reset timeout, no watchdog, 1.5µA ICC | Lacks capacitor-adjustable timing and watchdog-only suitable for simple power-on reset | Choose only for cost-sensitive, non-watchdog applications where 1.5µA ICC is acceptable |
Compared with MAX16056ATA19+T and TPS3808G19DBVR, MAX16058ATA19+T uniquely combines open-drain flexibility, ultra-low 125nA current, and field-configurable watchdog-making it optimal for battery-constrained, safety-critical portable systems requiring both reset integrity and runtime fault detection.
Availability
MAX16058ATA19+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered industrial sensors, wearable health trackers, and automotive body control modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16058ATA19+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 supervisory functions in space- and energy-constrained applications such as glucose monitors, wearables, and automotive subsystems-emphasizing nanoamp current, wide supply range, and robust timing configurability.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA19+T?
The MAX16058ATA19+T has a factory-trimmed reset threshold of 1.900V, with tolerance of ±1.5% 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 "19", and applies exclusively to this specific part number-not to other variants in the MAX16056–MAX16059 family.
Does MAX16058ATA19+T include a watchdog timer, and how is it configured?
Yes, MAX16058ATA19+T includes a configurable watchdog timer. It is enabled by connecting a capacitor between SWT and GND, and its timeout period is extended 128× when WDS is pulled high. Grounding SWT disables the watchdog entirely. The timer clears on falling edges at WDI or transitions at WDS-functionality verified in the Detailed Description section of the datasheet.
What package type and pin count does MAX16058ATA19+T use?
MAX16058ATA19+T uses an 8-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm. Pin 1 is RESET (open-drain), Pin 2 is GND, Pin 3 is SWT, Pin 4 is MR, Pin 5 is SRT, Pin 6 is WDS, Pin 7 is WDI, and Pin 8 is VCC. The exposed pad (EP) must be soldered to GND for thermal performance.
Can MAX16058ATA19+T operate with supply voltages below 1.8V?
Yes, MAX16058ATA19+T operates from 1.1V to 5.5V. Its supply current remains at 125nA typical even at 1.8V, and RESET output is guaranteed valid down to VCC = 1.1V-critical for brownout resilience in Li-ion and coin-cell systems. Electrical Characteristics table confirms operation at 1.2V minimum for -40°C to 0°C range.
How is the reset timeout period adjusted on MAX16058ATA19+T?
The reset timeout period on MAX16058ATA19+T is adjusted by connecting a capacitor (CSRT) between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (tRP in seconds, CSRT in farads). For example, a 2700pF capacitor yields 14.18ms typical timeout-values validated in Table 2 and Electrical Characteristics section.
MAX16058ATA19+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:
- 1.9V
- 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)
MAX16058ATA19+T FAQ
1.How can I place an order for MAX16058ATA19+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA19+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 MAX16058ATA19+T reliable?
The price and inventory of MAX16058ATA19+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA19+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA19+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA19+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA19+T?
MAX16058ATA19+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA19+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 MAX16058ATA19+T?
For technical support, including MAX16058ATA19+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA19+T requirements.
6.How does Aetrix verify that MAX16058ATA19+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA19+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 MAX16058ATA19+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA19+T?
All MAX16058ATA19+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA19+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 MAX16058ATA19+T part is unused and in its original packaging.
Return procedure for MAX16058ATA19+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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