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Analog Devices Inc./Maxim Integrated MAX16058ATA46+T
- Part No.:
- MAX16058ATA46+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA46+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,113
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Product details
Overview
The MAX16058ATA46+T from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain RESET output, factory-trimmed 4.625V 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 stability and nanoscale current draw are critical.
For engineers reviewing the MAX16058ATA46+T datasheet, MAX16058ATA46+T pinout, MAX16058ATA46+T application, or MAX16058ATA46+T equivalent, this page delivers verified specifications, automotive-grade thermal performance (θJA = 41°C/W), TDFN-8EP package details, and real-world design guidance for reset timing, watchdog configuration, and transient immunity-without generic claims or unsupported assumptions.
Technical Context
This device 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 another for watchdog timeout (SWT pin, floor[CSWT × 5.15 × 10⁶ / 6.4ms] × 6.4ms + 3.2ms). The WDS input selects normal or 128× extended watchdog mode, and sampling of SWT capacitance occurs after RESET deassertion.
It features guaranteed RESET validity down to VCC = 1.1V, power-supply transient immunity (e.g., ≤40µs for 100mV overdrive), and CMOS-compatible MR input with 1µs minimum pulse width. The open-drain RESET output supports level-shifting up to 5.5V and sinks ≥50µA at VOL ≤ 0.3V when VCC ≥ 1.0V.
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 sensors |
| Reset Threshold | 4.625V (factory-trimmed, ±2.5% over -40°C to +125°C); matches 5V system brownout detection |
| Reset Timeout | 10.5–17.0 ms typical with 2700pF on SRT; ensures reliable µP initialization after power recovery |
| Watchdog Timeout | 5–9.5 ms base period (TA = -40°C to +125°C); extends to 217s with 0.33µF and WDS = VCC |
| Operating Range | -40°C to +125°C; qualified for automotive under-hood and industrial metering environments |
| Package | 8-pin TDFN-EP (3mm × 3mm); exposed pad must be connected to GND for thermal and electrical integrity |
| VCC Range | 1.1V to 5.5V; supports operation during deep brownout and compatibility with Li-ion, coin-cell, and 3.3V/5V rails |
Pinout & Package
MAX16058ATA46+T uses an 8-pin TDFN-EP (3mm × 3mm) package with exposed pad (EP) requiring connection to GND. Pin functions are validated per Analog Devices' official pin description table and typical operating circuit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Open-drain reset output | Asserts low during VCC drop below 4.625V, MR low, or watchdog timeout; requires external pullup |
| 2: GND | Ground reference | Primary return path for all internal circuits and EP thermal conduction |
| 3: SWT | Watchdog timeout capacitor input | Connects to GND via capacitor (2275pF–0.54µF) to set base watchdog period; grounded to disable |
| 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 (39pF–4.7µF) to set reset assertion duration after fault clearance |
| 6: WDI | Watchdog input | Falling edge resets watchdog timer; detects pulses ≥150ns; asserts reset if not toggled within timeout |
| 7: WDS | Watchdog select input | GND = normal mode; VCC = 128× extended timeout; transition clears watchdog counter |
| 8: VCC | Supply voltage input | Monitored 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 remote sensors |
| Capacitor-adjustable timing | Independent SRT and SWT pins allow precise, board-level tuning of reset and watchdog periods without firmware changes |
| Watchdog capacitor open detect | SWT < 470pF forces continuous RESET assertion-detects PCB assembly defects like missing capacitor or open trace |
| Transient immunity | Immune to VCC glitches ≤40µs at 100mV overdrive-prevents spurious resets in noisy automotive or industrial environments |
| Valid RESET down to 1.1V | Guaranteed output functionality during deep brownout ensures deterministic µP behavior before full power collapse |
Applications
| Portable Medical Sensors | Battery-Powered Meters |
|---|---|
Use Scenario: Continuous glucose monitoring devices powered by CR2032 coin cells with intermittent RF transmission. IC Role / Device Role / Timing Role: Supervises 3.3V LDO output; asserts RESET during battery sag below 4.625V and triggers watchdog if firmware hangs during BLE handshake. Use Value: Prevents corrupted sensor readings and failed transmissions by enforcing clean restarts, extending usable battery life via 125nA quiescent draw. |
Use Scenario: Smart electricity meters deployed in outdoor substations with wide temperature swings (-40°C to +125°C). IC Role / Device Role / Timing Role: Monitors main 5V supply; provides 14ms reset timeout after AC brownout and configurable watchdog to catch firmware lockups in harsh EMI environments. Use Value: Ensures regulatory-compliant meter uptime and data integrity without field recalls due to unhandled power faults. |
| Automotive Telematics | Industrial Handheld Scanners |
Use Scenario: OBD-II dongles drawing power from vehicle ignition line with rapid transients during engine cranking. IC Role / Device Role / Timing Role: Detects VCC dips below 4.625V during cranking; uses transient immunity to avoid false resets; leverages WDS to extend watchdog for long GPS acquisition cycles. Use Value: Maintains stable CAN communication and GNSS lock across repeated engine starts without manual intervention or firmware reboot loops. |
Use Scenario: Rugged barcode scanners used in warehouses with frequent drop-induced power interruptions. IC Role / Device Role / Timing Role: Supervises 3.3V rail from Li-Po battery; asserts RESET on voltage collapse during impact; uses MR input for hardware-initiated recalibration. Use Value: Eliminates "frozen UI" failures after mechanical shock by guaranteeing full µP reset and memory reinitialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA46+T | Push-pull RESET output; no external pullup required; identical reset threshold and timing specs | Better suited for systems where RESET must drive CMOS inputs directly without pullup resistor | Select when board layout constraints prohibit adding pullup or when driving high-capacitance buses |
| TLV809E46DBZR | Fixed 4.63V threshold; no watchdog; 1.8µA supply current; SOT-23-3 package | Lacks capacitor-adjustable timing and watchdog; lower integration but smaller footprint | Choose for cost-sensitive, space-constrained designs where only basic reset is needed and µA-level ICC is acceptable |
Compared with MAX16056ATA46+T, the push-pull variant simplifies BOM and layout but removes level-shifting flexibility; compared with TLV809E46DBZR, MAX16058ATA46+T adds watchdog, nanoscale current, and timing adjustability at the cost of larger package and higher complexity-making it optimal for safety-critical, battery-limited systems requiring robust fault recovery.
Availability
MAX16058ATA46+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered utility meters, automotive telematics, and industrial handheld scanners requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16058ATA46+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 battery-critical and automotive-grade applications, emphasizing nanoscale current consumption, wide-temperature reliability, and flexible timing configuration.
FAQ
What is the exact reset threshold voltage of the MAX16058ATA46+T?
The MAX16058ATA46+T has a factory-trimmed reset threshold of 4.625V (typical), 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 in Table 1 of the datasheet under suffix "46", and applies exclusively to the MAX16058ATA46+T-not other variants in the MAX16056–MAX16059 family.
Does the MAX16058ATA46+T include a watchdog timer, and how is it configured?
Yes, the MAX16058ATA46+T includes a configurable watchdog timer. It is enabled by connecting a capacitor (2275pF–0.54µF) between SWT and GND. The WDS pin selects normal mode (GND) or 128× extended mode (VCC). A falling edge on WDI within the timeout period clears the timer; failure triggers a reset pulse lasting tRP. This functionality is exclusive to MAX16056/MAX16058 variants.
What package type and thermal characteristics does the MAX16058ATA46+T use?
The MAX16058ATA46+T uses an 8-pin TDFN-EP package (3mm × 3mm) with exposed pad. Its thermal resistance is θJA = 41°C/W and θJC = 8°C/W, measured per JEDEC JESD51-7 on a four-layer board. The exposed pad must be soldered to a GND plane for optimal thermal performance and electrical stability-verified in the Package Thermal Characteristics section.
Can the MAX16058ATA46+T operate with supply voltages below 1.8V?
Yes, the MAX16058ATA46+T operates from VCC = 1.1V to 5.5V. At 1.2V, supply current is 142nA (typ) over -40°C to +85°C, and RESET remains valid down to 1.1V. This enables use in ultra-low-voltage systems such as energy-harvesting nodes or partially discharged lithium batteries-confirmed in the Electrical Characteristics table under "Supply Voltage" and "RESET Output Voltage".
How does the MAX16058ATA46+T handle power-supply transients?
The MAX16058ATA46+T provides guaranteed immunity to short VCC transients: a 100mV overdrive event ≤40µs in duration will not trigger a false reset, as shown in Figure 6 ("MAXIMUM VCC TRANSIENT DURATION vs. RESET THRESHOLD OVERDRIVE"). This is achieved through internal filtering and hysteresis (0.5%), making it suitable for electrically noisy environments like automotive or industrial power systems.
MAX16058ATA46+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:
- 4.625V
- 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)
MAX16058ATA46+T FAQ
1.How can I place an order for MAX16058ATA46+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA46+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 MAX16058ATA46+T reliable?
The price and inventory of MAX16058ATA46+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA46+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA46+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA46+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA46+T?
MAX16058ATA46+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA46+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 MAX16058ATA46+T?
For technical support, including MAX16058ATA46+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA46+T requirements.
6.How does Aetrix verify that MAX16058ATA46+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA46+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 MAX16058ATA46+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA46+T?
All MAX16058ATA46+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA46+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 MAX16058ATA46+T part is unused and in its original packaging.
Return procedure for MAX16058ATA46+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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