My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16058ATA26+T
- Part No.:
- MAX16058ATA26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA26+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,541
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16058ATA26+T from Analog Devices is an ultra-low-power 125nA (typ) microprocessor supervisory circuit with open-drain RESET output, factory-trimmed 2.625V reset threshold (±2.5% over -40°C to +125°C), capacitor-adjustable reset timeout (10.5–17.0ms with 2700pF), and integrated watchdog timer with WDS-selectable 128× extension. It monitors single-supply systems in battery-powered medical and portable electronics.
For engineers reviewing the MAX16058ATA26+T datasheet, MAX16058ATA26+T pinout, MAX16058ATA26+T application, or MAX16058ATA26+T equivalent, key selection criteria include its 1.1V–5.5V operating range, guaranteed RESET validity down to VCC = 1.1V, watchdog capacitor open-detect function, and automotive-grade (-40°C to +125°C) qualification in a 3mm × 3mm TDFN package.
Technical Context
The MAX16058ATA26+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 WDS input selects between normal and 128× extended watchdog modes, with automatic sampling of SWT capacitance after RESET deassertion.
It features active-low manual reset (MR) with 1µs minimum pulse width and 250ns MR-to-RESET delay, watchdog input (WDI) capable of detecting 150ns pulses, and push-pull or open-drain RESET output variants-this part uses open-drain configuration with 1.0µA leakage at 5.5V and sink capability up to 3.2mA at VCC ≥ 4.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 125nA typical at VCC = 1.8V, TA = -40°C to +125°C - enables multi-year operation on coin-cell batteries. |
| Reset Threshold | 2.625V (factory-trimmed, ±2.5% over full temperature range) - matches common 2.6V/2.7V system rails with built-in hysteresis. |
| Reset Timeout | 14.18ms typical with 2700pF SRT capacitor - ensures reliable µP initialization across voltage ramp rates. |
| Watchdog Timeout | 6.4ms typical base period (TA = +25°C), extendable to 819.2ms via WDS - supports flexible firmware watchdog servicing intervals. |
| Operating Range | VCC = 1.1V to 5.5V - guarantees supervision during deep brownout and wide-input power architectures. |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive, industrial metering, and medical patient monitors. |
| Output Type | Open-drain RESET - allows level-shifting to logic supplies independent of VCC (e.g., 3.3V µP with 1.8V monitored rail). |
Pinout & Package
MAX16058ATA26+T is housed in an 8-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected to GND per datasheet recommendation. Pin 1 is RESET; pin 2 is GND; pin 3 is SWT; pin 4 is MR; pin 5 is SRT; pin 6 is N.C.; pin 7 is WDS; pin 8 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, MR assertion, or watchdog timeout; requires external pullup for logic-level compatibility. |
| 2 - GND | Ground reference | Primary return path for internal current sources and external capacitor networks (SRT, SWT). |
| 3 - SWT | Watchdog timeout capacitor input | Connects to GND via capacitor (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 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 - N.C. | No connection | Not internally bonded - leave unconnected; no electrical function. |
| 7 - WDS | Watchdog select input | Ground for normal mode (tWD); VCC for 128× extended mode - state change clears watchdog timer. |
| 8 - VCC | Power supply and monitored rail | Supplies device and serves as voltage reference for reset threshold detection; bypass with 0.1µF to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year battery life in glucose monitors and portable meters. |
| Capacitor-adjustable timing | SRT and SWT pins allow precise, board-level tuning of reset and watchdog periods without firmware changes. |
| Watchdog capacitor open detect | Automatically asserts continuous RESET if SWT capacitance <470pF - detects PCB assembly faults or missing components. |
| Transient immunity | Immune to ≤40µs, 100mV VCC transients - prevents spurious resets in noisy automotive or industrial environments. |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - ensures reliable reset assertion even during severe brownout conditions. |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Portable handheld glucose meters powered by CR2032 coin cells requiring multi-year shelf life and reliable power-on reset. IC Role / Device Role / Timing Role: Supervises 2.6V analog front-end and 1.8V MCU supply; asserts RESET until stable VCC and initiates watchdog timeout for firmware sanity check. Use Value: 125nA quiescent current extends battery life beyond 5 years; 2.625V threshold matches sensor rail; open-drain RESET interfaces cleanly with low-voltage µP I/O. |
Use Scenario: Battery-backed bedside patient monitors with ECG, SpO₂, and temperature sensing modules. IC Role / Device Role / Timing Role: Monitors primary 3.3V system rail and secondary 2.6V analog sensor supply; provides manual reset via nurse button and watchdog supervision of real-time OS tasks. Use Value: -40°C to +125°C rating supports clinical environment extremes; capacitor-adjustable tRP accommodates variable power-up sequencing; WDS pin enables field-configurable watchdog timeout. |
| Metering (Smart Energy) | HVAC Remote Sensors |
Use Scenario: ANSI C12.19-compliant smart electricity meters deployed in outdoor enclosures with wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervises 3.3V communication SoC and 2.6V metrology ADC; triggers watchdog reset upon UART communication stall or firmware hang. Use Value: Automotive-grade temp range ensures reliability at -40°C winter startup and +85°C summer operation; 0.5% hysteresis prevents chatter near threshold; EP thermal pad aids heat dissipation in sealed housings. |
Use Scenario: Wireless HVAC zone sensors powered by AA batteries, transmitting temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Controls system power via RESET-driven p-channel MOSFET; uses WDI grounded to generate low-frequency sleep/wake clock; monitors 2.6V RF transceiver supply. Use Value: Open-drain RESET enables direct MOSFET gate drive; ultra-low ICC reduces average system current to <1µA in sleep; 2.625V threshold aligns with LiSOCl₂ battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA26+T | Push-pull RESET output; identical reset threshold, timing architecture, and temperature range. | Requires external pullup only if interfacing to higher-voltage logic; no external pullup needed for same-rail µPs. | Select when system uses same-rail logic and benefits from lower BOM count (no pullup resistor). |
| TLV803EC26DBVR | Fixed 2.63V threshold, no watchdog, 350nA ICC, SOT-23-5 package. | Lacks capacitor-adjustable timing and watchdog - suitable only for basic reset-only use cases. | Select when design requires minimal footprint and only power-on reset (no firmware supervision). |
Compared with MAX16056ATA26+T, the push-pull variant eliminates external pullup but forfeits level-shifting flexibility; compared with TLV803EC26DBVR, MAX16058ATA26+T adds critical watchdog supervision and nanoPower efficiency essential for battery longevity in medical IoT.
Availability
MAX16058ATA26+T is available at Aetrix Electronics and suitable for glucose monitors, patient monitors, and smart metering applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for MAX16058ATA26+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, high-reliability supervision in battery-critical medical, portable, and automotive applications - emphasizing nanoPower operation, capacitor-programmable timing, and robust transient immunity.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA26+T?
The MAX16058ATA26+T has a factory-trimmed reset threshold of 2.625V, 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 "26", and applies specifically to the MAX16058ATA26+T variant.
Does MAX16058ATA26+T support watchdog functionality, and how is it configured?
Yes, MAX16058ATA26+T includes a configurable watchdog timer. It is enabled by connecting a capacitor between SWT and GND, and its timeout period is selected using the WDS pin: grounded for normal mode (base period ~6.4ms), or tied to VCC for 128× extended mode. The watchdog clears on WDI falling edge, RESET assertion, or WDS transition.
What package type and dimensions does MAX16058ATA26+T use?
MAX16058ATA26+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 connected to GND for optimal thermal performance and electrical stability, as specified in the Pin Configurations diagram and Package Information section.
How is the reset timeout period adjusted on MAX16058ATA26+T?
The reset timeout period on MAX16058ATA26+T is set 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 a typical tRP of 14.18ms, as verified in the Electrical Characteristics table.
Is MAX16058ATA26+T qualified for automotive applications?
Yes, MAX16058ATA26+T is fully specified and qualified for the automotive temperature range of -40°C to +125°C. This qualification is explicitly stated in the General Description and Absolute Maximum Ratings sections, and applies to all MAX16056–MAX16059 devices regardless of reset threshold or output type.
MAX16058ATA26+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:
- 2.625V
- 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)
MAX16058ATA26+T FAQ
1.How can I place an order for MAX16058ATA26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA26+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 MAX16058ATA26+T reliable?
The price and inventory of MAX16058ATA26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA26+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA26+T?
MAX16058ATA26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA26+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 MAX16058ATA26+T?
For technical support, including MAX16058ATA26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA26+T requirements.
6.How does Aetrix verify that MAX16058ATA26+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA26+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 MAX16058ATA26+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA26+T?
All MAX16058ATA26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA26+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 MAX16058ATA26+T part is unused and in its original packaging.
Return procedure for MAX16058ATA26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16058ATA26+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
