Analog Devices Inc./Maxim Integrated MAX16059ATT31+T
- Part No.:
- MAX16059ATT31+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16059ATT31+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,500
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Product details
Overview
MAX16059ATT31+T from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 3.075V reset threshold, 125nA typical supply current, capacitor-adjustable reset timeout (10.5–17.0ms), and no watchdog timer. It asserts active-low RESET during VCC brownout, manual reset, or power-up sequencing in portable medical and battery-powered systems.
For engineers reviewing the MAX16059ATT31+T datasheet, MAX16059ATT31+T pinout, MAX16059ATT31+T application, or MAX16059ATT31+T equivalent, this page delivers verified specifications, thermal performance data, reset timing behavior across -40°C to +125°C, and design guidance for capacitor-based timeout configuration in space-constrained embedded systems.
Technical Context
The MAX16059ATT31+T implements a precision voltage monitor with ±2.5% threshold accuracy over temperature and guaranteed RESET validity down to VCC = 1.1V. Its internal ramp-based timing architecture uses SRT pin current (210–240nA) and threshold (1.173–1.297V) to generate programmable reset delay via external capacitor.
Unlike watchdog-equipped variants (MAX16056/MAX16058), this part omits WDI, WDS, and SWT pins-simplifying layout and eliminating watchdog-related timing calibration. The open-drain RESET output supports logic-level translation up to 5.5V and sinks ≥50µA at 0.3V with VCC ≥1.0V.
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 sensors |
| Reset Threshold | 3.075V (factory-trimmed, ±2.5% over temp) - matches 3.3V system rails with margin for dropout |
| Reset Timeout Range | 10.5–17.0ms with 2700pF SRT capacitor - ensures reliable µP initialization after power stabilization |
| Operating Voltage | 1.1V to 5.5V - supports single-cell Li-ion, coin-cell, and 3.3V/5V logic domains |
| Temperature Range | -40°C to +125°C - qualified for automotive cabin and industrial edge environments |
| RESET Output Type | Open-drain - allows flexible pull-up to any logic rail ≤5.5V for mixed-voltage interfacing |
| VCC Transient Immunity | Withstands 100mV glitches ≤40µs - prevents spurious resets during switching noise events |
Pinout & Package
MAX16059ATT31+T uses a 6-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) for thermal enhancement. Pin 1 is RESET; Pin 2 is GND; Pin 3 is MR; Pin 4 is SRT; Pin 5 is VCC; Pin 6 is NC. EP must be connected to GND per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low open-drain reset output | Asserts low during brownout/manual reset; requires external pull-up; valid down to VCC = 1.1V |
| 2 - GND | Ground reference | Primary return path for all internal circuits and SRT/CSRT capacitor discharge |
| 3 - MR | Manual reset input | CMOS-compatible input; no internal pull-up; must be tied to VCC if unused |
| 4 - SRT | Reset timeout capacitor connection | Sinks 210–240nA to ground; sets tRP = 5.15×10⁶ × CSRT (seconds) |
| 5 - VCC | Supply and monitored voltage input | Power source and threshold reference; bypass with 0.1µF ceramic to GND |
| 6 - N.C. | No connection | Not internally bonded; leave unconnected or float |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year operation on CR2032 coin cell in sleep-mode systems |
| Capacitor-adjustable tRP | External SRT capacitor (39pF–4.7µF) sets precise reset hold time without trimming resistors |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - ensures reset assertion even during deep brownout |
| High noise immunity | Rejects VCC transients ≤40µs at 100mV overdrive - eliminates false triggers in noisy automotive/industrial rails |
| Small footprint | 3mm × 3mm TDFN-EP saves >60% board area vs. SOIC-8 alternatives while enabling thermal relief via EP |
Applications
| Portable Medical Sensors | Battery-Powered IoT Endpoints |
|---|---|
Use Scenario: Glucose monitors and patient wearables operating from single-cell Li-ion or coin cells with strict power budgets. IC Role / Device Role / Timing Role: Supervises VCC during cold-start and low-battery conditions; holds µP in reset until stable 3.3V rail is established. Use Value: Prevents firmware corruption during brownout by enforcing ≥10.5ms reset pulse, validated across -40°C to +85°C operating range. |
Use Scenario: Wireless sensor nodes transmitting intermittently to gateways, spending >99% of time in deep sleep. IC Role / Device Role / Timing Role: Provides deterministic power-on reset timing while consuming only 125nA - extending battery life beyond 5 years. Use Value: Enables reliable wake-up sequencing without external RC networks, reducing BOM count and layout complexity. |
| Industrial Metering Modules | Automotive Cabin Electronics |
Use Scenario: Smart electricity/water meters exposed to wide ambient temperatures and conducted EMI. IC Role / Device Role / Timing Role: Monitors 3.3V supply derived from isolated DC-DC converters; asserts RESET on line dips or startup undershoot. Use Value: Withstands 100mV/40µs transients per spec - avoids false resets during relay switching or load dump events. |
Use Scenario: Infotainment control modules and HVAC actuators requiring AEC-Q100-compliant supervision. IC Role / Device Role / Timing Role: Guarantees reset assertion for VCC ≥1.1V across -40°C to +125°C - meets automotive cold-crank and hot-soak requirements. Use Value: Factory-trimmed 3.075V threshold provides 225mV margin below nominal 3.3V rail, ensuring robustness against voltage droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16057ATT31+T | Push-pull RESET output instead of open-drain; identical threshold, timing, and package | Requires no external pull-up; unsuitable for level-shifting or wired-OR configurations | Select when driving CMOS inputs directly without voltage translation |
| TPS3808G33DBVR | Higher 1.8µA quiescent current; fixed 3.3V threshold; SOT-23-6 package | Larger footprint; less suitable for ultra-low-power or tight thermal designs | Choose for cost-sensitive volume production where 125nA is not required |
Compared with MAX16059ATT31+T, MAX16057ATT31+T offers push-pull drive but loses open-drain flexibility, while TPS3808G33DBVR trades nanoPower efficiency for broader vendor availability and simpler qualification-making MAX16059ATT31+T optimal for battery longevity and mixed-voltage interface needs.
Availability
MAX16059ATT31+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT endpoints, and industrial metering requiring stable component supply with automotive-grade temperature support and RoHS compliance.
Supply support for MAX16059ATT31+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 supervision in space- and energy-constrained applications, emphasizing nanoscale current consumption, capacitor-programmable timing, and extended temperature reliability.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16059ATT31+T?
The MAX16059ATT31+T has a factory-trimmed reset threshold of 3.075V (typical), with ±2.5% tolerance over the full -40°C to +125°C operating range. This value corresponds to the "31" suffix per Table 1 in the datasheet and is laser-trimmed during production to match 3.3V system rails with appropriate dropout margin.
Does MAX16059ATT31+T include a watchdog timer function?
No, MAX16059ATT31+T does not include a watchdog timer. It belongs to the MAX16057/MAX16059 series, which omits WDI, WDS, and SWT pins entirely. Watchdog capability is exclusive to MAX16056/MAX16058 variants. The MAX16059ATT31+T focuses solely on voltage monitoring and capacitor-adjustable reset timing.
What is the recommended capacitor value for the SRT pin on MAX16059ATT31+T?
The recommended SRT capacitor for MAX16059ATT31+T is 2700pF, yielding a nominal reset timeout of 14.18ms (range: 10.5–17.0ms). Ceramic X7R dielectric is specified for low leakage (<10nA); values between 39pF and 4.7µF are supported per Table 2, with timing calculated as tRP = 5.15 × 10⁶ × CSRT (seconds).
Can MAX16059ATT31+T operate with supply voltages below 1.8V?
Yes, MAX16059ATT31+T operates from 1.1V to 5.5V. At VCC = 1.2V, it maintains guaranteed RESET functionality and draws only 132–185nA (typ/max) supply current. Its ability to assert valid RESET down to 1.1V makes it suitable for single-cell alkaline or LiFePO₄ battery systems.
Is the exposed pad (EP) on MAX16059ATT31+T required to be connected to ground?
Yes, the exposed pad (EP) on MAX16059ATT31+T must be connected to GND per the datasheet recommendation. This connection improves thermal dissipation (θJC = 9°C/W) and electrical stability. Leaving EP floating may compromise thermal performance and long-term reliability under continuous operation at +125°C.
MAX16059ATT31+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-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:
- 3.075V
- 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:
- 6-TDFN (3x3)
MAX16059ATT31+T FAQ
1.How can I place an order for MAX16059ATT31+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16059ATT31+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 MAX16059ATT31+T reliable?
The price and inventory of MAX16059ATT31+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16059ATT31+T is usually 5 days.
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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 MAX16059ATT31+T?
For technical support, including MAX16059ATT31+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16059ATT31+T requirements.
6.How does Aetrix verify that MAX16059ATT31+T is sourced from the original manufacturer or authorized distributors?
All MAX16059ATT31+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 MAX16059ATT31+T meets industry standards.
7.What is the process for return or replacement of MAX16059ATT31+T?
All MAX16059ATT31+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16059ATT31+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 MAX16059ATT31+T part is unused and in its original packaging.
Return procedure for MAX16059ATT31+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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