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Analog Devices Inc./Maxim Integrated MAX16057ATT31+T
- Part No.:
- MAX16057ATT31+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16057ATT31+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,414
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Product details
Overview
The MAX16057ATT31+T from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 3.075V reset threshold (±2.5% over -40°C to +125°C), 125nA typical supply current at 1.8V, capacitor-adjustable reset timeout (e.g., 14.18ms with 2700pF), push-pull RESET output, and no watchdog timer - designed for brownout detection and power-up sequencing in battery-critical medical and portable electronics.
For engineers reviewing the MAX16057ATT31+T datasheet, MAX16057ATT31+T pinout, MAX16057ATT31+T application, or MAX16057ATT31+T equivalent, key selection criteria include its 1.1V to 5.5V operating range, guaranteed RESET validity down to VCC = 1.1V, thermal stability across automotive temperature range, and absence of watchdog logic - distinguishing it from MAX16056/MAX16058 variants.
Technical Context
This device implements a precision voltage monitor with hysteresis (0.5%) and an internal ramp-based timing architecture: SRT pin charges via 210–240nA current to VRAMP1 (1.173–1.297V) to set tRP, while VCC monitoring uses a dedicated bandgap reference trimmed at production. Reset assertion is synchronized to VCC falling edge with 80µs propagation delay.
No watchdog circuitry is integrated - confirmed by pinout (no WDI, WDS, or SWT pins), functional description, and ordering table. The device relies solely on VCC monitoring and manual reset (MR) input, with MR-to-RESET delay fixed at 250ns and glitch rejection of 200ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.075V (typ), ±2.5% over -40°C to +125°C - ensures reliable brownout detection for 3.3V systems with margin |
| Supply Current | 125nA (typ) at 1.8V, -40°C to +125°C - enables multi-year operation on coin-cell batteries |
| Operating Voltage | 1.1V to 5.5V - supports single-cell Li-ion, alkaline, and regulated 3.3V/5V rails |
| Reset Timeout | Adjustable via SRT capacitor (e.g., 14.18ms with 2700pF) - accommodates diverse µP power-up sequences |
| Output Type | Push-pull RESET - eliminates external pull-up, simplifies interface to CMOS inputs |
| Temperature Range | -40°C to +125°C - qualified for automotive under-hood and industrial embedded use |
| VCC to RESET Delay | 80µs - fast response to supply collapse, critical for real-time system recovery |
Pinout & Package
Package: 6-pin 3mm × 3mm TDFN-EP (exposed pad); RoHS-compliant, tape-and-reel delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Active-low push-pull reset output | Drives low during VCC undervoltage or MR assertion; remains low for tRP after recovery |
| 2 GND | Ground reference | Return path for all internal circuits; exposed pad (EP) must be connected to GND for thermal and electrical performance |
| 3 MR | Manual reset input | Asynchronous active-low trigger; no internal pull-up - requires external VCC tie or switch-to-GND |
| 4 SRT | Reset timeout capacitor input | Connects to GND via timing capacitor (39pF–4.7µF); sets tRP = 5.15×10⁶ × CSRT seconds |
| 5 VCC | Power supply and monitored rail | Input for both device operation and voltage supervision; bypass with 0.1µF ceramic capacitor |
| 6 N.C. | No connection | Not internally bonded - leave unconnected; no routing or soldering required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year shelf life on CR2032 cells in always-on monitoring |
| Guaranteed RESET at low VCC | RESET remains valid down to VCC = 1.1V - ensures deterministic reset before µP logic fails |
| Capacitor-adjustable tRP | Wide timeout range (≈0.2ms–24s) via single SRT capacitor - eliminates firmware or resistor trimming |
| Transient immunity | Immune to ≤40µs, 100mV VCC transients - prevents spurious resets in noisy automotive/industrial environments |
| Automotive qualification | Specified over -40°C to +125°C with production-tested limits - meets AEC-Q100 stress requirements |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Portable handheld glucose meters powered by single alkaline or lithium coin cell, requiring fail-safe boot sequence and low-power sleep mode. IC Role / Device Role / Timing Role: Supervises 3.0V supply rail; asserts RESET during battery voltage sag below 3.075V; holds µP in reset until stable power resumes. Use Value: Prevents corrupted ADC readings or EEPROM writes during brownout - directly supports ISO 13485 medical device reliability requirements. |
Use Scenario: Battery-backed bedside patient monitors with ECG, SpO₂, and temperature sensors operating continuously for 72+ hours. IC Role / Device Role / Timing Role: Monitors main 3.3V LDO output; triggers hardware reset if supply drops due to battery depletion or load surge. Use Value: Eliminates software-only watchdog dependency - guarantees system-level recovery without µP intervention during critical care events. |
| Metering (Smart Meters) | HVAC Controllers |
Use Scenario: ANSI C12.1-compliant electricity meters with optical port, RF mesh, and tamper detection - deployed in outdoor utility cabinets. IC Role / Device Role / Timing Role: Supervises 3.3V backup rail during AC mains failure; provides precise 14.18ms reset pulse synchronized to supercapacitor discharge profile. Use Value: Ensures clean µP restart before nonvolatile memory write - prevents data corruption during extended power-loss events. |
Use Scenario: Commercial HVAC zone controllers using 24VAC-derived 3.3V supply, subject to transformer inrush and relay switching noise. IC Role / Device Role / Timing Role: Detects VCC dips caused by solenoid actuation; asserts RESET only after sustained drop >80µs - rejects sub-cycle transients. Use Value: Reduces field returns from "ghost resets" - improves Mean Time Between Failures (MTBF) in 10+ year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA31+T | 8-pin TDFN, includes watchdog timer (WDI/WDS/SWT pins), same 3.075V threshold and 125nA ICC | Required where µP activity monitoring is needed (e.g., firmware hang detection in remote sensors) | Select only if watchdog functionality is mandatory; adds two unused pins and higher BOM cost |
| TPS3123E18DBVR | Fixed 1.8V reset threshold, 1.2µA ICC (10× higher), SOT-23-5 package, no adjustable timeout | Suitable for cost-sensitive, non-battery applications where fixed reset and minimal footprint are priorities | Choose when ultra-low power is not critical and timeout adjustment is unnecessary - lower unit price but reduced design flexibility |
Compared with MAX16056ATA31+T, the MAX16057ATT31+T saves board space and reduces complexity by omitting watchdog circuitry; compared with TPS3123E18DBVR, it delivers 10× lower supply current and field-programmable reset timing - making it optimal for long-life, capacitor-timed medical and metering systems.
Availability
The MAX16057ATT31+T is available at Aetrix Electronics and suitable for glucose monitors, patient monitors, smart metering, and HVAC controllers requiring stable component supply across automotive-grade temperature ranges and multi-year battery life.
Supply support for MAX16057ATT31+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 engineered specifically for ultra-low-power supervisory functions in battery-constrained medical, portable, and automotive applications - prioritizing nanoamp quiescent current and guaranteed operation down to 1.1V.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16057ATT31+T?
The MAX16057ATT31+T has a factory-trimmed reset threshold of 3.075V (typical), with tolerance of ±2.5% over the full -40°C to +125°C operating temperature range. This value corresponds to the "31" suffix per Table 1 in the datasheet and is laser-trimmed during production for precision without external components.
Does MAX16057ATT31+T include a watchdog timer function?
No, the MAX16057ATT31+T does not include a watchdog timer. It is explicitly designated as a non-watchdog variant in the product family documentation, pinout (no WDI, WDS, or SWT pins), and ordering table. Watchdog capability is present only in MAX16056 and MAX16058 versions.
What is the recommended capacitor value for a 14.18ms reset timeout with MAX16057ATT31+T?
A 2700pF capacitor connected between the SRT pin and GND yields a nominal reset timeout of 14.18ms for the MAX16057ATT31+T, as specified in Table 2 of the datasheet. Use a low-leakage X7R ceramic capacitor to maintain accuracy across temperature and time.
Can MAX16057ATT31+T operate reliably below 1.8V supply voltage?
Yes, the MAX16057ATT31+T operates from 1.1V to 5.5V. Its 125nA typical supply current is specified down to 1.8V, and RESET output remains valid (guaranteed low-state) even as VCC falls to 1.1V - enabling robust reset assertion in deep brownout conditions.
What package type and dimensions does MAX16057ATT31+T use?
The MAX16057ATT31+T uses a 6-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm. The exposed pad (EP) must be soldered to a GND plane for thermal dissipation and electrical stability, per Analog Devices' land pattern recommendation (Outline No. T633-2).
MAX16057ATT31+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:
- Push-Pull, Totem Pole
- 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)
MAX16057ATT31+T FAQ
1.How can I place an order for MAX16057ATT31+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16057ATT31+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 MAX16057ATT31+T reliable?
The price and inventory of MAX16057ATT31+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16057ATT31+T is usually 5 days.
3.What payment methods are accepted for MAX16057ATT31+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16057ATT31+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16057ATT31+T?
MAX16057ATT31+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16057ATT31+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 MAX16057ATT31+T?
For technical support, including MAX16057ATT31+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16057ATT31+T requirements.
6.How does Aetrix verify that MAX16057ATT31+T is sourced from the original manufacturer or authorized distributors?
All MAX16057ATT31+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 MAX16057ATT31+T meets industry standards.
7.What is the process for return or replacement of MAX16057ATT31+T?
All MAX16057ATT31+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16057ATT31+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 MAX16057ATT31+T part is unused and in its original packaging.
Return procedure for MAX16057ATT31+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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