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Analog Devices Inc./Maxim Integrated MAX16057ATT23+
- Part No.:
- MAX16057ATT23+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16057ATT23+.pdf
- Description:
- IC SUPERVISOR P-P 2.3V 6-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,003
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Product details
Overview
MAX16057ATT23+ from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 2.313V reset threshold, 125nA typical supply current, and capacitor-adjustable reset timeout (10.5–17.0ms). It monitors single VCC supply in battery-powered medical and portable electronics, asserting active-low RESET when VCC drops below threshold or MR is pulled low.
For engineers reviewing the MAX16057ATT23+ datasheet, MAX16057ATT23+ pinout, MAX16057ATT23+ application, or MAX16057ATT23+ equivalent, this page delivers verified technical context, automotive-grade (-40°C to +125°C) operating specs, reset timing behavior, thermal resistance (θJA = 42°C/W), and precise alternative selection guidance for low-power system supervision.
Technical Context
The MAX16057ATT23+ 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 capacitor-determined reset timeout periods.
Unlike watchdog-equipped variants (MAX16056/MAX16058), the MAX16057ATT23+ omits WDI, SWT, WDS, and N.C. pins-enabling a streamlined 6-pin TDFN footprint. It supports push-pull RESET output with 0.3V VOL at 50µA sink and 0.8×VCC VOH at 200µA source, ensuring robust interface with µP reset inputs.
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 battery life in glucose monitors and pagers. |
| Reset Threshold | 2.313V (typ), ±2.5% over –40°C to +125°C - factory-trimmed for stable brownout detection without external resistors. |
| Reset Timeout | 10.5–17.0ms (CSRT = 2700pF) - adjustable via external capacitor to match µP power-up requirements. |
| VCC Operating Range | 1.1V to 5.5V - supports supervision of Li-ion, coin-cell, and 3.3V/5V rails without level-shifting. |
| RESET Output Type | Push-pull - eliminates need for external pullup resistor; drives µP reset input directly with rail-to-rail logic levels. |
| Package | 6-pin TDFN-EP (3mm × 3mm) - saves board space in compact portable devices; exposed pad improves thermal performance (θJC = 9°C/W). |
| Temperature Range | –40°C to +125°C - qualified for automotive and industrial environments where thermal stability is critical. |
Pinout & Package
MAX16057ATT23+ uses a 6-pin TDFN-EP package (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) recommended to be connected to GND for optimal thermal dissipation (θJA = 42°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Active-low push-pull reset output | Asserts low during VCC undervoltage or MR activation; remains low for tRP after recovery - directly interfaces µP reset pin without external components. |
| 2 GND | Ground reference | Common return path for all internal circuits; EP must be tied to GND for thermal and EMI performance. |
| 3 MR | Manual-reset input | CMOS-compatible input; falling edge triggers reset; no internal pullup - requires external pullup to VCC if unused. |
| 4 SRT | Reset timeout capacitor input | Connects to GND via CSRT (39pF–4.7µF); sets tRP = 5.15×10⁶ × CSRT - enables precise timing matching across µP families. |
| 5 VCC | Supply voltage input | Monitored rail input (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND for noise immunity. |
| 6 EP | Exposed thermal pad | Not electrically connected; soldered to GND plane to reduce junction-to-ambient thermal resistance by ~30%. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year battery life in patient monitors and metering devices. |
| Factory-trimmed VTH | 2.313V threshold with ±2.5% tolerance over full temperature range - eliminates calibration overhead in production. |
| Capacitor-adjustable tRP | Reset timeout set by single external capacitor (CSRT), supporting 10.5–17.0ms range - simplifies BOM and layout vs. resistor-divider solutions. |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - ensures reliable reset assertion even during deep brownout conditions. |
| Transient immunity | Immune to ≤40µs, 100mV VCC transients - prevents spurious resets in noisy automotive or industrial power environments. |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Portable handheld device powered by CR2032 coin cell, requiring fail-safe reset during battery voltage sag. IC Role / Device Role / Timing Role: Supervises VCC rail and asserts RESET before µP executes corrupted code during brownout. Use Value: 125nA ICC extends battery life beyond 2 years; 2.313V threshold matches LiMnO₂ discharge profile. |
Use Scenario: Multi-parameter bedside monitor with isolated power domains and strict IEC 60601-1 reset reliability requirements. IC Role / Device Role / Timing Role: Provides deterministic, temperature-stable reset initiation and hold time across –40°C to +125°C ambient. Use Value: Guaranteed RESET validity down to 1.1V ensures safe shutdown even under severe undervoltage; push-pull output eliminates pullup resistor. |
| Metering (Smart Energy) | HVAC Controllers |
Use Scenario: DIN-rail mounted electricity meter operating from wide-input DC-DC converter with ripple-sensitive µP. IC Role / Device Role / Timing Role: Detects VCC droop caused by load transients and holds RESET for 14.18ms (CSRT = 2700pF) to ensure clean boot. Use Value: 42°C/W θJA enables operation at full rating in sealed enclosures; transient immunity rejects 50Hz switching noise. |
Use Scenario: Wireless thermostat using BLE SoC and intermittent wake-up cycles to minimize power draw. IC Role / Device Role / Timing Role: Generates precise reset pulse aligned with µP wake-up timing; MR pin allows button-initiated recalibration. Use Value: Adjustable tRP via SRT capacitor allows synchronization with RF startup sequence; 6-pin TDFN fits tight PCB real estate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16057ATT22+ | 2.235V reset threshold (vs. 2.313V); otherwise identical pinout, timing, and electrical specs. | Suitable for systems with tighter 2.2V nominal rails (e.g., some 2.2V LDO outputs). | Select when VCC nominal is closer to 2.2V than 2.3V; same layout, no firmware change required. |
| MAX16057ATT26+ | 2.625V reset threshold (vs. 2.313V); identical package, temperature range, and capacitor-adjustable tRP. | Preferred for 2.5V/2.7V supply monitoring where higher threshold avoids nuisance resets during ripple. | Choose for 2.5V systems needing margin above typical dropout; drop-in replacement with threshold-only change. |
Compared with MAX16057ATT22+ and MAX16057ATT26+, the MAX16057ATT23+ provides optimal reset margin for 2.3V nominal supplies-balancing early fault detection against false triggering on transient dips-while maintaining identical layout, thermal, and timing behavior.
Availability
MAX16057ATT23+ is available at Aetrix Electronics and suitable for portable medical devices, smart metering, and HVAC controllers requiring stable component supply with automotive-grade temperature qualification and long-term lifecycle support.
Supply support for MAX16057ATT23+ 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.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power supervision in battery-critical applications-delivering nanoamp current, factory-trimmed thresholds, and capacitor-programmable timing in miniature TDFN packages.
FAQ
What is the exact reset threshold voltage of MAX16057ATT23+?
The MAX16057ATT23+ has a factory-trimmed reset threshold of 2.313V (typical), with ±2.5% tolerance over the full –40°C to +125°C temperature range. This value is confirmed in Table 1 of the official datasheet (suffix "23" corresponds to VTH = 2.313V), and applies specifically to the MAX16057ATT23+ variant-not the broader MAX16057 family.
Does MAX16057ATT23+ include a watchdog timer function?
No, the MAX16057ATT23+ does not include a watchdog timer. It is explicitly defined in the datasheet as a non-watchdog variant (MAX16057/MAX16059 series), omitting WDI, SWT, and WDS pins. The MAX16057ATT23+ provides only VCC monitoring and manual reset functionality-unlike the MAX16056/MAX16058 series which integrate watchdog capability.
What capacitor value sets the standard reset timeout for MAX16057ATT23+?
A 2700pF capacitor connected between SRT and GND sets the standard reset timeout of 14.18ms (typical) for MAX16057ATT23+, per Table 2 in the datasheet. This value is widely used in reference designs for µPs requiring ~15ms reset hold time, and falls within the recommended 39pF–4.7µF range for low-leakage X7R ceramics.
Can MAX16057ATT23+ operate reliably at 1.2V supply voltage?
Yes, MAX16057ATT23+ is fully specified down to VCC = 1.1V and operates reliably at 1.2V. Its RESET output remains valid (with VOL ≤ 0.3V at 50µA sink), and internal supervision circuitry functions correctly-enabling use in ultra-low-voltage applications such as energy-harvesting sensors or backup-supply monitoring.
Is the exposed pad (EP) on MAX16057ATT23+ electrically connected?
No, the exposed pad (EP) on MAX16057ATT23+ is not electrically connected to any internal circuit. It is a thermal pad intended for soldering to the PCB ground plane to improve heat dissipation-reducing θJA from ~42°C/W to lower effective values-and enhancing EMI performance. Leaving it unconnected degrades thermal performance but does not affect electrical operation.
MAX16057ATT23+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.313V
- 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)
MAX16057ATT23+ FAQ
1.How can I place an order for MAX16057ATT23+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16057ATT23+ 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 MAX16057ATT23+ reliable?
The price and inventory of MAX16057ATT23+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16057ATT23+ is usually 5 days.
3.What payment methods are accepted for MAX16057ATT23+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16057ATT23+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16057ATT23+?
MAX16057ATT23+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16057ATT23+ 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 MAX16057ATT23+?
For technical support, including MAX16057ATT23+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16057ATT23+ requirements.
6.How does Aetrix verify that MAX16057ATT23+ is sourced from the original manufacturer or authorized distributors?
All MAX16057ATT23+ 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 MAX16057ATT23+ meets industry standards.
7.What is the process for return or replacement of MAX16057ATT23+?
All MAX16057ATT23+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16057ATT23+, 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 MAX16057ATT23+ part is unused and in its original packaging.
Return procedure for MAX16057ATT23+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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