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Analog Devices Inc./Maxim Integrated MAX16057ATT16+T
- Part No.:
- MAX16057ATT16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16057ATT16+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,629
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Product details
Overview
MAX16057ATT16+T from Analog Devices is a nanoPower microprocessor supervisory circuit in a 6-pin TDFN package, designed to monitor single-supply VCC (1.1V–5.5V) and assert an active-low push-pull RESET when voltage drops below factory-trimmed 1.575V threshold, manual reset is triggered, or watchdog timeout occurs - though MAX16057 lacks watchdog functionality. It delivers ultra-low 125nA typical supply current and supports capacitor-adjustable reset timeout (e.g., 14.18ms with 2700pF), enabling reliable power-on reset in battery-constrained medical and portable systems.
For engineers reviewing the MAX16057ATT16+T datasheet, MAX16057ATT16+T pinout, MAX16057ATT16+T application, or MAX16057ATT16+T equivalent, key selection criteria include its 1.575V reset threshold tolerance (±2.5% over −40°C to +125°C), guaranteed RESET validity down to VCC = 1.1V, push-pull output drive capability (0.3V VOL at 50µA), and absence of watchdog timer - distinguishing it from MAX16056/MAX16058 variants.
Technical Context
The MAX16057ATT16+T implements a precision bandgap-based voltage monitor with hysteresis (0.5%) and an internal ramp-and-compare timing architecture for capacitor-adjusted reset timeout. Its SRT pin uses a 240nA (typ) ramp current charging an external capacitor to generate tRP = 5.15 × 10⁶ × CSRT seconds, with timing accuracy dependent on VRAMP1 (1.235V typ) and IRAMP1 tolerances.
Unlike watchdog-equipped siblings, MAX16057ATT16+T omits WDI, SWT, WDS, and N.C. pins - resulting in a streamlined 6-pin configuration. Its push-pull RESET output ensures deterministic logic levels without external pull-ups, and its design guarantees valid reset assertion even during fast VCC transients (e.g., ≤40µs for 100mV overdrive).
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 | 1.575V (factory-trimmed, ±2.5% over temperature) - matches low-voltage microcontrollers like ARM Cortex-M0+. |
| Operating Voltage | 1.1V to 5.5V - supports Li-ion, 1.8V/3.3V logic rails, and brownout detection down to near-UVLO. |
| Reset Timeout | Adjustable from ~10.5ms to >24s via SRT capacitor (e.g., 2700pF → 14.18ms) - accommodates diverse MCU boot sequences. |
| Output Type | Push-pull active-low RESET - eliminates need for external pull-up and ensures fast, rail-to-rail logic transitions. |
| Temperature Range | −40°C to +125°C - qualified for automotive cabin and industrial metering environments. |
| Reset Validity | Guaranteed for VCC ≥ 1.1V - ensures reset integrity during deep brownout conditions before system collapse. |
Pinout & Package
MAX16057ATT16+T is housed in a 3mm × 3mm, 0.75mm height, 6-pin TDFN-EP package with exposed pad (EP) for thermal enhancement. The EP must be connected to GND per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Active-low push-pull reset output | Drives MCU /RST directly; sinks 50µA @ 0.3V or sources 200µA @ 0.8×VCC - no external components needed. |
| 2 GND | Ground reference | Primary return path for internal circuitry and EP thermal connection; must be low-impedance. |
| 3 MR | Manual reset input | CMOS-compatible active-low trigger; 1µs minimum pulse width; no internal pull-up - requires external VCC tie if unused. |
| 4 SRT | Reset timeout capacitor input | Connects to GND via timing capacitor; 240nA (typ) ramp current sets tRP = 5.15×10⁶ × CSRT seconds. |
| 5 VCC | Supply voltage input | Monitored rail input (1.1V–5.5V); bypass with 0.1µF ceramic capacitor to GND for noise immunity. |
| 6 EP | Exposed thermal pad | Internally connected to GND; soldering to PCB ground plane improves thermal performance and EMI robustness. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 125nA typical across full temperature range - extends battery life in glucose monitors and portable meters. |
| Factory-trimmed reset threshold | 1.575V with ±2.5% max deviation from −40°C to +125°C - eliminates calibration overhead in production test. |
| Capacitor-adjustable reset timeout | Configurable from 10.5ms to >24s using standard ceramic capacitors (39pF–4.7µF) - supports diverse boot-time requirements. |
| Push-pull RESET output | No external pull-up required; drives logic inputs directly and ensures fast rise/fall times under load. |
| High transient immunity | Rejects VCC glitches ≤40µs at 100mV overdrive - prevents spurious resets in noisy automotive or industrial power rails. |
| Valid reset down to 1.1V VCC | Ensures deterministic reset assertion during deep brownout, before MCU core loses functional integrity. |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Portable handheld device powered by CR2032 coin cell, requiring reliable power-on reset and long shelf life. IC Role / Device Role / Timing Role: Supervises 1.8V system rail and asserts RESET until stable; timing set by 2200pF SRT cap for 24.2ms delay. Use Value: 125nA supply current enables >10-year battery life; 1.575V threshold aligns with low-power MCU UVLO, preventing erratic startup. |
Use Scenario: Battery-backed clinical vital-signs recorder operating in ambulances and field clinics with wide ambient temperature swings. IC Role / Device Role / Timing Role: Monitors main 3.3V supply and provides fail-safe reset during engine cranking-induced dips. Use Value: −40°C to +125°C rating ensures reliability in uncontrolled environments; 0.5% hysteresis prevents chatter during slow VCC recovery. |
| Metering (Smart Energy) | HVAC Remote Sensors |
Use Scenario: Tamper-resistant electricity meter with isolated MCU, requiring secure, low-power supervision of auxiliary 2.5V rail. IC Role / Device Role / Timing Role: Provides reset signal synchronized to power-up sequence; SRT capacitor selected for 16.99ms timeout per Table 2. Use Value: Push-pull output interfaces directly with isolation barrier driver; no leakage-sensitive pull-up resistors needed. |
Use Scenario: Wireless temperature/humidity sensor node deployed in attics or outdoor enclosures with extreme thermal cycling. IC Role / Device Role / Timing Role: Supervises 3.0V LDO output powering RF SoC and sensors; reset asserted during cold-start voltage ramp. Use Value: Guaranteed RESET validity down to VCC = 1.1V ensures reset remains active until all peripherals are fully powered. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA16+T | 8-pin TDFN with watchdog timer, WDI/SWT/WDS pins, and identical 1.575V threshold and 125nA ICC. | Required where software watchdog monitoring of MCU execution is mandated (e.g., ISO 26262 ASIL-B systems). | Select MAX16056ATA16+T only if watchdog functionality is needed; MAX16057ATT16+T saves board space and BOM cost where it is not. |
| TPS3808G15DBVR | TI part with 1.5V threshold, 1.5µA ICC (typ), fixed 200ms reset timeout, SOT-23-5 package, no capacitor adjustment. | Suitable for cost-sensitive, non-battery-critical applications where fixed timeout suffices and higher supply current is acceptable. | Choose TPS3808G15DBVR for simpler designs without timing flexibility; MAX16057ATT16+T is superior for ultra-low-power, adjustable-timing use cases. |
Compared with MAX16056ATA16+T, MAX16057ATT16+T removes watchdog circuitry to reduce size, cost, and leakage - ideal for static reset-only roles. Against TPS3808G15DBVR, it trades fixed timing for capacitor-adjustability and cuts supply current by >10×, making it optimal for decade-life portable medical devices.
Availability
MAX16057ATT16+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and automotive cabin sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX16057ATT16+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 space- and energy-constrained systems - emphasizing nanoamp quiescent current, wide temperature operation, and flexible timing without external RC networks.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16057ATT16+T?
The MAX16057ATT16+T has a factory-trimmed reset threshold of 1.575V, with ±1.5% tolerance 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 "16", and applies exclusively to the MAX16057ATT16+T variant - not to other suffixes or family members.
Does MAX16057ATT16+T include a watchdog timer?
No, MAX16057ATT16+T does not include a watchdog timer. As explicitly stated in the General Description and Typical Operating Circuit table, only MAX16056/MAX16058 variants feature watchdog functionality. MAX16057/MAX16059 are designated "no watchdog" versions, omitting WDI, SWT, and WDS pins entirely - confirmed by the 6-pin pinout and Pin Description section.
What package type and dimensions does MAX16057ATT16+T use?
MAX16057ATT16+T uses a 6-pin TDFN-EP (Thin Dual Flat No-lead with Exposed Pad) package measuring 3mm × 3mm × 0.75mm. The exposed pad (EP) is electrically connected to GND and must be soldered to a PCB ground plane for optimal thermal and electrical performance, per Analog Devices' Package Information note.
How is the reset timeout period adjusted on MAX16057ATT16+T?
The reset timeout period on MAX16057ATT16+T is adjusted by connecting a capacitor between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (seconds), where CSRT is in farads. For example, a 2700pF capacitor yields 14.18ms. Recommended capacitor types are X7R ceramics with leakage <10nA, and values between 39pF and 4.7µF per Table 2.
Is MAX16057ATT16+T suitable for automotive applications?
Yes, MAX16057ATT16+T is fully specified over the −40°C to +125°C automotive temperature range and qualified for use in automotive cabin modules, body control units, and sensor nodes. Its 125nA supply current, 1.575V threshold, and transient immunity make it appropriate for 12V-system auxiliary rails and low-voltage MCU supervision in AEC-Q100-untested but automotive-grade designs.
MAX16057ATT16+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- 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)
MAX16057ATT16+T FAQ
1.How can I place an order for MAX16057ATT16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16057ATT16+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 MAX16057ATT16+T reliable?
The price and inventory of MAX16057ATT16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16057ATT16+T is usually 5 days.
3.What payment methods are accepted for MAX16057ATT16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16057ATT16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16057ATT16+T?
MAX16057ATT16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16057ATT16+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 MAX16057ATT16+T?
For technical support, including MAX16057ATT16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16057ATT16+T requirements.
6.How does Aetrix verify that MAX16057ATT16+T is sourced from the original manufacturer or authorized distributors?
All MAX16057ATT16+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 MAX16057ATT16+T meets industry standards.
7.What is the process for return or replacement of MAX16057ATT16+T?
All MAX16057ATT16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16057ATT16+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 MAX16057ATT16+T part is unused and in its original packaging.
Return procedure for MAX16057ATT16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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