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Analog Devices Inc./Maxim Integrated MAX16058ATA30+T
- Part No.:
- MAX16058ATA30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16058ATA30+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,253
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Product details
Overview
MAX16058ATA30+T from Analog Devices is an ultra-low-power microprocessor supervisory IC with open-drain RESET output, factory-trimmed 3.000V reset threshold (±2.5% over -40°C to +125°C), 125nA typical supply current at 1.8V, capacitor-adjustable reset timeout (10.5–17.0ms with 2700pF), and integrated watchdog timer with WDS-selectable 128× extended timeout mode. It monitors single-supply systems in battery-powered medical and portable electronics.
For engineers reviewing the MAX16058ATA30+T datasheet, MAX16058ATA30+T pinout, MAX16058ATA30+T application, or MAX16058ATA30+T equivalent, key selection criteria include its 3.0V reset threshold accuracy across automotive temperature range, open-drain output compatibility with mixed-voltage logic, watchdog capacitor-open detect function, and guaranteed RESET validity down to VCC = 1.1V.
Technical Context
The MAX16058ATA30+T implements a precision bandgap-based voltage monitor with 0.5% hysteresis and a dual-ramp capacitor-timed architecture: SRT pin controls reset timeout via linear ramp current (210–240nA) charging to VRAMP1 (1.235V), while SWT/WDS jointly configure watchdog timeout using identical ramp parameters and a 6.4ms clock period. Its BiCMOS process enables stable operation from 1.1V to 5.5V supply.
It features active-low manual reset (MR) with 250ns delay and glitch rejection, watchdog input (WDI) sensitive to 150ns pulses, and transient immunity validated up to 40µs for 100mV VCC overdrive. The exposed-pad 8-pin TDFN package supports thermal performance of θJA = 41°C/W and operates fully specified from -40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.000V ±2.5% over full -40°C to +125°C range - ensures reliable brownout detection across automotive and industrial environments |
| Supply Current | 125nA typical at 1.8V/25°C - enables multi-year battery life in always-on medical sensors and wearables |
| Reset Timeout | 10.5–17.0ms with 2700pF on SRT - configurable to match µP power-up sequencing requirements |
| Watchdog Timeout | 5–9.5ms base period (TA = -40°C to +125°C), extendable ×128 via WDS - supports flexible firmware watchdog servicing intervals |
| Operating Voltage | 1.1V to 5.5V - compatible with Li-ion, coin-cell, and multi-rail embedded systems |
| Output Type | Open-drain RESET - allows level-shifting to higher logic voltages (up to 5.5V) with external pull-up |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial control applications |
Pinout & Package
MAX16058ATA30+T uses an 8-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected to GND for thermal and EMI performance. Pin 1 is RESET (open-drain), Pin 2 is GND, Pin 3 is SWT (watchdog timeout capacitor input), Pin 4 is MR (manual reset input), Pin 5 is SRT (reset timeout capacitor input), Pin 6 is WDS (watchdog select input), Pin 7 is WDI (watchdog input), and Pin 8 is VCC. Pin 5 (N.C.) is not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain reset output | Asserts low during VCC undervoltage, MR activation, or watchdog timeout; requires external pull-up for logic-high state |
| 2 - GND | Ground reference | Primary return path for all internal circuits and external capacitors (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 pull-up - 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 - WDS | Watchdog select input | GND = normal mode (tWD); VCC = extended mode (tWD ×128); transition clears watchdog counter |
| 7 - WDI | Watchdog input | Falling edge resets watchdog timer; pulse width ≥150ns required for reliable detection |
| 8 - VCC | Power supply input | Monitored supply rail; bypass with 0.1µF ceramic capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-adjustable reset timeout | Enables precise matching to µP power-up timing without firmware changes or fixed-delay ICs |
| Watchdog timer with WDS-selectable 128× extension | Supports both short-interval firmware supervision and long-duration sleep-mode monitoring in one device |
| Watchdog capacitor open-detect function | Prevents silent failure by asserting continuous RESET if SWT connection is broken during PCB assembly |
| Guaranteed RESET validity down to VCC = 1.1V | Ensures deterministic reset behavior during deep brownout conditions where many supervisors fail |
| Power-supply transient immunity | Rejects 40µs/100mV VCC glitches - eliminates false resets in noisy automotive or industrial power rails |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Continuous glucose sensing in wearable patch pumps requiring multi-year battery life and fail-safe power management. IC Role / Device Role / Timing Role: Supervises main Li-ion supply (3.0V nominal), asserts RESET during voltage sag to prevent corrupted sensor readings or insulin dosing errors. Use Value: 125nA quiescent current extends battery life beyond 3 years; open-drain RESET interfaces directly to low-voltage µP I/O without level shifters. | Use Scenario: Portable bedside vital sign monitors operating from rechargeable batteries in clinical and home settings. IC Role / Device Role / Timing Role: Monitors 3.3V system rail and provides watchdog supervision of ARM Cortex-M4 firmware execution. Use Value: Adjustable watchdog timeout (via SWT capacitor) aligns precisely with firmware main loop timing; WDS pin enables field-upgradable timeout extension. |
| Smart Meters | HVAC Controllers |
Use Scenario: ANSI C12.19-compliant electricity meters deployed in outdoor utility cabinets with wide ambient temperature swings. IC Role / Device Role / Timing Role: Provides certified reset supervision for metrology SoC across -40°C to +125°C, with immunity to grid-induced transients. Use Value: ±2.5% reset threshold tolerance over full temperature range meets IEC 62053-21 accuracy requirements; 41°C/W θJA enables reliable operation without heatsinking. | Use Scenario: Embedded HVAC control boards in commercial rooftop units exposed to engine bay-level heat and vibration. IC Role / Device Role / Timing Role: Resets HVAC microcontroller during 12V battery brownouts caused by compressor startup surges. Use Value: 40µs transient immunity prevents nuisance resets during high-dI/dt load switching; exposed-pad TDFN enhances thermal stability under sustained 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATA30+T | Push-pull RESET output; same 3.0V threshold, 125nA ICC, and watchdog functionality | Requires no external pull-up resistor; unsuitable where level-shifting or wired-OR reset buses are needed | Select when driving CMOS inputs directly and minimizing external components is critical |
| TLV809E30DBZR | Fixed 3.0V threshold, no watchdog, 0.5µA ICC, SOT-23-3 package | Lacks capacitor-adjustable timing and system supervision features; only provides basic reset | Select for cost-sensitive, space-constrained designs where watchdog and timing flexibility are unnecessary |
Compared with MAX16056ATA30+T, the push-pull variant eliminates external pull-up needs but forfeits voltage-level flexibility; versus TLV809E30DBZR, MAX16058ATA30+T adds critical watchdog supervision and nano-power operation essential for battery longevity in medical and metering applications.
Availability
MAX16058ATA30+T is available at Aetrix Electronics and suitable for glucose monitors, patient monitors, smart meters, and HVAC controllers requiring stable component supply across automotive-grade temperature ranges and long-life battery operation.
Supply support for MAX16058ATA30+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.
The MAX16056–MAX16059 family was designed specifically for ultra-low-power supervisory functions in battery-critical applications such as portable medical devices and energy metering, emphasizing nanoscale current consumption and robust reset timing control.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16058ATA30+T?
The MAX16058ATA30+T has a factory-trimmed reset threshold of 3.000V, 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 "30", and applies specifically to the MAX16058ATA30+T variant - not the broader MAX16056–MAX16059 family.
Does MAX16058ATA30+T support watchdog timer disable functionality?
Yes, MAX16058ATA30+T supports watchdog disable by connecting the SWT pin directly to GND. When SWT is grounded, the watchdog timer function is disabled and RESET will not assert due to watchdog timeout. This behavior is explicitly documented in the Pin Description and Detailed Description sections of the datasheet.
What is the maximum recommended capacitor value for the SRT pin on MAX16058ATA30+T?
The maximum recommended capacitor value for the SRT pin on MAX16058ATA30+T is 4.7µF, as stated in the Pin Description section. Using capacitors larger than this may cause timing inaccuracies or exceed design limits; the datasheet specifies 39pF to 4.7µF as the valid range for reliable reset timeout configuration in the MAX16058ATA30+T.
Can MAX16058ATA30+T operate with a 1.2V supply voltage?
Yes, MAX16058ATA30+T operates with supply voltages as low as 1.1V, per the Absolute Maximum Ratings and Electrical Characteristics tables. At 1.2V, it maintains full functionality including reset assertion, manual reset response, and watchdog timing - though the RESET output sink capability decreases below 1.8V, as detailed in the VOL specification table.
Is the exposed pad (EP) on MAX16058ATA30+T required to be connected to ground?
Yes, the exposed pad (EP) on MAX16058ATA30+T must be connected to GND, as indicated in the Pin Configurations diagram footnote ("*CONNECT EXPOSED PAD TO GND"). This connection is mandatory for proper thermal dissipation (θJC = 8°C/W) and EMI performance; leaving EP unconnected violates the recommended layout and risks thermal overload or noise susceptibility.
MAX16058ATA30+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:
- 3V
- 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)
MAX16058ATA30+T FAQ
1.How can I place an order for MAX16058ATA30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16058ATA30+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 MAX16058ATA30+T reliable?
The price and inventory of MAX16058ATA30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16058ATA30+T is usually 5 days.
3.What payment methods are accepted for MAX16058ATA30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16058ATA30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16058ATA30+T?
MAX16058ATA30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16058ATA30+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 MAX16058ATA30+T?
For technical support, including MAX16058ATA30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16058ATA30+T requirements.
6.How does Aetrix verify that MAX16058ATA30+T is sourced from the original manufacturer or authorized distributors?
All MAX16058ATA30+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 MAX16058ATA30+T meets industry standards.
7.What is the process for return or replacement of MAX16058ATA30+T?
All MAX16058ATA30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16058ATA30+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 MAX16058ATA30+T part is unused and in its original packaging.
Return procedure for MAX16058ATA30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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