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Analog Devices Inc./Maxim Integrated MAX16059ATT46+T
- Part No.:
- MAX16059ATT46+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16059ATT46+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,236
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Product details
Overview
MAX16059ATT46+T from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 4.625V reset threshold, 125nA typical supply current, capacitor-adjustable reset timeout (10.5–17.0ms), and no watchdog timer. It asserts an active-low push-pull RESET output during VCC brownout, manual reset, or power-up sequencing in battery-powered medical and portable electronics.
For engineers reviewing the MAX16059ATT46+T datasheet, MAX16059ATT46+T pinout, MAX16059ATT46+T application, or MAX16059ATT46+T equivalent, key selection criteria include its 4.625V ±2.5% threshold over -40°C to +125°C, guaranteed RESET validity down to VCC = 1.1V, open-drain/push-pull output option, and compatibility with low-leakage ceramic timing capacitors on SRT.
Technical Context
The MAX16059ATT46+T implements a precision bandgap-based voltage monitor with 0.5% hysteresis and internal ramp-compare architecture for reset timeout generation via external SRT capacitor. Its reset assertion logic combines VCC monitoring, MR input sampling, and deterministic timeout delay-no internal oscillator or RC timing element is used.
This variant belongs to the MAX16057/MAX16059 family and excludes all watchdog-related pins (WDI, SWT, WDS) and functions. It uses a dedicated 6-pin TDFN-EP package with exposed pad tied to GND, optimized for space-constrained automotive-grade applications requiring high transient immunity and nanoscale quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.625V (typ), ±2.5% over -40°C to +125°C - sets precise brownout detection point for 5V rail monitoring |
| Supply Current | 125nA (typ) at VCC = 1.8V, -40°C to +125°C - enables multi-year operation on coin-cell batteries |
| Reset Timeout | 10.5–17.0ms (with CSRT = 2700pF) - configurable via external capacitor to match µP reset hold requirements |
| Operating Voltage | 1.1V to 5.5V - ensures valid RESET assertion even during deep brownout conditions |
| Output Type | Push-pull RESET - eliminates need for external pullup resistor in most host interface configurations |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial embedded environments |
| Hysteresis | 0.5% of VTH - prevents chatter during slow VCC recovery near threshold |
Pinout & Package
MAX16059ATT46+T is housed in a 3mm × 3mm, 6-pin TDFN-EP package with exposed pad (EP) intended for grounding to improve thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Active-low reset output | Push-pull driver capable of sinking 50µA @ 0.3V or sourcing 200µA @ 0.8×VCC - directly interfaces µP RESET pin without external components |
| 2 GND | Ground reference | Primary return path for internal circuitry and SRT/CSRT capacitor discharge - must be low-impedance connection |
| 3 MR | Manual reset input | CMOS-compatible active-low input with 200ns glitch rejection - requires external pullup if unused; no internal pullup |
| 4 SRT | Reset timeout capacitor terminal | Connects to low-leakage (<10nA) ceramic capacitor (e.g., 2700pF X7R) to set tRP = 5.15×10⁶ × CSRT seconds |
| 5 VCC | Supply voltage input | Monitored rail input (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND for noise immunity |
| 6 N.C. | No connection | Not internally bonded - leave unconnected; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year shelf life in battery-backed systems |
| Factory-trimmed VTH | 4.625V threshold with ±2.5% tolerance over full temperature range eliminates calibration overhead |
| Capacitor-adjustable tRP | Reset timeout programmable from ~0.2ms to >24s using standard ceramic capacitors (39pF–4.7µF) |
| VCC ≥ 1.1V RESET guarantee | Ensures deterministic reset behavior during deep undervoltage events where most µPs fail to operate |
| Transient immunity | Immune to 100mV VCC glitches ≤40µs duration - reduces false resets in noisy automotive environments |
Applications
| Glucose Monitors | Patient Monitors |
|---|---|
Use Scenario: Portable handheld glucose meters powered by CR2032 coin cells with intermittent usage over multi-year service life. IC Role / Device Role / Timing Role: Supervises 3.3V system rail and triggers controlled µP reset during battery insertion, low-voltage shutdown, or user-initiated recalibration. Use Value: 125nA ICC extends battery life beyond 5 years; 4.625V threshold ensures reliable reset before ADC reference collapse. |
Use Scenario: Battery-backed bedside patient monitors requiring continuous data logging and alarm integrity during AC power loss. IC Role / Device Role / Timing Role: Monitors main 5V supply and asserts RESET to halt firmware execution during brownout, enabling safe EEPROM save and backup power switchover. Use Value: Guaranteed RESET validity down to VCC = 1.1V prevents silent corruption; push-pull output drives µP RESET directly without pullup. |
| Metering (Smart Meters) | HVAC Controllers |
Use Scenario: ANSI C12.1-compliant electricity meters deployed in outdoor enclosures with wide ambient temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: Provides cold-start reset supervision for meter SoC during winter power restoration after grid outage. Use Value: -40°C to +125°C qualification ensures operation in sealed enclosures; 0.5% hysteresis prevents oscillation during slow VCC ramp. |
Use Scenario: Commercial HVAC zone controllers powered by 24VAC-derived 5V rails subject to transformer inrush and relay switching noise. IC Role / Device Role / Timing Role: Detects 5V rail collapse during transformer saturation events and holds µP in reset until stable regulation resumes. Use Value: Immunity to 40µs/100mV transients eliminates nuisance resets; 3mm × 3mm TDFN saves PCB area in dense control modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16057ATT46+T | Same 6-pin TDFN package, identical 4.625V threshold and reset timeout architecture, but push-pull output (vs. MAX16059ATT46+T's open-drain) | Preferred where host µP requires active-high reset release or lacks internal pullup | Select MAX16057ATT46+T when push-pull drive simplifies interface; MAX16059ATT46+T suits level-shifting or wired-OR reset buses |
| TPS3808G33DBVR | 3.3V fixed threshold, 1.8µA ICC (14× higher), SOT-23-6 package, no capacitor-adjustable timeout | Suitable for cost-sensitive consumer applications where fixed 200ms timeout suffices | Choose TPS3808G33DBVR only if 4.625V threshold and nanoscale ICC are not required; not drop-in compatible |
Compared with MAX16057ATT46+T, MAX16059ATT46+T offers open-drain flexibility for bus sharing, while TPS3808G33DBVR trades ultra-low power and adjustable timing for lower cost and simpler BOM-but cannot replace MAX16059ATT46+T in battery-critical or precision-threshold designs.
Availability
MAX16059ATT46+T is available at Aetrix Electronics and suitable for glucose monitors, patient monitors, smart metering, and HVAC controllers requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX16059ATT46+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 designed specifically for ultra-low-power, high-reliability supervisory functions in automotive, medical, and industrial battery-operated systems demanding nanoscale quiescent current and AEC-Q100-aligned robustness.
FAQ
What is the exact reset threshold voltage of MAX16059ATT46+T?
The MAX16059ATT46+T features a factory-trimmed reset threshold of 4.625V (typical), with ±1.5% tolerance at +25°C and ±2.5% over the full -40°C to +125°C operating range. This value corresponds to the "46" suffix per Table 1 in the datasheet and is laser-trimmed during production to ensure accuracy without external calibration.
Does MAX16059ATT46+T include a watchdog timer function?
No, MAX16059ATT46+T does not include a watchdog timer. It belongs to the MAX16057/MAX16059 variant group, which omits WDI, SWT, and WDS pins and associated circuitry. Only MAX16056/MAX16058 variants support watchdog functionality - confirmed by pin configuration diagrams and ordering information tables.
What package type and dimensions does MAX16059ATT46+T use?
MAX16059ATT46+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 thermal pad on the PCB for optimal thermal performance and EMI reduction.
How is the reset timeout period set on MAX16059ATT46+T?
The reset timeout period on MAX16059ATT46+T is set by connecting an external capacitor (CSRT) between the SRT pin and GND. The relationship is tRP = 5.15 × 10⁶ × CSRT (in seconds). For example, a 2700pF capacitor yields 14.18ms typical timeout - values are validated in Table 2 and supported by the internal ramp-current/threshold architecture.
Is MAX16059ATT46+T qualified for automotive applications?
Yes, MAX16059ATT46+T is fully specified over the -40°C to +125°C automotive temperature range and meets AEC-Q100 stress test requirements for Grade 0 devices. Its 125nA supply current, high transient immunity, and guaranteed RESET validity down to VCC = 1.1V make it suitable for under-hood and infotainment subsystems.
MAX16059ATT46+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:
- 4.625V
- 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)
MAX16059ATT46+T FAQ
1.How can I place an order for MAX16059ATT46+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16059ATT46+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 MAX16059ATT46+T reliable?
The price and inventory of MAX16059ATT46+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16059ATT46+T is usually 5 days.
3.What payment methods are accepted for MAX16059ATT46+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16059ATT46+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16059ATT46+T?
MAX16059ATT46+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16059ATT46+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 MAX16059ATT46+T?
For technical support, including MAX16059ATT46+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16059ATT46+T requirements.
6.How does Aetrix verify that MAX16059ATT46+T is sourced from the original manufacturer or authorized distributors?
All MAX16059ATT46+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 MAX16059ATT46+T meets industry standards.
7.What is the process for return or replacement of MAX16059ATT46+T?
All MAX16059ATT46+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16059ATT46+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 MAX16059ATT46+T part is unused and in its original packaging.
Return procedure for MAX16059ATT46+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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