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Analog Devices Inc./Maxim Integrated MAX16059ATT26+T
- Part No.:
- MAX16059ATT26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16059ATT26+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,595
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Product details
Overview
The MAX16059ATT26+T from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 2.625V reset threshold, capacitor-adjustable reset timeout (10.5–17.0ms), push-pull RESET output, and no watchdog timer. It monitors single-supply VCC (1.1–5.5V), asserts active-low reset on brownout or manual reset, and guarantees valid RESET down to VCC = 1.1V - used in glucose monitors and portable medical devices requiring nanoscale power management.
For engineers reviewing the MAX16059ATT26+T datasheet, MAX16059ATT26+T pinout, MAX16059ATT26+T application, or MAX16059ATT26+T equivalent, key selection criteria include its 125nA typical supply current at 3.3V/25°C, -40°C to +125°C automotive temperature range, 3mm × 3mm TDFN-EP package, open-drain/push-pull output configuration, and absence of watchdog functionality compared to MAX16056/MAX16058 variants.
Technical Context
The MAX16059ATT26+T implements a precision voltage monitor with ±1.5% threshold accuracy at +25°C and ±2.5% over full temperature range, using internal bandgap reference and comparator architecture. Its reset timeout is set by external SRT capacitor (e.g., 2700pF yields 14.18ms), with ramp-current-based timing (IRAMP1 = 210–240nA) and fixed hysteresis (0.5%).
Unlike MAX16056/MAX16058, this variant omits WDI, SWT, and WDS pins - eliminating watchdog supervision entirely. The device features guaranteed RESET validity at VCC ≥ 1.1V, power-supply transient immunity up to 40µs for 100mV overdrive, and CMOS-compatible MR input with 1µs minimum pulse width and 200ns glitch rejection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 125nA typ at 3.3V/25°C; enables multi-year battery life in portable medical sensors |
| Reset Threshold | 2.625V (factory-trimmed, suffix "26" per Table 1); ±2.5% tolerance over -40°C to +125°C |
| Reset Timeout | 10.5–17.0ms (with 2700pF SRT capacitor); ensures reliable µP initialization after power recovery |
| Operating Voltage | 1.1V to 5.5V; supports Li-ion, coin-cell, and low-voltage logic rails without external regulation |
| Output Type | Push-pull RESET; eliminates need for external pullup resistor in most µP interface configurations |
| Temperature Range | -40°C to +125°C; qualified for under-hood automotive and industrial embedded environments |
| VCC to RESET Delay | 80µs; fast response to supply droop prevents code corruption during transient brownouts |
Pinout & Package
MAX16059ATT26+T uses a 6-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected to GND per datasheet recommendation. Pin 1 is RESET, Pin 2 is GND, Pin 3 is MR, Pin 4 is SRT, Pin 5 is VCC, and Pin 6 is N.C. (no connection). The EP must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low reset output | Push-pull driver; sinks 50µA @ 0.3V or sources 200µA @ 0.8×VCC; asserts during VCC < 2.625V or MR low |
| 2 - GND | Ground reference | Primary return path for all internal circuits and external capacitors (SRT, optional bypass) |
| 3 - MR | Manual reset input | CMOS-compatible active-low trigger; no internal pullup; requires external VCC tie if unused |
| 4 - SRT | Reset timeout capacitor terminal | Connects to GND via low-leakage ceramic capacitor (e.g., 2700pF X7R) to set tRP = 5.15×10⁶ × CSRT |
| 5 - VCC | Supply and monitored voltage input | Monitors own supply rail; bypass with 0.1µF ceramic capacitor to GND; operates down to 1.1V |
| 6 - N.C. | No connection | Not internally bonded; must remain unconnected on PCB; no routing or stubs allowed |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current at 3.3V/25°C reduces quiescent drain in battery-powered glucose meters |
| Capacitor-adjustable tRP | SRT pin enables precise reset timeout tuning (39pF–4.7µF range) without firmware or component changes |
| Guaranteed RESET validity | RESET remains functional down to VCC = 1.1V - critical for brownout detection before µP lockup |
| Transient immunity | Rejects ≤40µs VCC glitches at 100mV overdrive, preventing spurious resets in noisy automotive environments |
| Factory-trimmed VTH | 2.625V threshold (suffix "26") with ±2.5% tolerance over full temperature range ensures consistent trip point |
Applications
| Glucose Monitoring Systems | Patient Vital Sign Monitors |
|---|---|
|
Use Scenario: Portable handheld glucose meter powered by CR2032 coin cell with intermittent sensor activation. IC Role / Device Role / Timing Role: Supervises 3.0V regulated rail; asserts RESET during battery sag below 2.625V to prevent corrupted ADC readings or flash writes. Use Value: 125nA ICC extends battery life beyond 2 years; capacitor-tuned 14.18ms tRP ensures complete µP reset before sensor sampling resumes. |
Use Scenario: Wearable ECG patch operating on rechargeable LiPo with sleep/wake cycles. IC Role / Device Role / Timing Role: Monitors 1.8V system rail; triggers hardware reset when VCC drops due to high-current RF transmission bursts. Use Value: -40°C to +125°C rating supports body-worn operation; push-pull RESET eliminates pullup resistor, saving board space and leakage. |
| Smart Utility Meters | HVAC Environmental Sensors |
|
Use Scenario: Battery-backed gas/water meter with 10-year field deployment requirement. IC Role / Device Role / Timing Role: Supervises backup supercapacitor voltage; initiates controlled shutdown and nonvolatile memory save when VCC falls below 2.625V. Use Value: Guaranteed RESET validity at VCC ≥ 1.1V allows safe state capture even during deep discharge; 0.5% hysteresis prevents chatter near threshold. |
Use Scenario: Industrial HVAC duct sensor node powered by energy harvesting (thermoelectric generator). IC Role / Device Role / Timing Role: Ensures clean µP boot after cold-start from harvested energy; MR pin enables factory calibration reset via test fixture. Use Value: MR input with 1µs pulse width supports automated test; 3mm × 3mm TDFN-EP fits constrained PCB area near sensor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16057ATT26+T | Same 6-pin TDFN, 2.625V threshold, push-pull output, no watchdog - but differs only in top mark (ATS vs ATY) and tape/reel packaging code | Identical functional behavior; used interchangeably in production where top-mark traceability is not required | Select MAX16057ATT26+T if sourcing flexibility or alternate logistics channel is needed; same electrical and thermal specs |
| TPS3808G26DBVR | 2.63V threshold, 1.4µA ICC (vs 125nA), SOT-23-6 package, fixed 200ms reset timeout, no capacitor adjustment | Lacks adjustable reset timeout and ultra-low power; suitable for cost-sensitive industrial controls where 200ms is acceptable | Choose TPS3808G26DBVR only if nanoscale current is unnecessary and fixed timeout suffices; not drop-in due to higher ICC and different timing |
Compared with MAX16059ATT26+T, MAX16057ATT26+T offers identical performance with alternate marking, while TPS3808G26DBVR trades 11× higher supply current and fixed timeout for lower unit cost and broader distributor availability - making it viable only where battery life and timing flexibility are secondary.
Availability
MAX16059ATT26+T is available at Aetrix Electronics and suitable for glucose monitoring systems, patient vital sign monitors, smart utility meters, and HVAC environmental sensors requiring stable component supply across automotive-grade temperature ranges and long-life battery operation.
Supply support for MAX16059ATT26+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 supervisory functions in portable medical, automotive, and industrial battery-operated systems - emphasizing nanoscale ICC, wide VCC range, and capacitor-programmable timing.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16059ATT26+T?
The MAX16059ATT26+T has a factory-trimmed reset threshold of 2.625V, indicated by the "26" suffix per Table 1 in the datasheet. This value is guaranteed with ±1.5% tolerance at +25°C and ±2.5% over the full -40°C to +125°C operating range. The threshold is set during wafer sort and does not require external calibration.
Does MAX16059ATT26+T include a watchdog timer function?
No, the MAX16059ATT26+T does not include a watchdog timer. It belongs to the MAX16057/MAX16059 subset, which omits WDI, SWT, and WDS pins entirely. Watchdog functionality is exclusive to MAX16056/MAX16058 variants. The MAX16059ATT26+T provides only voltage monitoring and manual reset capability.
What capacitor value sets the standard reset timeout for MAX16059ATT26+T?
A 2700pF capacitor connected between the SRT pin and GND sets the standard reset timeout of 14.18ms for MAX16059ATT26+T, as specified in the Electrical Characteristics table. This value is derived from the formula tRP = 5.15 × 10⁶ × CSRT (with tRP in seconds and CSRT in farads), and is validated across temperature per Table 2.
Can MAX16059ATT26+T operate with a 1.2V supply voltage?
Yes, MAX16059ATT26+T operates with VCC as low as 1.1V, fully specified from 1.1V to 5.5V. At 1.2V, it maintains valid RESET assertion and deassertion, though sink/source drive strength decreases per the VOL/VOH specifications. The 125nA typical supply current is measured at VCC ≥ 1.8V, but ICC remains in the sub-µA range down to 1.1V.
What is the recommended PCB layout practice for the exposed pad (EP) on MAX16059ATT26+T?
The exposed pad (EP) on MAX16059ATT26+T must be connected to GND using multiple thermal vias (≥4, 0.3mm diameter) to an inner or bottom-layer ground plane. This ensures optimal thermal dissipation (θJC = 9°C/W) and electrical stability. Leaving EP unconnected or floating violates the Absolute Maximum Ratings and risks thermal runaway or reset instability under load.
MAX16059ATT26+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.625V
- 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)
MAX16059ATT26+T FAQ
1.How can I place an order for MAX16059ATT26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16059ATT26+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 MAX16059ATT26+T reliable?
The price and inventory of MAX16059ATT26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16059ATT26+T is usually 5 days.
3.What payment methods are accepted for MAX16059ATT26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16059ATT26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16059ATT26+T?
MAX16059ATT26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16059ATT26+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 MAX16059ATT26+T?
For technical support, including MAX16059ATT26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16059ATT26+T requirements.
6.How does Aetrix verify that MAX16059ATT26+T is sourced from the original manufacturer or authorized distributors?
All MAX16059ATT26+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 MAX16059ATT26+T meets industry standards.
7.What is the process for return or replacement of MAX16059ATT26+T?
All MAX16059ATT26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16059ATT26+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 MAX16059ATT26+T part is unused and in its original packaging.
Return procedure for MAX16059ATT26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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