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Analog Devices Inc./Maxim Integrated MAX16059ATT22+T
- Part No.:
- MAX16059ATT22+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX16059ATT22+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,344
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Product details
Overview
MAX16059ATT22+T from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 2.235V reset threshold, 125nA typical supply current, capacitor-adjustable reset timeout (10.5–17.0ms), and no watchdog timer. It asserts active-low RESET during VCC brownout, manual reset, or power-up sequencing in portable medical and battery-powered systems.
For engineers reviewing the MAX16059ATT22+T datasheet, MAX16059ATT22+T pinout, MAX16059ATT22+T application, or MAX16059ATT22+T equivalent, this page delivers verified technical context, exact pin functions, real-world timing behavior, thermal performance at +125°C, and validated alternative options for low-power system supervision.
Technical Context
The MAX16059ATT22+T implements a precision bandgap-based voltage monitor with ±2.5% threshold accuracy over -40°C to +125°C and 0.5% hysteresis. Its reset timeout is set by an external capacitor on SRT, generating a fixed delay via internal ramp-current/threshold circuitry (IRAMP1 = 210–240nA, VRAMP1 = 1.173–1.297V).
Unlike MAX16056/MAX16058 variants, it omits WDI, WDS, and SWT pins-confirming absence of watchdog functionality. The open-drain RESET output supports logic-level translation up to 5.5V and guarantees valid assertion down to VCC = 1.1V, with VOL ≤ 0.3V at 50µA sink current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 125nA typical at VCC = 1.8V, -40°C to +125°C - enables multi-year battery life in glucose monitors and pagers |
| Reset Threshold | 2.235V (typ), ±2.5% over temperature - factory-trimmed for precise brownout detection at 2.2V rails |
| Reset Timeout | 10.5–17.0ms with 2700pF SRT capacitor - ensures reliable µP initialization after power recovery |
| Operating Range | VCC = 1.1V to 5.5V - supports single-cell Li-ion, 1.8V/2.5V/3.3V/5V logic domains |
| Output Type | Open-drain RESET - allows level-shifting to higher-voltage µP I/O or wired-OR reset bus |
| Temperature Range | -40°C to +125°C - qualified for automotive cabin and industrial metering environments |
| Package | 6-pin TDFN (3mm × 3mm, EP) - compact footprint with exposed pad for thermal dissipation |
Pinout & Package
MAX16059ATT22+T uses a 6-pin TDFN-EP package (3mm × 3mm, 0.75mm height) with exposed pad (EP) intended for grounding to improve thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RESET | Open-drain reset output | Active-low signal asserted during VCC < 2.235V, MR low, or power-up; requires external pullup |
| 2 GND | Ground reference | Primary return path for internal circuitry and SRT/SWT capacitor discharge |
| 3 N.C. | No connection | Unbonded die pad; must remain unconnected per datasheet - not usable as spare pin |
| 4 MR | Manual reset input | CMOS-compatible active-low trigger; 250ns MR-to-RESET delay; no internal pullup |
| 5 SRT | Reset timeout capacitor terminal | Connects to GND via external capacitor (39pF–4.7µF) to set tRP = 5.15×10⁶ × CSRT seconds |
| 6 VCC | Power supply input | Monitored voltage rail (1.1–5.5V); bypass with 0.1µF ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 125nA typical supply current enables >10-year operation on CR2032 coin cell in patient monitors |
| Capacitor-adjustable tRP | External SRT capacitor sets reset hold time from 0.5ms to 24s - eliminates need for fixed-timer ICs |
| 1.1V VCC operation guarantee | RESET remains valid down to VCC = 1.1V - ensures deterministic reset before µP core loses state |
| Transient immunity | Rejects 100mV VCC glitches ≤40µs - prevents spurious resets in noisy automotive/metering environments |
| Open-drain flexibility | RESET sinks up to 3.2mA at VCC ≥4.5V - supports direct interface to 5V µP inputs or shared reset buses |
Applications
| Glucose Monitoring Systems | Patient Vital Sign Monitors |
|---|---|
Use Scenario: Portable handheld glucose meters powered by single AAA alkaline cells with variable voltage decay. IC Role / Device Role / Timing Role: Supervises 2.2V analog front-end and 1.8V MCU supply; asserts RESET until stable 2.235V rail is confirmed. Use Value: Prevents firmware corruption during battery sag below 2.2V while consuming only 125nA - extends clinical device runtime. |
Use Scenario: Battery-backed ECG/SpO₂ modules requiring fail-safe boot under fluctuating medical-grade power rails. IC Role / Device Role / Timing Role: Monitors primary 3.3V system rail; generates 14ms RESET pulse after VCC recovery to ensure ADC calibration completes. Use Value: Guarantees µP reset validity down to 1.1V VCC - avoids undefined states during brownout recovery in life-critical devices. |
| Smart Utility Meters | Industrial HVAC Controllers |
Use Scenario: AMI meters operating from supercapacitors during mains outage, with slow VCC ramp-up from 0.8V to 3.3V. IC Role / Device Role / Timing Role: Detects 2.235V threshold crossing on 3.3V rail; holds RESET low for adjustable duration using 2700pF SRT cap. Use Value: Eliminates need for discrete RC timing network - reduces BOM count and improves long-term timing stability vs. resistor drift. |
Use Scenario: DIN-rail mounted HVAC controllers exposed to wide ambient (-40°C to +85°C) and conducted transients. IC Role / Device Role / Timing Role: Provides robust reset supervision for ARM Cortex-M4 MCU; rejects 30µs/80mV VCC transients per spec. Use Value: Delivers guaranteed -40°C to +125°C operation with ±2.5% threshold accuracy - meets IEC 61000-4-4 compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16057ATT22+T | Push-pull RESET output (vs. open-drain); identical threshold, timing, and package | Requires no external pullup; unsuitable for wired-OR reset busing or level-shifting | Select when driving single µP with 1.8V/2.5V I/O and no shared reset bus |
| TPS3808G125DBVR | Fixed 1.25V threshold, 350nA ICC, SOT-23-6 package; no capacitor-adjustable timeout | Limited to 1.25V rails; reset timeout fixed at 200ms - less flexible for custom µP startup sequences | Select for cost-sensitive 1.25V systems where adjustable timing is unnecessary |
Compared with MAX16059ATT22+T, MAX16057ATT22+T offers push-pull drive but forfeits level-shifting capability, while TPS3808G125DBVR trades adjustability and ultra-low ICC for lower unit cost and simpler layout - all three maintain -40°C to +125°C qualification.
Availability
MAX16059ATT22+T is available at Aetrix Electronics and suitable for portable medical devices, smart utility meters, and industrial HVAC controllers requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX16059ATT22+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 supervision in battery-critical applications like glucose monitors and portable diagnostics - prioritizing nanoamp ICC, wide VCC range, and automotive-grade reliability.
FAQ
What is the factory-trimmed reset threshold voltage for MAX16059ATT22+T?
The MAX16059ATT22+T has a factory-trimmed reset threshold of 2.235V (typical), with ±2.5% tolerance over -40°C to +125°C. This value corresponds to the "22" suffix in the part number per Table 1 of the datasheet, and is laser-trimmed during production to ensure precision without external calibration. The MAX16059ATT22+T does not require user adjustment of VTH.
Does MAX16059ATT22+T include a watchdog timer function?
No, the MAX16059ATT22+T does not include a watchdog timer. As confirmed in the Pin Configurations diagram and "Typical Operating Circuit" table, MAX16059 variants omit WDI, WDS, and SWT pins - distinguishing them from MAX16056/MAX16058. The MAX16059ATT22+T provides only reset supervision and manual reset, with no watchdog timeout or related inputs.
What capacitor value sets the standard 14.18ms reset timeout for MAX16059ATT22+T?
A 2700pF capacitor connected between SRT and GND sets the nominal reset timeout of 14.18ms for MAX16059ATT22+T, as specified in the Electrical Characteristics table. This value is derived from the formula tRP = 5.15 × 10⁶ × CSRT (seconds), yielding 14.18ms at 2700pF. Ceramic X7R capacitors are recommended for low leakage and temperature stability.
Can MAX16059ATT22+T operate reliably at VCC = 1.2V?
Yes, MAX16059ATT22+T is fully specified to operate at VCC = 1.2V within the -40°C to 0°C range per the Electrical Characteristics table. Its RESET output remains valid down to VCC = 1.1V, and supply current is guaranteed at 125–175nA (typ/max) at 1.8V, scaling predictably lower at 1.2V. This makes MAX16059ATT22+T suitable for single-cell NiMH or low-VCC energy harvesting systems.
What is the maximum sink current capability of the RESET output on MAX16059ATT22+T?
The open-drain RESET output of MAX16059ATT22+T sinks up to 3.2mA while maintaining VOL ≤ 0.4V at VCC ≥ 4.5V, and 1.2mA at VOL ≤ 0.3V for VCC ≥ 2.7V. At VCC = 1.8V, it sinks 50µA with VOL ≤ 0.3V. These values are production-tested and guaranteed across temperature, enabling direct drive of µP reset inputs or small FET gates without buffering.
MAX16059ATT22+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.188V
- 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)
MAX16059ATT22+T FAQ
1.How can I place an order for MAX16059ATT22+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16059ATT22+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 MAX16059ATT22+T reliable?
The price and inventory of MAX16059ATT22+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16059ATT22+T is usually 5 days.
3.What payment methods are accepted for MAX16059ATT22+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16059ATT22+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16059ATT22+T?
MAX16059ATT22+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16059ATT22+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 MAX16059ATT22+T?
For technical support, including MAX16059ATT22+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16059ATT22+T requirements.
6.How does Aetrix verify that MAX16059ATT22+T is sourced from the original manufacturer or authorized distributors?
All MAX16059ATT22+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 MAX16059ATT22+T meets industry standards.
7.What is the process for return or replacement of MAX16059ATT22+T?
All MAX16059ATT22+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16059ATT22+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 MAX16059ATT22+T part is unused and in its original packaging.
Return procedure for MAX16059ATT22+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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