Analog Devices Inc./Maxim Integrated MAX16059ATT17+

Overview

MAX16059ATT17+ from Analog Devices is a 6-pin TDFN ultra-low-power microprocessor supervisory circuit with factory-trimmed 1.665V reset threshold, 125nA typical supply current, capacitor-adjustable reset timeout (e.g., 14.18ms with 2700pF), and no watchdog timer. It provides push-pull active-low RESET output and operates across -40°C to +125°C for battery-powered medical and portable electronics.

For engineers reviewing the MAX16059ATT17+ datasheet, MAX16059ATT17+ pinout, MAX16059ATT17+ application, or MAX16059ATT17+ equivalent, key selection criteria include its 1.665V VTH tolerance (±2.5% over temperature), guaranteed RESET validity down to VCC = 1.1V, open-drain/push-pull output configuration options, and absence of watchdog functionality compared to MAX16056/MAX16058 variants.

Technical Context

The MAX16059ATT17+ implements a precision voltage monitor with hysteresis (0.5%) and an internal ramp-based timing circuit 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.

Unlike MAX16056/MAX16058, it omits WDI, WDS, and SWT pins-confirming no watchdog capability. The device asserts RESET when VCC falls below 1.665V (±2.5% over -40°C to +125°C), and holds RESET low for the full tRP after VCC recovers above VTH + VHYST.

Key Specifications

Pinout & Package

MAX16059ATT17+ uses a 6-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) recommended to be connected to GND. Pin 1 is RESET, Pin 2 is GND, Pin 3 is MR, Pin 4 is SRT, Pin 5 is VCC, and Pin 6 is NC (no connection). The exposed pad improves thermal performance (θJC = 9°C/W) and EMI shielding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supervisory circuit applications.

Compared with MAX16059ATT17+, MAX16057ATT17+ offers identical electrical behavior and drop-in compatibility, while TPS3808G16DBVR trades 125nA power for tighter VTH accuracy and simpler implementation at the cost of 10× higher quiescent current and inflexible timing.

Availability

MAX16059ATT17+ is available at Aetrix Electronics and suitable for glucose monitors, patient monitors, smart metering, and HVAC remote sensors requiring stable component supply across automotive and industrial temperature ranges.

Supply support for MAX16059ATT17+ 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 battery-critical medical, portable, and industrial equipment - prioritizing nanoamp ICC, wide VCC range, and capacitor-programmable timing over feature density.

FAQ

What is the factory-trimmed reset threshold voltage for MAX16059ATT17+?

The MAX16059ATT17+ has a factory-trimmed reset threshold voltage of 1.665V (typical), 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 "17", and applies exclusively to this part number - not to other variants like MAX16059ATT22+ (2.235V) or MAX16059ATT26+ (2.625V).

Does MAX16059ATT17+ include a watchdog timer?

No, MAX16059ATT17+ does not include a watchdog timer. It belongs to the MAX16057/MAX16059 series, which explicitly omits WDI, WDS, and SWT pins. The pin configuration shows only RESET, GND, MR, SRT, VCC, and NC - confirming absence of watchdog functionality. For watchdog capability, select MAX16056ATT17+ or MAX16058ATT17+ instead.

What is the recommended capacitor value for a 14.18ms reset timeout with MAX16059ATT17+?

The recommended capacitor value for a 14.18ms reset timeout with MAX16059ATT17+ is 2700pF on the SRT pin, as specified in Table 2 of the datasheet. This value assumes use of a low-leakage ceramic capacitor (e.g., X7R dielectric) and yields tRP = 5.15 × 10⁶ × 2700 × 10⁻¹² = 13.905ms (typ), rounded to 14.18ms in published data. Capacitor tolerance directly impacts timeout accuracy.

Can MAX16059ATT17+ operate reliably at VCC = 1.2V?

Yes, MAX16059ATT17+ is fully specified to operate at VCC = 1.2V within the -40°C to 0°C temperature range, and down to 1.1V minimum across all temperatures. Electrical Characteristics confirm VCC min = 1.1V, and RESET remains valid (guaranteed low-state drive) at VCC ≥ 1.1V - making it suitable for ultra-low-voltage energy harvesting and coin-cell applications where rail collapse occurs near 1.2V.

What is the thermal resistance of the MAX16059ATT17+ package?

The MAX16059ATT17+ uses a 6-pin TDFN-EP package with junction-to-ambient thermal resistance (θJA) of 42°C/W and junction-to-case thermal resistance (θJC) of 9°C/W, measured per JEDEC JESD51-7 on a four-layer board. These values enable reliable operation at full rated current up to +125°C ambient when the exposed pad (EP) is soldered to a thermal pad connected to GND plane.