Analog Devices Inc./Maxim Integrated MAX16150AUT+

Overview

MAX16150AUT+ from Maxim Integrated is a nanoPower pushbutton on/off controller with integrated switch debouncer, latched output, and one-shot interrupt generator. It accepts ±60V pushbutton inputs, delivers 20mA latched output with <100mV drop, consumes ≤20nA standby current, and operates from +1.3V to +5.5V across –40°C to +125°C - enabling battery freshness sealing and ultra-low-power system power control in portable medical sensors.

For engineers reviewing the MAX16150AUT+ datasheet, MAX16150AUT+ pinout, MAX16150AUT+ application, or MAX16150AUT+ equivalent, this page delivers verified timing parameters (50ms debounce / 8s shutdown), ESD-hardened PB_IN interface, SOT23-6 package mapping, and real-world use cases for disposable electronics and handheld instrumentation where mechanical switch noise and battery life are critical constraints.

Technical Context

The MAX16150AUT+ implements asynchronous switch detection with internal pull-up on PB_IN, fixed 50ms debounce and 8s shutdown timing (per Table 1, MAX16150A variant), and generates two distinct INT pulses: 32ms for standard press (>tDB) and 128ms for long press (>tSO). Its latch logic deasserts OUT upon extended button hold, enabling hardware-initiated shutdown without MCU intervention.

It features robust input protection including ±60V continuous PB_IN voltage tolerance, ±15kV HBM ESD rating, and 100mV hysteresis to reject contact bounce. The active-high push-pull OUT drives loads directly up to 20mA, while open-drain INT supports flexible MCU interrupt signaling with programmable pulse width via device variant selection.

Key Specifications

Pinout & Package

MAX16150AUT+ uses a 6-pin thin SOT23 package (package code U6+1), footprint-compatible with JEDEC MO-178AA, with 1.6mm × 2.9mm body and 0.95mm height. Thermal resistance θJA = 115°C/W on four-layer board.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar pushbutton on/off controller applications.

Compared with MAX16150AWT+T, MAX16150AUT+ trades board area for manufacturability and thermal performance; compared with TPS3808G01DBVR, it delivers complete hardware power sequencing - eliminating MCU firmware dependencies for power-up, shutdown, and ESD-hardened switch interfacing.

Availability

MAX16150AUT+ is available at Aetrix Electronics and suitable for portable medical sensors, handheld test meters, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX16150AUT+ 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and automotive applications.

The MAX16150AUT+ belongs to Maxim's nanoPower on/off controller product line, engineered specifically for battery-critical systems needing zero-software power enable, ESD-hardened switch interfaces, and multi-year shelf-life preservation.

FAQ

What is the debounce time and shutdown period configured for MAX16150AUT+?

The MAX16150AUT+ is the MAX16150A variant, with a fixed 50ms debounce time (tDB) and 8s shutdown period (tSO). These values are factory-trimmed and non-adjustable. A PB_IN low pulse exceeding 50ms latches OUT high and asserts a 32ms INT pulse; holding PB_IN low beyond 8s extends INT to 128ms and deasserts OUT - enabling hardware-initiated power-off without MCU involvement.

Can MAX16150AUT+ drive a 15mA load directly, and what is the expected voltage drop?

Yes, MAX16150AUT+ can drive a 15mA load directly at VCC = 3.3V with a guaranteed voltage drop of less than 100mV (VOL < 0.4V per datasheet, typical ~60mV). This allows direct powering of low-current peripherals like RTCs, op-amps, or digital sensors - eliminating the need for an external LDO in many ultra-low-power designs.

How does the CLR input behave when OUT is asserted, and what is its lockout timing?

When OUT is asserted, the CLR input remains functional but is ignored for a lockout period of 2×tINT (64ms for MAX16150AUT+, since tINT = 32ms). This prevents spurious resets during the critical window immediately after power-on. After lockout expires, pulling CLR low forces OUT low asynchronously - making it ideal for emergency shutdown or MCU-driven reset sequences.

Is MAX16150AUT+ compatible with lithium thionyl chloride (Li-SOCl₂) batteries operating down to 1.3V?

Yes, MAX16150AUT+ is fully specified from +1.3V to +5.5V and guarantees ≤20nA standby current across that range. At 1.3V, its VOH remains VCC – 0.02V and VOL stays below 0.2V at 200µA sink - ensuring reliable logic-level signaling even as Li-SOCl₂ batteries discharge near end-of-life, supporting >10-year deployment in sealed environmental loggers.

Does MAX16150AUT+ require external components for basic operation, and what is mandatory?

Only a 0.1µF ceramic bypass capacitor between VCC and GND is mandatory for stable operation. No external pullups, resistors, or timing components are needed - PB_IN has internal 1.4MΩ pullup, INT is open-drain (requires external pullup only if interfacing to MCU with different voltage rail), and all timing is internal. This minimizes BOM count and PCB area for cost-sensitive disposable electronics.