Analog Devices Inc./Maxim Integrated MAX16150BWT+T

Overview

MAX16150BWT+T from Maxim Integrated is a nanoPower pushbutton on/off controller with integrated switch debouncer, latched output, and one-shot interrupt generator. It accepts ±60V robust PB_IN input, 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 disposable electronics.

For engineers reviewing the MAX16150BWT+T datasheet, MAX16150BWT+T pinout, MAX16150BWT+T application, or MAX16150BWT+T equivalent, key selection criteria include its 2s debounce / 16s shutdown timing profile, WLP package footprint, ±15kV HBM ESD protection at PB_IN, and ability to drive light loads directly without external FETs.

Technical Context

The MAX16150BWT+T implements a deterministic state machine for mechanical switch interface: PB_IN closure ≥2s (tDB) asserts OUT and triggers a 32ms INT pulse; closure >16s (tSO) extends INT to 128ms while maintaining OUT asserted - distinguishing it from MAX16150A which deasserts OUT under long press. Its internal PB_IN pullup (1.2–2.0MΩ) and hysteresis (100mV) reject bounce without external components.

Operation is fully functional down to 1.3V supply, with ISB ≤20nA at VCC = 5V and TA ≤+70°C. The open-drain INT output supports flexible system-level interrupt signaling, while CLR provides asynchronous reset with 2×tINT lockout window after OUT assertion - ensuring glitch immunity during critical transitions.

Key Specifications

Pinout & Package

MAX16150BWT+T is supplied in a 1mm × 1.5mm, 6-bump wafer-level package (WLP) with bottom-side solder bumps. This ultra-compact, RoHS-compliant package supports high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16150AUT+T, the MAX16150BWT+T offers identical functionality in a 75% smaller footprint - critical for space-constrained disposables - while TPL7407LDR lacks integrated debounce, latching, and interrupt generation, demanding additional ICs and firmware to replicate core MAX16150BWT+T capabilities.

Availability

MAX16150BWT+T is available at Aetrix Electronics and suitable for portable medical sensors, smart asset tags, and disposable diagnostic kits requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant WLP sourcing.

Supply support for MAX16150BWT+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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and consumer applications - emphasizing ultra-low-power operation and robust signal integrity.

The MAX16150 family targets battery-critical systems where zero-maintenance power control and factory-sealed longevity are mandatory - delivering nanoPower switching, ESD-hardened interfaces, and self-contained timing without MCU dependency.

FAQ

What is the debounce time configuration of the MAX16150BWT+T?

The MAX16150BWT+T features a fixed 2-second debounce time (tDB), meaning PB_IN must remain low for ≥2s to assert the latched OUT and generate the initial INT pulse. This value is factory-set and not user-adjustable. Unlike MAX16150A, the MAX16150BWT+T maintains OUT assertion even during long presses exceeding the 16s shutdown period (tSO), making it ideal for applications requiring persistent power enable with differentiated long-press signaling.

Does the MAX16150BWT+T require external components for basic operation?

No, the MAX16150BWT+T operates autonomously with only a 0.1μF VCC bypass capacitor required. Its internal PB_IN pullup (1.2–2.0MΩ), hysteresis (100mV), and ±60V tolerance eliminate external resistors, diodes, or clamps. The INT output is open-drain and needs only an external pullup; OUT is push-pull and drives loads directly. No firmware or clock source is needed - all timing is generated internally.

How does the MAX16150BWT+T differ from the MAX16150A variant?

The MAX16150BWT+T uses 2s debounce / 16s shutdown timing and retains OUT assertion during long PB_IN presses (>16s), whereas MAX16150A uses 50ms/8s timing and deasserts OUT under long press. Both generate extended 128ms INT pulses for long presses, but only MAX16150BWT+T sustains power delivery - making it suitable for "fire-and-forget" activation in disposables, while MAX16150A supports toggle-style power control.

Can the MAX16150BWT+T drive a 10mA load directly without voltage droop?

Yes. The MAX16150BWT+T's OUT pin delivers 20mA with less than 100mV voltage drop at VCC = 3.3V, so a 10mA load experiences <50mV drop - well within typical MCU or sensor supply tolerance. This enables direct power delivery to low-current subsystems (e.g., BLE radios, op-amps, or ADCs), eliminating the need for external MOSFETs or regulators in many designs.

What is the purpose of the CLR input on the MAX16150BWT+T?

The CLR (Clear) input on the MAX16150BWT+T provides asynchronous, active-low reset of the latched OUT signal - pulling CLR low forces OUT to deassert regardless of PB_IN state. It is ignored during a 2×tINT (64ms) lockout window after OUT assertion to prevent spurious resets. CLR enables MCU-driven shutdown, factory reset, or safety interlock integration without modifying the primary PB_IN path.