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The MAX16151 is a high voltage, pushbutton on/off controller with a switch debouncer and built-in latch. This device accepts a noisy input from a mechanical switch and produces a clean, latched output, as well as a one-shot interrupt output, in response to a switch closure exceeding the debounce period at active-low PB_IN. A switch closure longer than the shutdown period at active-low PB_IN results in a longer one-shot interrupt output. The MAX16151 family has two sets of devices: one in which a longer switch closure greater than the shutdown period deasserts the latched output, and another in which the latched output stays asserted. See Table 1 for more information.

The MAX16151 operates from a supply range of +5V to +36V and consumes less than 15µA of supply current to ensure minimal battery current in low-power applications. The robust switch input active-low (PB_IN) handles ±60V levels and is ±10kV electrostatic discharge (ESD) protected for use in harsh industrial environments. The 3V regulated latched output can serve as a logic signal to control a pass transistor or voltage regulator. A separate active-low INT output provides a system interrupt whenever a valid pushbutton signal is detected. An asynchronous active-low CLR input allows an external signal to force the latched output to the OFF state. The MAX16151 operates over the -40°C to +125°C temperature range and is available in a 1.23mm x 0.83mm, 6-bump wafer-level package (WLP), and a 6-pin thin SOT23 package.