MAX16122–MAX16125

Dual Pushbutton Controllers in

Tiny 6-Bump WLP Package

1

19-6398; Rev 0; 7/12

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

refer to www.maxim-ic.com/MAX16122.related.

Typical Operating Circuits

Typical Operating Circuits (continued) at end of data sheet.

General Description

The MAX16122–MAX16125 pushbutton controllers with

single-supply monitors monitor one or two pushbut-

tons and generate a hard reset signal if the buttons are

pushed and held for a setup delay. These devices make

it easy to “hide” the hard reset function in an existing

pushbutton, such as a soft power switch. The devices

operate from 1.6V to 5.5V and consume a quiescent cur-

rent of only 5FA at 3V.

The MAX16122–MAX16125 have pin-programmable or

resistor-adjustable setup delay. Connect the SEL pin to

setup delays (depending on part suffix, see Table 1a) or

connect an external resistor from SEL to GND to set the

setup delays (E suffix only, see Table 1b).

The MAX16124/MAX16125 have one manual reset input

(MR), a reset output (RESET), and a soft reset output

MAX16122/MAX16123 have two identical manual reset

inputs (MR1 and MR2) and one reset output (RESET). A

deglitch block is connected to each input to add a delay to

The MAX16122–MAX16125 feature a comparator that

monitors the input supply voltage. A variety of factory-

trimmed threshold options accommodate different sup-

ply voltages and tolerances, eliminating external compo-

nents. The factory-set reset thresholds range from 1.58V

to 4.63V to monitor 5V, 3.3V, 2.5V, and 1.8V supplies.

The MAX16122–MAX16125 are offered in a tiny 0.86mm

x 1.27mm, 6-bump WLP package and are specified over

the automotive temperature range (-40NC to +125NC).

Benefits and Features

S

Low Supply Current: < 5µA (typ) at 3V Over

Temperature

S

for 1.8V, 2.5V, 3.3V, and 5V Supplies

S

Fixed/Pin-Programmable or Resistor-Adjustable

Pushbutton Setup Delay

S

Up to 2 Reset Outputs and 2 Debounced

Pushbutton Inputs

S

S

Active-Low RESET Output (Push-Pull or Open-

Drain)

S

Immune to Short Power-Supply Transients

S

0.86mm x 1.27mm 6-Bump WLP Package

S

-40NC to +125NC Operating Temperature Range

Applications

Smartphones

Tablet PCs

eBook Readers

Portable/Battery-Powered Equipment

Glucose Monitors/Patient Monitors

Portable Instrumentation

Automotive Infotainment

SRESET

RESET

RESET

INPUT

I/0

MR

GND

GND

MAX16124

MAX16125

µP

0.1µF

1.6V TO 5.5V

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.