19-6398; Rev 0; 7/12
MAX16122–MAX16125
Dual Pushbutton Controllers in
Tiny 6-Bump WLP Package
General Description
Benefits and Features
S Low Supply Current: < 5µA (typ) at 3V Over
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.
Temperature
S Precision Factory-Set V
Monitoring Threshold
CC
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
The MAX16122–MAX16125 have pin-programmable or
resistor-adjustable setup delay. Connect the SEL pin to
S Guaranteed RESET Valid for V
Down to 0.95V
CC
S Active-Low RESET Output (Push-Pull or Open-
GND, V , or leave it unconnected to select the different
CC
Drain)
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).
S Immune to Short Power-Supply Transients
S 0.86mm x 1.27mm 6-Bump WLP Package
S -40NC to +125NC Operating Temperature Range
The MAX16124/MAX16125 have one manual reset input
(MR), a reset output (RESET), and a soft reset output
(SRESET) which mirrors the state of the input. The
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
Applications
Smartphones
Tablet PCs
the falling edge with a fixed deglitch period of 20ms (t ).
DB
eBook Readers
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.
Portable/Battery-Powered Equipment
Glucose Monitors/Patient Monitors
Portable Instrumentation
Automotive Infotainment
Ordering Information appears at end of data sheet.
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).
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX16122.related.
Typical Operating Circuits
1.6V TO 5.5V
0.1µF
V
V
CC
CC
MAX16124
MAX16125
RESET
RESET
INPUT
MR
µP
SRESET
I/0
GND
GND
Typical Operating Circuits (continued) at end of data sheet.
1
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.