MAX16122 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Dual Pushbutton Controllers in Tiny 6-Bump WLP Package

MAX16122–MAX16125
Dual Pushbutton Controllers in
Tiny 6-Bump WLP Package
General Description
The MAX16122–MAX16125 pushbutton controllers with
single-supply monitors monitor one or two pushbuttons 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 current of only 5µA at 3V.
The MAX16122–MAX16125 have pin-programmable or
resistor-adjustable setup delay. Connect the SEL pin to
GND, V_CC, or leave it unconnected to select the different
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
(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
the falling edge with a fixed deglitch period of 20ms (t_DB).
The devices feature a comparator that monitors the
input supply voltage. A variety of factory-trimmed threshold
options accommodate different supply voltages and
tolerances, eliminating external components. 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 (-40°C to +125°C).
Typical Operating Circuits
1.6V TO 5.5V
0.1µF
VCC
MAX16124
MAX16125
RESET
MR
SRESET
GND
Benefits and Features
●● Low Supply Current: < 5μA (typ) at 3V Over Temperature
●● Precision Factory-Set V_CC Monitoring Threshold for
1.8V, 2.5V, 3.3V, and 5V Supplies
●● Fixed/Pin-Programmable or Resistor-Adjustable
Pushbutton Setup Delay
●● Up to 2 Reset Outputs and 2 Debounced Pushbutton
Inputs
●● Guaranteed RESET Valid for V_CC Down to 0.95V
●● Active-Low RESET Output (Push-Pull or Open-Drain)
●● Immune to Short Power-Supply Transients
●● 0.86mm x 1.27mm 6-Bump WLP Package
●● -40°C to +125°C Operating Temperature Range
Applications
●● Smartphones
●● Tablet PCs
●● eBook Readers
●● Portable/Battery-Powered Equipment
●● Glucose Monitors/Patient Monitors
●● Portable Instrumentation
Ordering Information appears at end of data sheet.
VCC
RESET
INPUT
µP
I/0
GND
Typical Operating Circuits (continued) appears at end of data sheet.
19-6398; Rev 2; 4/16