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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX16124 Datasheet

Dual Pushbutton Controllers

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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, VCC, 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 (tDB).
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 VCC 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 VCC 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
I/0
µP
GND
Typical Operating Circuits (continued) appears at end of data sheet.
19-6398; Rev 2; 4/16


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX16124 Datasheet

Dual Pushbutton Controllers

No Preview Available !

MAX16122–MAX16125
Dual Pushbutton Controllers in
Tiny 6-Bump WLP Package
Absolute Maximum Ratings
(All pins referenced to GND)
VCC...........................................................................-0.3V to +6V
RESET, SRESET to GND
Open-Drain...............................................................-0.3V to +6V
Push-Pull................................................... -0.3V to (VCC + 0.3V)
MR, MR1, MR2.........................................................-0.3V to +6V
SEL...........................................................................-0.3V to +6V
Input/Output Current (all pins).............................................20mA
Continuous Power Dissipation (TA = +70°C) (Multilayer Board)
WLP (derate 10.5mW/°C above +70°C).......................840mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Soldering Temperature (reflow)........................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Thermal Characteristics (Note 1)
WLP
Junction-to-Ambient Thermal Resistance (θJA)...........95°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VCC = 1.6V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Operating Voltage Range
VCC Undervoltage Lockout
VCC Supply Current
VCC
RESET state guaranteed for VCC ≥ 0.95V
1.6
5.5
VCCUVLO
1.25 1.55
VCC = 5V, steady-state condition; MR,
ICC MR1, MR2, RESET, and SRESET not
asserted
8 10
Supply Current with Oscillator
Running
VCC Reset Threshold
VCC Reset Threshold Hysteresis
Reset Threshold Tempco
ICC2
VTH
VHYST
VCC = 3V
VCC falling
5 10
-2.5% VTH +2.5%
2
30
VCC to RESET Output Delay
Reset Timeout Period
Manual Reset Setup Delay
Debounce Period
tD
VCC falling at 10mV/µs from
(VTH + 100mV) to (VTH - 100mV)
tRP See Table 2
tSU Internal timing (see Tables 1a, 1b, 1c)
tDB
10
-10 tRP +10
-10 tSU +10
18 20 22
UNITS
V
V
µA
µA
V
%
ppm/°C
µs
%
%
ms
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX16124
Description Dual Pushbutton Controllers
Maker Maxim Integrated
Total Page 16 Pages
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