1 Features
• Operating voltage range: 1V to 6V
• Nano supply current: 18nA (typical)
• HBM ESD rating on push-button pin: ±8kV
• Programmable short press and long press duration
– TPS3423, TPS3424 fixed timing options:
• Short press duration: 50msec to 13sec
• Long press duration: 1sec to 30sec
• Timer accuracy (maximum): ±10%
– TPS3424: user-programmable option (50msec
to 50sec) through external capacitor
• Output configurations:
– RESET configurations:
• Push-pull / open-drain, active high / low
• Latched / non-latched
• 100msec to 10sec pulse option for nonlatched
version
– INT configurations:
• open drain, active low
• non-latched (100msec to 1sec pulse
duration)
• Kill feature: enables host to control the RESET
output
• Available in pin compatible SOT-583 and SOT563
packages

2 Applications
• Wearables
• Gaming consoles
• Home theater entertainment
• Printers
• Health care
• Portable electronics
• Factory automation & control

3 Description
TPS3423 and TPS3424 are push-button controllers
which offer wide range of independent detection
of short press and long press functionality. These
devices offer up to two outputs per push-button
(RESET and INT), which can be used for various
use cases including enabling the voltage regulator
or circuit breakers, generating a monoshot for given
press duration and sending an interrupt to micro
controller. The device generates an interrupt pulse
both for short press and long press notifying the micro
controller. RESET output changes the state based on
the device configuration.
The extreme low power consumption 18nA helps
to improve product shelf life for battery powered
devices. The device keeps the power tree disabled
until required button press is detected. This feature
can be used to implement battery freshness seal.
TPS3423/4 are offered in fixed timing options for short
and long press durations. To provide flexibility to the
designer, TPS3424 also offers user-programmable
short and long press durations through an external
capacitor. Kill pin in TPS3424 enables feedback
from the microcontroller to asynchronously de-assert
RESET.