TPS3423, TPS3424, Nano-Power, Push-Button Controllers With Configurable Delay to

enable Battery Freshness Seal

1 Features

• Operating voltage range: 1V to 6V

• Nano supply current: 22nA (typical)

• HBM ESD rating on push-button pin: 10kV

• Programmable short press and long press duration

– TPS3423, TPS3424 fixed timing options:

• Short press duration: 50msec to 13 sec

• Long press duration: 1sec to 30 sec

• Timer accuracy (max): 10 %

– TPS3424: user-programmable option (50 msec

to 50 sec) through external capacitor

• Output configurations:

– RESET configurations:

• Push-pull / open-drain, active high / low

• Latched / non-latched

• 100msec to 1sec pulse option for non-

latched version

– INT configurations:

• open drain, active low

• non-latched (100msec to 1sec pulse

duration)

• Kill feature: used as feedback from the host to de-

assert RESET

• Available in pin compatible 8 pin and 6 pin DRL

package

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 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, sending an

interrupt to micro controller and generating logic. 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.

By controlling the power tree running off the battery,

TPS3423/4 extends battery life and prolongs device

shelf life. This feature is also known as 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.

Device Information

PART NUMBER

PACKAGE (1)

PACKAGE SIZE (3)

TPS3423

DRL (SOT-5X3)

2.10mm × 1.60mm

DRL (SOT-5X3) (2)

1.60mm × 1.20mm

TPS3424

DRL (SOT-5X3)

2.10mm × 1.60mm

DRL (SOT-5X3) (2)

1.60mm × 1.20mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

Preview package

(3)

The package size (length × width) is a nominal value and

includes pins, where applicable

VDD

PB

Kill

INT

SPT

RST

LPT

GND

GND

R1

VBAT

GND

TPS3424

DC/DC

EN

VOUT

VDD

µC

Push-bu on

C1

C2

TPS3424 Typical Application Diagram

TPS3423, TPS3424

SNVSCN9 – SEPTEMBER 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.