7 Detailed Description

7.1 Overview

The TPS3423 & TPS3424 are nano power push-button family which offer wide range of timing option for input

(PB, KILL) and output (RESET, INT) pins. This device family is available in two different pinout with 8 and

6 pin DRL package and various output and input configuration as per Device Comparison to support various

applications.

7.2 Functional Block Diagrams

Push-button Timer

Logic 1

RESET/INT

Logic 1

Oscillator

VDD

GND

RESET1/

RESET1

INT1*

PB1

RESET/INT

Logic 2

Push-button Timer

Logic 2

PB2

RESET2/

RESET2

INT2*

VDD

VDD

1000 k

1000 k

* Available only in 8 pin DRL (SOT5X3) package

Figure 7-1. TPS3423 Block Diagram

Capacitance

Detection

Push-button Timer

Logic

RESET/INT

Logic

Oscillator

VDD

SPT*

LPT*

KILL

GND

RESET/

RESET

INT

PB

1000 k

VDD

* Available only in 8 pin DRL (SOT5X3) package

Figure 7-2. TPS3424 Block Diagram

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TPS3423, TPS3424

SNVSCN9 – SEPTEMBER 2024

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Product Folder Links: TPS3423 TPS3424