TPS3423中文资料具有长按短按差异的毫微功耗双通道按钮控制器数据手册TI规格书

描述 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.

特性 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