TPS3422EGDRYR

更新时间： 2024-10-15 12:02:43

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
19页	855K
描述
Low-Power, Push-Button Controllers with Configurable Delay

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TPS3422EGDRYR 数据手册

TPS3420

TPS3421

TPS3422

www.ti.com

SBVS211A –AUGUST 2012–REVISED MARCH 2013

Low-Power, Push-Button Controllers with Configurable Delay

Check for Samples: TPS3420, TPS3421, TPS3422

FEATURES

DESCRIPTION

The TPS3420, TPS3421, and TPS3422 (TPS342x)

•

Very Small Package: 1.45-mm × 1-mm SON

Operating Range: 1.6 V to 6.5 V

are low-current, ultrasmall, push-button reset timers.

These devices use a long timing setup delay to

provide the intended system reset, and avoid resets

from short push-button closures or key presses. This

reset configuration also allows for differentiation

between software interrupts and hard system resets.

•

Single (TPS3422) or Dual (TPS3420 and

TPS3421) Push-Button Inputs

•

Low Supply Current: 250 nA

Two-State Logic, User-Selectable Input Delay:

The TPS3420 and TPS3421 monitor two inputs (PB1

and PB2) and output an active-low reset pulse signal

(RST) when both inputs are low for the selected time

delay. For the TPS3421, RST remains low for a

factory-programmed fixed time. For the TPS3420,

RST remains low until one of the PBx inputs is

released. The need for a dedicated reset button is

eliminated because two inputs are used to ensure

reset. The TPS3422 monitors one input (PB1) and

outputs an active-low reset pulse signal (RST) when

PB1 is low for the selected time delay.

–

For Example: 7.5 s and 0 s

Multiple Timing Options Available

•

Fixed Timeout Pulse at RST (TPS3421 and

TPS3422): 400 ms

–

Other Timing Options Available on Request

Active Low, Open-Drain Output

APPLICATIONS

•

Smart Phones

The TPS342x have an open-drain output that can be

wire ORed with other open-drain devices. The

TPS342x operate from 1.6 V to 6.5 V over the –40°C

to +125°C temperature range, and provide a precise,

space-conscious micropower solution for system

resetting needs.

Tablets, Ultrabooks™

Gaming Consoles

Portable Consumer

Navigation Devices

Consumer Medical

Toys

V_IN= 1.6 V to 6.5 V

V_DD

VCC

TPS3420, TPS3421

DRY PACKAGE

TPS3422

DRY PACKAGE

1,45-mm x 1-mm SON

(TOP VIEW)

1,45-mm x 1-mm SON

(TOP VIEW)

PB1

RST

Reset

Push-

Button

Switch

Microprocessor,

PMU

RST

GND

PB1

RST

GND

PB1

PB2

TST

TPS3421

PB2

VCC

Push-

Button

Switch

GND

NOTE: Connect TS to VCC or ground for different PB time delays. Connect one PB input to ground for use as a single channel.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Ultrabooks is a trademark of Intel Corporation.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...19

中文翻译

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TPS3422EGDRYR 替代型号

型号	品牌	替代类型	描述	数据表
TPS3422EGDRYT	TI	完全替代	Low-Power, Push-Button Controllers with Configurable Delay

与TPS3422EGDRYR相关器件

型号	品牌	获取价格	描述	数据表
TPS3422EGDRYT	TI	获取价格	Low-Power, Push-Button Controllers with Configurable Delay
TPS3430	TI	获取价格	具备可编程复位延迟功能的窗口看门狗计时器
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TPS3430WDRCR	TI	获取价格	具备可编程复位延迟功能的窗口看门狗计时器 \| DRC \| 10 \| -40 to 125
TPS3430WQDRCRQ1	TI	获取价格	具备可编程复位延迟功能的汽车类窗口看门狗计时器 \| DRC \| 10 \| -40 to 1
TPS3431	TI	获取价格	具有使能功能的标准可编程看门狗计时器
TPS3431-Q1	TI	获取价格	具有使能功能的汽车类标准可编程看门狗计时器
TPS3431SDRBR	TI	获取价格	具有使能功能的标准可编程看门狗计时器 \| DRB \| 8 \| -40 to 125
TPS3431SQDRBRQ1	TI	获取价格	具有使能功能的汽车类标准可编程看门狗计时器 \| DRB \| 8 \| -40 to 125
TPS3435	TI	获取价格	纳安级静态电流精密看门狗计时器

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