TPS3801J25

更新时间： 2024-11-19 22:06:15

品牌	Logo	应用领域
德州仪器 - TI		监控
页数	文件大小	规格书
9页	129K
描述
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

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TPS3801J25 数据手册

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

TPS3801 . . . DCK PACKAGE

(TOP VIEW)

5-Pin SC-70 (SOT-323) Package

Supply Current of 9 µA (Typ)

GND

Power-On Reset Generator With Fixed

Delay Time of 200 ms

Precision Supply Voltage Monitor 2.5 V, 3 V,

3.3 V, 5 V

RESET

Manual Reset Input

Temperature Range . . . –40°C to 85°C

description

The TPS3801 family of supervisory circuits provide circuit initialization and timing supervision, primarily for

DSPs and processor-based systems.

During power-on, RESET is asserted when the supply voltage V becomes higher than 1.1 V. Thereafter, the

supervisory circuit monitors V and keeps RESET active as long as V remains below the threshold voltage

V . An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.

The delay time, t

= 200 ms, starts after V has risen above the threshold voltage V . When the supply

d(typ)

DD IT

voltage drops below the threshold voltage V , the output becomes active (low) again. No external components

are required. All the devices of this family have a fixed sense-threshold voltage V set by an internal voltage

divider.

The TPS3801 devices incorporate a manual reset input, MR. A low level at MR causes RESET to become

active.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available

in a 5-pin SC-70 (SOT-323) package which is only about half the size of a 5-pin SOT-23 package.

The TPS3801 devices are characterized for operation over a temperature range of –40°C to 85°C.

typical applications

Applications Using DSPs, Microcontrollers,

or Microprocessors

= 3.3 V

100 nF

Wireless Communication Systems

Portable/Battery-Powered Equipment

TMS320LC54x

TPS3801K33

MR RESET

Programmable Controls

Intelligent Instruments

RESET

GND

Industrial Equipment

Notebook/Desktop Computers

Automotive Systems

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...9

中文翻译

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与TPS3801J25相关器件

型号	品牌	获取价格	描述	数据表
TPS3801J25DCK	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801J25DCKR	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801J25DCKRG4	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801K33	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801K33DCK	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801K33DCKR	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801K33DCKRG4	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801L30	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801L30DCK	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS3801L30DCKR	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

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