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TPS3809J25DBV

更新时间： 2024-11-06 22:06:55

品牌	Logo	应用领域
德州仪器 - TI		监控
页数	文件大小	规格书
8页	115K
描述
3-PIN SUPPLY VOLTAGE SUPERVISORS

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TPS3809J25DBV 数据手册

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

3-PIN SUPPLY VOLTAGE SUPERVISORS

SLVS228 – AUGUST 1999

TPS3809 . . . DBV PACKAGE

(TOP VIEW)

3-Pin SOT-23 Package

Supply Current of 9 µA (Typical)

GND

Precision Supply Voltage Monitor

2.5 V, 3 V, 3.3 V, 5 V

Power-On Reset Generator With Fixed

Delay Time of 200 ms

RESET

Pin-For-Pin Compatible With MAX 809

Temperature Range . . . –40°C to 85°C

description

The TPS3809 family of supervisory circuits provides 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 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 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of –40°C

to 85°C.

typical applications

TPS76333

3.3 V

Applications Using DSPs, Microcontrollers,

or Microprocessors

5 V

OUT

GND

Wireless Communication Systems

Portable/Battery-Powered Equipment

TMS320LC54x

TPS3809K33

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 8

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与TPS3809J25DBV相关器件

型号	品牌	获取价格	描述	数据表
TPS3809J25DBVR	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809J25DBVT	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809J25-Q1	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809J25QDBVRQ1	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33DBV	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33DBVR	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33DBVRG4	TI	获取价格	具有低电平有效推挽复位功能的 3 引脚电压监控器（复位 IC） \| DBV \| 3 \| -
TPS3809K33DBVT	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33MDBVREP	TI	获取价格	增强型产品 3 引脚电源电压监控器 \| DBV \| 3 \| -55 to 125

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