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TPS3809L30DBVRG4

更新时间： 2024-11-08 11:08:07

品牌	Logo	应用领域
德州仪器 - TI		监控电源管理电路电源电路
页数	文件大小	规格书
13页	821K
描述
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 \| -40 to 85

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替代型号

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TPS3809L30DBVRG4 数据手册

TPS3809J25, TPS3809L30

TPS3809K33, TPS3809I50

www.ti.com

SLVS228B –AUGUST 1999–REVISED JULY 2012

3-PIN SUPPLY VOLTAGE SUPERVISORS

Check for Samples: TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

FEATURES

APPLICATIONS

•

3-Pin SOT-23 Package

•

Applications Using DSPs, Microcontrollers, or

Microprocessors

Supply Current of 9 μA (Typical)

•

Wireless Communication Systems

Portable/Battery-Powered Equipment

Programmable Controls

Intelligent Instruments

Precision Supply Voltage Monitor

2.5 V, 3 V, 3.3 V, 5 V

•

Pin-For-Pin Compatible With MAX 809

Temperature Range: –40°C to +85°C

Industrial Equipment

Notebook/Desktop Computers

Automotive Systems

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_DDbecomes higher than 1.1 V. Thereafter, the

supervisory circuit monitors V_DDand keeps RESET active as long as V_DDremains below the threshold voltage

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

The delay time, t_d(typ)= 200 ms, starts after V_DDhas risen above the threshold voltage V_IT. When the supply

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

are required. All the devices of this family have a fixed sense-threshold voltage V_ITset 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.

spacer

Figure 2. Typical Application

TPS76333

3.3 V

OUT

5 V

Figure 1. DBV PACKAGE

TOP VIEW)

GND

TMS320LC54x

TPS3809K33

RESET

GND

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.

All 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...13

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TPS3809L30DBVRG4 替代型号

型号	品牌	替代类型	描述	数据表
TPS3809I50DBVR	TI	类似代替	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809I50DBVT	TI	类似代替	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809K33DBVR	TI	类似代替	3-PIN SUPPLY VOLTAGE SUPERVISORS

与TPS3809L30DBVRG4相关器件

型号	品牌	获取价格	描述	数据表
TPS3809L30DBVT	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809L30MDBVREP	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
TPS3809L30-Q1	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809L30QDBVRQ1	TI	获取价格	3-PIN SUPPLY VOLTAGE SUPERVISORS
TPS3809-Q1	TI	获取价格	具有低电平有效和推挽复位功能的汽车类 3 引脚电压监控器（复位 IC）
TPS380X-01	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS380XE18	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS380XG27	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS380XI50	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
TPS380XJ25	TI	获取价格	ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

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