TLV809

更新时间： 2024-09-20 11:06:31

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
16页	691K
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）

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数据手册

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TLV809 数据手册

TLV809J25, TLV809L30

TLV809K33, TLV809I50

www.ti.com

SLVSA03C –JUNE 2010–REVISED FEBRUARY 2012

3-Pin Supply Voltage Supervisors

Check for Samples: TLV809J25, TLV809L30, TLV809K33, TLV809I50

FEATURES

APPLICATIONS

•

3-Pin SOT23 Package

•

DSPs, Microcontrollers, and Microprocessors

Supply Current: 9 µA (Typical)

Precision Supply Voltage Monitor:

2.5 V, 3 V, 3.3 V, 5 V

Wireless Communication Systems

Portable/Battery-Powered Equipment

Programmable Controls

•

Power-On Reset Generator with

Fixed Delay Time of 200 ms

Intelligent Instruments

Industrial Equipment

•

Pin-for-Pin Compatible with MAX809

Temperature Range: –40°C to +85°C

Notebook and Desktop Computers

Automotive Systems

DESCRIPTION

The TLV809 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_DD) becomes 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 V_ITthreshold voltage, the output becomes active (low) again. No external components

are required. All the devices in this family have a fixed sense-threshold voltage (V_IT) 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 package. The TLV809 devices are characterized for operation over a temperature range of –40°C

to +85°C.

TLV809

DBV/DBZ Packages

Figure 1. TYPICAL APPLICATION

3.3-V LDO

3.3 V

GND

5 V

OUT

GND

V_DD

DSP/FPGA/ASIC

RESET

V_DD

TLV809K33

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...16

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与TLV809相关器件

型号	品牌	获取价格	描述	数据表
TLV809E	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC）
TLV809EA17DBZR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DBZ \| 3
TLV809EA22DBZR	TI	获取价格	TLV803E, TLV809E, TLV810E Low Power 250-nA IQ and Small Size Supply Voltage Supervisors
TLV809EA26DBZR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DBZ \| 3
TLV809EA26DCKR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DCK \| 3
TLV809EA26DPWR	TI	获取价格	TLV803E, TLV809E, TLV810E Low Power 250-nA IQ and Small Size Supply Voltage Supervisors
TLV809EA29DBZR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DBZ \| 3
TLV809EA29DCKR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DCK \| 3
TLV809EA29DPWR	TI	获取价格	TLV803E, TLV809E, TLV810E Low Power 250-nA IQ and Small Size Supply Voltage Supervisors
TLV809EA30DBZR	TI	获取价格	具有低电平有效、推挽复位功能的低功耗 3 引脚电压监控器（复位 IC） \| DBZ \| 3

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