Datasheet > LTC2909IDDB-5#TRPBF

LTC2909IDDB-5#TRPBF

更新时间： 2025-07-18 18:59:03

品牌	Logo	应用领域
亚德诺 - ADI		监控
页数	文件大小	规格书
16页	191K
描述
监控器开路漏极或开路集电极3通道8-DFN（3x2）

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LTC2909

Precision Triple/Dual Input

UV, OV and Negative

Voltage Monitor

DESCRIPTIO

FEATURES

TheLTC^®2909isadualinputmonitorintendedforavariety

of system monitoring applications. Polarity selection and

a buffered reference output allow the LTC2909 to monitor

positive and negative supplies for undervoltage (UV) and

overvoltage (OV) conditions.

■

Two Low Voltage Adjustable Inputs (0.5V)

■

Pin Selectable Input Polarity Allows Negative

and OV Monitoring

Guaranteed Threshold Accuracy: 1.5ꢀ

■

6.5V Shunt Regulator for High Voltage Operation

■

Low 50μA Quiescent Current

The two inputs have a nominal 0.5V threshold, featuring

tight 1.5% threshold accuracy over the entire operating

temperature range. Glitch ﬁltering ensures reliable reset

operation without false triggering. A third ﬁxed-threshold

UVLO monitor on the part’s V (also 1.5% accuracy) is

available for standard logic supplies.

■

Buffered 1V Reference for Negative Supply Offset

■

Input Glitch Rejection

Adjustable Reset Timeout Period

■

Selectable Internal Timeout Saves Components

■

Open-Drain RST Output

■

Accurate UVLO for 2.5V, 3.3V, 5V Systems

■

The common reset output has a timeout that may use

a preset 200ms, be set by an external capacitor or be

disabled. A three-state input pin sets the input polarity

of each adjustable input without requiring any external

components.

Ultralow Voltage Reset: V = 0.5V Guaranteed

Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN

Packages

APPLICATIO S

The LTC2909 provides a highly versatile, precise, space-

conscious, micropower solution for supply monitoring.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

■

Desktop and Notebook Computers

■

Handheld Devices

■

Network Servers

■

Core, I/O Monitor

■

Automotive

TYPICAL APPLICATIO

3.3V UV/OV (Window) Monitor Application with

200ms Internal Timeout (3.3V Logic Out)

SEL Pin Connection for Input Polarity

Combinations

BYP

100nF

3.3V

POLARITY

ADJ1

ADJ2

SEL PIN

10k

453k

FAULT

OUTPUT

ADJ1

RST

LTC2909-2.5

10.7k

REF

ADJ2

SEL

OPEN

GND

–

TMR

–

76.8k

GND

2909 TA01a

2909fb

12 3 4 5 6 7...16

中文翻译

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与LTC2909IDDB-5#TRPBF相关器件

型号	品牌	获取价格	描述	数据表
LTC2909ITS8-2.5	Linear	获取价格	Precision Triple/Dual Input UV, OV and Negative Voltage Monitor
LTC2909ITS8-2.5#TR	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-2.5#TRM	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-3.3	Linear	获取价格	Precision Triple/Dual Input UV, OV and Negative Voltage Monitor
LTC2909ITS8-3.3#PBF	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-3.3#TR	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-5	Linear	获取价格	Precision Triple/Dual Input UV, OV and Negative Voltage Monitor
LTC2909ITS8-5#TR	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-5#TRM	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P
LTC2909ITS8-5#TRMPBF	Linear	获取价格	LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; P

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