Datasheet > LTC2919

LTC2919

更新时间： 2024-01-05 16:07:50

品牌	Logo	应用领域
凌特 - Linear		监视器
页数	文件大小	规格书
16页	190K
描述
Precision Triple/Dual Input UV, OV and NegativeVoltage Monitor

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中文翻译

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数据手册

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LTC2919 数据手册

LTC2919

Precision Triple/Dual Input

UV, OV and Negative

Voltage Monitor

DESCRIPTIO

FEATURES

The LTC^®2919 is a triple/dual input monitor intended for a

variety of system monitoring applications. Polarity selec-

tion and a buffered reference output allow the LTC2919 to

monitor positive and negative supplies for undervoltage

(UV) and overvoltage (OV) conditions.

■

Two Low Voltage Adjustable Inputs (0.5V)

■

Accurate UVLO Provides a Third Monitor Input

■

Open-Drain RST, OUT1 and OUT2 Outputs

Pin Selectable Input Polarity Allows Negative, UV

■

and OV Monitoring

Guaranteed Threshold Accuracy: 1.5ꢀ

■

The two adjustable inputs have a nominal 0.5V threshold,

featuring tight 1.5% threshold accuracy over the entire

operating temperature range. Glitch ﬁltering ensures out-

puts operate reliably without false triggering. An accurate

threshold at the V pin provides a third input supply

monitor for a 2.5V, 3.3V or 5V supply.

■

6.5V Shunt Regulator for High Voltage Operation

■

Low 50μA Quiescent Current

■

Buffered 1V Reference for Negative Supply Offset

■

Input Glitch Rejection

Adjustable Reset Timeout Period

■

Selectable Internal Timeout Saves Components

■

Two independent output pins indicate the status of each

adjustable input. A third common output provides a

conﬁgurable reset timeout that may be set by an accu-

rate internal 200ms timer, programmed with an external

capacitor, or disabled for a fast response. A three-state

input pin sets the input polarity of each adjustable input

without requiring any external components.

Outputs Guaranteed Low With V = 0.5V

Space Saving 10-Lead 3mm × 2mm DFN and MSOP

Packages

APPLICATIO S

■

Desktop and Notebook Computers

■

Network Servers

The LTC2919 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. Protected by U.S. Patents,

including 6949965, 7292076.

■

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

3.3V

POLARITY

0.1μF

453k

10k

ADJ1

ADJ2

SEL PIN

LTC2919–2.5

10k

ADJ1

OUT1

OUT2

RST

10k

10.7k

76.8k

REF

FAULT

OPEN

GND

ADJ2

SEL

–

TMR

–

GND

2919 TA01a

2919f

12 3 4 5 6 7...16

中文翻译

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LTC2919CDDB-3.3#TRPBF	Linear	获取价格	LTC2919 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: DFN; P
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