Datasheet > LTC2902

LTC2902

更新时间： 2024-01-03 21:42:59

品牌	Logo	应用领域
凌特 - Linear		监视器
页数	文件大小	规格书
16页	188K
描述
Precision Quad Supply Monitor in 6-Lead SOT-23

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LTC2902 数据手册

LTC2903-1

Precision Quad Supply

Monitor in 6-Lead SOT-23

FEATURES

DESCRIPTIO

The LTC^®2903-1 monitors up to four supply voltages. The

common reset output remains low until all four inputs

have been in compliance for 200ms. Voltage thresholds

maintain ±1.5% accuracy over temperature (with respect

to the monitored voltage). The LTC2903-1 features an

open-drain RST output with a weak internal pullup.

■

Ultralow Voltage Reset: V_CC= 0.5V Guaranteed

Monitor Four Inputs Simultaneously

■

3.3V, 2.5V, 1.8V, ADJ (LTC2903-A1)

5V, 3.3V, 2.5V, 1.8V (LTC2903-B1)

5V, 3.3V, 1.8V, –5.2V (LTC2903-C1)

■

Guaranteed Threshold Accuracy: ±1.5% of

Monitored Voltage over Temperature

Internalsupplyvoltage(V_CC)isgeneratedfromthegreater

voltageontheV1,V2inputs.TheRSToutputisguaranteed

to sink at least 5µA (V_OL= 0.15V) for V1, V2 or V3 down

to 0.5V and will typically conduct current down to 0V.

Quiescent current is 20µA typical, making the LTC2903-1

ideal for power conscious systems. The LTC2903-1 is

available in a 6-lead low profile (1mm) SOT-23 package.

■

10% Undervoltage Monitoring

■

Low Supply Current: 20µA Typical

■

200ms Reset Time Delay

■

Active Low Open-Drain RST Output

■

Power Supply Glitch Immunity

Low Profile (1mm) SOT-23 (ThinSOT^TM) Package

■

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

ThinSOT is a trademark of Linear Technology Corporation.

APPLICATIO S

■

Multivoltage Systems

Optical Networking Systems

Cell Phone Base Stations

Network Servers

■

TYPICAL APPLICATIO

Low Voltage Reset Pull-Down Performance

vs External Pull-Up Current and Input Supply Voltage

0.10

= V1 = V2 = V3

0.09

0.08

0.07

0.06

0.05

0.04

0.03

0.02

0.01

3.3V

DC/DC

CONVERTER

SYSTEM

LOGIC

2.5V

1.8V

20µA

10µA

LTC2903-B1

RST

5µA

2µA

0.1µF

GND

0.1µF

2903 TA01

1µA

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

, INPUT SUPPLY VOLTAGE (V)

2903 TA01b

29031f

12 3 4 5 6 7...16

中文翻译

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与LTC2902相关器件

型号	品牌	获取价格	描述	数据表
LTC2902-1CGN	Linear	获取价格	Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance
LTC2902-1CGN	Linear Systems	获取价格	Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance
LTC2902-1CGN#PBF	Linear	获取价格	LTC2902 - Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Toleranc
LTC2902-1CGN#TRPBF	Linear	获取价格	LTC2902 - Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Toleranc
LTC2902-1IGN	Linear	获取价格	Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance
LTC2902-1IGN	Linear Systems	获取价格	Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance
LTC2902-1IGN#PBF	Linear	获取价格	LTC2902 - Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Toleranc
LTC2902-1IGN#TR	Linear	获取价格	LTC2902 - Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Toleranc
LTC2902-1IGN#TRPBF	Linear	获取价格	LTC2902 - Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Toleranc
LTC2902-2CGN	Linear Systems	获取价格	Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance

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