Datasheet > LTC2902

LTC2902

更新时间： 2023-12-20 18:44:21

品牌	Logo	应用领域
亚德诺 - ADI		监视器
页数	文件大小	规格书
16页	179K
描述
具可调复位定时器和电源容差的可设置四路电源监视器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTC2902 数据手册

LTC2902

Programmable Quad Supply

Monitor with Adjustable Reset Timer

and Supply Tolerance

FEATURES

DESCRIPTIO

■

Simultaneously Monitors Four Supplies

The LTC^®2902 is a programmable supply monitor for sys-

tems with up to four supply voltages. One of 16 preset or

adjustable voltage monitor combinations can be selected

using an external resistor divider connected to the pro-

■

16 User Selectable Combinations of 5V, 3.3V, 3V,

2.5V, 1.8V, 1.5V and/or ±Adjustable Voltage

Thresholds

■

Guaranteed Threshold Accuracy: ±1.5% of Monitored gram pin. The preset voltage thresholds are digitally pro-

Voltage Over Temperature

grammable to 5%, 7.5%, 10% or 12.5% below the nomi-

nal operating voltage, and are accurate to 1.5% over tem-

perature. All four voltage comparator outputs are con-

nected to separate pins for individual supply monitoring.

Selectable Supply Tolerance: 5%, 7.5%,

10%, 12.5% Below Monitored Voltage

Low Supply Current: 43µA Typ

Adjustable Reset Time

■

The reset delay time is adjustable using an external

capacitor. Tight voltage threshold accuracy and glitch

immunity ensure reliable reset operation without false

triggering. The RST output is guaranteed to be in the

correct state for V_CCdown to 1V and may be disabled

during supply margin testing. The LTC2902-1 features

an open-drain RST output, while the LTC2902-2 has a

push-pull RST output.

RESET Disable Pin for Margining Applications

Open-Drain RST Output (LTC2902-1)

Push-Pull RST Output (LTC2902-2)

Individual Nondelayed Monitor Outputs for Each Supply

Power Supply Glitch Immunity

Guaranteed RESET for V_CC≥ 1V

APPLICATIO S

■

The43µAsupplycurrentmakestheLTC2902idealforpower

conscious systems and the part may be configured to

monitor less than four inputs. The LTC2902-1/LTC2902-2

are available in the 16-lead narrow SSOP package.

Desktop and Notebook Computers

■

Multivoltage Systems

Telecom Equipment

■

Portable Battery-Powered Equipment

■

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

Network Servers

TYPICAL APPLICATIO

Quad Supply Monitor with Adjustable Tolerance (5V, 3.3V, 2.5V, 1.8V)

3.3V

2.5V

1.8V

DC/DC

CONVERTER

SYSTEM

LOGIC

POWER

GOOD

10k

COMP1

COMP2

COMP3

COMP4

RST

0.1µF

LTC2902-2

REF

RDIS

MARGIN

59k

TOLERANCE = 5%

= 216ms

40.2k

GND

CRT

RST

47nF

2902 TA01

2902f

12 3 4 5 6 7...16

中文翻译

下载PDF

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

与LTC2902相关文章

MBRS340T3G手册解读：参数说明、产品特性及应用
2024-06-28

4
PMOS管背靠背连接：串联还是并联？
2024-06-28

4
高压电解电容的分类与选型策略
2024-06-28

5
数码管：基本概念、分类、技术发展及市场趋势
2024-06-27

11

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC2902

LTC2902 数据手册

与LTC2902相关器件

与LTC2902相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC2902

LTC2902 数据手册

与LTC2902相关器件

与LTC2902相关文章

您还可以找

您在本页遇到什么问题？