LTC2904CTS8#PBF

更新时间： 2024-09-29 13:02:39

品牌	Logo	应用领域
凌特 - Linear		监视器
页数	文件大小	规格书
16页	155K
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中文翻译

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数据手册

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LTC2904CTS8#PBF 数据手册

LTC2904/LTC2905

Precision Dual Supply Monitors

with Pin-Selectable Thresholds

FEATURES

DESCRIPTIO

The LTC^®2904/LTC2905 are dual supply monitors in-

tended for systems with two supply voltages. The dual

supply monitors have a common reset output with delay

(200ms for the LTC2904 and adjustable using an external

capacitor for the LTC2905). This product provides a

precise, space-conscious and micropower solution for

supply monitoring.

■

Monitors Two Inputs Simultaneously

■

Nine Threshold Combinations

■

Three Supply Tolerances (5%, 7.5%, 10%)

■

Guaranteed Threshold Accuracy: ±1.5% of

Monitored Voltage Over Temperature

■

Internal V_CCAuto Select

Power Supply Glitch Immunity

■

200ms Reset Time Delay (LTC2904 Only)

The LTC2904/LTC2905 feature a tight 1.5% threshold

accuracy over the whole operating temperature range,

and glitch immunity to ensure reliable reset operation

without false triggering. The open drain RST output is

guaranteedtobeinthecorrectstateforinputsdownto1V.

■

Adjustable Reset Time Delay (LTC2905 Only)

■

Open Drain RST Output

■

Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V

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

■

^{(3mm x 2mm) D}U^{FN Packages}

The LTC2904/LTC2905 also feature three programming

input pins, which program the threshold and tolerance

level without requiring any external components. These

three programming pins provide a total of 27 different

voltage level and tolerance combinations, eliminating

the need to have different parts for development and

implementationofdifferentsystemswithdifferentvoltage

levels requiring monitoring function.

APPLICATIO S

■

Desktop and Notebook Computers

Handheld Devices

Network Servers

Core, I/O Monitor

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

ThinSOT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

Table 1. Voltage Threshold Programming

5V, 3.3V Dual Supply Monitor with 5% Tolerance

5.0

3.3

2.5

3.3

2.5

1.8

1.5

1.2

1.8

1.5

1.2

1.0

DC/DC

SYSTEM

LOGIC

3.3V

CONVERTER

Open

GND

Open

TMR

GND

RST

LTC2905

0.1µF

Open

GND

Open

GND

Open

22nF

TOL

29045 TA01

GND

sn29045 29045fs

12 3 4 5 6 7...16

中文翻译

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LTC2904CTS8#TRM	Linear	获取价格	LTC2904 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: SOT; Pins
LTC2904CTS8#TRMPBF	Linear	获取价格	LTC2904 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: SOT; Pins
LTC2904CTS8#TRPBF	Linear	获取价格	暂无描述
LTC2904CTS8TRMPBF	Linear	获取价格	Precision Dual Supply Monitors with Pin-Selectable Thresholds
LTC2904CTS8TRPBF	Linear	获取价格	Precision Dual Supply Monitors with Pin-Selectable Thresholds
LTC2904IDDB	Linear	获取价格	Precision Dual Supply Monitors with Pin-Selectable Thresholds
LTC2904IDDB#PBF	Linear	获取价格	LTC2904 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: DFN; Pins
LTC2904IDDB#TRMPBF	Linear	获取价格	LTC2904 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: DFN; Pins
LTC2904IDDB#TRPBF	Linear	获取价格	暂无描述
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