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LTC6991CS6#TRMPBF PDF预览

LTC6991CS6#TRMPBF

更新时间： 2024-10-03 20:01:51
品牌 Logo 应用领域
凌特 - Linear 机械输出元件振荡器
页数 文件大小 规格书
24页 310K
描述
LTC6991 - TimerBlox: Resettable, Low Frequency Oscillator; Package: SOT; Pins: 6; Temperature Range: 0°C to 70°C

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中文翻译

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LTC6991CS6#TRMPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOT针数：6
Reach Compliance Code：compliantECCN代码：EAR99
风险等级：3.42其他特性：TAPE AND REEL; OUTPUT FREQUENCY 29.1 MICRO HZ TO 977 HZ
最长下降时间：2.4 ns频率调整-机械：NO
JESD-609代码：e3安装特点：SURFACE MOUNT
最高工作温度：70 °C最低工作温度：
振荡器类型：CMOS输出负载：5 pF
物理尺寸：2.9mm x 1.5mm x 1.0mm最长上升时间：2.7 ns
最大供电电压：5.5 V最小供电电压：2.25 V
表面贴装：YES端子面层：Matte Tin (Sn)
Base Number Matches：1

LTC6991CS6#TRMPBF 数据手册

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LTC6991  
TimerBlox: Resettable, Low  
Frequency Oscillator  
FEATURES  
DESCRIPTION  
The LTC®6991 is a silicon oscillator with a program-  
mable period range of 1.024ms to 9.54 hours (29.1µHz  
to 977Hz), specifically intended for long duration timing  
events. The LTC6991 is part of the TimerBlox® family of  
versatile silicon timing devices.  
n
Period Range: 1ms to 9.5 Hours  
n
Configured with 1 to 3 Resistors  
n
<1.5% Maximum Frequency Error  
n
Output Reset Function  
n
2.25V to 5.5V Single Supply Operation  
n
55µA to 80µA Supply Current  
A single resistor, R , programs the LTC6991’s inter  
-
SET  
n
(2ms to 9.5hr Clock Period)  
nal master oscillator frequency. The output clock period  
n
500µs Start-Up Time  
is determined by this master oscillator and an internal  
n
CMOS Output Driver Sources/Sinks 20mA  
frequency divider, N , programmable to eight settings  
DIV  
n
–55°C to 125°C Operating Temperature Range  
21  
from 1 to 2 .  
n
Available in Low Profile (1mm) SOT-23 (ThinSOT™)  
NDIV •RSET  
and 2mm × 3mm DFN Packages  
tOUT  
=
•1.024ms, NDIV = 1,8,64,...,221  
50kΩ  
APPLICATIONS  
In normal operation, the LTC6991 oscillates with a 50%  
duty cycle. A reset function is provided to truncate the  
pulse (reducing the duty cycle). The reset pin can also be  
used to prevent the output from oscillating.  
n
“Heartbeat” Timers  
n
Watchdog Timers  
n
Intervalometers  
Periodic “Wake-Up” Call  
High Vibration, High Acceleration Environments  
Portable and Battery-Powered Equipment  
n
The RST and OUT pins can be configured for active-low  
or active-high operation using a polarity function.  
n
n
POL BIT  
RST PIN  
OUTPUT STATE  
Oscillating  
0 (reset)  
1 (reset)  
Oscillating  
0
0
1
1
0
1
0
1
All registered trademarks and trademarks are the property of their respective owners.  
For easy configuration of the LTC6991, download the  
TimerBlox Designer tool at www.linear.com/timerblox.  
Clock Period Range over Eight Divider Settings  
1ꢎꢟꢠ  
TYPICAL APPLICATION  
Low Frequency Pulse Generator  
1ꢟꢠ  
1ꢎꢔꢕꢖ  
1µs PULSE WIDTH  
OUT  
60 SECONDS  
R
PW  
1ꢔꢕꢖ  
2.26k  
1ꢎꢒꢓc  
RST  
GND  
SET  
OUT  
6991 TA01a  
C
PW  
LTC6991  
5V  
1ꢒꢓc  
1ꢎꢎꢛꢜ  
1ꢎꢛꢜ  
1ꢛꢜ  
470pF  
+
V
0.1µF  
R1  
R
SET  
1M  
715k  
DIV  
R2  
392k  
1ꢘꢗꢙ  
ꢀꢁꢂ ꢃꢁꢄ ꢂꢅꢆꢇꢈꢉꢊꢋ ꢂ ꢌꢂꢍ  
ꢎ
ꢎꢘ6ꢗꢙ  
1ꢘꢝꢞꢙ  
ꢗꢘꢙ  
t
≈ R • C ≈ 1µs  
6991 ꢇꢈꢎ1ꢚ  
PULSE  
PW  
PW  
ꢀꢁꢂ  
6991fc  
1
For more information www.linear.com/LTC6991  
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中文翻译

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LTC6991CS6#TRMPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC6991IS6#TRMPBF Linear

类似代替

 LTC6991 - TimerBlox: Resettable, Low Frequency Oscillator; Package: SOT; Pins: 6; Temperat

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