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IWR6243ABGABLR PDF预览

IWR6243ABGABLR

更新时间： 2024-01-18 18:34:43
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
18页 918K
描述
57GHz 至 64GHz 工业级高性能 MMIC | ABL | 161 | -40 to 105

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IWR6243ABGABLR 数据手册

 浏览型号IWR6243ABGABLR的Datasheet PDF文件第5页浏览型号IWR6243ABGABLR的Datasheet PDF文件第6页浏览型号IWR6243ABGABLR的Datasheet PDF文件第7页浏览型号IWR6243ABGABLR的Datasheet PDF文件第9页浏览型号IWR6243ABGABLR的Datasheet PDF文件第10页浏览型号IWR6243ABGABLR的Datasheet PDF文件第11页 
may be added by connecting a small amount of feedback to  
the positive input. Figure 2 shows a typical topology used to  
introduce hysteresis, described by the equation:  
APPLICATIONS INFORMATION  
The TLV3011 is a low-power, open-drain comparator with  
on-chip 1.242V series reference. The open-drain output  
allows multiple devices to be driven by a single pull-up  
resistor to accomplish an OR function, making the TLV3011  
useful for logic applications.  
V+ × R1  
VHYST  
=
R1 + R2  
The TLV3012 comparator with on-chip 1.242V series refer-  
ence has a push-pull output stage optimal for reduced power  
budget applications and features no shoot-through current.  
V+  
5.0V  
A typical supply current of 2.8µA and tiny packaging combine  
with 1.8V supply requirements to make the TLV3011 and  
TLV3012 optimal for battery and portable designs.  
(1)  
RPULL-UP  
VIN  
TLV301x  
VOUT  
BOARD LAYOUT  
REF  
R2  
560kΩ  
Typical connections for the TLV3011 and TLV3012 are  
shown in Figure 1. The TLV3011 is an open-drain output  
device. A pull-up resistor must be connected between the  
comparator output and supply to enable operation.  
R1  
39kΩ  
VHYST = 0.38V  
NOTE: (1) Use RPULL-UP with the TLV3011 only.  
VREF  
To minimize supply noise, power supplies should be capaci-  
tively decoupled by a 0.01µF ceramic capacitor in parallel  
with a 10µF electrolytic capacitor. Comparators are sensitive  
to input noise, and precautions such as proper grounding  
(use of ground plane), supply bypassing, and guarding of  
high-impedance nodes will minimize the effects of noise and  
help to ensure specified performance.  
FIGURE 2. Adding Hysteresis.  
VHYST will set the value of the transition voltage required to  
switch the comparator output by increasing the threshold  
region, thereby reducing sensitivity to noise.  
V+  
APPLICATIONS  
BATTERY LEVEL DETECT  
0.01µF  
10µF  
(1)  
RPULL-UP  
The low power consumption and 1.8V supply voltage of the  
TLV3011 make it an excellent candidate for battery-powered  
applications. Figure 3 shows the TLV3011 configured as a  
low battery level detector for a 3V battery.  
4
3
10kΩ  
6
VIN–  
1
TLV301x  
VOUT  
V–  
2
VIN+  
5
REF  
NOTE: (1) Use RPULL-UP with the TLV3011 only.  
R1 + R2  
Battery−Okay Trip Voltage = 1.242  
R2  
FIGURE 1. Basic Connections of the TLV3011 and TLV3012.  
OPEN-DRAIN OUTPUT (TLV3011)  
R1  
(1)  
The open-drain output of the TLV3011 is useful in logic  
applications. The value of the pull-up resistor and supply  
voltage used will affect current consumption due to additional  
current drawn when the output is in a low state. This effect  
can be seen in the typical curve Quiescent Current vs Output  
Switching Frequency.  
RPULL-UP  
1MΩ  
+
TLV301x  
Battery  
Okay  
−
R2  
2MΩ  
REF  
1.242V  
EXTERNAL HYSTERESIS  
Comparator inputs have no noise immunity within the range  
of specified offset voltage (±12mV). For noisy input signals,  
the comparator output may display multiple switching as  
input signals move through the switching threshold. The  
typical comparator threshold of the TLV3011 and TLV3012 is  
±0.5mV. To prevent multiple switching within the comparator  
threshold of the TLV3011 or TLV3012, external hysteresis  
When the battery voltage drops below 1.9V,  
the battery-okay output will go low.  
NOTE: (1) Use RPULL-UP with the TLV3011 only.  
FIGURE 3. TLV3011 Configured as a Low Battery Level Detector.  
TLV3011, TLV3012  
8
www.ti.com  
SBOS300B  
1...567891011...18

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