參數(shù)資料
型號: MPR031EPR2
廠商: Freescale Semiconductor
文件頁數(shù): 10/33頁
文件大?。?/td> 0K
描述: IC CTLR TOUCH SENSOR 8-DFN
產(chǎn)品培訓(xùn)模塊: MPR03x - Low-Power Proximity Sensors
特色產(chǎn)品: MPR03x Proximity Capacitive Touch Sensor Controllers
標(biāo)準(zhǔn)包裝: 1
類型: 電容性
觸摸面板接口: 2 線
評估套件: 可供
數(shù)據(jù)接口: I²C,串行
數(shù)據(jù)速率/采樣率 (SPS,BPS): 400k
電源電壓: 1.71 V ~ 2.75 V
電流 - 電源: 43µA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-UFDFN
供應(yīng)商設(shè)備封裝: 8-QFN-D(2x2)
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 2808 (CN2011-ZH PDF)
配用: KITMPR03XEVM-ND - KIT EVAL FOR MPR03X
DEMOMPR031-ND - BOARD DEMO FOR MPR031 CTLR
其它名稱: MPR031EPR2DKR
MPR03X
Sensors
18
Freescale Semiconductor
Figure 23.
Smaller amounts of change indicate increased sensitivity for the capacitance sensor. Some sample values are shown in Table 11.
In the above cases, the capacitance is assumed to be in the middle of the range for specific settings. Within the capacitance
range the equation is nonlinear, thus the sensitivity is best with the lowest capacitance. This graph shows the sensitivity derivative
reading across the valid range of capacitances for a set I, T, and VDD. For simple small electrodes (that are approximately
21 pF) and a nominal 1.8V supply the following graph is representative of this effect.
Figure 24.
Table 11.
pF
Sensitivity (pF/ADC count)
10
-0.01953
100
-0.19531
Sensitivity vs. Midpoint Capacitance for VDD =1.8V
-5
-4.5
-4
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
0
500
1000
1500
2000
2500
Midpoint Capacitance (pF)
S
ens
iti
vi
ty
(pF/
A
D
C
Count
)
dC/dADC @cmid (pF/1 ADC Count)
0
Sensitivity vs. Capacitance for VDD =1.8Vand I=36 μA and T=.5 μS
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
10
12
14
16
18
20
22
24
26
28
30
Se
ns
itiv
ity
(pF/A
D
C
ount
)
Maximum
Minimum
C/ADC
Capacitance
相關(guān)PDF資料
PDF描述
VE-BT0-MW-F4 CONVERTER MOD DC/DC 5V 100W
D38999/20FF28SN CONN RCPT 28POS WALL MNT W/SCKT
VE-BT0-MW-F2 CONVERTER MOD DC/DC 5V 100W
MS3106A36-1S CONN PLUG 22POS STRAIGHT W/SCKT
MS27473E14B37P CONN PLUG 37POS STRAIGHT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPR031EPR2 制造商:Freescale Semiconductor 功能描述:IC CAPACITIVE TOUCH SENSOR FN-8
MPR031EPR2-CUT TAPE 制造商:Freescale 功能描述:MPR031 Series 2.75 V 8 ? Proximity Capacitive Touch Sensor Controller - UDFN-8
MPR032 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller
MPR032EP 制造商:Freescale Semiconductor 功能描述:CAPACITIVE TOUCH SENSOR 8-PIN UDFN BULK - Bulk
MPR032EPR2 功能描述:電容觸摸傳感器 DFN TOUCH PAD RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: