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Rohm Semiconductor Electronic Components Datasheet

BU21051FS Datasheet

Capacitive Sensor Switch Control IC

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Capacitive Sensor Control IC Series
Capacitive Sensor Switch
Control IC
BU21051FS
Description
BU21051FS are the capacitive sensor controller with 2ch respectively.
The IC has the port interface and easy to replace the point of switch to this controller.
Features
1) Port output interface
www.Data2Sh) eeFte4wU.csoofmtware control
3) 2ch GPIO outputs
4) 5V power supply voltage available
5) Integrated 10bit AD converter, clock and reset
6) Package SSOP-A16
Applications
It is possible to use it widely as a switch such as home electric appliance.
Absolute Maximum Ratings (Ta=25)
PARAMETER
SYMBOL
RATING
MIN
MAX
Applied voltage
AVDD
DVDD
-0.3
-0.3
7.0
7.0
Input voltage
VAIN
VDIN
-0.3
-0.3
AVDD + 0.3
DVDD + 0.3
Storage temperature range
Tstg
-55
125
Power dissipation
Pd
500
Ambient temperature reduces a permission loss by 5mW per case more than 25 degrees Celsius, 1 degree Celsius
Recommended Operating conditions
PARAMETER
SYMBOL
Applied voltage
Operating temperature range
AVDD
DVDD
Topr
MIN
4.5
4.5
-40
RATING
TYP
5.0
5.0
25
MAX
5.5
5.5
85
No.09048EBT05
UNIT
V
V
mW
UNIT
V
V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/6
2009.04 - Rev.B


Rohm Semiconductor Electronic Components Datasheet

BU21051FS Datasheet

Capacitive Sensor Switch Control IC

No Preview Available !

BU21051FS
Technical Note
Electrical characteristics(Especially, Topr=25and AVDD=DVDD=0 as long as it doesn't specify it.)
PARAMETER
SYMBOL
MIN
RATING
TYP
MAX
UNIT
Condition
DC characteristics
Input“H”voltage
VIHIO DVDD x 0.9
-
DVDD + 0.2
V
Input“L”voltage
VILIO
GND – 0.2
-
DVDD x 0.1
V
Output“H”voltage
VOL GND
-
DVDD x 0.2
V IOH = -2[mA]. Overshoot is excluded.
Output“L”voltage
IIZ -1 -
1 μA
Input leakage current
IOZ
-1
-
1 μA
Output leakage current
IST
-
-
2 μA Shutdown (SDN=“L”)
Standby current
IDD - 500
- uA
A/D Converter
PARAMETER
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Resolution
SYMBOL
MIN
-
Analog Input voltage
VAIN
GND
Change clock frequency
fadck
0.2
Change time
ftim -
Zero scale voltage
-
Full scale voltage
AVDD - 0.07
Differential non line accurate DNL
-
Integrate non line accurate
INL
-
RATING
TYP
10
-
-
13
-
-
-
-
MAX
-
AVDD
1.0
-
GND + 0.07
-
±3
±3
UNIT
Condition
bit
V
MHz
μsec fadck = 1[MHz]
V
V
LSB
LSB
CR Oscillator characteristic
PARAMETER
Oscillation Frequency
SYMBOL
fcr
MIN
0.9
RATING
TYP
1.6
MAX
2.5
UNIT
MHz
Condition
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/6
2009.04 - Rev.B


Part Number BU21051FS
Description Capacitive Sensor Switch Control IC
Maker Rohm
Total Page 7 Pages
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