ROHM BU21010MUV Data Sheet
Summary
Advanced capacitive sensor controller with eight channels, this IC provides comprehensive touch input solutions, including built-in LED driving and sophisticated gesture recognition capabilities (short touch, long touch). Ideal for engineers designing portable electronics, mobile phones, and audio-visual equipment. This resource manual details all technical specifications, electrical characteristics, ADC functionality, and integration guidelines necessary to implement reliable, low-power capacitive switching systems in consumer devices.
Page 1 Text Content
Capacitive Sensor Control IC Series
Capacitive Sensor Switch Control IC
No.09048EBT02
BU21010MUV
●Description BU21010MUV are the capacitive sensor controller with 8 channels respectively. Half of sensor ports are available to use to LED driver. Also gesture function can recognize the short touch, long touch and finger motion.
●Features 1) Gesture function 2) LED driver 3) 2 wire serial interface 4) Power supply = 2.5V to 3.3V, I/O power supply = 1.7V to 3.3V 5) Integrated 10bit AD converter, clock and reset 6) Package VQFN016V3030
●Applications It is possible to use it widely as a switch such as a Mobile phone, Portable equipment, and Audiovisual apparatuses.
●Absolute Maximum Ratings (Ta=25℃)
RATING
PARAMETER SYMBOL UNIT
MIN MAX
AVDD -0.3 4.5
APPLIED VOLTAGE
DVDD -0.3 4.5 VAIN -0.3 AVDD + 0.3
INPUT VOLTAGE
VDIN -0.3 DVDD + 0.3
STORAGE TEMPERATURE RANGE Tstg -55 125 ℃ POWER DISSIPATION Pd 215 m W
●Recommended Operating conditions
RATING
PARAMETER SYMBOL UNIT
MIN TYP MAX
AVDD 2.5 3.0 3.3 V
APPLIED VOLTAGE
DVDD 1.7 3.0 3.3 V
OPERATINGTEMPERATURE RANGE Topr -40 25 85 ℃
www.rohm.com 2009.04 - Rev.B
© 2009 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BU21010MUV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 15 |
| File Size | 324.53 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
How does the internal power management handle low usage?
The Controller automatically transitions into a low-power mode when sensors are not in use and wakes up upon touch, setting the INT pin.
What is the required operating voltage range for AVDD and DVDD?
AVDD must operate between 2.5V to 3.3V, and DVDD must be maintained between 1.7V to 3.3V.
Can this controller be used in systems requiring extremely high reliability?
No, it is not designed for equipment where failure could directly threaten human life, such as medical or aerospace machinery.