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BU21009MUV-E2 The BU21009MUV-E2 is a capacitive sensor switch control IC from ROHM Semiconductor. It features 16 sensor channels, I2C interface, 10-bit ADC, and supports button and slider functions.
Mfr Part #:

BU21009MUV-E2

Available from 2 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The BU21009MUV-E2 is a capacitive sensor switch control IC from ROHM Semiconductor. It features 16 sensor channels, I2C interface, 10-bit ADC, and supports button and slider functions.
✓ Total Stock: 2,393 pcs

BU21009MUV-E2 Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
2,088 pcs
On Request
2088 pcs On Request 1 On Request On Request 10+ On Request On Request
Rayichip ✓
Non-Authorised Inventory information
305 pcs
On Request
305 pcs On Request 1 On Request On Request On Request On Request On Request
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BU21009MUV-E2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Current
Height
Interface
LED Driver Channels
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Number of Inputs
Operating Temperature
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BU21009MUV-E2 Description

Short technical summary and product information.

The BU21009MUV-E2 is a capacitive sensor switch control IC designed for switch and slider functions. It integrates 16 sensor channels with automatic calibration for slider applications. The device includes an LED driver with up to 8 channels (no PWM), a 10-bit ADC, and a 2-wire serial (I2C) interface.

 

Operating from AVDD supply of 2.5V to 3.3V and DVDD I/O supply of 1.7V to 3.3V, the IC consumes typically 300µA in operation and 2µA in standby. The ADC conversion time is 77µs typical at 1 MHz clock. Power dissipation is 304mW maximum at 25°C.

 

The device is housed in a 32-pin VQFN package (VQFN032V5050) measuring 5mm x 5mm x 1mm, with exposed pad for thermal management. It is surface mount and supplied in tape and reel packaging. Operating temperature range is -40°C to 85°C.

 

Typical applications include mobile phones, portable equipment, and audio-visual apparatuses requiring capacitive touch sensing with slider or multiple button inputs.

BU21009MUV-E2 Quick Information

Product Type: Capacitive Touch Sensor IC
Series: BU21009MUV
Canonical Name: BU21009MUV-E2 Capacitive Sensor Switch Control IC
Subcategory: Capacitive Touch Sensor IC

BU21009MUV-E2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BU21009MUV-E2 Features

  • 16 capacitive touch sensor channels.
  • I2C serial interface for control.
  • Integrated 10-bit ADC converter.
  • LED driver supports up to 8 channels.
  • Operates from 2.5V to 3.3V supply.

BU21009MUV-E2 Applications

  • Used in mobile phone touch interfaces.
  • Suitable for portable equipment controls.
  • Ideal for audio-visual apparatus touch panels.
  • Supports slider and button input designs.

BU21009MUV-E2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BU21009MUV-E2?

AVDD supply voltage range is 2.5V to 3.3V, and DVDD I/O supply range is 1.7V to 3.3V.

What package does the BU21009MUV-E2 come in?

It is available in a 32-pin VQFN package (VQFN032V5050) with exposed pad, measuring 5mm x 5mm x 1mm.

What is the operating temperature range?

-40°C to 85°C.

Is the BU21009MUV-E2 RoHS compliant?

RoHS status is reported as compliant (RoHS3), but this is unverified. Verify with manufacturer.

How many sensor channels does the BU21009MUV-E2 support?

16 channels.

What interface does the BU21009MUV-E2 use?

I2C (2-wire serial interface).

Does the BU21009MUV-E2 have an LED driver?

Yes, it has an LED driver with up to 8 channels (no PWM function).

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