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BD2606MVV

© 2012 ROHM Co., Ltd. All rights reserved.

www.rohm.com

TSZ22111・15・001

10.Dec.2015 Rev.002

TSZ02201-0G3G0C200400-1-2

SDA

EN

SCL

I

SDA

SCL

S

Sr

P

S

Application Information

1. Description of Operations

(1) LED Driver

BD2606MVV can control the LED ON/OFF, brightness and charge pump switching frequency by writing to the

interface is effective when EN is at ‘H’ level. When EN

are all stopped.

EN pin voltage) as supply voltage.

equal to the EN pin voltage.

 Slave Address

A7

A6

A5

A4

A3

A2

A1

R/W

1

1

0

0

1

1

0

1/0

 Data Format

The data format is shown below.

Write format:

S

As Sr

As

P

One-byte register data

7 bit

8 bit

7 bit

8 bit

Slave address

One-byte register

address

Slave address

Or

S

As

As

P

One-byte register

address

One-byte register data

7 bit

Slave address

8 bit

8 bit

Read format:

S

As

Sr

Am

P

One-byte register

address

Slave address

One-byte register data

Slave address

8 bit

7 bit

7 bit

8 bit

(Note)

S: Start condition

W: ‘0=Write

R: ‘1=Read

As: Acknowledge (slave -> master)

Am: No acknowledge

P: Stop condition