BD2802GU データシートの表示（PDF） - ROHM Semiconductor

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BD2802GU

System LED Drivers for Mobile phones 6LEDs Illumination

ROHM Semiconductor 

BD2802GU

Technical Note

Adress 0Bh <B1 Wave Pattern >

BIT

Name

Init

D7

-

-

D6

-

-

D5

-

-

D4

-

-

D3

PB1(3)

0

D2

PB1(2)

1

D1

PB1(1)

1

D0

PB1(0)

1

PB1(3)

0

0

0

・

・

・

1

1

1

0

-

-

-

-

PB1(2)

0

0

0

・

・

・

1

1

1

Function

PB1(1)

0

0

1

・

・

・

0

1

1

PB1(0)

0

1

0

・

・

・

1

0

1

1

-

-

-

-

Wave

Pattern1

Pattern2

Pattern3

・

・

・

Pattern14

Pattern15

Pattern16

Adress 0Ch <RGB2 time >

BIT

Name

Init

D7 SFRGB2(1) 0

D6 SFRGB2(0) 0

Function

0

1

SFRGB2(1)

SFRGB2(0)

Slope Down transition

0

0

0

0

1

Wave form cycle / 16

1

0

Wave form cycle / 8

1

1

Wave form cycle / 4

It is a theoretical value on logic control, and the reaction time of the analog section is

not included.

"Slope time" is the time from a slope start to a slope end.

SRRGB2(1)

SRRGB2(0)

Slope up transition

D5 SRRGB2(1) 0

0

0

0

0

1

Wave form cycle / 16

1

0

Wave form cycle / 8

1

1

Wave form cycle / 4

It is a theoretical value on logic control, and the reaction time of the analog section is not

D4 SRRGB2(0) 0 included.

"Slope time" is the time from a slope start to a slope end.

D3

-

-

D2

TRGB2(2)

0

D1

TRGB2(1)

0

D0

TRGB2(0)

0

TRGB2(2)

0

0

0

0

1

1

1

1

-

TRGB2(1)

0

0

1

1

0

0

1

1

TRGB2(0)

0

1

0

1

0

1

0

1

-

Wave form cycle

0.131 s

0.52 s

1.05 s

2.10 s

4.19 s

8.39 s

12.6 s

16.8 s

Setting time is counted based on the frequency of OSC. The above-mentioned value is a value at the time of Typ (1MHz).

When operating by the external clock, input frequency is a value at the time of Typ (250kHz)

＊Refer to "●Use of a RGB wave setup " for the detailed function of each register of this page.

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© 2011 ROHM Co., Ltd. All rights reserved.

13/27

2011.04 - Rev.A

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