BD6095GU_技术文档

LED Drivers for LCD Backlights

Mulitifunction Backlight LED Driver

for Small LCD Panels (Charge Pump Type)

No.11040EAT31

BD6095GUL,BD6095GU

●Description

BD6095GUL/BD6095GU is “Intelligent LED Driver” that is the most suitable for the cellular phone.

It has many functions that are needed to "the upper side" of the cellular phone.

It has ALC function, that is “Low Power Consumption System” realized.

It has “Contents Adaptive Interface” (External PWM control), that is “Low Power Consumption System” realized.

It adopts the very thin CSP package that is the most suitable for the slim phone.

●Features

1) Total 5LEDs driver for LCD Backlight

It can set maximum 25.6mA /ch by 128steps (Current DAC) for LCD Display.

3LEDs(LED1~LED3) are same controlled.

Another 2LEDs(LED4~5) can be independent controlled. (Enable and Current setting)

2LEDs(LED4~5) can be attributed to “Main Group”.

“Main Group” can be controlled by Auto Luminous Control (ALC) system.

“Main Group” can be controlled by external PWM signal.

2) 1LED driver for Flash/Torch

It can set maximum 120mA for Flash LED Driver.

It has Flash mode and Torch mode, there can be changed by external pin or register.

3) Auto Luminous Control (ALC)

Main backlight can be controlled by ambient brightness.

Photo Diode, Photo Transistor, Photo IC(Linear/Logarithm) can be connected.

Bias source for ambient light sensor, gain and offset adjustment are built in.

LED driver current as ambient level can be customized.

4) 2ch Series Regulator (LDO)

It has selectable output voltage by the register.

LDO1,LDO2 : Iomax=150mA

5) Charge Pump DC/DC for LED driver

It has x1/x1.33/x1.5/x2 mode that will be selected automatically.

Soft start functions

Over voltage protection (Auto-return type)

Over current protection (Auto-return type)

6) Thermal shutdown (Auto-return type)

7) I²C BUS FS mode (max 400kHz)

8) VCSP50L3 (3.75mm², 0.55mmt max) Small and thin CSP package (BD6095GUL)

9) VCSP85H3 (3.75mm², 1.0mmt max) Small and thin CSP package (BD6095GU)

*This chip is not designed to protect itself against radioactive rays.

*This material may be changed on its way to designing.

*This material is not the official specification.

●Absolute Maximum Ratings (Ta=25 ^oC)

Parameter

Maximum voltage

Symbol

Ratings

Unit

VMAX

Pd

7

V

mW

^oC

Power Dissipation

1500

Operating Temperature Range

Storage Temperature Range

Topr

Tstg

-35 ~ +85

-55 ~ +150

^oC

note)Power dissipation deleting is 12.0mW/ ^oC, when it’s used in over 25 ^oC. (It’s deleting is on the board that is ROHM’s standard)

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2011.04 - Rev.A

1/41

BD6095GUL,BD6095GU

Technical Note

●Operating conditions (VBAT≥VIO, Ta=-35~85 ^oC)

Parameter

VBAT input voltage

VIO pin voltage

Symbol

Ratrings

Unit

VBAT

VIO

2.7~5.5

V

1.65~3.3

●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)

Limits

Parameter

Symbol

Unit

Condition

Min.

Typ.

Max.

【Circuit Current】

VBAT Circuit current 1

VBAT Circuit current 2

IBAT1

IBAT2

-

0.1

0.5

1.0

3.0

μA

RESETB=0V, VIO=0V

RESETB=0V, VIO=1.8V

LDO1=LDO2=ON, I_LDO=0mA

Other blocks=OFF

VBAT Circuit current 3

VBAT Circuit current 4

VBAT Circuit current 5

VBAT Circuit current 6

VBAT Circuit current 7

IBAT3

IBAT4

IBAT5

IBAT6

IBAT7

-

90

61

150

65

μA

mA

DC/DC x1mode, I_LED=60mA

VBAT=3.7V, LED Vf=3.0V

DC/DC x1.33mode, I_LED=60mA

VBAT=3.1V, LED Vf=3.0V

DC/DC x1.5mode, I_LED=60mA

VBAT=2.9V, LED Vf=3.5V

DC/DC x2mode, I_LED=60mA

VBAT=3.2V, LED Vf=4.0V

Only ALC block ON

83

94

93

104

136

124

VBAT Circuit current 8

IBAT8

-

0.25

1.0

mA

ADCYC=0.5s setting

Except sensor current

【LED Driver】

LED current Step (Setup)

LED current Step (At slope)

LED current Step (Flash)

ILEDSTP1

ILEDSTP2

ILEDSTPFL

128

256

32

Step LED1~5

Step LEDFL

White LED Maximum setup current IMAXWLED

-

25.6

120

15

-

mA

%

LED1~5

Flash LED Maximum setup current

LED1~5 current accuracy

Flash LED current accuracy

LED current Matching

IMAXFLED

IWLED

-

-7%

-

LEDFL

+7%

4

I_LED=15mA setting at VLED=1.0V

I_LED=60mA setting at VLED=1.0V

Between LED1~5 at VLED=1.0V

VLED=4.5V

IFLED

60

ILEDMT

ILKLED

-

LED OFF Leak current

【DC/DC（Charge Pump)】

Maximum Output voltage

Current Load

-

1.0

μA

VoCP

IOUT

fosc

4.65

-

5.1

-

5.55

250

1.2

V

mA

MHz

VBAT≥3.2V, VOUT=4V

Oscillator frequency

0.8

1.0

Over Voltage Protection detect

voltage

Short Circuit current limit

OVP

Ilim

-

6.0

V

125

250

mA

VOUT=0V

【I²C Input (SDA, SCL)】

0.25 ×

VIO

VBAT

+0.3

LOW level input voltage

VIL

VIH

-0.3

-

V

0.75 ×

VIO

0.05 ×

VIO

HIGH level input voltage

Hysteresis of Schmitt trigger input

Vhys

-

LOW level output voltage

(SDA) at 3mA sink current

VOL

lin

0

-

0.3

3

V

Input current each I/O pin

-3

μA

Input voltage = 0.1×VIO~0.9×VIO

【RESETB】

0.25 ×

VIO

LOW level input voltage

VIL

-0.3

-

V

0.75 ×

VIO

-3

VBAT

+0.3

3

HIGH level input voltage

Input current each I/O pin

VIH

Iin

-

V

μA

Input voltage = 0.1×VIO~0.9×VIO

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2011.04 - Rev.A

2/41

BD6095GUL,BD6095GU

Technical Note

●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)

Limits

Parameter

Symbol

Unit

Condition

Min.

Typ.

Max.

【Regulator (LDO1)】

1.164

1.261

1.455

1.552

1.746

2.134

2.328

2.425

2.522

2.619

2.716

2.813

2.910

3.007

3.104

3.201

-

1.20

1.30

1.50

1.60

1.80

2.20

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

-

1.236

1.339

1.545

1.648

1.854

2.266

2.472

2.575

2.678

2.781

2.884

2.987

3.090

3.193

3.296

3.399

150

V

Io=50mA

V

Io=50mA <Initial Voltage>

Io=50mA

V

Io=50mA

V

Io=50mA

Output voltage

Vo1

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

Output Current

Dropout Voltage

Load stability

Io1

mA

Vo=1.8V

Vsat1

ΔVo11

ΔVo12

-

0.05

10

0.1

60

V

VBAT=2.5V, Io=50mA, Vo=2.8V

Io=1~150mA, Vo=1.8V

mV

Input voltage stability

10

VBAT=3.4~4.5V, Io=50mA, Vo=1.8V

f=100Hz, Vin=200mVp-p, Vo=1.2V

Io=50mA, BW=20Hz~20kHz

Ripple Rejection Ratio

RR1

-

65

-

dB

Short circuit current limit

Discharge resister at OFF

【Regulator (LDO2)】

Ilim1

-

200

1.0

400

1.5

mA

Vo=0V

ROFF1

kΩ

1.164

1.261

1.455

1.552

1.746

2.134

2.328

2.425

2.522

2.619

2.716

2.813

2.910

3.007

3.104

3.201

-

1.20

1.30

1.50

1.60

1.80

2.20

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.20

3.30

-

1.236

1.339

1.545

1.648

1.854

2.266

2.472

2.575

2.678

2.781

2.884

2.987

3.090

3.193

3.296

3.399

150

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA <Initial Voltage>

Io=50mA

Output voltage

Vo2

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

V

Io=50mA

Output Current

Dropout Voltage

Load stability

Io2

mA

Vo=2.5V

Vsat2

Δvo21

Δvo22

-

0.05

10

0.1

60

V

VBAT=2.5V, Io=50mA, Vo=2.8V

Io=1~150mA, Vo=2.5V

mV

Input voltage stability

10

VBAT=3.4~4.5V, Io=50mA, Vo=2.5V

f=100Hz, Vin=200mVp-p, Vo=1.2V

Io=50mA, BW=20Hz~20kHz

Ripple Rejection Ratio

RR2

-

65

-

dB

Short circuit current limit

Discharge resister at OFF

Ilim2

-

200

1.0

400

1.5

mA

Vo=0V

ROFF2

kΩ

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2011.04 - Rev.A

3/41

BD6095GUL,BD6095GU

Technical Note

●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)

Limits

Parameter

Symbol

Unit

Condition

Min.

Typ.

Max.

【Sensor Interface】

2.850

3.0

3.150

2.730

30

V

Io=200μA <Initial Voltage>

Io=200μA

SBIAS Output voltage

VoS

2.470

2.6

SBIAS Output current

SSENS Input range

IoS

-

0

-

mA

V

Vo=3.0V

VoS x

255/256

VISS

SBIAS Discharge resister at

OFF

ROFFS

ADRES

ADINL

ADDNL

RSSENS

1.0

8

-

1.5

kΩ

bit

ADC resolution

ADC non-linearity error

-3

-1

1

+3

+1

-

LSB

MΩ

ADC differential non-linearity

error

-

SSENS Input impedance

【WPWMIN】

-

L level input voltage

VILA

VIHA

-0.3

1.4

-

0.3

V

VBAT

+0.3

H level input voltage

Input current

IinA

3.6

-

10

-

μA

μs

Vin=1.8V

PWM input minimum High

pulse width

PWpwm

80

【GC1, GC2】

L level output voltage

VOLS

VOHS

-

0.2

-

V

IOL=1mA

IOH=1mA

VoS

-0.2

H level output voltage

【FLASHCNT】

L level input voltage

VILF

VIHF

IinF

-0.3

1.4

-

0.3

V

VBAT

+0.3

H level input voltage

Input current

3.6

10

μA

Vin=1.8V

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2011.04 - Rev.A

4/41

BD6095GUL,BD6095GU

Technical Note

●Block Diagram / Application Circuit example

1μF (6.3V)

VBAT

VBATCP

VOUT

VBAT1

Charge Pump

VBATLDO

2.2μF

(6.3V)

x1 / x1.33 / x1.5 / x2

10µF

LED1

LED2

LED3

LED4

LED5

OVP

Charge Pump

Mode Control

LED terminal voltage feedback

Back Light

VIO

RESETB

SCL

LEDFL

TSD

Level

Shift

I²C interface

Flash

I/O

SDA

Digital Control

WPWMIN

FLASHCNT

IREF

To LED1~5

LEDFL

VREF

LDO1

Vo selectable

Io=150mA

LDO1O

LDO2O

1μF

BH1600FVC SBIAS

1μF

LDO2

Vo selectable

Io=150mA

1μF

LED

control

Sensor

I/F

SSENS

GC1

GC2

SGND

ALC

Fig.1 Block Diagram / Application Circuit example

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2011.04 - Rev.A

5/41

BD6095GUL,BD6095GU

Technical Note

●Pin Arrangement ［Bottom View］

T4

LDO1O

SSENS

GC2

VBAT1

GC1

SBIAS

SGND

SCL

T3

VIO

C1N

C2N

C2P

T2

F

E

D

C

B

A

VBATLDO LDO2O

WPWMIN

LED3

LED4

T1

LED1

LED2

LED5

LEDFL

FLASHCNT

SDA

RESETB

VOUT

C3N

C1P

LEDGND

CPGND

VBATCP

C3P

1

2

3

4

5

6

Index

Total: 35 balls

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2011.04 - Rev.A

6/41

BD6095GUL,BD6095GU

Technical Note

●Package

●BD6095GUL

VCSP50L3

SIZE :

3.75mm

A ball pitch : 0.5mm

Height :

0.55mm max

BD6095

Lot No.

( Unit : mm )

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2011.04 - Rev.A

7/41

BD6095GUL,BD6095GU

Technical Note

●BD6095GU

VCSP85H3

SIZE :

3.75mm

A ball pitch : 0.5mm

Height :

1.0mm max

D6095

Lot No.

( Unit : mm )

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2011.04 - Rev.A

8/41

BD6095GUL,BD6095GU

Technical Note

●Pin Functions

ESD Diode

Equivalent

Circuit

No Ball No.

Pin Name

I/O

Functions

For

Ground

Power

1

B5

F4

E1

A1

A6

F6

F1

E6

C4

D4

D5

A3

B3

D6

C5

C6

B6

A4

A5

B4

F2

E2

D2

C2

C1

B1

B2

A2

F5

F3

E4

E3

E5

D1

D3

VBATCP

VBAT1

VBATLDO

T1

-

GND

-

Power supply for charge pump

Power supply

A

S

M

N

C

H

I

2

-

3

-

Power supply for LDO

4

I

VBAT

-

Test Input Pin (short to Ground)

Test Output Pin (Open)

5

T2

I

6

T3

O

-

7

T4

Test Output Pin (Open)

8

VIO

Power supply for I/O and Digital

Reset input (L: reset, H: reset cancel)

I²C data input / output

I²C clock input

9

RESETB

SDA

I

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

I/O

I

SCL

H

B

F

CPGND

LEDGND

C1N

-

Ground

-

Ground

I/O

O

I

GND

-

Charge Pump capacitor is connected

Charge Pump output pin

LDO1 output pin

C1P

G

F

C2N

VBAT

-

C2P

G

F

C3N

VBAT

-

C3P

G

A

Q

E

VOUT

LDO1O

LDO2O

LED1

LED2

LED3

LED4

LED5

LEDFL

SBIAS

SSENS

GC1

-

VBAT

-

LDO2 output pin

LED cathode connection 1

LED cathode connection 2

LED cathode connection 3

LED cathode connection 4

LED cathode connection 5

LED cathode connection for Flash

I

-

I

-

I

-

I

-

I

-

O

I

VBAT

Bias output for the Ambient Light Sensor

Ambient Light Sensor input

Q

N

X

B

L

O

-

Ambient Light Sensor gain control output 1

Ambient Light Sensor gain control output 2

Ground

GC2

SGND

WPWMIN

FLASHCNT

I

GND

External PWM input for Back Light

External enable for Flash

I

L

※

The LED terminal that isn't used is to short-circuit to the ground. But, the setup of a register concerned with LED that isn't used is prohibited.

Total: 35 Pin

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2011.04 - Rev.A

9/41

BD6095GUL,BD6095GU

Technical Note

●Equivalent Circuit

A

B

G

K

O

S

VBAT

C

H

L

VBAT

E

F

VBAT

VIO

I

VBAT

VIO

J

VBAT

VIO

VBAT

M ^VBAT

VBAT

N

VBAT

P

Q ^VBAT

VBAT

T

R

VBAT

X

VoS

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2011.04 - Rev.A

10/41

BD6095GUL,BD6095GU

Technical Note

●I²C BUS format

The writing/reading operation is based on the I²C slave standard.

・Slave address

A7

1

A6

1

A5

1

A4

0

A3

1

A2

1

A1

0

R/W

1/0

・Bit Transfer

SCL transfers 1-bit data during H. SCL cannot change signal of SDA during H at the time of bit transfer. If SDA changes

while SCL is H, START conditions or STOP conditions will occur and it will be interpreted as a control signal.

SDA

SCL

SDA a state of stability

Data are effective

SDA

It can change

：

・START and STOP condition

When SDA and SCL are H, data is not transferred on the I²C- bus. This condition indicates, if SDA changes from H to L

while SCL has been H, it will become START (S) conditions, and an access start, if SDA changes from L to H while SCL

has been H, it will become STOP (P) conditions and an access end.

SDA

SCL

S

P

STOP condition

START condition

・Acknowledge

It transfers data 8 bits each after the occurrence of START condition. A transmitter opens SDA after transfer 8bits data, and

a receiver returns the acknowledge signal by setting SDA to L.

DATA OUTPUT

BY TRANSMITTER

not acknowledge

DATA OUTPUT

BY RECEIVER

acknowledge

1

2

8

9

SCL

S

clock pulse for

acknowledgement

START condition

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2011.04 - Rev.A

11/41

BD6095GUL,BD6095GU

Technical Note

・Writing protocol

A register address is transferred by the next 1 byte that transferred the slave address and the write-in command. The 3rd

byte writes data in the internal register written in by the 2nd byte, and after 4th byte or, the increment of register address is

carried out automatically. However, when a register address turns into the last address, it is set to 00h by the next

transmission. After the transmission end, the increment of the address is carried out.

*1

0

A A7 A6 A5 A4 A3 A2 A1 A0 A D7D6D5D4D3D2D1D0 A

register address

DATA

D7D6D5 D4D3D2D1D0 A

DATA

P

S

X

slave address

register address

increment

register address

increment

R/W=0(write)

A=acknowledge(SDA LOW)

A=not acknowledge(SDA HIGH)

S=START condition

from master to slave

from slave to master

P=STOP condition

*1: Write Timing

・Reading protocol

It reads from the next byte after writing a slave address and R/W bit. The register to read considers as the following address

accessed at the end, and the data of the address that carried out the increment is read after it. If an address turns into the

last address, the next byte will read out 00h. After the transmission end, the increment of the address is carried out.

S

1

A D7 D6 D5 D4 D3 D2 D1 D0 A

DATA

D7 D6 D5 D4 D3 D2 D1 D0 A

DATA

P

X

X X X X X X

slave address

register address

increment

register address

increment

R/W=1(read)

A=acknowledge(SDA LOW)

A=not acknowledge(SDA HIGH)

S=START condition

from master to slave

from slave to master

P=STOP condition

・Multiple reading protocols

After specifying an internal address, it reads by repeated START condition and changing the data transfer direction. The

data of the address that carried out the increment is read after it. If an address turns into the last address, the next byte will

read out 00h. After the transmission end, the increment of the address is carried out.

S

A

A Sr

1 A

X X X X X X X

slave address

0

A7A6A5A4A3A2A1A0

register address

X X X X X X X

slave address

R/W=0(write)

R/W=1(read)

A

P

D7D6D5D4D3D2D1D0 A

DATA

D7D6D5D4D3D2D1D0

DATA

register address

increment

register address

increment

A=acknowledge(SDA LOW)

A=not acknowledge(SDA HIGH)

S=START condition

P=STOP condition

Sr=repeated START condition

from master to slave

from slave to master

As for reading protocol and multiple reading protocols, please do A(not acknowledge) after doing the final reading operation.

It stops with read when ending by A(acknowledge), and SDA stops in the state of Low when the reading data of that time is

0. However, this state returns usually when SCL is moved, data is read, and A(not acknowledge) is done.

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2011.04 - Rev.A

12/41

BD6095GUL,BD6095GU

Technical Note

●Timing diagram

SDA

t BUF

t SU;DAT

t HD;STA

t LOW

SCL

t SU;STO

t SU;STA

t HD;STA

S

t HD;DAT

Sr

P

S

t HIGH

●Electrical Characteristics(Unless otherwise specified, Ta=25 ^oC, VBAT=3.6V, VIO=1.8V)

Standard-mode

Fast-mode

Typ.

Parameter

【I²C BUS format】

Symbol

Unit

Min.

Typ.

Max.

Min.

Max.

SCL clock frequency

fSCL

tLOW

0

-

100

0

-

400

kHz

μs

ns

μs

LOW period of the SCL clock

HIGH period of the SCL clock

4.7

4.0

4.7

0

-

1.3

0.6

0

-

tHIGH

-

Hold time (repeated) START condition

After this period, the first clock is generated

tHD;STA

tSU;STA

tHD;DAT

tSU;DAT

tSU;STO

tBUF

-

Set-up time for a repeated START condition

Data hold time

-

3.45

0.9

Data set-up time

250

4.0

4.7

-

100

0.6

1.3

-

Set-up time for STOP condition

Bus free time between a STOP

and START condition

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2011.04 - Rev.A

13/41

BD6095GUL,BD6095GU

Technical Note

●Register List

Register data

D3

Address W/R

Function

D7

-

D6

-

D5

-

D4

-

D2

-

D1

-

D0

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

12h

13h

14h

15h

16h

17h

18h

19h

1Ah

1Bh

1Ch

1Dh

W

-

SFTRST

Software Reset

-

LED5MD(1)

TORCHEN

IMLED(6)

ISLED(6)

-

LED5MD(0)

SLEDEN

IMLED(5)

ISLED(5)

-

LED4MD

MLEDEN

IMLED(4)

ISLED(4)

IFTLED(4)

IFFLED(4)

-

WPWMEN

-

ALCEN

LDO2EN

IMLED(1)

ISLED(1)

IFTLED(1)

IFFLED(1)

MLEDMD

LDO1EN

IMLED(0)

ISLED(0)

IFTLED(0)

IFFLED(0)

LED, ALC Control

Power Control

FLASHEN

-

“Main Group” LED Current Setting

at non-ALC mode

-

IMLED(3)

ISLED(3)

IFTLED(3)

IFFLED(3)

IMLED(2)

ISLED(2)

IFTLED(2)

IFFLED(2)

“Sub Group” LED Current Setting

Flash LED “Torch mode”

Current Setting

Flash LED “Flash mode”

Current Setting

-

LDO2VSEL(3) LDO2VSEL(2) LDO2VSEL(1) LDO2VSEL(0) LDO1VSEL(3) LDO1VSEL(2) LDO1VSEL(1) LDO1VSEL(0)

LDO1, LDO2 Vout Setting

Main Current transition

THL(3)

THL(2)

-

THL(1)

-

THL(0)

-

TLH(3)

-

TLH(2)

-

TLH(1)

-

TLH(0)

-

W

R

ADCYC(1)

ADCYC(0)

SOFS(2)

-

GAIN(1)

SOFS(1)

-

GAIN(0)

SOFS(0)

-

STYPE

SGAIN(3)

AMB(3)

IU0(3)

IU1(3)

IU2(3)

IU3(3)

IU4(3)

IU5(3)

IU6(3)

IU7(3)

IU8(3)

IU9(3)

IUA(3)

IUB(3)

IUC(3)

IUD(3)

IUE(3)

IUF(3)

VSB

MDCIR

SGAIN(1)

AMB(1)

IU0(1)

IU1(1)

IU2(1)

IU3(1)

IU4(1)

IU5(1)

IU6(1)

IU7(1)

IU8(1)

IU9(1)

IUA(1)

IUB(1)

IUC(1)

IUD(1)

IUE(1)

IUF(1)

SBIASON

SGAIN(0)

AMB(0)

IU0(0)

IU1(0)

IU2(0)

IU3(0)

IU4(0)

IU5(0)

IU6(0)

IU7(0)

IU8(0)

IU9(0)

IUA(0)

IUB(0)

IUC(0)

IUD(0)

IUE(0)

IUF(0)

ALC mode setting

SOFS(3)

SGAIN(2)

AMB(2)

IU0(2)

IU1(2)

IU2(2)

IU3(2)

IU4(2)

IU5(2)

IU6(2)

IU7(2)

IU8(2)

IU9(2)

IUA(2)

IUB(2)

IUC(2)

IUD(2)

IUE(2)

IUF(2)

ADC Data adjustment

-

Ambient level

W

IU0(6)

IU1(6)

IU2(6)

IU3(6)

IU4(6)

IU5(6)

IU6(6)

IU7(6)

IU8(6)

IU9(6)

IUA(6)

IUB(6)

IUC(6)

IUD(6)

IUE(6)

IUF(6)

IU0(5)

IU1(5)

IU2(5)

IU3(5)

IU4(5)

IU5(5)

IU6(5)

IU7(5)

IU8(5)

IU9(5)

IUA(5)

IUB(5)

IUC(5)

IUD(5)

IUE(5)

IUF(5)

IU0(4)

IU1(4)

IU2(4)

IU3(4)

IU4(4)

IU5(4)

IU6(4)

IU7(4)

IU8(4)

IU9(4)

IUA(4)

IUB(4)

IUC(4)

IUD(4)

IUE(4)

IUF(4)

Main Current at Ambient level 0h

Main Current at Ambient level 1h

Main Current at Ambient level 2h

Main Current at Ambient level 3h

Main Current at Ambient level 4h

Main Current at Ambient level 5h

Main Current at Ambient level 6h

Main Current at Ambient level 7h

Main Current at Ambient level 8h

Main Current at Ambient level 9h

Main Current at Ambient level Ah

Main Current at Ambient level Bh

Main Current at Ambient level Ch

Main Current at Ambient level Dh

Main Current at Ambient level Eh

Main Current at Ambient level Fh

Input "0” for "-".

Prohibit to accessing the address that isn’t mentioned.

The time indicated by register explanation is the TYP time made by dividing of the built-in OSC.

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2011.04 - Rev.A

14/41

BD6095GUL,BD6095GU

Technical Note

●Register Map

Address 00h < Software Reset >

Address

00h

R/W

W

Bit7

-

Bit6

-

Bit5

-

Bit4

-

Bit3

-

Bit2

-

Bit1

-

Bit0

SFTRST

Initial

Value

00h

-

0

Bit [7:1] : (Not used)

Bit0 : SFTRST Software Reset Command

“0” :

“1” :

Reset cancel

Reset (All register initializing)

Refer to “The explanation of Reset” for detail.

Address 01h < LED, ALC Control >

Address

01h

R/W

W

Bit7

-

Bit6

Bit5

Bit4

Bit3

-

Bit2

Bit1

Bit0

LED5MD(1) LED5MD(0) LED4MD

WPWMEN

ALCEN

MLEDMD

Initial

Value

00h

-

0

-

0

Bit7 :

(Not used)

Bit [6:5] : LED5MD(1:0)

LED5 Group Select (Main/Sub/OFF)

“00” : LED5 OFF

“01” : reserved

“10” : LED5 “Sub Group”

“11” : LED5 “Main Group”

Refer to “The explanation of LED Driver” for detail.

Bit4 :

LED4MD

“0” :

LED4 Group Select (Main/Sub)

LED4 “Sub Group”

“1” :

LED4 “Main Group”

Refer to “The explanation of LED Driver” for detail.

Bit3 :

Bit2 :

(Not used)

WPWMEN External PWM Input “WPWMIN” terminal Enable Control (Valid/Invalid)

“0” :

“1” :

WPWMIN input invalid

WPWMIN input valid

Refer to “(11) Current Adjustment” of “The explanation of ALC” for detail.

Bit1 :

Bit0 :

ALCEN

“0” :

“1” :

ALC Function Control (ON/OFF)

ALC function OFF

ALC function ON

Refer to “(1) Auto Luminous Control ON/OFF” of “The explanation of ALC” for detail.

MLEDMD

“0” :

“1” :

“Main Group” LED Mode Select (Non ALC / with ALC)

Non ALC mode

ALC mode

Refer to “(1) Auto Luminous Control ON/OFF” of “The explanation of ALC” for detail.

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2011.04 - Rev.A

15/41

BD6095GUL,BD6095GU

Technical Note

Address 02h < Power Control >

Address

02h

R/W

W

Bit7

Bit6

Bit5

Bit4

Bit3

-

Bit2

-

Bit1

Bit0

FLASHEN TORCHEN SLEDEN

MLEDEN

LDO2EN

LDO1EN

Initial

Value

00h

0

-

0

Bit [7:6] : FLASHEN, TORCHEN

LEDFL Control (Flash ON / Torch ON / OFF)

(At FLASHCNT=L)

LEDFL: OFF,

(At FLASHCNT=H)

Flash mode ON

"FLASHCNT" means external pin.

“00” :

“01” :

“10” :

“11” :

LEDFL: Torch mode ON,

LEDFL: Flash mode ON,

reserved

For Torch/Flash, refer to “Flash LED Current Setting” (address 05h, 06h)

At FLASHCNT=H, even if RESETB=L, the Flash mode becomes ON, and LED is turned on.

But, the setup of LED current becomes the minimum setting in this case.

(Because the setting of LED current is reset at the time of RESETB=L.)

Refer to “The explanation of LED Driver” for detail.

Bit5 :

Bit4 :

SLEDEN

“0” :

Sub Group LED Control (ON/OFF)

“Sub Group” LED OFF

“1” :

“Sub Group” LED ON

MLEDEN Main Group LED Control (ON/OFF)

“0” :

“1” :

“Main Group” LED OFF

“Main Group” LED ON

Bit [3:2] : (Not used)

Bit1 :

LDO2EN

“0” :

LDO2 Control (ON/OFF)

LDO2 OFF

“1” :

LDO2 ON

Bit0 :

LDO1EN

“0” :

LDO1 Control (ON/OFF)

LDO1 OFF

“1” :

LDO1 ON

www.rohm.com

2011.04 - Rev.A

16/41

BD6095GUL,BD6095GU

Technical Note

Address 03h < “Main Group” LED Current Setting at non-ALC mode >

Address

03h

R/W

W

Bit7

-

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

IMLED(6) IMLED(5) IMLED(4) IMLED(3) IMLED(2) IMLED(1) IMLED(0)

Initial

Value

00h

-

0

Bit7 :

(Not used)

Bit [6:0] : IMLED(6:0)

Main Group LED Current Setting at non-ALC mode

“0000000” :

0.2 mA

0.4 mA

0.6 mA

0.8 mA

1.0 mA

1.2 mA

1.4 mA

1.6 mA

1.8 mA

2.0 mA

2.2 mA

2.4 mA

2.6 mA

2.8 mA

3.0 mA

3.2 mA

3.4 mA

3.6 mA

3.8 mA

4.0 mA

4.2 mA

4.4 mA

4.6 mA

4.8 mA

5.0 mA

5.2 mA

5.4 mA

5.6 mA

5.8 mA

6.0 mA

6.2 mA

6.4 mA

6.6 mA

6.8 mA

7.0 mA

7.2 mA

7.4 mA

7.6 mA

7.8 mA

8.0 mA

8.2 mA

8.4 mA

8.6 mA

8.8 mA

9.0 mA

9.2 mA

9.4 mA

9.6 mA

9.8 mA

“1000000” : 13.0 mA

“1000001” : 13.2 mA

“1000010” : 13.4 mA

“1000011” : 13.6 mA

“1000100” : 13.8 mA

“1000101” : 14.0 mA

“1000110” : 14.2 mA

“1000111” : 14.4 mA

“1001000” : 14.6 mA

“1001001” : 14.8 mA

“1001010” : 15.0 mA

“1001011” : 15.2 mA

“1001100” : 15.4 mA

“1001101” : 15.6 mA

“1001110” : 15.8 mA

“1001111” : 16.0 mA

“1010000” : 16.2 mA

“1010001” : 16.4 mA

“1010010” : 16.6 mA

“1010011” : 16.8 mA

“1010100” : 17.0 mA

“1010101” : 17.2 mA

“1010110” : 17.4 mA

“1010111” : 17.6 mA

“1011000” : 17.8 mA

“1011001” : 18.0 mA

“1011010” : 18.2 mA

“1011011” : 18.4 mA

“1011100” : 18.6 mA

“1011101” : 18.8 mA

“1011110” : 19.0 mA

“1011111” : 19.2 mA

“1100000” : 19.4 mA

“1100001” : 19.6 mA

“1100010” : 19.8 mA

“1100011” : 20.0 mA

“1100100” : 20.2 mA

“1100101” : 20.4 mA

“1100110” : 20.6 mA

“1100111” : 20.8 mA

“1101000” : 21.0 mA

“1101001” : 21.2 mA

“1101010” : 21.4 mA

“1101011” : 21.6 mA

“1101100” : 21.8 mA

“1101101” : 22.0 mA

“1101110” : 22.2 mA

“1101111” : 22.4 mA

“1110000” : 22.6 mA

“1110001” : 22.8 mA

“1110010” : 23.0 mA

“1110011” : 23.2 mA

“1110100” : 23.4 mA

“1110101” : 23.6 mA

“1110110” : 23.8 mA

“1110111” : 24.0 mA

“1111000” : 24.2 mA

“1111001” : 24.4 mA

“1111010” : 24.6 mA

“1111011” : 24.8 mA

“1111100” : 25.0 mA

“1111101” : 25.2 mA

“0000001” :

“0000010” :

“0000011” :

“0000100” :

“0000101” :

“0000110” :

“0000111” :

“0001000” :

“0001001” :

“0001010” :

“0001011” :

“0001100” :

“0001101” :

“0001110” :

“0001111” :

“0010000” :

“0010001” :

“0010010” :

“0010011” :

“0010100” :

“0010101” :

“0010110” :

“0010111” :

“0011000” :

“0011001” :

“0011010” :

“0011011” :

“0011100” :

“0011101” :

“0011110” :

“0011111” :

“0100000” :

“0100001” :

“0100010” :

“0100011” :

“0100100” :

“0100101” :

“0100110” :

“0100111” :

“0101000” :

“0101001” :

“0101010” :

“0101011” :

“0101100” :

“0101101” :

“0101110” :

“0101111” :

“0110000” :

“0110001” : 10.0 mA

“0110010” : 10.2 mA

“0110011” : 10.4 mA

“0110100” : 10.6 mA

“0110101” : 10.8 mA

“0110110” : 11.0 mA

“0110111” : 11.2 mA

“0111000” : 11.4 mA

“0111001” : 11.6 mA

“0111010” : 11.8 mA

“0111011” : 12.0 mA

“0111100” : 12.2 mA

“0111101” : 12.4 mA

“0111110” : 12.6 mA

“1111110” :

“1111111” :

25.4 mA

25.6 mA

“0111111” :

12.8 mA

www.rohm.com

2011.04 - Rev.A

17/41

BD6095GUL,BD6095GU

Technical Note

Address 04h < “Sub Group” LED Current Setting >

Address

04h

R/W

W

Bit7

-

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

ISLED(6) ISLED(5) ISLED(4) ISLED(3) ISLED(2) ISLED(1) ISLED(0)

Initial

Value

00h

-

0

Bit7 :

(Not used)

Bit [6:0] : ISLED(6:0)

Sub Group LED Current Setting

“0000000” :

0.2 mA

0.4 mA

0.6 mA

0.8 mA

1.0 mA

1.2 mA

1.4 mA

1.6 mA

1.8 mA

2.0 mA

2.2 mA

2.4 mA

2.6 mA

2.8 mA

3.0 mA

3.2 mA

3.4 mA

3.6 mA

3.8 mA

4.0 mA

4.2 mA

4.4 mA

4.6 mA

4.8 mA

5.0 mA

5.2 mA

5.4 mA

5.6 mA

5.8 mA

6.0 mA

6.2 mA

6.4 mA

6.6 mA

6.8 mA

7.0 mA

7.2 mA

7.4 mA

7.6 mA

7.8 mA

8.0 mA

8.2 mA

8.4 mA

8.6 mA

8.8 mA

9.0 mA

9.2 mA

9.4 mA

9.6 mA

9.8 mA

“1000000” : 13.0 mA

“1000001” : 13.2 mA

“1000010” : 13.4 mA

“1000011” : 13.6 mA

“1000100” : 13.8 mA

“1000101” : 14.0 mA

“1000110” : 14.2 mA

“1000111” : 14.4 mA

“1001000” : 14.6 mA

“1001001” : 14.8 mA

“1001010” : 15.0 mA

“1001011” : 15.2 mA

“1001100” : 15.4 mA

“1001101” : 15.6 mA

“1001110” : 15.8 mA

“1001111” : 16.0 mA

“1010000” : 16.2 mA

“1010001” : 16.4 mA

“1010010” : 16.6 mA

“1010011” : 16.8 mA

“1010100” : 17.0 mA

“1010101” : 17.2 mA

“1010110” : 17.4 mA

“1010111” : 17.6 mA

“1011000” : 17.8 mA

“1011001” : 18.0 mA

“1011010” : 18.2 mA

“1011011” : 18.4 mA

“1011100” : 18.6 mA

“1011101” : 18.8 mA

“1011110” : 19.0 mA

“1011111” : 19.2 mA

“1100000” : 19.4 mA

“1100001” : 19.6 mA

“1100010” : 19.8 mA

“1100011” : 20.0 mA

“1100100” : 20.2 mA

“1100101” : 20.4 mA

“1100110” : 20.6 mA

“1100111” : 20.8 mA

“1101000” : 21.0 mA

“1101001” : 21.2 mA

“1101010” : 21.4 mA

“1101011” : 21.6 mA

“1101100” : 21.8 mA

“1101101” : 22.0 mA

“1101110” : 22.2 mA

“1101111” : 22.4 mA

“1110000” : 22.6 mA

“1110001” : 22.8 mA

“1110010” : 23.0 mA

“1110011” : 23.2 mA

“1110100” : 23.4 mA

“1110101” : 23.6 mA

“1110110” : 23.8 mA

“1110111” : 24.0 mA

“1111000” : 24.2 mA

“1111001” : 24.4 mA

“1111010” : 24.6 mA

“1111011” : 24.8 mA

“1111100” : 25.0 mA

“1111101” : 25.2 mA

“0000001” :

“0000010” :

“0000011” :

“0000100” :

“0000101” :

“0000110” :

“0000111” :

“0001000” :

“0001001” :

“0001010” :

“0001011” :

“0001100” :

“0001101” :

“0001110” :

“0001111” :

“0010000” :

“0010001” :

“0010010” :

“0010011” :

“0010100” :

“0010101” :

“0010110” :

“0010111” :

“0011000” :

“0011001” :

“0011010” :

“0011011” :

“0011100” :

“0011101” :

“0011110” :

“0011111” :

“0100000” :

“0100001” :

“0100010” :

“0100011” :

“0100100” :

“0100101” :

“0100110” :

“0100111” :

“0101000” :

“0101001” :

“0101010” :

“0101011” :

“0101100” :

“0101101” :

“0101110” :

“0101111” :

“0110000” :

“0110001” : 10.0 mA

“0110010” : 10.2 mA

“0110011” : 10.4 mA

“0110100” : 10.6 mA

“0110101” : 10.8 mA

“0110110” : 11.0 mA

“0110111” : 11.2 mA

“0111000” : 11.4 mA

“0111001” : 11.6 mA

“0111010” : 11.8 mA

“0111011” : 12.0 mA

“0111100” : 12.2 mA

“0111101” : 12.4 mA

“0111110” : 12.6 mA

“1111110” :

“1111111” :

25.4 mA

25.6 mA

“0111111” :

12.8 mA

www.rohm.com

2011.04 - Rev.A

18/41

BD6095GUL,BD6095GU

Technical Note

Address 05h < Flash LED “Torch mode” Current Setting >

Address

05h

R/W

W

Bit7

-

Bit6

-

Bit5

-

Bit4

Bit3

Bit2

Bit1

Bit0

IFTLED(4) IFTLED(3) IFTLED(2) IFTLED(1) IFTLED(0)

Initial

Value

00h

-

0

Bit [7:5] : (Not used)

Bit [4:0] : IFTLED(4:0) “Torch mode” of LEDFL Current Setting

“00000” :

“00001” :

“00010” :

“00011” :

“00100” :

“00101” :

“00110” :

“00111” :

“01000” :

“01001” :

“01010” :

“01011” :

“01100” :

“01101” :

“01110” :

“01111” :

“10000” :

“10001” :

“10010” :

“10011” :

“10100” :

“10101” :

“10110” :

“10111” :

“11000” :

“11001” :

3.75 mA

7.50 mA

(Initial value)

11.25 mA

15.00 mA

18.75 mA

22.50 mA

26.25 mA

30.00 mA

33.75 mA

37.50 mA

41.25 mA

45.00 mA

48.75 mA

52.50 mA

56.25 mA

60.00 mA

63.75 mA

67.50 mA

71.25 mA

75.00 mA

78.75 mA

82.50 mA

86.25 mA

90.00 mA

93.75 mA

97.50 mA

“11010” : 101.25 mA

“11011” : 105.00 mA

“11100” : 108.75 mA

“11101” : 112.50 mA

“11110” : 116.25 mA

“11111” : 120.00 mA

* LED Current : 120 x 1/32 mA Step ( =3.75 mA Step)

www.rohm.com

2011.04 - Rev.A

19/41

BD6095GUL,BD6095GU

Technical Note

Address 06h < Flash LED “Flash mode” Current Setting >

Address

06h

R/W

W

Bit7

-

Bit6

-

Bit5

-

Bit4

Bit3

Bit2

Bit1

Bit0

IFFLED(4) IFFLED(3) IFFLED(2) IFFLED(1) IFFLED(0)

Initial

Value

00h

-

0

Bit [7:5] : (Not used)

Bit [4:0] : IFFLED(4:0) “Flash mode” of LEDFL Current Setting

“00000” :

“00001” :

“00010” :

“00011” :

“00100” :

“00101” :

“00110” :

“00111” :

“01000” :

“01001” :

“01010” :

“01011” :

“01100” :

“01101” :

“01110” :

“01111” :

“10000” :

“10001” :

“10010” :

“10011” :

“10100” :

“10101” :

“10110” :

“10111” :

“11000” :

“11001” :

3.75 mA

7.50 mA

(Initial value)

11.25 mA

15.00 mA

18.75 mA

22.50 mA

26.25 mA

30.00 mA

33.75 mA

37.50 mA

41.25 mA

45.00 mA

48.75 mA

52.50 mA

56.25 mA

60.00 mA

63.75 mA

67.50 mA

71.25 mA

75.00 mA

78.75 mA

82.50 mA

86.25 mA

90.00 mA

93.75 mA

97.50 mA

“11010” : 101.25 mA

“11011” : 105.00 mA

“11100” : 108.75 mA

“11101” : 112.50 mA

“11110” : 116.25 mA

“11111” : 120.00 mA

* LED Current : 120 x 1/32 mA Step ( =3.75 mA Step)

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

Address 07h < LDO1 Vout Control, LDO2 Vout Control >

Address

07h

R/W

W

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

LDO2VSEL(3)LDO2VSEL(2)LDO2VSEL(1)LDO2VSEL(0)LDO1VSEL(3)LDO1VSEL(2)LDO1VSEL(1)LDO1VSEL(0)

Initial

Value

74h

0

1

0

1

0

Bit [7:4] : LDO2VSEL(3:0)

LDO2 Output Voltage Control

“0000” : 1.20 V

“0001” : 1.30 V

“0010” : 1.50 V

“0011” : 1.60 V

“0100” : 1.80 V

“0101” : 2.20 V

“0110” : 2.40 V

“0111” : 2.50 V

“1000” : 2.60 V

“1001” : 2.70 V

“1010” : 2.80 V

“1011” : 2.90 V

“1100” : 3.00 V

“1101” : 3.10 V

“1110” : 3.20 V

“1111” : 3.30 V

(Initial value)

Bit [3:0] : LDO1VSEL(3:0)

“0000” : 1.20 V

“0001” : 1.30 V

“0010” : 1.50 V

“0011” : 1.60 V

“0100” : 1.80 V

“0101” : 2.20 V

“0110” : 2.40 V

“0111” : 2.50 V

“1000” : 2.60 V

“1001” : 2.70 V

“1010” : 2.80 V

“1011” : 2.90 V

“1100” : 3.00 V

“1101” : 3.10 V

“1110” : 3.20 V

“1111” : 3.30 V

LDO1 Output Voltage Control

(Initial value)

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

Address 08h < Main Current transition >

Address

08h

R/W

W

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

THL(3)

THL(2)

THL(1)

THL(0)

TLH(3)

TLH(2)

TLH(1)

TLH(0)

Initial

Value

C7h

1

0

1

Bit [7:4] : THL(3:0)

“0000” :

“0001” :

“0010” :

“0011” :

“0100” :

“0101” :

“0110” :

“0111” :

Main LED current Down transition per 0.2mA step

0.256 ms

0.512 ms

1.024 ms

2.048 ms

4.096 ms

8.192 ms

16.38 ms

32.77 ms

65.54 ms

131.1 ms

196.6 ms

262.1 ms

“1000” :

“1001” :

“1010” :

“1011” :

“1100” :

“1101” :

“1110” :

327.7 ms

393.2 ms

458.8 ms

524.3 ms

(Initial value)

“1111” :

Setting time is counted based on the switching frequency of Charge Pump.

The above value becomes the value of the Typ (1MHz) time.

Refer to “(9) Slope Process” of “The explanation of ALC” for detail.

Bit [3:0] : TLH(3:0)

Main LED current Up transition per 0.2mA step

“0000” :

“0001” :

“0010” :

“0011” :

“0100” :

“0101” :

“0110” :

“0111” :

“1000” :

“1001” :

“1010” :

“1011” :

“1100” :

“1101” :

“1110” :

“1111” :

0.256 ms

0.512 ms

1.024 ms

2.048 ms

4.096 ms

8.192 ms

16.38 ms

32.77 ms

65.54 ms

131.1 ms

196.6 ms

262.1 ms

327.7 ms

393.2 ms

458.8 ms

524.3 ms

(Initial value)

Setting time is counted based on the switching frequency of Charge Pump.

The above value becomes the value of the Typ (1MHz) time.

Refer to “(9) Slope Process” of “The explanation of ALC” for detail.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

Address 0Bh < ALC mode setting >

Address

0Bh

R/W

W

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

ADCYC(1) ADCYC(0) GAIN(1)

GAIN(0)

STYPE

VSB

MDCIR

SBIASON

Initial

Value

81h

1

0

1

Bit [7:6] : ADCYC(1:0)

ADC Measurement Cycle

0.52 s

1.05 s

“00” :

“01” :

“10” :

“11” :

1.57 s (Initial value)

2.10 s

Refer to “(4) A/D conversion” of “The explanation of ALC” for detail.

Bit [5:4] : GAIN(1:0)

Sensor Gain Switching Function Control (This is effective only at STYPE=“0”.)

“00” :

“01” :

“10” :

“11” :

Auto Change (Initial value)

High

Low

Fixed

Refer to “(3) Gain control” of “The explanation of ALC” for detail.

Bit3 :

Bit2 :

Bit1 :

Bit0 :

STYPE

“0” :

Ambient Light Sensor Type Select (Linear/Logarithm)

For Linear sensor (Initial value)

For Log sensor

“1” :

Refer to “(7) Ambient level detection” of “The explanation of ALC” for detail.

VSB

“0” :

“1” :

SBIAS Output Voltage Control

SBIAS output voltage 3.0V

SBIAS output voltage 2.6V

(Initial value)

Refer to “(2) I/V conversion” of “The explanation of ALC” for detail.

MDCIR

“0” :

LED Current Reset Select by Mode Change

LED current non-reset when mode change

LED current reset when mode change

(Initial value)

“1” :

Refer to “(10) LED current reset when mode change” of “The explanation of ALC” for detail.

SBIASON

“0” :

SBIAS Control (ON/OFF)

Measurement cycle synchronous

Usually ON (at ALCEN=1) (Initial value)

“1” :

Refer to “(4) A/D conversion” of “The explanation of ALC” for detail.

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BD6095GUL,BD6095GU

Technical Note

Address 0Ch < ADC Data adjustment >

Address

0Ch

R/W

W

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

SOFS(3)

SOFS(2)

SOFS(1)

SOFS(0) SGAIN(3) SGAIN(2) SGAIN(1) SGAIN(0)

Initial

Value

00h

0

Bit [7:4] : SOFS(3:0) AD Data Offset Adjustment

“1000” :

“1001” :

“1010” :

“1011” :

“1100” :

“1101” :

“1110” :

“1111” :

“0000” :

“0001” :

“0010” :

“0011” :

“0100” :

“0101” :

“0110” :

“0111” :

-8 LSB

-7 LSB

-6 LSB

-5 LSB

-4 LSB

-3 LSB

-2 LSB

-1 LSB

non-adjust

+1 LSB

+2 LSB

+3 LSB

+4 LSB

+5 LSB

+6 LSB

+7 LSB

Offset adjust is performed to ADC data.

Refer to “(5) ADC data Gain/offset adjustment” of “The explanation of ALC” for detail.

Bit [3:0] : SGAIN(3:0)

AD Data Gain Adjustment

reserved

“1000” :

“1001” :

“1010” :

“1011” :

“1100” :

“1101” :

“1110” :

“1111” :

“0000” :

“0001” :

“0010” :

“0011” :

“0100” :

“0101” :

“0110” :

“0111” :

reserved

-37.50%

-31.25%

-25.00%

-18.75%

-12.50%

-6.25%

non-adjust

+6.25%

+12.50%

+18.75%

+25.00%

+31.25%

+37.50%

reserved

Gain adjust is performed to ADC data.

The data after adjustment are round off by 8-bit data.

Refer to “(5) ADC data Gain/offset adjustment” of “The explanation of ALC” for detail.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

Address 0Dh < Ambient level (Read Only) >

Address

0Dh

R/W

R

Bit7

-

Bit6

-

Bit5

-

Bit4

-

Bit3

Bit2

Bit1

Bit0

AMB(3)

AMB(2)

AMB(1)

AMB(0)

Initial

Value

-

Bit [7:4] : (Not used)

Bit [3:0] : AMB(3:0)

“0000” :

“0001” :

“0010” :

“0011” :

Ambient Level

0h

1h

2h

3h

4h

5h

6h

7h

8h

9h

Ah

Bh

Ch

Dh

Eh

Fh

“0100” :

“0101” :

“0110” :

“0111” :

“1000” :

“1001” :

“1010” :

“1011” :

“1100” :

“1101” :

“1110” :

“1111” :

The data can be read through I²C.

Refer to “(7) Ambient level detection” of “The explanation of ALC” for detail.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

Address 0Eh~1Dh < Main Current at Ambient level 0h~Fh >

Address

R/W

W

Bit7

-

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

0Eh~1Dh

IU*(6)

IU*(5)

IU*(4)

IU*(3)

IU*(2)

IU*(1)

IU*(0)

Initial

Value

-

Refer to after page for initial table.

“*” means 0~F.

Bit7 :

(Not used)

Bit [6:0] : IU*(6:0)

Main Current at Ambient Level for 0h~Fh

“0000000” :

“0000001” :

“0000010” :

“0000011” :

“0000100” :

“0000101” :

“0000110” :

“0000111” :

“0001000” :

“0001001” :

“0001010” :

“0001011” :

“0001100” :

“0001101” :

“0001110” :

“0001111” :

“0010000” :

“0010001” :

“0010010” :

“0010011” :

“0010100” :

“0010101” :

“0010110” :

“0010111” :

“0011000” :

“0011001” :

“0011010” :

“0011011” :

“0011100” :

“0011101” :

“0011110” :

“0011111” :

“0100000” :

“0100001” :

“0100010” :

“0100011” :

“0100100” :

“0100101” :

“0100110” :

“0100111” :

“0101000” :

“0101001” :

“0101010” :

“0101011” :

“0101100” :

“0101101” :

“0101110” :

“0101111” :

“0110000” :

0.2 mA

0.4 mA

0.6 mA

0.8 mA

1.0 mA

1.2 mA

1.4 mA

1.6 mA

1.8 mA

2.0 mA

2.2 mA

2.4 mA

2.6 mA

2.8 mA

3.0 mA

3.2 mA

3.4 mA

3.6 mA

3.8 mA

4.0 mA

4.2 mA

4.4 mA

4.6 mA

4.8 mA

5.0 mA

5.2 mA

5.4 mA

5.6 mA

5.8 mA

6.0 mA

6.2 mA

6.4 mA

6.6 mA

6.8 mA

7.0 mA

7.2 mA

7.4 mA

7.6 mA

7.8 mA

8.0 mA

8.2 mA

8.4 mA

8.6 mA

8.8 mA

9.0 mA

9.2 mA

9.4 mA

9.6 mA

9.8 mA

“1000000” : 13.0 mA

“1000001” : 13.2 mA

“1000010” : 13.4 mA

“1000011” : 13.6 mA

“1000100” : 13.8 mA

“1000101” : 14.0 mA

“1000110” : 14.2 mA

“1000111” : 14.4 mA

“1001000” : 14.6 mA

“1001001” : 14.8 mA

“1001010” : 15.0 mA

“1001011” : 15.2 mA

“1001100” : 15.4 mA

“1001101” : 15.6 mA

“1001110” : 15.8 mA

“1001111” : 16.0 mA

“1010000” : 16.2 mA

“1010001” : 16.4 mA

“1010010” : 16.6 mA

“1010011” : 16.8 mA

“1010100” : 17.0 mA

“1010101” : 17.2 mA

“1010110” : 17.4 mA

“1010111” : 17.6 mA

“1011000” : 17.8 mA

“1011001” : 18.0 mA

“1011010” : 18.2 mA

“1011011” : 18.4 mA

“1011100” : 18.6 mA

“1011101” : 18.8 mA

“1011110” : 19.0 mA

“1011111” : 19.2 mA

“1100000” : 19.4 mA

“1100001” : 19.6 mA

“1100010” : 19.8 mA

“1100011” : 20.0 mA

“1100100” : 20.2 mA

“1100101” : 20.4 mA

“1100110” : 20.6 mA

“1100111” : 20.8 mA

“1101000” : 21.0 mA

“1101001” : 21.2 mA

“1101010” : 21.4 mA

“1101011” : 21.6 mA

“1101100” : 21.8 mA

“1101101” : 22.0 mA

“1101110” : 22.2 mA

“1101111” : 22.4 mA

“1110000” : 22.6 mA

“1110001” : 22.8 mA

“1110010” : 23.0 mA

“1110011” : 23.2 mA

“1110100” : 23.4 mA

“1110101” : 23.6 mA

“1110110” : 23.8 mA

“1110111” : 24.0 mA

“1111000” : 24.2 mA

“1111001” : 24.4 mA

“1111010” : 24.6 mA

“1111011” : 24.8 mA

“1111100” : 25.0 mA

“1111101” : 25.2 mA

“0110001” : 10.0 mA

“0110010” : 10.2 mA

“0110011” : 10.4 mA

“0110100” : 10.6 mA

“0110101” : 10.8 mA

“0110110” : 11.0 mA

“0110111” : 11.2 mA

“0111000” : 11.4 mA

“0111001” : 11.6 mA

“0111010” : 11.8 mA

“0111011” : 12.0 mA

“0111100” : 12.2 mA

“0111101” : 12.4 mA

“0111110” : 12.6 mA

“1111110” :

“1111111” :

25.4 mA

25.6 mA

“0111111” :

12.8 mA

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

●Explanation for operate

1. The explanation of Reset

There are two kinds of reset, software reset and hardware reset.

●Software reset

・All the registers are initialized by SFTRST="1".

・SFTRST is an automatically returned to "0". (Auto Return 0).

●Hardware reset

・It shifts to hardware reset by changing RESETB pin “H” → “L”.

・The condition of all the registers under hardware reset pin is returned to the initial value, and it stops accepting all address.

・It’s possible to release from a state of hardware reset by changing RESETB pin “L” → “H”.

・RESETB pin has delay circuit. It doesn’t recognize as hardware reset in “L” period under 5μs.

・Even if RESETB=L, at FLASHCNT=H, Flash mode becomes ON by minimum setting.

●Reset Sequence

・When hardware reset was done during software reset, software reset is canceled whenhardware reset is canceled.

(Because the initial value of software reset is “0”)

2. The explanation of Thermal shutdown

The blocks which thermal shutdown function is effective in the following.

Charge pump

LED Driver

LDO1, LDO2, SBIAS

A thermal shutdown function works in about 190^oC.

Detection temperature has a hysteresis, and detection release temperature is about 170 ^oC.(Design reference value)

3. The explanation of Charge Pump for LED driver

Charge Pump block is designed for the power supply for LED driver.

It has the x1.0/x1.33/x1.5/x2.0 mode. It changes to the most suitable mode automatically by Vf of LED and the battery

voltage. It has the mode of x1.33 and it can be higher efficiency than traditional.

●Start

Charge Pump circuit operates when any LED turns ON.

●Soft start

When the start of the Charge Pump circuit is done, it has the soft start function to prevent a rush current.

VBAT

T_VBATON

T_VBATOFF

VIO

T_VIOON=min

0.1ms

T_VIOOFF=min

1ms

RESETB

T_RSTB=min

0.1ms

T_RST=min

0ms

EN (*1)

T_SOFT

VOUT

LED Current

(*1) An EN signal in the upper figure means the following;

“EN is high” = Any LED turns ON

But if Ta >TSD, EN Signal doesn’t become effective.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

●Charge Pump Mode transition

The transition of boost multiple transits automatically by Vf of LED and the battery voltage.

STANDBY

ALL off

Any LED on

Ta<T_TSD

1

○

VBAT>2.3V(typ)

SOFT

CP x1.0 mode

After “VOUT>1.5V(typ)” detected, 142us(typ) wait

CP x1.0 mode

X1.0

mode up=”H”

mode down=”H”

CP x1.33 mode

X1.33

mode up=”H”

mode down=”H”

CP x1.5mode

X1.5

X2.0

mode up=”H”

mode down=”H”

CP x2.0mode

All LED OFF

RESET

BD6095GUL/BD6095GU changes the four charge pump movement mode automatically to realize low consumption power.

< Mode Up >

A LED terminal voltage is monitored, and the movement mode is changed to ×1→×1.33, ×1.33→×1.5 and ×1.5→×2

automatically when a LED terminal voltage is lower than 0.2V (typ).

At this time, the maximum output voltage of the charge pump is restricted to 5.1V (typ).

< Mode Down >

The rise in the battery voltage, the off control of LED lighting, “Main Group” LED current value and the data writing to

the address 04h,05h,06h (LED Current Setting) is monitored, and the movement mode is changed to

×2→×1.5→×1.33→×1 automatically.

This mode down movement lasts until a mode up movement happens.

At Flash mode and Torch mode, the mode down doesn't happen.

The thresholds of rise in a battery voltage are 2.9V, 3.3V, 3.7V and 4.1V (typ).

And, as for the off control of LED lighting, it is shown that MLEDEN, SLEDEN, TORCHEN, FLASHEN and

FLASHCNT transited in “1” →“0”.

●Over Voltage protection / Over Current protection

Charge Pump circuit output (VOUT) is equipped with the over-voltage protection and the over current protection

function. A VOUT over-voltage detection voltage is about 5.5V(typ). (VOUT at the time of rise in a voltage)

A detection voltage has a hysteresis, and a detection release voltage is about 5.1V(typ).

And, when VOUT output short to ground, input current of the battery terminal is limited by an over current protection

function.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

4. The explanation of LED Driver

●LED1~LED3

LED1~LED3 are same controlled. These are using for “Main backlight” and we call it “Main Group”.

Current setting: IMLED(6:0)

ON/OFF: MLEDEN (ON=1, OFF=0)

●LED4~LED5

LED4 and LED5 can be independent controlled. There are attributed to “Main Group” or “Sub Group”.

If these are attributed to “Main Group”, these are controlled by same as LED1~LED3.

Current setting: ISLED(6:0)

ON/OFF: SLEDEN (ON=1, OFF=0)

Current setting: IMLED(6:0)

ON/OFF: MLEDEN (ON=1, OFF=0)

●The number of LED Lighting (LED1~LED5)

The number of lighting for Main/Sub LED can be set up grouping by the register

The setting of the number of lighting is as the following.

The Main/Sub LED is independently controlled by register MLEDEN, SLEDEN.

Main/Sub

Setting Example

3 / 0 , 3 / 1

4 / 0

LED5MD(1) LED5MD(0)

LED4MD

LED1

LED2

LED3

LED4

LED5

0

1

0

1

0

1

0

1

0

1

Main

Sub

Main

Sub

OFF

Sub

3 / 0 , 3 / 2

4 / 0 , 4 / 1

5 / 0

Main

Sub

Main

The change of the Grouping setting with turning it on is prohibited.

The LED terminal that isn’t used must be connected to the ground.

●LEDFL

LEDFL is for Flash. It has the two mode, “Torch” and “Flash”.

Torch mode current: IFTLED(4:0)

Flash mode current: IFFLED(4:0)

ON/OFF: TORCHEN, FLASHEN, FLASHCNT (refer to “Power Control” address 02h)

Flash mode is started by the rise edge of FLASHEN or FLASHCNT.

At FLASHCNT=H, even if RESETB=L, the Flash mode becomes ON, and LED is turned on.

(But, the setup of LED current becomes the minimum setting in this case because current setting is reset.)

Please set FLASHCNT=L when you don't turn on Flash.

TORCHEN

FLASHEN or

FLASHCNT

FLASHEN or

FLASHCNT

IFFLED (4:0)

IFTLED (4:0)

LED current

< Torch mode >

< Flash mode >

< Torch mode >

< OFF >

< Flash mode >

< OFF >

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

5. The explanation of ALC (Auto Luminous Control)

LCD backlight current adjustment is possible in the basis of the data detected by external ambient light sensor.

• Extensive selection of the ambient light sensors (Photo Diode, Photo Transistor, Photo IC(linear/logarithm)) is

possible by building adjustment feature of Sensor bias, gain adjustment and offset adjustment.

• Ambient data is changed into ambient level by digital data processing, and it can be read through I²C I/F.

• Register setting can customize a conversion to LED current. (Initial value is pre-set.)

• Natural dimming of LED driver is possible with the adjustment of the current transition speed.

Usually ON / intermittent

PWM enabling

Output Voltage

WPWMIN

Offset Correction

SBIAS

ADC

SBIAS

Conversion

Table

Gain Correction

Sensor type

Slope Timer

Mode Select

LCD

BackLight

LED*

Average

Sensor

Slope

Data

Current

SSENS

Logarithmic Conv.

Ambient Level detect

process

Correction

Conversion

Main Group

LED Driver

GC1

GC2

Gain

Control

Main current setting

Sensor Gain Control

Ambient Level

Sensor I/F

LED control

* Wave form in this explanation just shows operation image, not shows absolute value precisely.

(1) Auto Luminous Control ON/OFF

・

ALC block can be independent setting ON/OFF.

It can use only to measure the Ambient level.

Register : ALCEN

Register : MLEDEN

Register : MLEDMD

・

Refer to under about the associate ALC mode and Main LED current.

ALCEN MLEDEN MLEDMD

Sensor I/F

LED control

OFF

Mode

Main LED current

0

1

0

1

0

1

x

0

1

x

0

1

OFF

-

OFF

IMLED(6:0)

IU0(6:0) (*1)

-

Non ALC

mode

( AMB(3:0)=0h )

ON

OFF

ON

ALC mode

IMLED(6:0)

ALC mode (*2)

(*1) At this mode, because Sensor I/F is OFF, AMB(3:0)=0h.

So, Main LED current is selected IU0(6:0).

(*2) At this mode, Main LED current is selected IU0(6:0)~IUF(6:0)

It becomes current value corresponding to each brightness.

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

(2) I/V conversion

・

The bias voltage and external resistance for the I-V conversion (Rs)

are adjusted with adaptation of sensor characteristic

The bias voltage is selectable by register setup.

Register : VSB

・

“0” : SBIAS output voltage 3.0V

“1” : SBIAS output voltage 2.6V

Ambient

SBIAS

SSENS voltage

VCC

VSSENS

Rs is large

Iout

Sensor IC

A/D

IOUT

SSENS

SGND

GND

Rs

BD6095GUL

Rs is small

Rs : Sense resistance (A sensor output current is changed into the voltage value.)

SBIAS : Bias power supply terminal for the sensor (3.0V / 2.6V by register setting)

SSENS : Sense voltage input terminal

Ambient

SSENS Voltage = Iout x Rs

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2011.04 - Rev.A

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BD6095GUL,BD6095GU

Technical Note

(3) Gain control

・

Sensor gain switching function is built in to extend the dynamic range.

It is controlled by register setup.

When automatic gain control is off, the gain status can be set up

in the manual.

High Gain mode

Register : GAIN(1:0)

・

GC1 and GC2 are outputted corresponding to each gain status.

Low Gain mode

Ambient

Auto Gain mode

Ambient

Example 3

Example 1 (Use BH1600FVC)

Example 2

SBIAS

SSENS

VCC

SSENS

IOUT

SSENS

Application

example

BH1600

GC1

GC2

GND

SGND

Resister values are relative

Manual

Operating mode

Auto

00

Auto

Fixed

High

01

Low

10

High

01

Low

10

GAIN(1:0) setting

Gain status

00

11

-

High Low High

L

Low High Low High

Low

L

GC1 output

L

GC2 output

L

: This means that it becomes High with A/D measurement cycle synchronously.

(*1) : Set up the relative ratio of the resistance in the difference in the brightness change of the High Gain mode and the Low Gain mode carefully.

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2011.04 - Rev.A

32/41

BD6095GUL,BD6095GU

Technical Note

(4) A/D conversion

・

The detection of ambient data is done periodically for the low power.

SBIAS and ADC are turned off except for the ambient measurement.

The sensor current may be shut in this function, it can possible to decrease the current consumption.

SBIAS pin and SSENS pin are pull-down in internal when there are OFF.

SBIAS circuit has the two modes. (Usually ON mode or intermittent mode)

Register : ADCYC(1:0)

Register : SBIASON

16 times

ALCEN

ADCYC(1:0)

ADC Cycle

SBIAS Output

T^{wait= 64ms(typ)}(Wait time)

When SBIASON=1

ADC Movement

T^{AD= 16.4ms(typ)}

AD start signal

(A/D conversion time)

GC1, GC2

GC1, GC2=00

TADone= 1.024ms(typ)

16 times measurement

AMB(3:0)

T^{oprt= 80.4ms(typ)}

(Operate time)

(5) ADC data Gain / offset adjustment

・

To correct the characteristic dispersion of the sensor,

Gain and offset adjustment to ADC output data is possible.

They are controlled by register setup.

Register : SGAIN(3:0)

・

Register : SOFS(3:0)

< Gain Adjustment >

Gain adjustment

SGAIN(3:0)

Ambient

< Offset Adjustment >

Offset adjustment

SOFS(3:0)

Ambient

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2011.04 - Rev.A

33/41

BD6095GUL,BD6095GU

Technical Note

(6) Average filter

・

Average filter is built in to rid noise or flicker.

Average is 16 times

(7) Ambient level detection

・

Averaged A/D value is converted to Ambient level corresponding to Gain control and sensor type.

Ambient level is judged to rank of 16 steps by ambient data.

The type of ambient light sensor can be chosen by register.

(Linear type sensor / Logarithm type sensor)

Register : STYPE

“0” : For Linear sensor

“1” : For Log sensor

・

Ambient level is output through I²C.

Register : AMB(3:0)

STYPE

0

1

xx

-

GAIN(1:0)

00

10

01

11

-

Gain

Status

Low

High

Low

High

Ambient

level

SSENS voltage

VoS×0／256

VoS×17／256

VoS×18／256

VoS×26／256

VoS×27／256

VoS×36／256

VoS×37／256

VoS×47／256

VoS×48／256

VoS×59／256

VoS×60／256

VoS×71／256

VoS×72／256

VoS×83／256

VoS×84／256

VoS×95／256

VoS×96／256

VoS×107／256

VoS×108／256

VoS×119／256

VoS×120／256

VoS×131／256

VoS×132／256

VoS×143／256

VoS×144／256

VoS×155／256

VoS×156／256

VoS×168／256

VoS×169／256

VoS×181／256

VoS×182／256

VoS×255／256

0h

1h

2h

3h

4h

5h

6h

7h

8h

9h

Ah

Bh

Ch

Dh

Eh

Fh

VoS×0／256

VoS×1／256

VoS×2／256

VoS×0／256

VoS×1／256

VoS×2／256

VoS×0／256

VoS×1／256

VoS×2／256

VoS×3／256

VoS×4／256

VoS×5／256

VoS×7／256

VoS×8／256

VoS×3／256

VoS×4／256

VoS×5／256

VoS×7／256

VoS×8／256

VoS×3／256

VoS×4／256

VoS×5／256

VoS×6／256

VoS×7／256

VoS×0／256

VoS×1／256

VoS×0／256

VoS×1／256

VoS×12／256

VoS×13／256

VoS×21／256

VoS×22／256

VoS×37／256

VoS×38／256

VoS×65／256

VoS×66／256

VoS×113／256

VoS×114／256

VoS×199／256

VoS×200／256

VoS×255／256

VoS×12／256

VoS×13／256

VoS×21／256

VoS×22／256

VoS×37／256

VoS×38／256

VoS×65／256

VoS×66／256

VoS×113／256

VoS×114／256

VoS×199／256

VoS×200／256

VoS×255／256

VoS×9／256

VoS×10／256

VoS×13／256

VoS×14／256

VoS×19／256

VoS×20／256

VoS×27／256

VoS×28／256

VoS×38／256

VoS×39／256

VoS×53／256

VoS×54／256

VoS×74／256

VoS×75／256

VoS×104／256

VoS×105／256

VoS×144／256

VoS×145／256

VoS×199／256

VoS×200／256

VoS×255／256

VoS×2／256

VoS×3／256

VoS×4／256

VoS×6／256

VoS×7／256

VoS×2／256

VoS×3／256

VoS×4／256

VoS×6／256

VoS×7／256

VoS×11／256

VoS×12／256

VoS×20／256

VoS×21／256

VoS×36／256

VoS×37／256

VoS×64／256

VoS×65／256

VoS×114／256

VoS×115／256

VoS×199／256

VoS×200／256

VoS×255／256

VoS×11／256

VoS×12／256

VoS×20／256

VoS×21／256

VoS×36／256

VoS×37／256

VoS×64／256

VoS×65／256

VoS×114／256

VoS×115／256

VoS×199／256

VoS×200／256

VoS×255／256



This is in case of not adjustments of the gain/offset control.

In the Auto Gain control mode, sensor gain changes in gray-colored ambient level.

“ ⁄ ” : This means that this zone is not outputted in this mode.

www.rohm.com

2011.04 - Rev.A

34/41

BD6095GUL,BD6095GU

Technical Note

(8) LED current assignment

・

LED current can be assigned as each of 16 steps of the ambient level.

Setting of a user can do by overwriting, though it prepares for the

table setup in advance.

Register : IU*(6:0)

Conversion table

can be changed

Ambient Level

Conversion Table (initial value)

Ambient

Level

Ambient

Level

Setting data

Current value

Setting data

Current value

0h

1h

2h

3h

4h

5h

6h

7h

11h

13h

15h

18h

1Eh

25h

2Fh

3Bh

3.6mA

4.0mA

4.4mA

5.0mA

6.2mA

7.6mA

9.6mA

12.0mA

8h

9h

Ah

Bh

Ch

Dh

Eh

Fh

48h

56h

5Fh

63h

14.6mA

17.4mA

19.2mA

20.0mA

(9) Slope process

・

Slope process is given to LED current to dim naturally.

LED current changes in the 256Step gradation in sloping.

Current Data which is set

LED Current

Up(dark→bright),Down(bright→dark) LED current transition speed

are set individually.

Register : THL(3:0)

Register : TLH(3:0)

THL

(3:0)

・

Main LED current changes as follows at the time as the slope.

TLH (THL) is setup of time of the current step 2/256.

TLH(3:0)

Up/Down transition Speed

is set individually

TLH

time

Zoom

25.6mA

256

THL

=0.1mA

TLH(3:0)

time

www.rohm.com

2011.04 - Rev.A

35/41

BD6095GUL,BD6095GU

Technical Note

(10) LED current reset when mode change

・

When mode is changed (ALC↔Non ALC),

it can select the way to sloping.

Register : MDCIR

NonALC

mode

ALC

mode

NonALC

mode

IMLED(6:0)

“0” : LED current non-reset when mode change

“1” : LED current reset when mode change

IU*(6:0)

MDCIR= “0”

0mA

time

NonALC

mode

ALC

mode

NonALC

mode

IMLED(6:0)

IU*(6:0)

MDCIR= “1”

0mA

time

(11) Current adjustment

・

When it is permitted by the register setting, PWM drive by the external terminal (WPWMIN) is possible.

Register : WPWMEN

・

It is suitable for the intensity correction by external control,

because PWM based on Main LED current of register setup or ALC control.

WPWMIN

WPWMEN

Back light current

(External input)

0

1

L

H

L

ON

PWM input invalid

PWM input valid

Forced OFF

ON

H

Current ON is depending on “MLEDEN”.

M L E D E N

In te rn a l S o ft-S ta rt T im e

D C /D C

O u tp u t

in p u t

W P W M IN

W P W M E N

L E D C u rre n t

It c a n b e in p u tte d W P W M IN b e fo re M L E D E N = 1 .

It c a n b e s e t W P W M E N = 1 b e fo re M L E D E N = 1 .

P W M m o ve m e n t is e ffe c tive a t th e tim e L E D c u rre n t ris e u p .

P W M H ig h p u ls e w id th m u s t b e m o re th a n 8 0 µ s .

www.rohm.com

2011.04 - Rev.A

36/41

BD6095GUL,BD6095GU

Technical Note

6. The explanation of I/O

When the RESETB pin is Low, the input buffers (SDA and SCL) are disabling for the Low consumption power.

VBAT

VIO

RESETB=L, Output “H”

SCL

(SDA)

Level

Shift

EN

LOGIC

RESETB

7. The explanation of the start of LDO1~LDO2

It must start as follows.

VBAT

T_VBATON

T_VBATOFF

VIO

T_VIOON=min

0.1ms

T_VIOOFF=min

1ms

RESETB

T_RSTB=min

0.1ms

T_RST=min

0ms

LDO1EN or LDO2EN

T_RISE

=

max 1ms(TBD)

LDO1O or LDO2O

(LDO output)

VBAT ON (Enough rise up) → VIO ON (Enough rise up) → Reset release → LDO ON

(Register access acceptable)

LDO OFF → Reset → VIO OFF (Enough fall down) → VBAT OFF

8. The explanation of the terminal management of the function that isn’t used

Set up the terminal that isn't used as follows.

The LED terminal which isn't used : Short to ground

Don't do the control concerned with this terminal.

T1, T2 : Short to ground

T3, T4 : Open

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2011.04 - Rev.A

37/41

BD6095GUL,BD6095GU

Technical Note

●PCB pattern of the Power dissipation measuring board

1^stlayer(component)

2^ndlayer

3^rdlayer

4^thlayer

5^thlayer

6^thlayer

7^thlayer

8^thlayer(solder)

www.rohm.com

2011.04 - Rev.A

38/41

BD6095GUL,BD6095GU

Technical Note

●Notes for use

(1) Absolute Maximum Ratings

An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can

break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any

special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety

measures including the use of fuses, etc.

(2) Power supply and ground line

Design PCB pattern to provide low impedance for the wiring between the power supply and the ground lines. Pay

attention to the interference by common impedance of layout pattern when there are plural power supplies and ground

lines. Especially, when there are ground pattern for small signal and ground pattern for large current included the external

circuits, please separate each ground pattern. Furthermore, for all power supply pins to ICs, mount a capacitor between

the power supply and the ground pin. At the same time, in order to use a capacitor, thoroughly check to be sure the

characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low

temperature, thus determining the constant.

(3) Ground voltage

Make setting of the potential of the ground pin so that it will be maintained at the minimum in any operating state.

Furthermore, check to be sure no pins are at a potential lower than the ground voltage including an actual electric

transient.

(4) Short circuit between pins and erroneous mounting

In order to mount ICs on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous mounting can

break down the ICs. Furthermore, if a short circuit occurs due to foreign matters entering between pins or between the

pin and the power supply or the ground pin, the ICs can break down.

(5) Operation in strong electromagnetic field

Be noted that using ICs in the strong electromagnetic field can malfunction them.

(6) Input pins

In terms of the construction of IC, parasitic elements are inevitably formed in relation to potential. The operation of the

parasitic element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the

input pin. Therefore, pay thorough attention not to handle the input pins, such as to apply to the input pins a voltage lower

than the ground respectively, so that any parasitic element will operate. Furthermore, do not apply a voltage to the input

pins when no power supply voltage is applied to the IC. In addition, even if the power supply voltage is applied, apply to

the input pins a voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics.

(7) External capacitor

In order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a

degradation in the nominal capacitance due to DC bias and changes in the capacitance due to temperature, etc.

(8) Thermal shutdown circuit (TSD)

This LSI builds in a thermal shutdown (TSD) circuit. When junction temperatures become detection temperature or higher,

the thermal shutdown circuit operates and turns a switch OFF. The thermal shutdown circuit, which is aimed at isolating

the LSI from thermal runaway as much as possible, is not aimed at the protection or guarantee of the LSI. Therefore, do

not continuously use the LSI with this circuit operating or use the LSI assuming its operation.

(9) Thermal design

Perform thermal design in which there are adequate margins by taking into account the permissible dissipation (Pd) in

actual states of use.

(10) LDO

Use each output of LDO by the independence. Don’t use under the condition that each output is short-circuited because it

has the possibility that an operation becomes unstable.

(11) About the pin for the test, the un-use pin

Prevent a problem from being in the pin for the test and the un-use pin under the state of actual use. Please refer to a

function manual and an application notebook. And, as for the pin that doesn't specially have an explanation, ask our

company person in charge.

(12) About the rush current

For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal

powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power wiring, width

of ground wiring, and routing of wiring.

(13) About the function description or application note or more.

The function description and the application notebook are the design materials to design a set. So, the contents of the

materials aren't always guaranteed. Please design application by having fully examination and evaluation include the

external elements.

www.rohm.com

2011.04 - Rev.A

39/41

BD6095GUL,BD6095GU

Technical Note

●Power dissipation (On the ROHM’s standard board)

1.6

1500mW

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0

25

50

75

100

125

150

Ta（℃）

Information of the ROHM’s standard board

Material : glass-epoxy

Size :

Refer to after page.

www.rohm.com

2011.04 - Rev.A

40/41

BD6095GUL,BD6095GU

Technical Note

●Ordering part number

-

B D

6

0

9

5

G U

L

E

2

Part No.

6095

Package

GUL : VCSP50L3

GU : VCSP85H3

Packaging and forming specification

E2: Embossed tape and reel

VCSP50L3(BD6095GUL)

Tape

Embossed carrier tape

2500pcs

1PIN MARK

Quantity

E2

Direction

of feed

3.75 0.1

The direction is the 1pin of product is at the upper left when you hold

reel on the left hand and you pull out the tape on the right hand

S

(

)

0.08

S

φ

35- 0.25 0.05

A

0.05

A B

F

φ

(

0.15)INDEX POST

E

D

C

B

A

B

1

2 3 4 5 6

Direction of feed

1pin

0.625 0.1

P=0.5×5

Reel

Order quantity needs to be multiple of the minimum quantity.

(Unit : mm)

∗

VCSP85H3 (BD6095GU)

Tape

Embossed carrier tape

1PIN MARK

Quantity

2500pcs

E2

Direction

of feed

3.75 0.05

0.06

The direction is the 1pin of product is at the upper left when you hold

reel on the left hand and you pull out the tape on the right hand

(

)

S

φ

35- 0.3 0.05

A

0.05

A B

0.15)INDEX POST

F

φ

(

E

D

C

B

A

B

1

2 3 4 5 6

Direction of feed

1pin

0.625 0.05

P=0.5×5

Reel

Order quantity needs to be multiple of the minimum quantity.

(Unit : mm)

∗

www.rohm.com

2011.04 - Rev.A

41/41

Notice

N o t e s

No copying or reproduction of this document, in part or in whole, is permitted without the

consent of ROHM Co.,Ltd.

The content speciﬁed herein is subject to change for improvement without notice.

The content speciﬁed herein is for the purpose of introducing ROHM's products (hereinafter

"Products"). If you wish to use any such Product, please be sure to refer to the speciﬁcations,

which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein

illustrate the standard usage and operations of the Products. The peripheral conditions must

be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information speciﬁed in this document.

However, should you incur any damage arising from any inaccuracy or misprint of such

information, ROHM shall bear no responsibility for such damage.

The technical information speciﬁed herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or

implicitly, any license to use or exercise intellectual property or other rights held by ROHM and

other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the

use of such technical information.

The Products speciﬁed in this document are intended to be used with general-use electronic

equipment or devices (such as audio visual equipment, ofﬁce-automation equipment, commu-

nication devices, electronic appliances and amusement devices).

The Products speciﬁed in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a

Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard

against the possibility of physical injury, ﬁre or any other damage caused in the event of the

failure of any Product, such as derating, redundancy, ﬁre control and fail-safe designs. ROHM

shall bear no responsibility whatsoever for your use of any Product outside of the prescribed

scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or

system which requires an extremely high level of reliability the failure or malfunction of which

may result in a direct threat to human life or create a risk of human injury (such as a medical

instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-

controller or other safety device). ROHM shall bear no responsibility in any way for use of any

of the Products for the above special purposes. If a Product is intended to be used for any

such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology speciﬁed herein that may

be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to

obtain a license or permit under the Law.

Thank you for your accessing to ROHM product informations.

More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

www.rohm.com

R1120

A


型号：	BD6095GU
厂家：	ROHM
描述：	Mulitifunction Backlight LED Driver for Small LCD Panels (Charge Pump Type) Mulitifunction背光LED驱动器，用于小型液晶面板（电荷泵型）显示驱动器驱动程序和接口接口集成电路泵 CD
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