BD2802 데이터 시트보기 (PDF) - ROHM Semiconductor

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BD2802

System LED Drivers for Mobile phones 6LEDs Illumination

ROHM Semiconductor 

BD2802GU

Technical Note

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

Parameter

Symbol

Min.

Limits

Typ.

Unit

Max.

Condition

【Circuit Current】

VBAT Circuit current 1

IBAT1

-

0.1

3.0

μA RESETB=0V, VIO =0V

VBAT Circuit current 2

IBAT2

-

0.5

3.0

μA RESETB=0V, VIO=1.8V

VBAT Circuit current 3

IBAT3

-

LED 6Ch ON, ILED=10mA setting

0.8

1.2

mA Exclusive of LED current,

RGBISET =120kΩ

【LED Driver】

LED current Step

ILEDSTP

128

step RGB1 group, RGB2 group

LED Maximum setup

curren

IMAX

-

LED current accurate

ILED

18

-

30.48

mA

20

22

mA

LED current Matching ILEDMT

-

5

10

%

LED OFF Leak current

ILKL

-

-

1.0

【OSC】

OSC oscillation frequency fosc

0.8

1.0

1.2

【SDA, SCL】(I2C interface )

L level input voltage

VILI

-0.3

-

0.25×VIO

H level input voltage

VIHI 0.75×VIO

-

VBAT+0.3

Hysteresis of Schmitt

trigger input

VhysI 0.05×VIO

-

-

L level output voltage

VOLI

0

-

0.3

Input current

linI

-10

-

10

【RESETB】(CMOS input pin)

L level input voltage

VILR

-0.3

-

0.25×VIO

H level input voltage

VIHR 0.75×VIO

-

VBAT+0.3

Input current

IinR

-10

-

10

【ADDSEL】(CMOS input pin)

L level input voltage

VILADD -0.3

-

0.25×VBAT

H level input voltage

VIHADD 0.7 ×VBAT

-

VBAT+0.3

Input current

IinADD

-10

-

10

【RGB1CNT, RGB2CNT】(CMOS input pin with Pull-down resistance)

L level input voltage

VILCNT -0.3

-

0.25×VIO

H level input voltage

VIHCNT 0.75×VIO

-

VBAT+0.3

Input current

IinCNT

-

3.6

10

【CLKIO(Output)】(CMOS output pin)

L level output voltage

VOLCLK

-

-

0.2

H level output voltage VOHCLK VIO-0.2

-

-

Output frequency

fclk

200

250

300

【CLKIO (Input)】(CMOS input pin)

L level input voltage

VILCLK -0.3

-

0.25×VIO

H level input voltage

VIHCLK 0.75×VIO

-

VIO+0.3

Input current

IinCLK

-

3.6

10

μA

MHz

V

V

V

V

μA

V

V

μA

V

V

μA

V

V

μA

V

V

kHz

V

V

μA

RGB1 group, RGB2 group

RGBISET=100kΩ

RGB1 group, RGB2 group,

Terminal voltage =1V

ILED=20mA setting, RGBISET

=120kΩ

RGB1 group, between RGB2 group,

Terminal voltage =1V

ILED=20mA setting

SDA pin, IOL=3 mA

Input voltage = 0.1×VIO～0.9×VIO

Input voltage = 0.1×VIO～0.9×VIO

Input voltage = 0.1×VBAT～0.9×VBAT

Input voltage = 1.8V

IOL=1mA

IOH=1mA

Input voltage = 1.8V

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2011.04 - Rev.A

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