Technical Note

2/12

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2011.06 - Rev.B

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

BD1601MUV

●

Electrical Characteristics

Unless otherwise noted, Ta = +25℃, VBAT=3.6V

Parameter

Symbol

Limits

Units

Condition

Min.

Typ.

Max.

Overall

Input voltage range

2.7

3.6

5.5

V

VBAT terminal

Quiescent Current

-

0.1

1

μA

EN=0V

Current Consumption1

-

1.0

2.4

mA

x1.0 Mode, Except LED current

Current Consumption2

-

2.5

3.5

mA

x2.0 Mode, Except LED current

Charge Pump

Oscillator frequency

0.8

1.0

1.2

MHz

Current Source

LED maximum current

28.5

30

31.5

mA

LED current accuracy

-

-

5.0

%

When LED current 15.5mA setting

and LED terminal voltage 1.0V

LED current matching

(*1)

-

0.5

3.0

%

When LED current 15.5mA setting

and LED terminal voltage 1.0V

LED control voltage

-

0.2

0.25

V

minimum voltage

at LED1~LED4 pins

Logic control terminal

Low threshold voltage

-

-

0.4

V

High threshold voltage

1.4

-

-

V

High level Input current

-

0.1

2

μA

Low level Input current

-2

-0.1

-

μA

EN=0V

Minimum EN High time

50

-

-

nsec

Minimum EN Low time

0.05

-

100

μsec

EN Off Timeout

-

512

640

μsec

(*1) The following expression is used for calculation:

Imax= Current value in a channel with the maximum current value among all channels

Imin=Current value in a channel with the minimum current value among all channels