［AP2152］

MS1348-E-00

5

2012/05

ELECTRICAL CHARACTERISTICS

Items marked by● are guaranteed by design in the range of -30℃ to +85℃.

Value

Parameter

Symbol

MIN

TYP

MAX

Unit

Condition

DC/DC Converter

Input voltage Range

●

4.25

35

V

Supply Current(SW ON)

5

10

mA

Standby Current

5.0

10

μA

After start up PWM =0V *1

UVLO Voltage

3.75

4.0

4.25

V

UVLO Hysteresis Width

0.2

V

1.86

2.0

2.14

MHz

●

1.80

2.0

2.17

MHz

1.21

1.3

1.39

MHz

Switching Frequency

●

1.18

1.3

1.42

MHz

LX On Resistance

400

800

mΩ

LX Off Leak Current

0.1

1.0

μA

Maximum On Duty

90

95

%

LX Minimum On Time

●

50

ns

COMP Output High Voltage

4.55

4.9

V

COMP Output Low Voltage

0.1

0.2

V

680

800

920

mV

Error Amp Reference Voltage

●

600

800

1000

mV

Current Sink Circuit and Dimming Part

LED Current Range

●

10

120

mA

73.15

75.8

78.46

mA

2

I

I

)

mA

(

I

MIN

)

3

1

(

CH

MAX

)

3

1

(

CH

TYP

_

LED

−

−

+

=

●

72.39

75.8

79.21

mA

2

I

I

)

mA

(

I

MIN

)

3

1

(

CH

MAX

)

3

1

(

CH

TYP

_

LED

−

−

+

=

28.8

30.0

31.2

mA

2

I

I

)

mA

(

I

MIN

)

3

1

(

CH

MAX

)

3

1

(

CH

TYP

_

LED

−

−

+

=

●

28.5

30.0

31.5

mA

2

I

I

)

mA

(

I

MIN

)

3

1

(

CH

MAX

)

3

1

(

CH

TYP

_

LED

−

−

+

=

LED Current

●

62.08

65.0

67.93

mA

2

I

I

)

mA

(

I

MIN

)

3

1

(

CH

MAX

)

3

1

(

CH

TYP

_

LED

−

−

+

=