L3080

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R125-043.a



PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

40

V

Drain Voltage of the Internal Power Switch

SW

40

V

CS

-6.0

V

Logic Level Dimming Input

DIM

-0.3 ~ 6

V

Switch Output Current

1

A

Power Dissipation

0.8

W

Operation Junction Temperature Range

-40 ~ +150

°C

Storage Temperature

-55 ~ +150

°C

Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2. Human body model, 100pF capacitor discharged through a 1.5kΩ resistor.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

160

°C/W



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Input Voltage

5

30

V

Under Voltage Lock Out

4.7

V

UVLO Hysteresis

100

mV

CURRENT SENSE

Mean Current Sense Threshold Voltage

100

mV

Sense Threshold Hysteresis

±15

%

OPERATING FREQUENCY

Maximum Operation Frequency

1

MHz

OPERATING CURRENT

Quiescent Supply Current with Output Off

60

μA

DIM INPUT

Internal Supply Voltage

DIM Floating

5

V

DIM Input Voltage High

2.5

V

DIM Input Voltage Low

0.1

V

DIM Pull Up Resistor to Internal Supply Voltage

150

KΩ

DIM BRIGHTNESS DIMMER

DC Brightness Control Range

0.5

2.5

V

Duty Cycle Range of Low Frequency Dimming

3000:1

Duty Cycle Range of High Frequency Dimming

10:1

OUTPUT POWER SWITCH

SW On Resistance

0.6

Ω

Continuous SW Current

0.8

A

SW Leakage Current

0.5

5

µA

THERMAL SHUTDOWN

Thermal Shutdown Threshold

150

°C

Thermal Shutdown hysteresis

20

°C

Notes: 1. Typical parameters are measured at 25˚C and represent the parametric norm.

2. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.