4/13

Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.4 Sep.27, 2019

AX2012



ELECTRICAL CHARACTERUSTICS

(VCC=5V, IOUT = 20mA, TA = 25°C, unless otherwise noted)

Characteristics

Symbol

Conditions

Min Typ Max Units

Input Voltage Range

VCC

2.5

-

5.5

V

Step-Up Voltage Range

VOUT

3

-

27

V

OV Sense Voltage

VOV

27.5 29 30.5

V

Under Voltage Lockout

UVLO Rising

-

2.25 2.45

V

UVLO Hysteresis

-

100

-

mV

Feedback Voltage

VFB

285 300 315 mV

EN Threshold

Logic-High Voltage

VIH

1.4

-

-

V

Logic-Low Voltage

VIL

-

-

0.4

V

EN Hysteresis

-

200

-

mV

Operating Quiescent Current

ICCQ IOUT= 0mA, VFB =0.5V

-

170

-

μA

Shutdown Current

ISD

VEN=0V, tEN > 20ms

-

-

1

μA

N-Channel MOSFET Current Limit

(Note1)

ILIM

Duty=50%

-

1.9

-

A

MOSFET On-Resistance (Note1)

RDS(on)

VCC=3V, ISW=1A

-

0.6

-

Ω

VCC=5V, ISW=1A

-

0.45

-

Maximum Duty Cycle

DMAX

85

90

-

%

Line Regulation

VCC = 3V to 5V

-

1

-

%

Switching Frequency

FOSC

0.9 1.2 1.5 MHz

Dimming Clock Rate

FDIM

0.2

-

200 KHz

FB Input Leakage Current

IFB-LKG VFB = 0.5V

-

0.01 100

nA

SW Leakage Current

ISWL

Vsw = 27V, VFB =0.5V

-

-

1

µA

EN Input Leakage Current

IEN-LKG1 VEN= VCC

-

1.5

3

μA

IEN-LKG2 VEN= GND

-

0.01 0.1

μA

Shutdown Delay

TSHDN

-

10

-

mS

Thermal Shutdown

TSD

-

150

-

°C

Thermal Shutdown Hysteresis

TSH

-

30

-

Note1: Guaranteed by design.