AP1509 datasheet(3/6 Pages) TGS

3 / 6 page

AP1509

3/6

ABSOLUTE MAXI MUM RATINGS

Characteristics

Symbol

Value

Unit

Supply Voltage

VCC

+40

ON/OFF pin input voltage

VSD

-0.3~+18

Feedback pin voltage

VFB

-0.3~+18

Output voltage to ground

VOUT

-1

Power dissipation

Internally limited

Storage temperature

Tstg

-65~+150

°C

Operating temperature

Topr

-40~+125*

°C

Operating voltage

VOP

+4.5~+22

ELECTRI CAL CH ARACTERISTICS

(Refer to the test circuit, VIN=12V for 3.3V,5V,adjustable version and VIN=18V for the 12V

version,ILOAD=0.5A)

Characteristics

Symbol

Test Conditions

Min

Typ

Max

Unit

Feedback bias current

IFB

VFB=1.3V

(Adjustable version only)

-10

-50

-100

Oscillator frequency

Fosc

127

150

173

KHz

110

173

Saturation voltage

VSAT

IOUT=2A

No outside circuit

VFB=0V force driver on

1.25

1.4

1.5

Max.duty cycle(ON)

VFB=0V force driver on

100

Min. duty cycle(OFF)

VFB=12V force driver off

Current limit

ICL

Peak current

No outside circuit

VFB=0V force driver on

Output leakage current

(output=0)

No outside circuit

VFB=12V force driver off

-200

μA

Output leakage current

(output=-1)

VIN=36V

-5

Quiescent current

VFB=12V force driver off

Standby

quiescent

current

ISTBY

ON/OFF pin=5V

VIN=36V

150

μA

200

ON/OFF

logic

input

threshold

voltage

VIL

Low(regulator ON)

1.3

0.6

VIH

High(regulator OFF)

2.0

ON/OFF

logic

input current

VLOGIC=2.5V(OFF)

μA

ON/OFF

input

current

VLOGIC=0.5V(ON)

0.01

Thermal resistance

ӨJC

Junction to case

°C/W

Thermal

resistance

with copper area of

approximately 3 in2

ӨJA

Junction to ambient

°C/W

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