AP2014NA datasheet(3/12 Pages) ANACHIP

Part #	AP2014NA

Description	Synchronous PWM Controller

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Manufacturer	ANACHIP [Anachip Corp]

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AP2014/A

Synchronous PWM Controller

Anachip Corp

www.anachip.com.tw

Rev. 1.2 Nov 29, 2005

3/12

Electrical Characteristics

Unless otherwise specified, these specifications apply over VCC=5V, VC=12V and TA=0 to 70°C. Typical values refer to TA =25°C. Low duty

cycle pulse testing is used which keeps junction and case temperatures equal to the ambient temperature.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Reference Voltage

AP2014

1.225

1.25

1.275

VFB

FB Voltage

AP2014A

0.784

0.8

0.816

V

LREG

FB Voltage Line Regulation

5 < Vcc < 12

-

0.2

0.35

%

UVLO

UVLO Threshold - VCC

4.0

4.2

4.4

V

UVLO VCC

UVLO Hysteresis - VCC

Supply Ramping Up

-

0.25

-

V

UVLO Threshold - VC

3.1

3.3

3.5

V

UVLO VC

UVLO Hysteresis - VC

Supply Ramping Up

-

0.2

-

V

FB Ramping Down

(AP2014)

0.4

0.6

0.8

V

UVLO Threshold - FB

FB Ramping Down

(AP2014A)

0.3

0.4

0.5

V

UVLO FB

UVLO Hysteresis - FB

-

0.1

-

V

Supply Current

Operation ICC VCC Operation Supply Current

Freq=200KHz,

CL=1500pF

-

7

10

mA

Operation IC

VC Operation Supply Current

Freq=200KHz,

CL=1500pF

-

7

10

mA

ICCQ

VCC Static Supply Current

SS=0V

-

3.3

6

mA

ICQ

VC Static Supply Current

SS=0V

-

1

4.5

mA

Soft-Start Section

SSIB

Charge Current

SS=0V

10

20

30

µA

Error Amp

IFB1

FB Voltage Input Bias Current

SS=3V, FB=1V

-

-0.1

-

µA

IFB2

FB Voltage Input Bias Current

SS=0V, FB=1V

-

-64

-

µA

gm

Transconductance

450

600

750

µmho

Oscillator

AP2014

170

200

230

KHz

Freq

Frequency

AP2014A

340

400

460

KHz

VRAMP

Ramp-Amplitude Voltage

1.225

1.25

1.275

V

Output Drivers

Tr

Rise Time

CL =1500pF

-

50

100

ns

Tf

Fall Time

CL =1500pF

-

50

100

ns

TDB

Dead Band Time

50

150

250

ns

TON

Max Duty Cycle

FB=1V, Freq=200KHz

85

90

95

%

TOFF

Min Duty Cycle

FB=1.5V

0

-

%

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