AP2014/A

Synchronous PWM Controller

Anachip Corp

www.anachip.com.tw

Rev. 1.2 Nov 29, 2005

3/12

Electrical Characteristics

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

FB Voltage

AP2014A

0.784

0.8

0.816

V

FB Voltage Line Regulation

5 < Vcc < 12

-

0.2

0.35

%

UVLO

4.0

4.2

4.4

V

Supply Ramping Up

-

0.25

-

V

3.1

3.3

3.5

V

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

Freq=200KHz,

-

7

10

mA

Freq=200KHz,

-

7

10

mA

SS=0V

-

3.3

6

mA

SS=0V

-

1

4.5

mA

Soft-Start Section

Charge Current

SS=0V

10

20

30

µA

Error Amp

FB Voltage Input Bias Current

SS=3V, FB=1V

-

-0.1

-

µA

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

Ramp-Amplitude Voltage

1.225

1.25

1.275

V

Output Drivers

Rise Time

-

50

100

ns

Fall Time

-

50

100

ns

Dead Band Time

50

150

250

ns

Max Duty Cycle

FB=1V, Freq=200KHz

85

90

95

%

Min Duty Cycle

FB=1.5V

0

0

-

%