AC242A.F8A.G.LF.TR datasheet(3/8 Pages) ETC2

Part #	AC242A.F8A.G.LF.TR

Description	Current Mode PWM Contoller

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Power Management AAC242/243

-

Preliminary

-

October 2010

3 / 8

ELECTRICAL CHARACTERISTICS

Unless otherwise stated, T=25C, Vcc=15V, RT = 10KΩ, CT = 3300pF.

PARAMETER

PARAMETERS

UNITS

CONDITIONS

MIN.

TYP.

MAX.

REFERENCE SECTION

Output Voltage

4.95

5.00

5.05

V

Line Regulation

6

15

mV

12V<Vcc<25V

Load Regulation

3

25

mV

Temperature Stability

0.2

mV/°C

0C to 130C

Total Output Variation

4.9

5.1

V

Line, Load, and Temperature

Long Term Stability

5

mV

Ta=125°C for 1000 hours

Output Short Circuit Current

-30

-50

-60

mA

OSCILLATOR SECTION

Frequency Initial Accuracy

47

52

57

KHz

Ta=25°C

Frequency Change with Voltage

0.2

1

%

12<Vcc<25V

Frequency Change with Temp.

1

%

Tlow<Ta<Thigh

Oscillator Voltage Swing

1.65

Vpp

ERROR AMPLIFIER SECTION

Voltage Feedback Input

2.45

2.5

2.55

V

Vout=2.5V

Input Bias Current

-1

µA

Open Loop Voltage Gain

90

dB

Unity Gain Bandwidth

10

MHz

Tj=25°C

Power Supply Rejection Ratio

70

dB

12V<Vcc<25V

Output Current Sink

12

mA

Output Current Source

-1

mA

Output Voltage Swing High

6

V

Output Voltage Swing Low

0.8

V

PULSE WIDTH MODULATION SECTION

Maximum Duty Cycle

97

%

Minimum Duty Cycle

0.4

%

Before drop out

CURRENT SENSE SECTION

Voltage Gain

11.4

12.0

12.6

V

Maximum Input Signal

242

250

258

mV

Power Supply Rejection Ratio

70

dB

Input Bias Current

-10

µA

Time Delay to Output

300

nS

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