UC3842AL-S08-R datasheet(3/9 Pages) ETL

No. de pieza	UC3842AL-S08-R

Descripción Electrónicos	CURRENT MODE PWM CONTROL CIRCUITS

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3 / 9 page

UC3842A/3843A

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 9

www.unisonic.com.tw

QW-R103-002.G

ABSOLUTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage(Low Impedance Source)

VCC

30

V

Supply Voltage(ICC<30mA)

VCC

Self Limiting

V

Analog Inputs (Pin 2,3)

VI(ANA)

-0.3 ~ +6.3

V

Output Current (Peak )

IO(PEAK)

±1

A

Error Amplifier Output Sink Current

ISINK(EA)

10

mA

Output Energy (Capacity Load)

5

μJ

Power Dissipation( TA≦25℃)

DIP-8

PD

1250

mW

SOP-8

800

Derated at TA>25℃

8

mW/℃

Junction Temperature

TJ

+150

℃

Storage Temperature

TSTG

-65 ~ +150

℃

Note Absolute maximum ratings are those values beyond which the device which the device could be permanently

damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS

(0℃≦TA≦70℃, VCC=15V, RT=10kΩ, CT=3.3nF, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REFERENCE SECTION

Output Voltage

VREF

TJ=25℃,IOUT=1mA

4.9

5

5.1

V

Line Regulation

ΔVREF

12≦VIN25V

6

20

mV

Load Regulation

ΔVREF

1≦IOUT=20mA

6

25

mV

Temperature Stability

(Note 1)

0.2

0.4

mV/℃

Total Output Variation

Line, Load, Temp (Note 1)

4.82

5.18

V

Output Noise Voltage

VOSC

10Hz≦f≦10kHz,TJ=25℃ (Note 1)

50

μV

Long Term Stability

TA=25℃,1000Hrs (Note 1)

5

25

mV

Output Short Circuit

ISC

-30

-100

-180

mA

OSCILLATOR SECTION

Initial Accuracy

f

TJ=25℃

47

52

57

kHz

Voltage Stability

Δf/ΔVCC

12≦VCC≦25V

0.2

1

%

Temperature Stability

TMIN≦TA≦TMAX (Note 1)

5

%

Amplitude

VOSC

VPIN4 peak to peak

1.7

V

ERROR AMPLIFIER SECTION

Input Voltage

VI(EA)

VPIN1=2.5V

2.42

2.50

2.58

V

Input Bias Current

II(BIAS)

-0.3

-2

μA

AVOL

2V ≦VOUT≦4V

60

90

dB

Unity Gain Bandwidth

TJ=25℃ (Note 1)

0.7

1

MHz

PSRR

I2≦VCC≦25V

60

70

dB

Output Sink Current

IO(SINK)

VPIN2=2.7V,VPIN1=1.1V

2

6

mA

Output Source Current

IO(SOURCE) VPIN2=2.3V,VPIN1=5V

-0.5

-0.8

mA

VOUT High

VOH

VPIN2=2.3V, RL=15kΩ to GND

5

6

V

VOUT Low

VOL

VPIN2=2.7V,VPIN1=1.1V

0.7

1.1

V

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