UC3842A/3843A

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 9

www.unisonic.com.tw

QW-R103-002.F

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage(Low Impedance Source)

30

V

Self Limiting

V

Analog Inputs(pin 2,3)

-0.3 ~ +6.3

V

Output Current ( Peak )

±1

A

Error Amplifier Output Sink Current

10

mA

Output Energy (capacity Load)

5

μJ

DIP-8

1.0

W

Power Dissipation( Ta≦25

°C)

SOP-8

0.5

W

Derated at Ta>25

°C

8

mW/

°C

Junction Temperature

+150

°C

Storage Temperature

-65 ~ +150

°C

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

°C≦Ta≦70°C, V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Section

Output Voltage

4.9

5

5.1

V

Line Regulation

ΔV

REF

6

20

mV

Load Regulation

ΔV

REF

6

25

mV

Temperature Stability

(Note 1)

0.2

0.4

mV/

°C

Total Output Variation

Line, Load, Temp(Note 1)

4.82

5.18

V

Output Noise Voltage

50

μV

Long Term Stability

Ta=25

°C,1000Hrs(Note 1)

5

25

mV

Output Short Circuit

-30

-100

-180

mA

Oscillator Section

Initial Accuracy

f

47

52

57

kHz

Voltage Stability

Δf/ΔVcc

0.2

1

%

Temperature Stability

5

%

Amplitude

Vosc

Vpin 4 peak to peak

1.7

V

Error Amplifier Section

Input Voltage

Vpin 1=2.5V

2.42

2.50

2.58

V

Input Bias Current

-0.3

-2

μA

AVOL

60

90

dB

Unity Gain Bandwidth

0.7

1

MHz

PSRR

60

70

dB

Output Sink Current

Vpin 2=2.7V,Vpin 1=1.1V

2

6

mA

Output Source Current

Vpin 2=2.3V,Vpin 1=5V

-0.5

-0.8

mA

5

6

V

Vpin 2=2.7V,Vpin 1=1.1V

0.7

1.1

V