UC3842G

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

3 of 7

www.unisonic.com.tw

QW-R103-036.E



PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage (Low Impedance Source)

30

V

Self Limiting

V

Output Current (Peak)

±1

A

Output Energy (Capacity load)

5

μJ

Junction Temperature

+150

C

Operating Temperature

-40 ~ +125

°C

Storage Temperature

-65 ~ +150

C

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

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



ELECT RI CAL CH ARACT ERI ST I CS

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP

MAX UNIT

STANDBY SECTION

Reduce Frequency Point of Standby Mode

Right load

2.2

V

REFERENCE SECTION

Reference Output Voltage

4.95

5.0

5.05

V

Line Regulation

12V

3

20

mV

Load Regulation

8

25

mV

Output Short Circuit Current

-30

-65

-180

mA

OSCILLATOR SECTION

Initial Accuracy

f

47

52

57

kHz

Frequency Change

0.2

1.0

％

1.6

V

1.2

V

Oscillator Voltage

2.8

V

ERROR AMPLIFIER SECTION

Input Voltage

2.42

2.50

2.58

V

Input Bias Current

-0.3

-2

μA

AVOL

2V

60

90

dB

Unity Gain Bandwidth

0.7

1

MHz

PSRR

12V

60

70

dB

Output Sink Current

2

4

mA

Output Source Current

-0.5

1

mA

5.0

5.6

V

0.8

1.1

V

CURRENT SENSE SECTION

Gain

(Note2,3)

2.85

3

3.15

V/V

Maximum Input Signal

0.9

1

1.1

V

PSRR

12V

70

dB

Input Bias Current

-2

-10

μA

Delay to Output

150

300

nS