51494

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 5

www.unisonic.com.tw

QW-R103-005.Ba

PIN ASSIGNMENT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

EA1+

EA1-

EA0

RT

GND

C1

GND

C2

P.G.

EA2-

EA2+

PIN

NAME

FUNCTION

1

EA1+

Error amplifier noninverting input, same as pin 1 of 494

2

EA1-

Error amplifier inverting input, same as pin 2 of 494

3

EA0

Error amplifier output and feedback, same as pin 3 of 494

4

Dead time control input, same as pin 4 of 494

5

Connect capacitor to oscillator circuit for operating frequency, same as pin 5 of 494

6

Connect resistor to oscillator circuit for operating frequency, same as pin 6 of 494

7

GND

Ground terminal of IC, same as pin 7 of 494

8

C1

Collector of output transistor one, same as pin 8 of 494

9

GND

Ground terminal of IC

10

Terminal for capacitor to determine power good delay time

11

C2

Collector of output transistor two, same as pin 11 of 494

12

Supply voltage, same as pin 12 of 494

13

P.G.

Output for power good signal

14

Reference voltage output, same as pin 14 of 494

15

EA2-

Error amplifier inverting input, same as pin 15 of 494

16

EA+

Error amplifier noninverting input, same as pin 16 of 494