M54134

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 7

www.unisonic.com.tw

QW-R122-001.c

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PIN CONFIGURATION

1

GND

2

3

4

OFFC

5

TRC1

6

TRC2

7

DLYC

8

SCRT

15 OPI+

14 C1

13 OPI-

12 C2

11 OPAO

10 ILKI

9

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PIN DESCRIPTION

PIN NO.

PIN NAME

DESCRIPTION

1

GND

Grounding

2

Pin for connecting resistor that sets constant current for internal circuits; approx. 1.3 V.

3

Output pin of the internal constant-voltage circuit. Connect decoupling capacitor.

4

OFFC

Leakage input signal does not continue.

Leakage is detected and SCR turn on.

In these cases, this IC will be restored to the initial condition after a predetermined time.

Connect capacitor that determines restore time.

5

TRC1

Pin for connecting capacitor that integrates signal output from discriminator of

leak-signal input level.

6

TRC2

Pin for connecting capacitor to eliminate noise.

7

DLYC

Pin for connecting capacitor that sets delay time in case of using delay function.

8

SCRT

Output pin for driving a SCR.

9

Pin for providing input reference level of leakage detection. About 2.4V appears.

10

ILKI

Other input pin of leakage detection.

11

OPAO

Output pin of operational amplifier.

12

C2

Pin for connecting capacitor that prevents abnormal oscillations. Connect capacitor

across IC at pins 11 and 12.

13

OPI-

Negative input pins of operational amplifier

14

C1

Pin for connecting capacitor that prevents noise from causing malfunction. Connect

capacitors across IC at pins 13 and 14 and across IC at pins 15 and 14.

15

OPI+

Positive input pins of operational amplifier

16

VS

Power supply