P

AC

MAINS

N

LOAD

C1

T1

L1

R1

A

B

R4

C3

D1

5

6

7

8

4

3

2

1

C5

C4

ON

OSC

CAP SYNC

+

LS7339

FIGURE 5. A TYPICAL AUTO SHUT-OFF AC POWER SWITCH

G

MT2

MT1

Z1

-

R5

C7

R8

C6

SEE

NOTE 1

SEE

NOTE 2

R7

R6

R2

R3

C2

ON

OFF

S1

-

+

115VAC

220VAC

115VAC

220VAC

(1)(3) R1 150

Ω, 1W

360

Ω, 2W

(1)(2)C3

100µF

100µF

(2)(4) R1 82

Ω

82

Ω

(3)(4)C3

47µF

47µF

R2 1.5M

Ω

1.5M

Ω

C4

470pF

470pF

R3 100k

Ω

100k

Ω

C5

0.047µF

0.047µF

R4 100k

Ω

100k

Ω

C6

(6)

(6)

R5 100

Ω

100

Ω

C7

0.1µF, 200V 0.1µF, 400V

R6 (5)(6)

(5)(6)

Z1

15V, 1/2W

15V, 1/2W

R7 (5)(6)

(5)(6)

D1

1N4148

1N4148

R8 1.8k

Ω, 1W

1.8k

Ω, 2W

L1

100µH

200µH

C1 0.15µF, 200V 0.15µF, 400V

(7)T1

Q4008L4

Q5004L4

(1) C2 1.0µF, 200V

0.47µF, 400V

(2) C2 0.47µF, 200V

0.22µF, 400V

(3) C2 0.33µF, 200V

0.22µF, 400V

(4) C2 0.22µF, 200V

0.1µF, 400V

(1) LS7339, Connection A

(2) LS7339, Connection B

(3) LS7340, Connection A

(4) LS7340, Connection B

(5) 100k

Ω ≤ (R6 + R7) ≤10MΩ

(6) (R6 + R7)C6

≥ 5ms

(7) Typical

All Resistors 1/4W, all Capacitors 25V unless otherwise specified

NOTES:

1. Use Connection A when Neutral is not available. Use Connection B when Neutral is available.

2. Snubber Network C7, R8 may be required for some inductive loads.

3. See Table 2 for Component Functional Description.

7339-060201-4