With 110VAC, 60Hz input:

R1

(in mW)

(in µF)

(in

Ω)

With 220VAC, 50Hz input:

R1

(in mW)

(in µF)

(in

Ω)

Raw DC Filter Capacitor, C2

The raw DC filter capacitor (C2) is normally an alu-

minum or tantalum electrolytic capacitor. C2 is ordinar-

ily 47µF when the MAX610/MAX612 are driven from the

110/220VAC power line. The half-wave MAX611

requires larger values for C2 since the output current is

supplied by C2 for one-half of each line cycle.

Reset Delay Capacitor

The reset delay capacitor, labeled C3 in Figure 9a, is

non-critical and is usually a low-cost ceramic capacitor.

Table 1. Design Formulas

Table 2. Component Manufacturers

AC-to-DC Regulator

(110/220VAC to 5.0VDC)

_______________________________________________________________________________________

9

Half wave—MAX611

4

MAX611 only

10

9

Full wave—MAX610, MAX612

3

Full wave—MAX610, MAX612

3

Half wave—MAX611

4

MAX610 and MAX612

8

FORMULA

3

COMMENTS

EXAMPLE IN

FIGURE No:

PART NO.

DESCRIPTION

ECQ-E2105KF

1µF, 250VDC metallized

polypropylene capacitor

MANU-

FACTURER

ECQ-E2155KF

1.5µF, 250VDC metallized

polypropylene capacitor

ECQ-E6105KF

1µF, 630VDC metallized

polypropylene capacitor

ECQ-E2275KF

2.7µF, 250VDC metallized

polypropylene capacitor

Aavid

5801B

Slip-on heatsink for 8-pin

plastic DIP

Panasonic

ECQ-E6155KF

1.5µF, 630VDC metallized

polypropylene capacitor

V

5 V

4%, V

rounded

OUT

SET

=±

g

VV

R

R

OUT

.

(

)

=+

13

1

2

3

IC

x

x V

x F

OUT MAX

RMS

IN

()

=

14

2

IC

x

x V

x F

OUT MAX

RMS

IN

()

=

12

2

I

V

R

CURRENT LIMIT

SENSE

.

=

06

C

I

VV

x

x F

OUT MAX

RMS

OUT

IN

1

42

(

)

()

=

−

C

I

VV

x

x F

OUT MAX

RMS

OUT

IN

1

22

(

)

()

=

−

Panasonic Industrial Company

Aavid Engineering, Inc.

Electronic Components Division

30 Cook Ct., Box 400

1600 McCandless Drive

Laconia, NH 03247

Milpitas, CA 95035

(603) 524-4443

(408) 946-4311

Time delay = C3 x 3

(in secs)

(in µF)