Model Selection Guide

Mechanical Dimensions

Mechanical Notes:

Notes:

1. When measuring output ripple, it is recommended that an external 0.47 µF

ceramic capacitor be placed from the +Vout pin to the -Vout pin for single

output units and from each output to common for dual output units. For

noise sensitive applications, the use of 3.3 µF capacitors will reduce the

output ripple.

2. Transient recovery is measured to within a 1% error band for a load step

change of 75% to 100%.

3. Operation at no-load will not damage these units. However, they may not

meet all specifications.

4. Dual output units may be connected to provide a 10 VDC,

24 VDC or 30 VDC output. To do this, connect the load across the positive

(+Vout) and negative (-Vout) outputs and float the output common.

5. The converter should be connected to a low ac-impedance source. An

input source with a highly inductive impedance may affect the stability of

the converter. In applications where the converter output loading is high

and input power is supplied over long lines, it may be necessary to use a

capacitor on the input to insure start-up.

In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz)

capacitor be mounted close to the converter. For 12V input units a 3.3 µF

is recommended and for 24V units a 2.2 µF.

6. It is recommended that a fuse be used on the input of a power supply for

protection. See the table above for the correct rating.

Model

Number

Input

Output

Efficiency

(%, Typ)

Fuse Rating

Slow-Blow

(mA)

Voltage (VDC)

Current (mA)

Reflected

Ripple

Current

(mA, Typ)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load

No-Load

A501ERW

12

9.0 - 18.0

429

20

25

3.3

1,200.0

60.0

77

1,500

A502ERW

12

9.0 - 18.0

514

20

25

5.0

1,000.0

50.0

81

1,500

A503ERW

12

9.0 - 18.0

595

20

25

12.0

500.0

25.0

84

1,500

A504ERW

12

9.0 - 18.0

595

20

25

±12.0

±250.0

±12.5

84

1,500

A505ERW

12

9.0 - 18.0

595

20

25

±15.0

±200.0

±10.0

84

1,500

A511ERW

24

18.0 - 36.0

209

5

15

3.3

1,200.0

60.0

79

700

A512ERW

24

18.0 - 36.0

251

5

15

5.0

1,000.0

50.0

83

700

A513ERW

24

18.0 - 36.0

291

5

15

12.0

500.0

25.0

86

700

A514ERW

24

18.0 - 36.0

291

5

15

±12.0

±250.0

±12.5

86

700

A515ERW

24

18.0 - 36.0

291

5

15

±15.0

±200.0

±10.0

86

700

MicroPower Direct

www.micropowerdirect.com

292 Page Street Ste D Stoughton, MA 02072

•

TEL: (781) 344-8226

•

FAX: (781) 344-8481

•

E-Mail: sales@micropowerdirect.com

Derating Curve

Pin

Single

Dual

2

-Vin

-Vin

3

-Vin

-Vin

9

No Pin

Common

11

NC

-Vout

14

+Vout

+Vout

16

-Vout

Common

22

+Vin

+Vin

23

+Vin

+Vin

NC: No Connection

Pin Connections

Single Output

µF Max

Dual Output

µF Max

6,800

±1,000

Capacitive Load