Rev.03.08.07

bxa40s

3 of 4

Embedded Power for

Business-Critical Continuity

Specifications Contd.

Notes

1

Nominal line, at no load.

2

Low line to high line at full load.

3

Full load to no-load at nominal line.

4

For conducted noise operation of the BXA40 to VDE0871, VDE0878 and

EN55022 level B, see BXA40 Design Note 101.

5

Reverse voltage protection can be implemented by putting a slow blow fuse on

the positive input rail. Rate the fuse at 200 Vdc,1.5 A for 48 Vdc inputs and 100

V, 4.5 A for 24 Vdc input units.

6

The maximum operating ambient temperature, without derating depends on

internal power dissipation and hence efficiency and cooling method. Download

BXA40 Design Note 101 which provides detailed thermal calculations and

design-in hints from the Artesyn website.

7

Do not exceed a dv/dt rate of 100 V per second at the trim pin input if output

current is less than 0.4% lo max.

8

Remote sense is offered as standard on the 2.9 V and 3.3 V products. The

BXA40-24S05J and BXA40-48S05J come with remote sense as an option.

Remote sense design is designated by the suffix ‘-S’ e.g. BXA40-48S05-SMJ (for

units with metric inserts), BXA40-48S05-SJ (for units with imperial inserts). For

models without remote sense option, pin 5 and pin 6 are absent.

9

Overvoltage protection is 118% on 3.3 V output model.

10 For 2.9 V output, no short circuit protection above 90

11 Transient response, 25% to 100% load, 10% for 2.9 V and 3.3 V models.

12 Units with the suffix ‘-M’ at the end of the model number are offered as

standard with metric threaded inserts (M3). To order units with imperial

threaded inserts (4-40 UNC) please remove the suffix ‘-M’ from the model

number. These inserts are used for bolting the unit to a PCB and/or fixing

heatsinks.

13 An external filter capacitor is necessary for safe operation of the 24 V input

models. It is also suggested that an external filter capacitor be used on the 48 V

input models. A 4 μF (or greater) film capacitor such as: ITW Paktron Capstick

series, part number 405K100CS4 4 μF/100 V is recommended, if filtering is not

used. See BXA40 Design Note 101.

14 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.

TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special

request, please contact your local sales representative for details.

15 NOTICE: Some models do not support all options. Please contact your local

Artesyn representative or use the on-line model number search tool at

http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative.

INPUT

OUTPUT

OUTPUT

INPUT

TYPICAL

REGULATION

MODEL

VOLTAGE

VOLTAGE

CURRENT (MAX.)

EFFICIENCY

18-36 Vdc

3.3 V

7 A

70 mA

75%

0.3%

1.0%

18-36 Vdc

5 V

8 A

40 mA

81%

0.3%

1.0%

36-75 Vdc

2.9 V

6.9 A

40 mA

77%

0.3%

1.0%

36-75 Vdc

5 V

8.0 A

30 mA

82%

0.3%

1.0%

36-75 Vdc

12 V

3.3 A

30 mA

87%

0.3%

1.0%

BXA40-48S12-MJ

PIN CONNECTIONS

PIN NUMBER

SINGLE OUTPUT

1

+ Input

2

– Input

3

Control

4

No Connection

5

6

7+ Output

8

Common

9Trim

10K

Ω

TRIMPOT

TRIM

DOWN

TRIM

UP

7

9

8

7

9

8

RT1

OR

RT2

EXTERNAL OUTPUT TRIMMING

Output can be externally trimmed

by ±10% using either method shown below.