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V48B24C250B DC-DC Converter

Rev. 2

Page 3 of 8

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Parameter

Min

Typ

Max

Unit

Notes

PRIMARY SIDE

(PC = Primary Control; PR = Parallel)

PC bias voltage

5.50

5.75

6.10

Vdc

PC current = 1.0 mA

current limit

1.5

2.1

3.0

mA

PC voltage = 5.5V

PC module disable

2.3

2.3

2.6

Vdc

Must be able to sink

≥4 mA. See Fig. 1

PC module enable delay

4

7

ms

PC module alarm

0.5

Vavg

UV, OV, OT, module fault. See Figs. 2 and 4

PR emitter amplitude

5.7

5.9

6.1

Volts

PR load >30 ohms, < 30 pF

PR emitter current

150

mA

PR receiver impedance

375

500

625

ohms

25°C

PR receiver threshold

2.4

2.5

2.6

Volts

Minimum pulse width: 20ns

PR drive capability

12

modules

Without PR buffer amplifier

SECONDARY SIDE

(SC = Secondary Control)

SC bandgap voltage

1.21

1.23

1.25

Vdc

Referenced to –Sense

SC resistance

990

1000

1010

ohms

SC capacitance

0.033

µF

SC module alarm

0

Vdc

With open trim; referenced to –Sense. See Fig. 6

Parameter

Min

Typ

Max

Unit

Notes

Remote sense (total drop)

0.5

Vdc

0.25V per leg (senses must be closed)

Isolation voltage (in to out)

2000

Vrms

Complies with reinforced insulation requirements

Isolation voltage (in to base)

1550

Vrms

Complies with basic insulation requirements

Isolation voltage (out to base)

500

Vrms

Complies with operational insulation requirements

Isolation resistance (in to out)

10

megohms

Weight

3.7 (104)

4 (112)

ounces (grams)

Temperature limiting

100

115

°C

See Figs. 2 and 4

Agency approvals

cULus, TÜV, CE

UL60950, EN60950, CSA60950, IEC 60950.

With a fuse in series with the +Input

MODULE CONTROL SPECIFICATIONS

MODULE GENERAL SPECIFICATIONS

ELECTRICAL CHARACTERISTICS, continued

Note: The cover is electrically conductive and may be electrically connected to the baseplate.