ENMODS™

Rev 3.3

vicorpower.com

Page 2 of 13

06/2017

800 927.9474

EN1xxx

Parameter

Min

Typ

Max

Unit

Notes

Operating input voltage

Low range

90

115

132

Autoranging (doubler mode)

High range

180

230

264

Autoranging (bridge mode)

Input undervoltage

90

Shutdown

AC line frequency

47

63

Hz

C-, and T-Grade

Power factor

0.68

0.72

Typical line

Inrush current

30

Amps

INPUT SPECIFICATIONS (see Figures 3 through 7 for operating characteristics)

Electrical Characteristics

Electrical characteristics apply over the full operating range of input voltage, output power and baseplate temperature, unless otherwise specified. All

temperatures refer to the operating temperature at the center of the baseplate. Performance specifications are based on the ENMod system as shown in

Figure 1a.

* Tracking error between BUS OK and Enable thresholds

Parameter

Min

Typ

Max

Unit

Notes

Output power

0

575

Watts

Efficiency

93

94

%

Full load

96

97

%

Full load

Output voltage

250

375

External hold-up capacitance

1,750

µF

2-3300µF in Series–HUB 3300S

OUTPUT SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

Notes

AC Bus OK (BOK)

Low state resistance

15

Ω

To negative output – Bus normal

Low state voltage

0.1

50mA maximum

High state voltage

14.8

15.0

15.2

BOK true threshold

235

240

245

Output Bus voltage

BOK false threshold

200

205

210

Output Bus voltage

Module Enable (EN)

Low state resistance

15

Ω

To negative output – Converters disabled

Low state voltage

0.1

50mA maximum

High state voltage

12

14

16

Enable threshold

235

240

Output bus voltage

Disable threshold

185

190

195

Output bus voltage

AC Bus OK - Module Enable,

12

14

16

AC Bus OK and Module Enable thresholds track

differential error*

CONTROL SPECIFICATIONS