VIB0003TFJ

Rev. 1.2

9/2009

Page 3 of 16

V•I CHIP INC. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200

vicorpower.com

PRELIMINARY DATASHEET

ATTRIBUTE

SYMBOL

CONDITIONS / NOTES

MIN

TYP

MAX

UNIT

Voltage range

330

352

365

Vdc

dV/dt

1

V/µs

Quiescent power

PC connected to -IN

395

410

mW

No load power dissipation

6.5

9.5

W

12

Inrush Current Peak

2

4.5

A

DC Input Current

1

A

K Factor

K

1/8

Output Power (Average)

325

W

305

Output Power (Peak)

495

W

Output Voltage

Section 3.0 No load

41.25

45.63

V

Output Current (Average)

Pout < = 325 W

7.7

A

Efficiency (Ambient)

η

94.4

95.7

%

94.4

Efficiency (Hot)

η

94.3

95.3

%

Minimum Efficiency

η

90

%

(Over Load Range)

Output Resistance (Ambient)

100

140

180

m

Ω

Output Resistance (Hot)

150

190

230

m

Ω

Output Resistance (Cold)

60

115

180

m

Ω

Load Capacitance

100

uF

Switching Frequency

1.56

1.65

1.73

MHz

Ripple Frequency

3.12

3.3

3.46

MHz

Output Voltage Ripple

192

400

mV

Section 8.0

460

540

620

ms

PC

PC Voltage (Operating)

4.7

5

5.3

V

PC Voltage (Enable)

2

2.5

3

V

PC Voltage (Disable)

<2

V

PC Source Current (Startup)

50

100

300

uA

PC Source Current (Operating)

2

3.5

5

mA

PC Internal Resistance

Internal pull down resistor

50

150

400

k

Ω

PC Capacitance (Internal)

Section 5.0

1000

pF

PC Capacitance (External)

External capacitance delays PC enable time

1000

pF

External PC Resistance

50

k

Ω

PC External Toggle Rate

1

Hz

Ton2

50

100

150

µs

4

10

µs

1.0 ELECTRICAL CHARACTERISTICS

Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the