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V•I Chip Bus Converter Module

B352F110T30

Rev. 2.2

Page 3 of 12

V•I Chip Bus Converter Module

Parameter

Min

Typ

Max

Unit

Note

Output voltage

10.3

11.4

Vdc

No load

9.91

11.0

Vdc

Full load

Output power

0

300

W

Rated DC current

0

30.4

Adc

Peak repetitive power

450

W

Max pulse width 1ms, max duty cycle 10%,

baseline power 50%

Current share accuracy

5

10

%

See Parallel Operation on Page 11

Efficiency

Half load

93.5

95.8

%

See Figure 5

Full load

94.3

95.5

%

See Figure 5

Internal output inductance

1.1

nH

Internal output capacitance

31

µF

Effective value

Load capacitance

1,200

µF

Output overvoltage setpoint

11.4

Vdc

Output ripple voltage

No external bypass

200

400

mV p-p

See Figures 7 and 9

10 µF bypass capacitor

13

mV p-p

See Figure 8

Short circuit protection set point

38.0

Adc

Module will shut down

Average short circuit current

0.18

A

Effective switching frequency

3.3

3.4

3.5

MHz

Fixed, 1.7 MHz per phase

Line regulation

K

0.0309

1/32

0.0316

Load regulation

12.2

15.0

mΩ

Transient response

Voltage overshoot

115

mV

100% load step; See Figures 10 and 11

Response time

200

ns

See Figures 10 and 11

Recovery time

1

µs

See Figures 10 and 11

Output overshoot

Input turn-on

0

mV

No output filter; See Figure 3

PC enable

0

mV

No output filter; See Figure 2

Output turn-on delay

From application of power

750

ms

No output filter; See Figure 3

From release of PC pin

160

ms

No output filter

Output (Conditions are at 352 Vin, full load, and 25°C ambient unless otherwise specified)

Efficiency vs. Output Power

82

84

86

88

90

92

94

96

98

0

30

60

90

120

150

180

210

240

270

300

Output Power (W)

Figure 5 — Efficiency vs. output power at 352 Vin

Power Dissipation

2

4

6

8

10

12

14

16

0

30

60

90

120

150

180

210

240

270

300

Output Power (W)

Figure 6 — Power dissipation as a function of output power

Output Waveforms