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V•I Chip Bus Converter Module

B048F060T24

Rev. 2.6

Page 3 of 12

V•I Chip Bus Converter Module

Parameter

Min

Typ

Max

Unit

Note

Output voltage

4.75

6.87

Vdc

No load

4.47

6.61

Vdc

Full load

Output power

0

240

W

0

206

W

Rated DC current

0

46.5

Adc

Peak repetitive power

360

W

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

baseline power 50%

Current share accuracy

5

10

%

See Parallel Operation on Page 10

Efficiency

Half load

94.8

95.6

%

See Figure 5

Full load

94.0

94.6

%

See Figure 5

Internal output inductance

1.1

nH

Internal output capacitance

35.6

µF

Effective value

Load capacitance

4,000

µF

Output overvoltage setpoint

6.9

Vdc

Module will shut down

Output ripple voltage

No external bypass

145

275

mVp-p

See Figures 7 and 9

10 µF bypass capacitor

13

mVp-p

See Figure 8

Short circuit protection set point

47.4

Adc

Module will shut down

Average short circuit current

1

A

Effective switching frequency

2.1

2.5

3.1

MHz

Fixed, 1.3 MHz per phase

Line regulation

K

0.1238

1/8

0.1263

Load regulation

6.0

7.09

m

Ω

Transient response

Voltage overshoot

180

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

290

ms

No output filter; See Figure 3

From release of PC pin

85

ms

No output filter

Efficiency vs. Output Power

86

88

90

92

94

96

0

24

48

72

96

120

144

168

192

216

240

Output Power (W)

Figure 5 — Efficiency vs. output power

Power Dissipation

2

4

6

8

10

12

14

0

24

48

72

96

120

144

168

192

216

240

Output Power (W)

Figure 6 — Power dissipation as a function of output power

Output Waveforms