PKM4318GEPI datasheet(8/37 Pages) ERICSSON

Part #	PKM4318GEPI

Description	36-75 Vdc DC/DC converter Output up to 20 A/50 W

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Manufacturer	ERICSSON [Ericsson]

Direct Link	http://www.ericsson.com

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EN/LZT 146 051 R7A © Ericsson Power Modules, February 2007

PKM 4000E PI Datasheet

Characteristics

Conditions

Output

Unit

min

typ

max

VOi

Output voltage initial setting

and accuracy

IOmax, VI = 53 V, TPcb = 25 ˚C

1 .175

1 .2

1 .225

V

Output adjust range

IOmax, VI = 53 V, TPcb = 25 ˚C

1 .08

1 .32

V

VO

Output voltage tolerance band

IO = (0.1...1.0) x IOmax

1 .165

1 .235

V

Idling voltage

IO = 0

1 .175

1 .225

V

Line regulation

IOmax

5

mV

Load regulation

IO = (0 .01 . . .1 .0) × IOmax, VI = 53 V

5

mV

Vtr

Load transient

voltage deviation

IO = (0 .1 . . .1 .0) × IOmax, VI = 53 V,

load step = 0 .5 × IOmax

±100

mV

ttr

Load transient recovery time

IO = (0 .1 . . .1 .0) × IOmax, VI = 53 V,

load step = 0 .5 × IOmax

100

µs

tr

Ramp-up time

IO = (0 .1 . . .1 .0) × IOmax, VI = 53 V

(0 .1 . . .0 .9) × VOnom

6

10

ms

ts

Start-up time

IO = (0 .1 . . .1 .0) × IOmax, VI = 53 V

VI connection to 0 .9 x VOnom

9

15

ms

IO

Output current

0

20

A

POmax

Max output power

At VO = VOnom

24

W

Ilim

Current limit threshold

TPcb < TPcbmax

26

A

Isc

Short circuit current

TPcb = 25 °C, VO < 0 .5V

30

A

VOac

Output ripple & noise

See ripple and noise, IOmax, VOnom,

35

60

mVp-p

SVR

Supply voltage rejection (ac)

TPcb = 25 °C, f = 100 Hz sinewave , 1 Vpp,

VI = 53 V

67

dB

OVP

Over voltage protection

VI = 53 V IO = (0.1...1.0) × IOmax

1 .5

2 .5

V

TPcb = -40 . . .+90 ºC and VI = 36…75V, sense pins connected to output pins unless otherwise specified .

Miscellaneous

Characteristics

Conditions

min

typ

max

Unit

η

Efficiency - 50% load

TPcb = +25 °C, VI = 48 V, IO = 0.5 x IOmax

84 .5

%

η

Efficiency - 100% load

TPcb = +25 °C, VI = 48 V, IO = IOmax

83

%

η

Efficiency - 50% load

TPcb = +25 °C, VI = 53 V, IO = 0.5 x IOmax

84

%

η

Efficiency - 100% load

TPcb = +25 °C, VI = 53 V, IO = IOmax

81

84

%

Pd

Power Dissipation

IOmax, VI = 53 V, TPcb = 25 ˚C

5

W

fs

Switching frequency

180

kHz

PKM 1LE PI Output

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