PKF4621 datasheet(7/24 Pages) ERICSSON

Part #	PKF4621

Description	3-7 W DC/DC Power Modules 48 V Input Series

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Manufacturer	ERICSSON [Ericsson]

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7

EN/LZT 146 33 R1A (Replaces EN/LZT 137 09 R7) © Ericsson Microelectronics AB, June 2000

PKF 4510

0

1.5

A

Characteristics

Conditions

Output 1

min

typ

max

Unit

Output voltage initial

setting and accuracy

VOi

Output voltage

tolerance band

VO

Idling voltage

IO = 0 A

Load regulation

IO = 0.1 …1.0 × IOmax, VI = 53 V

ttr

Load transient voltage

Vtr

Temperature coefficient2)

Tcoeff

Ramp-up time

tr

Start-up time

ts

Output current

IO

Max output power2)

POmax

Current limiting

threshold

Ilim

TP <TP max, VO = 2.5 V

Short circuit current

Isc

VO = 0.2 …0.5 V, TA =+25°C

20 Hz …5 MHz

Line regulation

IO =IOmax

Load transient

recovery time

3.28

3.30

3.32

V

3.65

4.0

V

mV

70

220

mV

+150

mV

– 250

mV

IO = IO max, TP = + 40…+90 ºC

–1.1

mV/°C

0.3

ms

3ms

5W

1.65

3.30

A

2.4

A

30

70

mVp-p

80

dB

mV

120

ms

0.6…50 MHz

V

Long term drift

included

3.17

3.50

3.17

3.42

IO = 0.1 …1.0 × IOmax

IO = 0.3…1.0 × IOmax

VI = 38…60 V

VI = 50…72 V

10

25

Output adjust range1)

2.80

3.80

V

IO = 0.1 …1.0 × IO max, VI = 53 V

load step = 0.5 × IO max

VOac

Output ripple & noise

60

dB

1) See also Operating Information.

2) See Typical Characteristics.

TP = +25°C, IO = 1.5 A, VI = 53 V

IO = IOmax, 0.1 …0.9 × VO, VI = 53 V

IO = 0.1…1.0

´ IOmax, VI = 53 V

From VI connection to VO = 0.9 × VOi

IO = IO max

f = 100 Hz sine wave, 1 Vp-p, VI = 53 V

(SVR = 20 log (1 Vp-p/VOp-p))

SVR

Supply voltage rejection (ac)

TP = – 30 …+ 85°C, VI = 38 ... 72 V and pin 8 connected to pin 9 unless otherwise specified.

Output

1.3

1.7

Characteristics

Conditions

Unit

min

typ

max

Pd

Power dissipation

Miscellaneous

%

Efficiency

h

IO = IO max

75

79

VI = 53 V

VI = 67 V

VI = 53 V

VI = 67 V

75

79

1.3

1.7

W

Calculated value

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