PKF4628SI - 3-7 W DC/DC Power Modules 48 V Input Series - Ericsson

PKF4628SI 图片

The MacroDens
3–7W PKF 4000 I series true com
ponent level on-board DC/DC power modules are
intended as distributed power sources in decentralized
– 48V and –60V DC power systems. Utilization of
thick film technology and a high degree of silicon
integration has made it possible to achieve a MTBF o
more than 4.9 million hours.
The high reliability and the very low height of these
DC/DC power modules makes them particularly
suited for Information Technology and Telecom
(IT&T) applications, with board spacing down to 15
mm or 0.6 in. The over-moulded rugged design
makes them also suitable for other demanding
industrial applications. They are optimized for free

General

Absolute Maximum Ratings
                                                                                                                             Stress in excess of Absolute Maximum Rat-
  Characteristics                                                           min                   max          Unit
                                                                                                                             ings may cause permanent damage. Absolute
  TP          Pin temperature at full output power1)                       –45                   +95            °C           Maximum Ratings, sometimes referred to as
                                                                                                                             no destruction limits, are normally teste
  TS         Storage temperature                                           –55                   +125           °C           with one parameter at a time exceeding the
                                                                                                                             limits of Output data or Electrical Charac-
  VI         Continuous input voltage2)                                    – 0.5                 +75           V dc
                                                                                                                             teristics. If exposed to stress above these
  VISO        Isolation voltage                                            1,500                               V dc          limits, function and performance may de-
             (input to output test voltage)                                                                                  grade in an unspecified manner.

  W          Transient input energy3)                                                             0.1          Ws
    tr

  VRC         Remote control voltage pin 10, 11                             –5                   +40           V dc

  Vadj       Output adjust voltage pin 8, 9                                 –5                   +40           V dc

Input T   < T  max unless otherwise specified
            P       P
                                                                                                                             NOTES:
  Characteristics                           Conditions                      min        typ        max          Unit
                                                                                                                              1) TP, is defined as the maximum temperature
 VI          Input voltage range2) 4)                                       38                    72            V               on the connection pins at the PB (Printe
                                                                                                                                Board) solder joint, mounted on a
                                                                                                                                          2       2           2
 VIoff       Turn-off input voltage      (See typical characteristics)      30        34.5        36            V                5– 8 dm  (1 dm     =15.5 in ) multi-layer PB
                                                                                                                                (>4 layers), with 20 mm (0.8 in) board-pitch
 VIon        Turn-on input voltage       (See typical characteristics)                36.5        38            V               and free convection cooling. Corresponding
                                                                                                                                ambient temperature range (TA) at full output
  CI          Input capacitance                                                        1.4                      F               power is –45…+85°C.
                                                                                                                             2) The input voltage range 38…72 V dc meets
  P           Input idling power         I   =0,T = –30...+85°C         (VI = 53V)                130          mW               the European Telecom Standard prETS
   Ii                                    O       P                      (VI = 67 V)               170                             300 132-2 Nominal input voltage range in

                                                                                                                                48V and 60 Vdc power systems, –40.5…
                                         T   = –30...+85 °C,            (V = 53 V)     25
  PRC        Input stand-by power         P                               I                                    mW               –57.0V and –50.0...–72.0V respectively. At
                                         RC connected to pin 17         (V = 67 V)     30
                                                                          I                                                     input voltages exceeding 72V (abnormal