IMS15 datasheet(6/19 Pages) BEL

6 / 19 page

IMX15, IMY15 , IMS15 Series Data Sheet

15 Watt DC-DC Converters

BCD20008-G Rev AE, 25-Aug-2017

Page 6 of 19

MELCHER

The Power Partners.

Table 2b: Input Data of IMS15 models; general conditions as in table 2a

Input

24IMS

48IMS

Unit

Characteristics

Conditions

min

typ

max

min

typ

max

Input voltage range1

TA min – TA max

Vi nom

Nominal input voltage

Io = 0 – Io nom

Vi sur

Repetitive surge voltage

Abs. max input (3 s)

100

tstartup

Converter

Switch on

Worst case condition at

0.25

0.5

0.25

0.5

start-up time 2

SD high

Vi min, Io = Io nom

0.1

trise

Rise time 2

Vi nom, resistive load

Io nom, capac. load

Ii o

No-load input current

Io = 0, Vi min – Vi max

Iirr

Reflected ripple current

Io = 0 – Io nom

mApp

Iinr p

Inrush peak current 3

Vi = Vi nom

4.5

C i

Input capacitance

for surge calculation

µF

VS–D–

Shut-down voltage

Converter disabled

–10 to 0.7

Converter operating

open or 2 – 20

RS–D–

Shut-down input resistance

approx. 10

Ω

IS–D–

Input current, when

Vi min – Vi max

1.2

disabled

SD connected to Vi–

Switching frequency

Vi min – Vi max,

approx. 300

kHz

Io = 0 – Io nom

Vi RFI

Input RFI level conducted

EN 55022 4

If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased.

Measured with resistive and max. admissible capacitive load.

Source impedance according to ETS 300132-2, version 4.3.

Measured with a ceramic capacitor Ci directly across input; output lead length 0.1 m, leads twisted. Double-output models with both

outputs in parallel. Ci is specified in table 11.

Input undervoltage lockout at typ. 80% of Vi min.

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