24IMS 查看數據表（PDF） - Bel Fuse Inc.
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24IMS Datasheet PDF : 19 Pages
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IMX15, IMY15, IMS15 Series Data Sheet
15 Watt DC-DC Converters
Electrical Input Data
General conditions:
– TA = 25 °C, unless TC is specified.
– Shut-down pin left open-circuit.
– Trim or R input left open-circuit.
Table 2a: Input data of IMX15 and IMY15 models
Input
Characteristics
Vi
Input voltage range 1
Vi nom Nominal input voltage
Vi sur
Repetitive surge voltage
t startup
Converter
Switch on
start-up time 2 SD high
t rise
Rise time 2
Ii o
No-load input current
Iirr
Reflected ripple current
Iinr p
Inrush peak current 3
Ci
Input capacitance
VS–D–
Shut-down voltage
RS–D–
I
––
SD
fs
Vi RFI
Shut-down input resistance
Input current, when
disabled
Switching frequency
Input RFI level conducted
Conditions
TA min – TA max
Io = 0 – Io nom
Abs. max input (3 s)
Worst case condition at
Vi min, Io = Io nom
Vi nom, resistive load
Io nom, capac. load
Io = 0, Vi min – Vi max
Io = 0 – Io nom
Vi = Vi nom
for surge calculation
Converter disabled
Converter operating
Vi min – Vi max
SD connected to Vi–
Vi min – Vi max,
Io = 0 – Io nom
EN 55032 4
20IMX
40IMX
110IMY
min typ max min typ max min typ max
9 5, 7
36 16.8 5, 6
75 50 5
150 8
20
40
110
40
100
168
0.25 0.5
0.25 0.5
0.5 0.8
0.1
0.1
0.1
5
5
5
10 20
10 20
10 20
65
45
15
30
30
20
8
9
10
1.5
0.75
0.35
–10 to 0.7
–10 to 0.7
–10 to 0.7
open or 2 – 20 open or 2 – 20
open or 2 – 20
approx. 10
approx. 10
approx. 10
10
3
1
Unit
V
s
ms
mA
mApp
A
µF
V
kΩ
mA
approx. 300
approx. 300
approx. 300
kHz
A
A
A
1 If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased.
2 Measured with resistive and max. admissible capacitive load. Valid for models with rev. AI or greater.
3 Source impedance according to ETS 300132-2, version 4.3.
4 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.
5 Input undervoltage lockout at typ. 80% of Vi min.
6 Short time operation down to Vi min >14.4 V possible. Po reduced to approx. 85% of Po nom.
7 Initial start-up at Vi = 9 V, main output voltage regulation down to 8.4 V
8 Short time operation up to 154 V possible for 2 s.
BCD20008-G Rev AE, 25-Aug-2017
MELCHER
The Power Partners.
Page 5 of 19
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