IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
CISPR 22/EN 55022, Level B Radiated
Product Specifications
Aug 2002
07114
Electromagnetic emission requirements according to
EN 55022, class B (radiated) can be achieved by adding an
external common mode choke and (for 20 IMX 35 types) an
L
V+
Vi+
additional capacitor, see: Input Data. The filter components
should be placed as close as possible to the input of the
converter.
Module
Vi–
V–
Table 13: Input filter components for EN 55022, level B,
radiated.
Type
Current compensated choke
Fig. 18
20 IMX 35
40 IMX 35
70 IMX 35
110 IMX 35
Murata PLH1OA series 7003R6P02
Murata PLH1OA series 1612R1P02
Murata PLH1OA series 2911R2P02
Murata PLH1OA series 3711R0P02
Example for external circuitry to comply with CISPR22/EN
55022, level B, radiated
Immunity to Environmental Conditions
Table 14: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
-8 3
Characteristics
Conditions
Operational 2
min
–40
–40
–55
max
852
Unit
°C
TA
TC
TS
Ambient temperature 1
Case temperature
Storage temperature 1
110
110
Non operational
1 MIL-STD-810D section 501.2 and 502.2
2 See: Thermal Considerations
3 Start up at –55°C
Table 15: MTBF and device hours
MTBF (Standard)
Ground Benign
Ground Fixed
Ground Mobile
40 IMX 35 (MIL-HDBK-217F)
110 IMX 35 (Bellcore)
336,000 hrs (TC = 40°C) 141,000 (TC = 40°C) 86,000 (TC = 70°C) 110,000 (TC = 50°C)
1,372,000 hrs @ 25°C at 100% load
Table 16: Environmental testing
Test Method
Standard
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
Test Conditions
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
Temperature:
40 2 °C
%
56 days
Unit not
operating
93 +2/-3
Shock
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-27
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
100 gn = 981 m/s2
6 ms
18 (3 each direction)
Unit
operating
Bump
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-29
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
40 gn = 392 m/s2
6 ms
6000 (1000 each direction)
Unit
operating
Vibration
IEC/EN/DIN EN 60068-2-6
Acceleration amplitude:
0.35 mm (10...60 Hz)
Unit
(sinusoidal)
5 gn = 49 m/s2 (60...2000 Hz) operating
10...2000 Hz
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Fh
Kb
Vibration
broad-band
random
IEC/EN 60068-2-64
MIL-STD-810D section 514.3 Frequency band:
Acceleration magnitude:
Acceleration spectral density: 0.05 gn2/Hz
Unit
operating
20...500 Hz
4.9 gn rms
(digital control)
Test duration:
3 h (1 h each axis)
Salt mist, cyclic
(sodium chloride
NaCl solution)
IEC/EN/DIN IEC 60068-2-52 Concentration:
5% (30°C)
Unit not
operating
Duration:
Storage:
Storage duration:
Number of cycles:
2 h per cycle
40°C, 93% rel. humidity
22 h per cycle
3
AUG 13, 2002
Rev 1.0
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