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SM Series (SMH100S)
Full Featured 28/270 Vdc Input
100 Watt Single Output

      SMH100 dc/dc converter

Download SMH100S data sheets

Features
No Derating From -55 to +100oC
Parallelable Operation
Synchronization.
Fixed Frequency Power Conversion.
MIL-STD-883C Screening Available.
Meets MIL-Standards: MIL-STD-454, P4855-1A, MIL-STD-704D, MIL-STD-810E, and MIL-S-901C.

 

 

How To Order
Series: SM
Case Size: H
Total Output Power: 100
Single Output: S
Output Voltage: 5.2
Options: -C
Input Voltage: 270 (or leave blank for 28 Vdc input)
MIL-STD-883 Screening (Optional) 883
Case Size: H designates the half size unit.
Omit the H for the larger case.
Options: A-   pins out baseplate of unit
C-   thru hole inserts (0.140 DIA)
I-    metric inserts (M3)
Standard unit is 28 Vdc nominal input with pins out the top written as: SMH100S/5.2.  A 270 Vdc input unit with pins out the baseplate and "883" screening would be written as: SMH100S/5.2-A (270) 883
 

 

 

Accessory Products
SM1275: Input Transient Suppression Module (for 28 Vdc input only) for conformance to MIL-STD-704A & MIL-STD-1275.
SMF200: EMI Filter to meet MIL-STD-461C.
SMR: AC Front End Recitier (for 270 Vdc input).


Selection Chart
Nominal Output (Vdc) Output Current (Amps) Model Number
2.0 20 SMH100S/2.0
3.3 20 SMH100S/3.3
5.0 20 SMH100S/5.0
5.2 19 SMH100S/5.2
12 8.3 SMH100S/12
15 6.7 SMH100S/15
24 4.2 SMH100S/24
28 3.6 SMH100S/28
48 2.0 SMH100S/48

 

 

Input Characteristics, 28 Vdc Input

Min Typ Max Units
Input Voltage 18 28 36 Vdc
Brown Out (75%) Full Load 17

Vdc
No Load Power Dissipation
2 3 Watt
Inrush Charge
2
mc
Reflected Ripple Current
15
%
Logic Disable Current (Sink)
1.0 1.5 mA
Logic Disable Power In
0.35 0.75 W
Input Ripple Rejection (120 Hz)
60
dB
Input Overvoltage (No Damage) 37
50 Vdc
Efficiency
70-75
%
Efficiency (2V & 3.3V)
50-60
%
EMI Units conform to MIL-STD-461C (on the input leads) with companion filter
Input Transient Units conform to MIL-STD-704D (50 Vdc for 0.1 second).  Up to 100 Vdc for 100ms per MIL-STD-1275A with companion transient suppression module.

 

 

Input Characteristics, 270 Vdc Input

Min Typ Max Units
Input Voltage 200 270 400 Vdc
Brown Out (75%) Full Load 175

Vdc
No Load Power Dissipation
10 15 Watt
Inrush Charge
1.5
mc
Reflected Ripple Current
15
%
Logic Disable Current (Sink)
0.8
mA
Logic Disable Power In
3.0
W
Input Ripple Rejection (120 Hz)
60
dB
Input Overvoltage (No Damage) 400
500 Vdc
Efficiency
70-75
%
Efficiency (2V & 3.3V)
50-60
%
EMI Units conform to MIL-STD-461C (on the input leads) with companion filter
Input Transient Units conform to MIL-STD-704D (500 Vdc for 0.1 second)

 

 

Output Characteristics

Min Typ Max Units
Set Point Accuracy

1* % Vout
Load Regulation
0.02 0.2 % Vout
Line Regulation
0.02 0.1 % Vout
Ripple P-P (25 MHz)
1.0 3.0 % Vout
Trim Range (5V, 5.2V min = 85%) 60
115 % Vout
Trim Range (2V, 3.3V) 100
115 % Vout
Remote Sense Compensation
0.5
Vdc
Overvoltage Protection 115
125 % Vout
Current Sharing
N/A

Transient Response (Vout 1%) Time / Overshoot
    20 - 80% Load
400 / 400
µS/mV
    Low Line - High Line
400 / 400
µS/mV
    50 - 100% Load
400 / 400
µS/mV
Temperature Drift
0.01 0.02 %/oC
Long Term Drift
0.01 0.02 %/1KHrs
Current Limit 105
150 % Iout
Short Circuit Current   180   % Iout
Turn On Time
25
mS
Logic Turn On Time
25
mS
* 1% or 50mV, whichever is greater

 

Isolation Characteristics

Min Typ Max Units
Isolation:  

 
  Input to Output
  (28 Vdc in)
500     Vdc
  Input to Output
  (270 Vdc in)
1000     Vdc
  Output to Base 500

Vdc
  Input to Base
  (28 Vdc in)
500

Vdc
  Input to Base
  (270 Vdc in)
1000

Vdc
Input to Output  
  Capacitance
0.01
0.03 µF
Insulation Resistance
  (@50 Vdc)
50

MOhm

 

 

Mechanical Characteristics
Weight 4.5 oz

130 grams
Size 2.4 x 2.3 x 0.5 inch

61 x 59 x 13 mm
Volume 2.76 inch3

47 cm3


Temperature Characteristics

Min Typ Max Units
Operating (Baseplate) -55
+100 oC
Storage (Ambient) -55
+125 oC
Over Temperature Shutdown
+105
oC
Thermal Resistance Case - Ambient
5
oC/W


MIL-STD-883 Screening (Optional)
Stabilization Bake: +125oC for 24 hours per M1108, Condition B
Temperature Cycling: 10 cycles at -55oC to +125oC (transition period 36 minutes) per M1010, Condition B
Burn-in: 160 hours at +100oC
Final Testing