28VDC INPUT (18-36 VDC)
12 VDC @ 12.5A OUTPUT (-150)
20A OUTPUT (-200)
Designed for Vehicle, Airborne
and other rugged environment
applications
FEATURES MODEL SELECTION
• Industry Standard Half-
brick Package
• High Efficiency
• Constant Frequency
• Clamp Over-Voltage
Protection
• Remote Sense
• Trim Range: -40 to +10%
• Encapsulated
• High Power Density:
up to 54 W/cu.in.
• Low Noise
• -40 to +100°C Operation
• 105°C Over Temperature
Protection
• Choice of On/Off Logic
• UL/CSA/TUV & CE Compliant
• Threaded Mounting Holes
Model Input Output Output
Number Voltage Voltage Current
(Vdc) (Vdc) (A)
SV28-12-200-1 18-36 12 20
SV28-12-150-1 18-36 12 12.5
DESCRIPTION
The SuperVerter series modules are high-density DC-DC converters designed for use in
military and industrial applications such as on board vehicle and avionics electronic
equipment. These are high power 28V input, 12V output, half brick modules that use
insulated metal substrates, planar transformers, surface mount construction and thermally
conductive potting to produce up to 240W of low noise, 12V output power.
150W and 240W DC-DC CONVERTERS
MODELS: SV28-12-150/200
TM
Astrodyne Corporation PH: 800-823-8082 FX: 508-339-0375 Email: sales@astrodyne.com
www.astrodyne.com www.roassoc.com
SUPERVERTERTM DC-DC Converters
SV28-12-150/200
ABSOLUTE MAXIMUM RATINGS
SNOITIDNOC STINU XAM NIM RETEMARAP suounitnoC cdV 04 )nI– ot nI+( egatloV tupnI
Transient Input Voltage (+In to –In) 50 Vdc 100 msec. max.
cdV 0051 noitalosI esaC /tupnI cdV 005 noitalosI esaC /tuptuO cdV 0051 noitalosI tuptuO /tupnI C° 011+ 04- erutarepmeT egarotS
Operating Temperature -40 +100 °C Baseplate
Soldering Temperature (Wave Solder) 260 °C < 5 sec.
Soldering Temperature (Hand Solder) 390 °C < 7 sec.
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS MIN TYP MAX UNITS CONDITIONS
cdV 63 82 81 egatloV tupnI
Maximum Input Current
SV28-12-150
SV28-12-200
10.6
15.8
A
Full load (See input characteristic
curve)
A 1 tneisnarT hsurnI 2sec
Input Reflected Ripple Current 5 mAp-p 5Hz to 20MHz, 12µH source impedance
Input Ripple Rejection 60 dB @120 Hz
OUTPUT PARAMETERS MIN TYP MAX UNITS CONDITIONS
Voltage Set Point 11.78 12.00 12.22 Vdc 28 Vin, 25°C, full load
daol lluf ot A 3.0 % 2.0 50.0 noitalugeR daoL V revO % 1.0 10.0 noitalugeR eniL in range
Voltage Drift w/Temperature 50 150 mV -40 to +100 °C
% 5.1 noitalugeR latoT 05 elppiR 200 mV rms
mV p-p 5 Hz to 20 MHz, ripple may exceed
spec below minimum load
Rated Output Current
SV28-12-150
SV28-12-200
0.3
0.3
12.5
20
A
A
At Iout < Iout(min), the output ripple
may exceed the specification. All other
aspects of the unit will function properly
at no load.
Exceeding absolute maximum ratings may cause permanent damage or reduce reliability.
Electrical specifications apply over the entire range of input voltage, output current, and temperature unless indicated.
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
Astrodyne Corporation
35 Hampden Rd www.astrodyne.com
SUPERVERTERTM DC-DC Converters
SV28-12-150/200
ELECTRICAL SPECIFICATIONS (continued)
Current Limit Inception
SV28-12-150
SV28-12-200
14.4
23.0
16.3
25.0
A
A
Vout = 90% Vout nominal
Short Circuit Current 170 % F.L. Vout = 250 mV
Switching Frequency 370 kHz
Transient Response Peak
Deviation (0.1A/µsec slew rate) 2 % Vout Load change from 50% to 75% or 50%
to 25% full load
Transient Response Settling Time
(0.1 A/µsec slew rate) 300 µsec Vin = 28 V, Tcase = 25 °C, Vout within
1% Vout nominal
Efficiency
SV28-12-150
SV28-12-200
84
84
86
86
%
%
Vin = 28 V, full load, Tcase = 70 °C
External Load Capacitance 0 5,000 µF Electrolytic Capacitor
ISOLATION PARAMETERS MIN TYP MAX UNITS CONDITIONS
Input-to-Output Capacitance 2000 pF
Input-to-Output Resistance 10 M Ohms
FEATURE PARAMETERS MIN TYP MAX UNITS CONDITIONS
tuoV% 011 06 egnaR mirT
Remote Sense Compensation 1.2 Vdc
Over Voltage Clamp (Non-
Shutdown, Auto. Recovery) 13.2 16 Vdc
Over Temperature Shut-down +105 °C V ,daol %08 cesm 53 02 emiT nO-nruT out within 1% of steady
state
* ffO/nO cigoL Logic Low Von/off 0 1.2 V @ Ion/off = 1mA
Ion/off 1.0 mA @ Von/off = 0V
Logic High: Von/off 15 V @ Ion/off = 1mA
Ion/off 50 µA @ Von/off = 15V
* Negative logic on/off is standard, positive logic is optional (delete the “-1” suffix from model number for positive
logic). With negative logic, logic low turns module on, logic high turns it off. The reverse is true for positive logic.
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
Astrodyne Corporation
35 Hampden Rd www.astrodyne.com
TM retrevnoC CD-CD
SV28-12-150/200
MECHANICAL SPECIFICATIONS
MECHANICAL PARAMETERS MIN TYP MAX UNITS CONDITIONS
).zo( g )2.4( 811 thgieW gniwarD eniltuO eeS sehcnI 82.2 x 4.2 x 5.0 eziS
Thermal Resistance, Case-to-
Ambient 6.6 °C/W Tcase = 100 °C
TRIM CIRCUIT CONFIGURATIONS OUTLINE DRAWING
Rtrim-up
+Ou
t
+Sense
Trim
-Sense
-Ou
t
Load
Trim Up
Rtrim-dn
+Ou
t
+Sense
Trim
-Sense
-Ou
t
Load
Trim Down
0.515 ± 0.020
[13.08 ± 0.5]
x.xxx in. ± 0.010 in.
[x.xx mm. ± 0.25 mm.]
0.20 MIN
[5.1 MIN]
TOLERANCES:
0.40
[10.2]
ALUMINUM HEATSINK SURFACE
0.47
[11.9]
x.xx in. ± 0.02 in.
[x.x mm. ± 0.5 mm.]
0.040 [1.02] Ø PIN
FUSED TIN
OVER COPPER
7 PL
0.20
[5.1]
2.00
[50.8]
2.40
[61.0]
+IN
ON/
OFF
CASE
-IN
T
+OUT
+S
-OUT
-S
1.90
[48.3]
0.19
[4.8]
2.28
[57.9]
DIMENSIONS: INCHES
[MILLIMETERS]
0.080 [2.03] Ø PIN
FUSED TIN
OVER COPPER
2 PL
0.224 Ø MAX
[5.69 Ø MAX]
MOUNTING
INSERTS
M3 x 0.5 THRU
4 PL
[7.62]
0.400
[10.16]
[7.62]
0.300
0.300
[10.16]
0.400
[7.6]
0.30
TRIM RESISTOR CALCULATIONS
( ) ( )
kohms
2100
2251
Δ
Ruptrim
∆
∆×+
−
∆×
+×
=
−%%
%. %10012
kohms 2
%
Rdowntrim
−
∆
=
−
100
0) ( Change VoltageOutput Desired >
∆
=∆%%
ouptrim VIncrease to ValueResistor External =
−
R
odowntrim VDecrease to ValueResistor External =
−
R
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
Astrodyne Corporation
35 Hampden Rd www.astrodyne.com
