TM
150W and 240W DC-DC CONVERTERS
MODELS:
SV28-24-150/200
28VDC INPUT (18-36 VDC)
24 VDC @ 6.3A OUTPUT (-150)
10A OUTPUT (-200)
Designed for Vehicle, Airborne
and other rugged environment
applications
MODEL SELECTION
•
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
Number
Input Output Output
Voltage Voltage Current
(Vdc)
SV28-24-200-1
SV28-24-150-1
18-36
18-36
(Vdc)
24
24
(A)
10
6.3
FEATURES
•
Industry Standard Half-
brick Package
•
High Efficiency
•
Constant Frequency
•
Clamp Over-Voltage
Protection
•
Remote Sense
•
Trim Range: -40 to +10%
•
Encapsulated
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, 24V 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, 24V output power.
Astrodyne Corporation
PH: 800-823-8082
FX: 508-339-0375
Email: sales@astrodyne.com
www.astrodyne.com
www.roassoc.com
SUPERVERTER
DC-DC Converters
TM
SV28-24-150/200
ABSOLUTE MAXIMUM RATINGS
Exceeding absolute maximum ratings may cause permanent damage or reduce reliability.
PARAMETER
Input Voltage (+In to –In)
Transient Input Voltage (+In to –In)
Input/ Case Isolation
Output/ Case Isolation
Input/ Output Isolation
Storage Temperature
Operating Temperature
Soldering Temperature (Wave Solder)
Soldering Temperature (Hand Solder)
MIN
MAX
40
50
1500
500
1500
+110
+100
260
390
UNITS
Vdc
Vdc
Vdc
Vdc
Vdc
°C
°C
°C
°C
CONDITIONS
Continuous
100 msec. max.
-40
-40
Baseplate
< 5 sec.
< 7 sec.
ELECTRICAL SPECIFICATIONS
Electrical specifications apply over the entire range of input voltage, output current, and temperature unless indicated.
INPUT PARAMETERS
Input Voltage
Maximum Input Current
SV28-24-150
SV28-24-200
Inrush Transient
Input Reflected Ripple Current
Input Ripple Rejection
OUTPUT PARAMETERS
Voltage Set Point
Load Regulation
Line Regulation
Voltage Drift w/Temperature
Total Regulation
Ripple
Rated Output Current
SV28-24-150
SV28-24-200
MIN
18
TYP
28
MAX
36
10.6
15.8
1
UNITS
Vdc
A
A
2
sec
mAp-p
dB
UNITS
Vdc
%
%
mV
%
mV rms
mV p-p
A
A
CONDITIONS
Full load (See input characteristic
curve)
5
60
MIN
23.52
TYP
24.00
0.05
0.01
120
MAX
24.48
0.2
0.2
240
1.5
60
400
6.3
10
5Hz to 20MHz, 12µH source impedance
@120 Hz
CONDITIONS
28 Vin, 25°C, full load
0.3 A to full load
Over Vin range
-40 to +100 °C
5 Hz to 20 MHz, ripple may exceed
spec below minimum load
At Iout < Iout(min), the output ripple
may exceed the specification. All other
aspects of the unit will function properly
at no load.
0.3
0.3
Astrodyne Corporation
35 Hampden Rd
www.astrodyne.com
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
SUPERVERTER
DC-DC Converters
TM
SV28-24-150/200
ELECTRICAL SPECIFICATIONS (continued)
Current Limit Inception
SV28-24-150
SV28-24-200
Short Circuit Current
Switching Frequency
Transient Response Peak
Deviation (0.1A/µsec slew rate)
Transient Response Settling Time
(0.1 A/µsec slew rate)
Efficiency
SV28-24-150
SV28-24-200
External Load Capacitance
ISOLATION PARAMETERS
Input-to-Output Capacitance
Input-to-Output Resistance
FEATURE PARAMETERS
Trim Range
Remote Sense Compensation
Over Voltage Clamp (Non-
Shutdown, Auto. Recovery)
Over Temperature Shut-down
Turn-On Time
85
85
0
MIN
10
MIN
60
26.4
+105
20
TYP
MAX
110
1.2
31.2
TYP
2000
370
2
300
7.25
11.5
7.9
12.5
170
A
A
% F.L.
kHz
% Vout
µsec
Vout = 90% Vout nominal
Vout = 250 mV
Load change from 50% to 75% or 50%
to 25% full load
Vin = 28 V, Tcase = 25 °C, Vout within
1% Vout nominal
Vin = 28 V, full load, Tcase = 70 °C
Electrolytic Capacitor
CONDITIONS
87
87
5,000
MAX
%
%
µF
UNITS
pF
M Ohms
UNITS
%Vout
Vdc
Vdc
°C
msec
CONDITIONS
35
80% load, Vout within 1% of steady
state
Logic On/Off *
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.
Astrodyne Corporation
35 Hampden Rd
www.astrodyne.com
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
TM
SV28-24-150/200
DC-DC Converter
MECHANICAL SPECIFICATIONS
MECHANICAL PARAMETERS
Weight
Size
Thermal Resistance, Case-to-
Ambient
MIN
TYP
MAX
UNITS
g (oz.)
Inches
°C/W
CONDITIONS
See Outline Drawing
Tcase = 100 °C
118 (4.2)
0.5 x 2.4 x 2.28
6.6
TRIM CIRCUIT CONFIGURATIONS
+Out
+Out
OUTLINE DRAWING
DIMENSIONS:
INCHES
[MILLIMETERS]
+Sense
Trim
Load
+Sense
Trim
R
trim-dn
2.28
[57.9]
R
trim-up
Load
0.19
[4.8]
1.90
[48.3]
0.224 Ø MAX
[5.69 Ø MAX]
MOUNTING
INSERTS
M3 x 0.5 THRU
4 PL
0.30
[7.6]
0.400
[10.16]
0.300
[7.62]
0.300
[7.62]
0.400
[10.16]
-Sense
-Sense
2.40
[61.0]
2.00
[50.8]
ON/
OFF
-Out
-Out
0.20
[5.1]
-IN
-OUT
CASE
-S
T
+S
Trim Up
Trim Down
+IN
+OUT
TRIM RESISTOR CALCULATIONS
R
trim
−
up
24
×
(
100
+
Δ
%
) (
100
+
2
× ∆
%
)
kohms
=
−
1.225
× ∆
%
∆
%
100
−
2 kohms
∆
%
0.040 [1.02] Ø PIN
FUSED TIN
OVER COPPER
7 PL
0.080 [2.03] Ø PIN
FUSED TIN
OVER COPPER
2 PL
0.47
[11.9]
R
trim
−
down
=
0.40
[10.2]
0.20 MIN
[5.1 MIN]
0.515 ± 0.020
[13.08 ± 0.5]
ALUMINUM HEATSINK SURFACE
∆
%
=
Desired Output Voltage Change (
∆
%
>
0)
R
trim
−
up
=
External Resistor Value to Increase V
o
TOLERANCES:
x.xx in. ± 0.02 in.
[x.x mm. ± 0.5 mm.]
x.xxx in. ± 0.010 in.
[x.xx mm. ± 0.25 mm.]
R
trim
−
down
=
External Resistor Value to Decrease V
o
Astrodyne Corporation
35 Hampden Rd
www.astrodyne.com
www.roassoc.com
Tel: (800) 823-8082
Fax: (508) 339-0375
sales@astrodyne.com
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