0.400
(10.16)
0.300
(7.62)
0.300
(7.62)
0.400
(10.16)
0.30
(7.6)
2.00
(50.8)
2.40
(61.0)
0.20
(5.1)
0.224 Ø MAX
(5.69 Ø MAX)
MOUNTING
INSERTS
M3x0.5 THRU
4PL
2.28
(57.9) 1.90
(48.3)
0.19
(4.8)
-IN
CASE
ON/
OFF
+IN
-OUT
-S
T
+S
+OUT
0.040 (1.02) Ø PIN
FUSED TIN
OVER COPPER
7PL
0.080 (2.03) Ø PIN
FUSED TIN
OVER COPPER
2PL
ALUMINUM HEATSINK
SURFACE
0.47
(11.9) 0.40
(10.2)
SEE OPTIONAL
PIN LENGTHS
0.2 MIN
(5.1 MIN)
0.515 0.020
(13.08 0.5)
MODEL SELECTION
Model Output Output
Voltage Current
28 VDC
(18-36V)
SV28-2.5-150-1 2.5V 30A
SV28-3.3-50-1 3.3V 10A
SV28-3.3-75-1 3.3V 15A
SV28-3.3-100-1 3.3V 20A
SV28-3.3-150-1 3.3V 30A
SV28-3.3-200-1 3.3V 40A
SV28-5-50-1 5V 10A
SV28-5-75-1 5V 15A
SV28-5-100-1 5V 20A
SV28-5-150-1 5V 30A
SV28-5-175-1 5V 35A
SV28-12-50-1 12V 4.2A
SV28-12-75-1 12V 6.3A
SV28-12-100-1 12V 8.3A
SV28-12-150-1 12V 12.5A
SV28-24-50-1 24V 2.1A
SV28-24-75-1 24V 3.2A
SV28-24-100-1 24V 4.2A
SV28-24-150-1 24V 6.3A
SV28-28-150-1 28V 5.35A
DESCRIPTION
The SuperVerter 28 Series are high power
density and high dynamic response DC-DC con-
verters designed for use in telecom, wireless, and
other centralized modular or distributed power
systems using 24V input. The SuperVerter 28
family of DC-DC converters may be used as
form, fit, function replacements for the
industry standard half bricks.
FEATURES
• Direct Replacement for Industry Standard
• High Efficiency
• High MTBF (1.8 million hours)
• Constant Frequency
• Clamp Over Voltage Protection
• Remote Sense
• Trim Range: 60% to 110%
• Encapsulated
• High Power Density
• Low Noise
• -40°to +100°C Baseplate Operation
• Choice of On/Off Logic
• Safety Agency Approved
• Threaded or Thru Mounting Holes
• Optional Pin lengths
• Over Temperature Protection
OPTIONAL FEATURES
For the optional features listed below, simply
list the appropriate digit(s) for the features
you want in ascending order in the suffix
following -50 to -200 in the part number.
Feature Options Suffix
Negative Logic On/Off is standard include “1” in the suffix
Positive Logic On/Off is optional delete “1” from the suffix
Threaded mounting holes, as shown in
the outline drawing are standard no suffix digit required
Optional thru mounting holes (without
threads) of 0.130” inside diameter* include “4” in the suffix
Pin length of 0.20” (5.1mm) is standard no suffix digit required
Pin length of 0.145” (3.68mm)* include “6” in the suffix
Pin length of 0.110” (2.79mm)* include “8” in the suffix
* Minimum order quantities apply.
Examples:
SV28-5-100-1 Standard module negative logic, threaded inserts, 0.20
inch pins.
SV28-5-100-48 Positive logic, through hole inserts, 0.110 inch pins.
SV28-5-100-146 Negative logic, through hole inserts, 0.145 inch pins.
32
SV28 SUPERVERTER®50/75/100/150/175 SERIES
36-175 WATTS 28VDC INPUT 1/2 BRICK INDUSTRY STANDARD
SV28 SUPERVERTER (50/75/100/150/175) SERIES SPECIFICATIONS
Min Typical Max Units Conditions
Absolute Maximum Ratings: Exceeding absolute maximum ratings may cause permanent damage or reduce reliability.
PARAMETER Input Voltage 40 Vdc Continuous
Transient Input Voltage 50 Vdc 100 msec max.
Input/Output Isolation 1500 Vdc
Operating Case Temperature -40 100 °C
Storage Temperature -40 110 °C
Electrical Specifications: Apply over the entire range of input voltage, output current, and temperature unless indicated.
INPUT Input Voltage 18 28 36 Vdc
Maximum Input Current See web site: www.roassoc.com
Input Ripple Rejection 60 dB @120 Hz
OUTPUT Voltage Set Point 2 % 48V In, Full Load 25°C
Load Regulation 0.05 0.2 % 0 to Full Load
Line Regulation 0.01 0.1 % Over Vin Range
Voltage Drift w/Temperature
Ripple See web site: www.roassoc.com
Current See Model Selection
Current Limit Inception 115 130 % Iout max. Vout = 90% Vout nominal,
See Output Characteristic Curves
Short Circuit Current 170 % Iout max Vout = 250 mV,
See Output Characteristic Curves
Transient Response Peak Deviation 3 % Vout 50 to 75% or 50 to 25%
(0.1A/µsec slew rate) Load Change
Transient Response Settling Time 300 µsec Vout within 1% Vout nominal
(0.1A/µsec slew rate)
Efficiency See Curves on Page 78 or web site: www.roassoc.com
External Load Capacitance 0 10,000 µF
ISOLATION Input to Output Capacitance 2000 pF
Input to Output Resistance 10 M ohms
Input to Output 1500 Vdc
Input to Case 1500 Vdc
Output to Case 500 Vdc
MECHANICAL Weight 118 (4.2) g (oz.)
Size 0.5x2.4x2.28 inches See Outline Drawing
Thermal Resistance Case to Ambient 6.6 °C/W Case Temperature = 100°C
FEATURES Trim Range 60 110 %Vout
Remote Sense Compensation 0.5 V
Over Voltage Clamp See web site: www.roassoc.com
Over Temperature Shut-down 105 °C Case Temperature
(Not in 50W and 75W models)
Logic On/Off
Logic Low: Von/off 0 1.2 V @ Ion/off = 1 mA
Ion/off 1.0 mA @ Von/off = 0V
Logic High: Von/off 15 V @ Ion/off = 1 mA
Ion/off 50 µA @ Von/off = 15V
Turn-on Time 8 35 msec 80% load, Vout within
1% Vout nominal
RO Associates | Tel: 408.744.1450 | Fax: 408.744.1521 | email: sales@roassoc.com
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