Crane Aerospace & Electronics Power Solutions
sMsa single and dual dc/dc converters
28 Volt input – 5 Watt - pending reVision F release
Operating COnditiOns and
CharaCteristiCs
input Voltage range
•
16 to 40 VdC continuous
•
50 V for up to 50 msec transient
inhibit
output power
•
5 watts
lead soldering temperature (10 sec per lead)
•
300°C
storage temperature range (case)
•
-65°C to +135°C
•
active low (output disabled)
-
Active low voltage ≤0.8 V max
- inhibit pin current 4 ma max
- Referenced to input common
•
active high (output enabled)
- open collector
- open pin voltage, 9 - 11 Volts
meChaniCal and envirOnmental
size (maximum)
•
1.075 x 1.075 x 0.270 inches (27.31 x 27.31 x 6.86 mm)
•
see case C1 for dimensions.
Weight (maximum)
•
15 grams typical
input to output capacitance
•
50 pF typical
output Voltage temperature coefficient
•
100 ppm/°C typical
derating output power/current (tc)
•
linearly from 100% at 125°C to 0% at 135°C
case operating temperature (tc)
•
-55°C to +125°C full power
•
-55°C to +135°C absolute
isolation
•
100 megohm minimum at 500 VdC
•
any pin to case, except case pin
•
audio Rejection
•
50 dB typical
conversion Frequency
•
500 kHz typical
•
450 kHz min, 600 kHz max
screening
space Prototype (o), Class H, or Class K are radiation tolerant to
Radiation Hardness assurance (RHa) levels of “-” (o) or “R”, per
mil-sTd-38534. interpoint model numbers use an “o” in the RHa
designator position to indicate the “-” (dash) Radiation Hardness
assurance level of mil-PRF-38534, which is defined as “no RHa”.
see “Class H and K, mil-PRF-38534 screening” tables for more
information. available configurations: oo, HP, KP, HR, KR
SMSA SINGLE AND DUAL
Positive 6
Input
Input Filter
Output Filter
1 Positive
Output
Inhibit 5
PWM
Control
Input 7
Common
Case 8
Ground
Feedback
Error
Amp
VRef
2
Output
Common
Output Filter
= DUAL OUTPUT
3
Negative
Output
F
igure
1: SmSa b
lOCk
D
iagram
www.interpoint.com
Page 2 of 14
Rev F - 20090318 - Pending Revision F Release
CRANE [ Crane Aerospace & Electronics. ]
