MSA SERIES
5 WATT
DC/DC CONVERTERS
ABSOLUTE MAXIMUM RATINGS
INHIBIT
TYPICAL CHARACTERISTICS
Input Voltage
• 16 to 40 V
Output Power
• 5 watts
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +135°C
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low voltage ≤0.8 V max
Inhibit pin current 4 mA max
• Referenced to input common
• Logic high (output enabled)
Open collector
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 50 pF typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 50 dB typical
Conversion Frequency
• 550 kHz typical (400 kHz 60 V model)
450 kHz min, 600 kHz max
350 kHz min, 450 kHz max 60 V model
Inhibit Pin Voltage (unit enabled)
• 9 to 11 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for up to 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current (Tc)
• Linearly from 100% at 125°C to 0% at 135°C
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
1
SINGLE OUTPUT MODELS
PARAMETER
MSA2805S
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
Tc = –55°C TO +125°C 4.95 5.00 5.05 5.15 5.20 5.25 11.88 12.00 12.12 14.85 15.00 15.15 59.1 60.00 60.9
MSA285R2S
MSA2812S
MSA2815S
MSA2860S
CONDITIONS
UNITS
VDC
OUTPUT VOLTAGE
OUTPUT CURRENT
Tc = –55°C TO +125°C
V
V
= 16 TO 40 VDC
= 16 TO 40 VDC
0
—
—
1000
5
0
—
—
962
5
0
—
—
417
5
0
—
—
333
5
0
—
—
20
mA
W
IN
OUTPUT POWER
IN
Tc = –55°C TO +125°C
—
—
—
—
—
1.2
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
10 kHz - 2 MHz
= 16 TO 40 VDC
IN
Tc = –55°C TO +125°C
NO LOAD TO FULL
Tc = –55°C TO +125°C
Tc = –55°C TO +125°C
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
10 kHz - 10 MHz
Tc = –55°C TO +125°C
—
—
—
125 350
2
—
—
—
110 335
—
—
—
50
10
10
200
50
—
—
—
50 170
—
—
—
—
—
—
300
300
300
mV p-p
mV
V
10
50
10
10
50
50
10
10
50
50
LOAD REGULATION
10
50
50
mV
INPUT VOLTAGE
NO LOAD TO FULL
16
0
28
—
27
250
3
40
50
40
—
16
0
28
—
28
250
3
40
50
40
—
16
0
28
—
29
235
3
25
30
76
1.2
1
40
50
42
—
16
0
28
—
31
235
3
40
50
44
—
5
16
0
28
—
—
72
3
—
—
75
—
—
40
50
30
—
5
90
—
—
—
—
VDC
V
INPUT CURRENT
Tc = –55°C TO +125°C
—
—
—
—
—
66
—
—
—
—
—
—
—
66
—
—
—
—
—
—
—
70
—
—
—
—
—
—
—
71
—
—
—
—
—
—
—
70
—
—
mA
5
5
5
INPUT RIPPLE
CURRENT
25
30
71
100
150
—
25
30
71
1.5
1.5
100
150
—
2.0
25
100
150
—
1.9
10
25 100
30 150
mA p-p
EFFICIENCY
LOAD FAULT
76
1.2 1.8
10
—
%
W
ms
3, 4
POWER DISSIPATION
RECOVERY
50% - 100% - 50%
TRANSIENT
1.5
12.5
2.0
25
SHORT CIRCUIT
STEP LOAD
1
4, 5
RESPONSE
—
—
100 250
100 250
—
—
100 250
100 250
—
—
150 375
200 500
—
—
200 500
200 500
—
—
—
—
—
—
mV pk
µs
RECOVERY
STEP LINE
RESPONSE
TRANSIENT
16 TO 40 V
IN
4, 5
—
—
50
50
150
150
—
—
50
50
150
150
—
—
80
200
—
—
50 125
50 125
—
—
—
—
—
—
mV pk
µs
40 TO 16 V
IN
100 250
RECOVERY
16 TO 40 V
IN
—
—
100 250
200 500
—
—
100 250
200 500
—
—
250 625
250 625
—
—
250 625
250 625
—
—
—
—
—
—
40 TO 16 V
IN
START-UP
Notes
DELAY
OVERSHOOT
—
—
10
0
25
50
—
—
10
0
25
50
—
—
3
0
10
120
—
—
3
0
10
150
—
—
—
—
—
—
ms
mV pk
1. MSA2860S specifications are at 25°Tc only, contact your Interpoint
representative for more information on over temperature specs.
3. Indefinite short circuit protection not guaranteed above 125°C (case).
4. Recovery time is measured from application of the transient to point at which
2. Line regulation for /ES and non /ES 2805S models at 16 to 17 V and 110
°C to 125°C (case) is 5% (max).
V
is within 1% of V at final value.
OUT
IN
OUT
5. Transition time >10µs.
2
CRANE [ Crane Aerospace & Electronics. ]
