DC/DC C
ONVERTERS
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
CONDITIONS
25°C
+V
OUT
–V
OUT
–55°C TO +125°C +V
OUT
–V
OUT
OUTPUT CURRENT
1, 2
OUTPUT POWER
1, 2
OUTPUT RIPPLE
VOLTAGE +/– V
OUT
LINE REGULATION
V
IN
= 17 TO 40VDC
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
EFFECT ON –V
OUT
INPUT VOLTAGE
1
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE
CURRENT
1
EFFICIENCY
LOAD FAULT
6
V
IN
= 17 TO 40 VDC
V
IN
= 17 TO 40 VDC
10 kHz - 2 MHz
25°C
+V
OUT
–V
OUT
+V
OUT
–V
OUT
25°C SEE NOTES 4 & 9
25°C SEE NOTES 5 & 9
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
INHIBITED
10 kHz - 10 MHz
25°C
POWER DISSIPATION
25°C
SHORT CIRCUIT
RECOVERY
9
STEP LOAD
RESPONSE ± V
OUT
STEP LINE
9
RESPONSE ± V
OUT
START–UP
1
50 – 100 – 50% BALANCED
TRANSIENT
RECOVERY
7, 9
17 – 40 – 17 V
IN
TRANSIENT
8
RECOVERY
7
DELAY
OVERSHOOT
9
FULL LOAD
NO LOAD
—
—
0
50
50
250
—
—
0
120
120
600
—
—
0
150
FMTR2805D
MIN
TYP
MAX
4.95
5.00
5.05
4.90
4.85
4.80
0
0
—
—
—
—
—
—
—
—
17
0
—
—
—
75
72
—
—
—
—
—
—
—
—
5.00
5.00
5.00
2.5
—
75
—
10
50
5
45
8
5
28
—
35
3
5
77
74
—
—
1.4
±200
100
±200
—
1.4
5.08
5.15
5.18
4.5
25
140
180
50
100
50
120
—
—
40
50
75
8
10
—
—
10
12
5.0
±300
200
±400
300
5
FMTR2812D
MIN
TYP
MAX
11.88 12.00 12.12
11.80
11.64
11.56
0
0
—
—
—
—
—
—
—
—
17
0
—
—
—
78
75
—
—
—
—
—
—
—
—
12.00
12.00
12.00
1.25
—
25
—
10
50
15
45
5
4
28
—
50
3
5
80
77
—
—
1.4
±150
100
±200
—
1.4
12.18
12.36
12.42
2.25
30
80
120
50
150
50
170
—
—
40
50
75
8
10
—
—
10
12
5.0
±300
200
±400
300
5
FMTR SERIES
30 WATT
FMTR2815D
MIN
TYP
MAX
14.85 15.00 15.15
14.76 15.00
14.55
15.00
15.23
15.45
15.53
1.8
30
80
120
50
180
50
190
—
—
40
50
75
8
10
—
—
10
12
5.0
±400
200
±500
300
5
150
750
A
W
mV p-p
mV
UNITS
Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
VDC
14.46 15.00
0
0
—
—
—
—
—
—
—
—
17
0
—
—
—
79
76
—
—
—
—
—
—
—
—
1.0
—
40
—
10
50
15
40
3
4
28
—
50
3
5
82
78
—
—
1.4
±200
100
±400
—
1.4
mV
%
VDC
V
mA
mA
mA p-p
%
W
ms
mV pk
µs
mV pk
µs
ms
mV pk
Notes
1. Tc = –55°C to +125°C.
2. Up to 90% of the total output current/power is available from either output
providing the positive output is carrying at least 10% of the total output
power.
3. Operation is limited below 17 V (see Figure 19).
4. Effect on the negative output under the following conditions:
+P
out
20% to 80%; –P
out
80% to 20%
5. Effect on the negative output under the following conditions:
+P
out
50%; –P
out
10% to 50%
6. Indefinite short circuit protection not guaranteed above 125°C case.
7. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
8. Transition time
≥
10 µs.
9. Parameter shall be tested as part of device characterization and after design
and process changes. Thereafter, parameters shall be guaranteed to the
limits specified in the electrical Characteristics table.
3
CRANE [ Crane Aerospace & Electronics. ]
