DC/DC C
ONVERTERS
PARAMETER
OUTPUT VOLTAGE
CONDITION
+V
OUT
– V
OUT
OUTPUT CURRENT
OUTPUT POWER
1
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
LOAD REGULATION
CROSS REGULATION
2
–55°C to +85°C
BW
≤
2 MHz
V
IN
= 18 TO 40
NO LOAD TO FULL
+V
OUT
– V
OUT
INPUT VOLTAGE
–55°C to +85°C
INPUT CURRENT
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
BW
≤
2 MHz
DELAY
3
OVERSHOOT
MIN
11.88
11.88
—
—
—
—
—
—
—
18
—
—
—
—
—
81
—
—
MTW2812D
TYP
MAX
12.0
12.0
—
—
50
10
20
2.5
2.5
28
—
35
—
—
15
84
30
500
12.12
12.12
2.5
30.0
85
25
50
3.5
3.5
40
50
50
1350
24
50
—
—
—
MIN
14.85
14.85
—
—
—
—
—
—
—
18
—
—
—
—
—
82
—
—
MTW2815D
TYP
MAX
15.0
15.0
—
—
50
10
20
2.2
2.2
28
—
45
—
—
15
85
30
500
15.15
15.15
2.0
30.0
85
25
50
3.2
3.2
40
50
60
1400
24
50
—
—
—
mA
VDC
A
W
mV p-p
mV
mV
%
UNITS
VDC
MTW SERIES
30 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
INPUT RIPPLE
CURRENT
EFFICIENCY
START-UP
mA p-p
%
ms
mV
Notes
1. Up to 90% of full power is available from either output providing the total power does not exceed 30 watts.
2. The effect on the output voltage of either output (held at 3 watts) when the other output is varied from 3 to 27 watts.
3. A low output impedance power source is required on the input to realize this start-up time. If less than full surge
current is available, start-up time will be longer
PIN OUT
Squared corner and dot on
top of cover indicate pin one.
Pin
1
2
3
4
5
6
7
8
9
10
MTW2805S
Positive Input
Inhibit
Sense Return
Output Common
Positive Output
Positive Sense
Case Ground
No connection
No connection
Input Common
Single Output
Positive Input
Inhibit
No connection
Output Common
Positive Output
No connection
Case Ground
No connection
No connection
Input Common
Dual Output
Positive Input
No connection
Positive Output
Output Common
Negative Output
No connection
Case Ground
Inhibit
Input Common
Input Common
1
2
3
4
5
BOTTOM VIEW
MTW
See section B8, case J5, for dimensions.
10
9
8
7
6
F
IGURE
1: P
IN
O
UT
B4-11
CRANE [ Crane Aerospace & Electronics. ]
