SMFL283R3S Datasheet, PDF (2/13 Pages) Interpoint Corporation Company – DC/DC CONVERTERS 28 VOLT INPUT

Crane Aerospace & Electronics Power Solutions
SMFL Single and Dual DC/DC Converters
28 Volt input – 65 Watt
SINGLE OUTPUT MODELS CONNECTION DIAGRAMS - SENSE AND PARALLEL
+
28V
–
Inhibit
Sync In
+
28V
–
Inhibit
Sync In
1 _{Positive Input}
MSTR/INH2 ¹²
2 _{Input Common}
Slave ¹¹
3 _TR1
Pos. Sense ¹⁰
4 _INH1
Sense Return ⁹
–
5 _{Sync Out}
Output Common ⁸
6 _{Sync In}
7
Positive Output
+
RL
REMOTE SENSE CONNECTION
1 _{Positive Input}
MSTR/INH2 ¹²
2 _{Input Common}
3 _TR1
Slave ¹¹
Pos. Sense ¹⁰
RA
4 _INH1
Sense Return ⁹
–
5
Sync Out
8
Output Common
6
Sync In
7
Positive Output
+
RL
OUTPUT VOLTAGE ADJUST CONNECTION
VOUT INCREASE
(VOLT)
0.1
0.2
0.3
0.4
0.5
3.3-V
120
240
360
480
600
RA (OHMS)
5–V 12–V
70
25
140
50
210
75
280 100
350 125
15–V
20
40
60
80
100
Figure 1: Sense Connections and Trim Table
+
1 _{Positive Input}
MSTR/INH2 ¹²
28V
–
2 _{Input Common}
Slave ¹¹
3 _TR1
Pos. Sense ¹⁰
Inhibit
4 _INH1
MASTER _{Sense Return} 9
–
5 _{Sync Out}
Output Common ⁸
Sync In
6
Sync In
7
Positive Output
+
RL
CONNECT ONLY WHEN 2 SLAVES ARE USED
1 Positive Input
MSTR/INH2 12
2 _{Input Common}
Slave ¹¹
3 _TR1
4 _INH1
Pos. Sense ¹⁰
SLAVE 1 _{Sense Return} 9
5 _{Sync Out}
Output Common ⁸
6 _{Sync In}
Positive Output ⁷
1 Positive Input
MSTR/INH2 12
2 _{Input Common}
Slave ¹¹
3 _TR1
4 _INH1
Pos. Sense ¹⁰
SLAVE 2 _{Sense Return} 9
5 _{Sync Out}
6 _{Sync In}
Output Common ⁸
Positive Output ⁷
Figure 2: Parallel Connections
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Rev H - 20061102