POWERLINE
DC/DC-Converter
Application of Synchronization
+ Vin
Vin
CLK
Converter 1
2+
4 Sync
3
Converter 2
2+
4 Sync
3
2N7000
CLK Signal
80%
20%
RP40-S_D_TE
Series
1. The unit is capable of external synchronization from
an independent time base with a switching rate
between 200kHz and 215 kHz.
2. The amplitude of the synchronizing pulse train is
TTL compatible.
3. The duty cycle of the CLK should be 20% high and
80% low.
4. Synchronization is referenced to negative input
(–Vin).
+ Vin
Vin
ON/OFF
Control
Converter
2+
1 CTRL
3
External Output Trimming
Output can be externally trimmed by using the method
shown below.
( ) for dual output trim
[ ] for triple output trim
{ } for RP40-xx3.305DE only trim 3.3V / 5V
7(7) [9] {6}
6(8) [10] {8}
Trim Up
RU
Trim Down
6(8) [10] {8}
RD
5(5) [8] {5}
274
July-2006
www.recom-international.com