DCP01B SERIES
www.ti.com
SBVS012C − DECEMBER 2000 − REVISED AUGUST 2005
The outputs on dual output DCP01B versions can also be
connected in series to provide two times the magnitude of
Connecting the DCP01B in Series
Multiple DCP01B isolated 1W DC/DC converters can be
connected in series to provide nonstandard voltage rails.
This is possible by using the floating outputs provided by
the DCP01B galvanic isolation.
V
OUT, as shown in Figure 2. For example, a dual 15V
DCP01B could be connected to provide a 30V rail.
Connecting the DCP01B in Parallel
Connect the positive VOUT from one DCP01B to the
negative VOUT (0V) of another, as shown in Figure 1. If the
SYNCIN pins are tied together, the self-synchronization
feature of the DCP01B will prevent beat frequencies on the
voltage rails. The SYNCIN feature of the DCP01B allows
easy connection in series, which reduces separate filtering
components.
If the output power from one DCP01B is not sufficient, it is
possible to parallel the outputs of multiple DCP01B
converters (see Figure 3). Again, the SYNCIN feature
allows easy synchronization to prevent power-rail beat
frequencies at no additional filtering cost.
VSUPPLY
VOUT 1
VS
(1)
CIN
SYNCIN
0V
COUT
DCP
DCP
01B
01B
0V
VOUT 2
0V
VOUT1 + VOUT2
VS
(1)
CIN
COUT
SYNCIN
0V
µ
CIN requires a low−ESR ceramic capacitor: 5V to 15V version is 2.2 F;
NOTE: (1)
COM
µ
µ
24V version is minimum 0.47 F. COUT = 1.0 F.
Figure 1. Connecting the DCP01B in Series
VSUPPLY
+VOUT
VS
0V
+VOUT
(1)
COUT
(1)
CIN
−
VOUT
0V
−
VOUT
DCP
01B
(1)
COUT
µ
CIN requires a low−ESR ceramic capacitor: 5V to 15V version is 2.2 F;
NOTE: (1)
COM
µ
µ
24V version is minimum 0.47 F. COUT = 1.0 F.
Figure 2. Connecting Dual Outputs in Series
VSUPPLY
VOUT
VS
(1)
(1)
CIN
SYNCIN
0V
COUT
DCP
DCP
01B
01B
0V
2 x Power Out
VS
VOUT
(1)
(1)
COUT
CIN
SYNCIN
0V
0V
µ
IN requires a low−ESR ceramic capacitor: 5V to 15V version is 2.2 F;
C
NOTE: (1)
COM
µ
µ
24V version is minimum 0.47 F. COUT = 1.0 F.
Figure 3. Connecting Multiple DCP01Bs in Parallel
11
TI [ TEXAS INSTRUMENTS ]
