UG:307
vicorpower.com
Applications Engineering: 800 927.9474
Page 6
General Components
1.
PI352x family product (PS101)
2.
Input lugs: Sized for #10 hardware. Use for making connection to the input source. This board does
not contain reverse polarity protection. Check for proper polarity before applying power.
3.
Input filtering: Sockets provision can be used for easy installation of aluminum-electrolytic input
capacitor and filtering (inductor and ceramic capacitors) allows for stable operation with most input
sources. 10 x 2.2µF output ceramic capacitors 1210 (C101- C110) are used to achieve <2% of V
IN
peak-to-peak ripple.
4.
Enable / Disable switch (S101): When actuator is towards “ON” position, the (EN) pin will be open
and the regulator will be allowed to power up. When actuator is towards “OFF”, the EN pin will be
connected to SGND pin and the regulator will be disabled. When switch (S101) is “ON”, an external
voltage source can control the EN pin state using the external EN test point.
5.
Wire to board connector (J108): provides access to the regulator signal. All signal pins are reference
to SGND.
n
n
TRK: An external capacitor may be connected between TRK pin and SGND to slow down the
internal reference ramp. With this pin connected to an external capacitor the output voltage
will track the slope effectively executing a soft-start function. See datasheet for additional
tracking options.
n
n
EAO: Internal transconductance amplifier output pin.
n
n
EN: Regulator enable pin. Regulator is disabled when (S101) is in “OFF” state as this pin is
connected to SGND. In “ON” state the module pin is allowed to float.
n
n
SGND: Internal logic ground return for all module. SGND to PGND connection is made inside
the regulator package.
J110
J109
J201
1
3
5
2
4
6
SYNC
O
SGND
SYNCI
SGND
Local Sense
Local Loop
J108
EN
SGND
TR
K
EAO
R211
LGH
SGND
Remote Sense
Remore Loop
R214
Note: Short pins (1 & 2 ; 3 & 4 ;
5 & 6) using Jumpers
Figure 2
Signal Connector and Header
Pinout, Front View
