Vicor PI2003-EVAL1 Active ORing Evaluation Board User Manual
Page 3
C1
1uF
11k
R1
24K
R2
FT1
VC1
FT1
PI2003
GND
1
GATE
2
VC
3
FC
5
FT
6
SP
7
SN
8
U1
Vout-
Vin2+
BUS(+) A
BUS(+) B
C3
2.2uF
C4
Not Installed
C5
22uF
Vout+
D1
VC1
R5
Not Installed
Vin1+
C2
1uF
11k
R3
24K
R4
FT2
VC2
FT2
BUS(- ) B
Vin2-
PI2003
GND
1
GATE
2
VC
3
FC
5
FT
6
SP
7
SN
8
U2
D2
1
2
3
4
5
6
7
8
Q2
IRF7853
VC2
R6
Not Installed
BUS(- ) A
Vin1-
1
2
3
4
5
6
7
8
Q1
IRF7853
Figure 2 – PI2003-EVAL1 Evaluation Board schematic.
Item
QTY
Reference Designator
Value
Description
Footprint
Manufacturer
1
2
C1, C2
1 µF
Capacitor, MLCC X5R, 1 µF,16 V
0603
2
1
C3
2.2 uF
Capacitor, MLCC X7R, 2.2 uF, 100 V
1812
C4
Not installed
1812
C5
22 µF
Capacitor, Electrolytic, 22 µF 100 V
4
2
D1, D2
LED, Super Red
THIN 0603
Lite-On, Inc.,
5
4
FT1, FT2, VC1, VC2
Turret Test point
TURRET-1528
Keystone Electronics
6
6
Vin1+, Vin1-, Vin2+, Vin2-,
Turret Test point
TURRET-1502
Keystone Electronics
Vout+, Vout-
9
2
Q1, Q2
IRF7853
100 V, 8.3 A, N-MOSFET
SO-8
International Rectifier
10
2
R1, R3
11 K
Ω
Resistor, 11 K
Ω,1/4 W, 5%
0805
11
2
R2, R4
24 K
Ω
Resistor, 24 K
Ω,1/8 W, 5%
0805
12
2
R5, R6
Not Installed
0805
16
2
U1, U2
PI2003
Picor Active ORing Controller
3mmx3mm; 10-TDFN
PICOR
Table 2 – PI2003-EVAL1 Evaluation Board bill of materials
Reference Designator
Value
Functional Description
C1, C2
1 uF
VC Bypass Capacitor
C3, C4, C5,
Output (Load) Capacitor
D1, D2
LED
To indicate a fault exists when it is on
Q1, Q2
N-MOSFET
ORing MOSFET
R1, R3
11 K
Ω
VC Bias resistor
R2, R4
24 K
Ω
LED current limit resistor
R5, R6
Not Installed
Optional to connect VC to separate source
U1, U2
PI2003
Picor Active ORing Controller
Table 3 – Component functional description
Picor Corporation • www.picorpower.com
PI2003-EVAL1 User Guide Rev 1.0 Page 3 of 8