Manual

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
66
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 KΩ Resistor, 11 KΩ,1/4 W, 5% 0805
11 2 R2, R4 24 KΩ Resistor, 24 KΩ,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 KΩ VC Bias resistor
R2, R4 24 KΩ 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