User guide
Picor Corporation • www.picorpower.com PI2121-EVAL1 User Guide Rev 1.1 Page 3 of 12
S
S
S
S
SP
FT
D
D
D
D
SN
UV
BK2
VC2
UV2
OV2
C5
NP
R1 R2
Q1
Rtn2
R8
2.00 k 1%
R10
Vin2
Vin2
UV2
8.45 K 1%
10 Ω
R7
NP: Not Populated
C4, C5, C6, C7, R6 and R13
GND
GND
Vaux2 Vaux2
OV2
2
3
4
5
6
7
1
17
16
15
14
13
C7
NP
SL2
VC2
C2
1 µF
R13
NP
J3
R12
4.99 K
D2
LTST-C191KRKT
BK
SL
VC
GND
OV
8
9
10
11
12
C1
1 uF
VC1
VC1
R5
4.99 K
10 Ω
R7
Vaux2
R11
2.00 K 1%
R9
13.3 K 1%
FT2
FT2
SIP2
PI2121
SIP1
PI2121
BK1
SL1
S
S
S
S
SP
FT
D
D
D
D
SN
UV
J1
UV2
2
3
4
5
6
7
1
17
16
15
14
13
BK
SL
VC
GND
OV
FT1
FT1
2.00 K 1%
13.3 K 1%
Vin1
GND
GND
Rtn1
Vaux1 Vaux1
2.00 K 1%
R3 R4
UV1 OV1
8.45 K 1%
Vin1
SL1
SL1
SL2
SL2
J2
Vaux1
D1
LTST-C191KRKT
R6
NP
8
9
10
11
12
OV1
Vout
C6
NP
C4
NP
Vout1
Vout2
GND3
GND4
C3
22 uF
Figure 2 – PI2121-EVAL1 Evaluation Board schematic.
Item QTY Reference Designator Value Description Footprint Manufacturer
1 2 C1, C2 1 µF
Capacitor, MLCC X5R,
0603
1 µF,16 V
2 1 C3 22 µF
Capacitor, MLCC X7R,
1210
22 µF, 25 V
3 4 C4, C5, C6, C7 Not installed 1206
4 2 D1, D2 LED, Super Red THIN 0603 Lite-On, Inc.,
58
FT1, FT2, Rtn1, Rtn2,
Turret Test point TURRET-1528
Keystone
SL1, SL2, Vaux1, Vaux2 Electronics
67
Gnd1, Gnd2, Gnd3, Gnd4,
Turret Test point TURRET-1502
Keystone
Vin1, Vin2, Vout1, Vout2 Electronics
7 2 J1, J3 Header Pins 0.1" pitch 2 x 3mm
8 1 J2 Header Pins 0.1" pitch 2 x 2mm
9 2 R1, R8 8.45 KΩ Resistor, 8.45 KΩ, 1% 0603
10 2 R2, R9 13.3 KΩ Resistor,13.3 KΩ,1% 0603
11 4 R3, R4, R10, R11 2.00 KΩ Resistor, 2.00 KΩ,1% 0603
12 2 R5, R12 4.99 KΩ Resistor, 4.99 KΩ,1% 0603
13 2 R6, R13 Not Installed 0603
14 2 R7, R14 10 Resistor, 10, 5% 0603
15 2 SiP1, SiP2 PI2121
Picor Full-Function 24 A
5x7mm;17 pins PICOR
Cool-ORing Solution
Table 3 – PI2121-EVAL1 Evaluation Board bill of materials