Vicor PI2007-EVAL1 48V Bus High Side Active ORing Evaluation Board - Manual (Page 4)

Picor Corporation • picorpower.com PI2007-EVAL1 User Guide Rev. 1.1 Page 4 of 10
Bill of Material
Item QTY Ref. Designator Value/Part NO. Description Footprint Manufacturer
1 4 C1, C2, C3, C4 Not Installed MLCC Capacitor, X7R, 1μF,50V 1206
2 2 C5, C6 1uF MLCC Capacitor, X7R, 1μF,50V, 0805
3 1 C7 22uF Electrolytic Capacitor 22μF,100V Panasonic _E/F Panasonic
4 1 C8 2.2uF MLCC Capacitor, X7R, 2.2μF,100V 1812
5 2 D1, D2 LTST-C191CKT LED, Red 0603 LED Lite-On
6 4 D3, D4, D5, D6 PMEG3005EJ,115 Schottky Diode, 30V, 500mA SOD-323 NXP
7 2 D7, D8 BZX384-B6V8,115 Zener Diode, 6.8V SOD-323F ON Semi
8 6
EN1, EN2,
1,
, VL1, VL2
1528 Turret Testpoint TURRET - 1528
Keystone
Electronics
9 6
Rtn, Rtn, Rtn,
Vin1, Vin2, Vout
1502 Turret Testpoint TURRET - 1502
Keystone
Electronics
10 2 Q1, Q2 IRF7853PBF N-MOSFET,100V,8.3A SO-8
International
Rectifier
11 2 Q3, Q4 2SA1579T106R PNP Transistor, 120V 50mA SOT-323 Rohm
12 2 Q5, Q6 DTC114EUAT106 NPN - Pre-Biased,50V, 50mA SOT-323 Rohm
13 2 Q7, Q8 FJV1845 NPN -Transistor, 120V, 50mA SOT-23 Fairchild
14 2 R3, R4 0 ohms Resistor,0 ohms,1%,0.1W 0603
15 2 R5, R6 249K Resistor,249K,1%,0.125W 0805
16 2 R7, R8 2.8K Resistor,2.8K,1%,0.1W 0603
17 6
R9, R10, R11,
R12, R13, R14
100K Resistor,100K,1%,0.125W 0805
18 2 R15, R16 1.5K Resistor,1.5K,1%,0.1W 0603
19 2 U1, U2 PI2007-00-QEIG Picor Cool ORing Controller IC 3x3mm 10L TDFN PICOR
Table 2: PI2007-EVAL1 Evaluation Board Bill of Materials
Ref. Designator Value/Part NO. Functional Description
C1, C2, C3, C4 Not Installed
Snubber capacitors to reduce voltage ringing when the device turns off.
Add the capacitors if a long harnesses are used to connect the power source or
load to the board.
C5, C6 1uF VC Bypass Capacitor
C7 22uF Output (Load) Capacitor
C8 2.2uF Output (Load) Capacitor
D1, D2 LTST-C191CKT To indicate a fault exists when it is on
D3, D4, D5, D6 PMEG3005EJ,115 Bypass diodes
D7, D8 BZX384-B6V8,115 Constant Current bias circuit Zener
Q7, Q8 FJV1845 Constant Current bias circuit Transistor
R5, R6 249K Constant Current bias circuit, bias resistors
R7, R8 2.8K Constant Current bias circuit, sets the current limiting
R15, R16 1.5K
LED current limit resistor, selected to operate at 3.3V and 5.0V logic voltage.
Replace R15 and R16 with the proper resistor value for different logic voltage.
U1, U2 PI2007 Cool ORing Controller
Table 3: Component functional description