Picor PI2161-EVAL1, User Manual

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Picor Corporation • picorpower.com PI2161-EVAL1 User Guide Rev. 1.0 Page 3 of 8
I
tem QTY
Ref.
Designator
Value/Part NO. Description Footprint Manufacturer
1 1 C1 0.1μF MLCC Capacitor, X7R, 0.1μF,50V 0805
2 2 C2, C3 1μF MLCC Capacitor, X7R, 1μF,50V 1206
3 1 C4 22μF ELEC Capacitor, 22μF,100V
4 2 EN, VO 1528 Turret Test point TURRET - 1528 Keystone Electronics
5 4
Vin+, Vin-,
Vout+, Vout-
1502 Turret Test point TURRET - 1502 Keystone Electronics
6 1 Q1 DTC114EUAT106 Transistor, Digital NPN,50V SOT-323 Rohm Semiconductor
7 1 R1 120mΩ Resistor, 0.12Ω,1%,0.25W 0805
8 R2 Not installed Resistor 0805
9 1 R3 6.04kΩ Resistor,6.04K,1%,0.25W 1206
10 1 R4 16.9kΩ Resistor,16.9K,1%,0.1W 0603
11 1 R5 150kΩ Resistor,150K,1%,0.1W 0603
12 1 SW1 Switch
SW SPDT SM
CAS-120
13 1 U1 PI2161-01-LGIZ Picor Cool-Switch Controller IC
7mmx8mm 17-pin
LGA SiP
PICOR
Table 2: PI2161-EVAL1 Evaluation Board Bill of Materials
Ref. Designator Value/Part NO. Functional Description
C1 0.1μF VC Bypass Capacitor
C2, C3 Not installed
Snubber to reduce high voltage noise after disconnect due to high current short.
Recommended value 1μF.
C4 22μF Output Electrolytic Capacitor
Q1 DTC114EUAT106 PI2161 enable inverting polarity
R1 120mΩ Current sense resistor
R2 Not installed Optional high side bias resistor.
R3 6.04kΩ Low side bias resistor (R
PG
)
R4 16.9kΩ VO voltage divider. When the internal MOSFET gate is enabled
R5 150kΩ
pin pull-up resistor.
SW1 Switch Output Enable/Disable switch
U1 PI2161-01-LGIZ Full-Function Load Disconnect Switch Solution.
Table 3: Component functional description