
IGLOO PLUS Starter Kit User’s Guide
23
3
Power
The IGLOO PLUS development board is powered through an external voltage power brick or USB. The board does not
switch seamlessly between the power brick and USB, so the 4-pin header and jumper must be used to select the desired
power source. In the USB option, the in-rush current meets the USB specifications (see
Figure 3-1
). The power brick
option is provided in applications when 100% of the total I/Os are utilized and USB power is insufficient. A green LED
next to the USB jack is ON whenever the USB power supply is connected.
The development board has an input of a 5 V supply from the power brick or USB. Protection diodes are used to protect
against negative voltage. Three voltage rails are provided, as shown in
Table 3-1
(3.3 V, 2.5 V, and 1.5 V).
The regulator can be switched between the 1.5 V and 1.2 V rail because the FPGA core functions at 1.2 V, but is
programmed at 1.5 V.
Figure 3-1 · USB Active Inrush Limiter
Table 3-1 · Power Regulator Current Ratings
Regulator
Current Rating
3.3 V
2 A
2.5V
1 A
1.5 V / 1.2 V 500 mA
5V
WALL
VUSB
5V_USB
5V_SOURCE
VUSB
BAT
ACTIVE INRUSH LIMITER
Q1 ONLY
INSTALLED ON
FACTORY DEMO
5V BRI
C
K
C5
0.1uF
C5
0.1uF
1
2
3
4
J9
4PIN_HEADER
J9
4PIN_HEADER
C4
0.027UF
C0402
C4
0.027UF
C0402
3
1
4
2
5
6
Q1
SI3407DV
Q1
SI3407DV
2
3
1
J10
CONN JACK PWR
Mfg P/N = PJ-002AH
Manufacturer = CUI INC
J10
CONN JACK PWR
Mfg P/N = PJ-002AH
Manufacturer = CUI INC
R5
22 OHM
R0402
R5
22 OHM
R0402
R65
10K
R65
10K
C8
0.1uF
C8
0.1uF
R8
220K
R0402
R8
220K
R0402
R6
22 OHM
R0402
R6
22 OHM
R0402
R4
2.7K
R0402
R4
2.7K
R0402
3
1
4
2
5
6
Q2
Si3407DV
Q2
Si3407DV
C3
0.1uF
C3
0.1uF
C6
0.1uF
C6
0.1uF
1
3
2
D10
BAT54
D10
BAT54
C7
0.1uF
C7
0.1uF
electronic components distributor
Содержание IGLOO PLUS Starter Kit
Страница 1: ...IGLOO PLUS Starter Kit User s Guide Downloaded from Elcodis com electronic components distributor...
Страница 6: ...Downloaded from Elcodis com electronic components distributor...
Страница 14: ...Downloaded from Elcodis com electronic components distributor...
Страница 50: ...Downloaded from Elcodis com electronic components distributor...
Страница 56: ...Downloaded from Elcodis com electronic components distributor...
Страница 61: ...Downloaded from Elcodis com electronic components distributor...