Xilinx AC701 User Manual

68 www.xilinx.com AC701 Evaluation Board
UG952 (v1.3) April 7, 2015
Chapter 1: AC701 Evaluation Board Features
Figure 1-44 shows the power system for UCD90120A U8 controller #1
X-Ref Target - Figure 1-44
Figure 1-44: U8 Controller #1 UCD90120A Power System
UG952_c1_41_030915
UCD90120A
Controller
(Controller 1)
U8
1. Capacitors labled C
f
are bulk filter capacitors.
2. Voltage Sense is connected at point of load.
GPIO (Out)
FPWM (Out)
ADC (In)
ADC (In)
GPIO (Out)
Input
Filter
LMZ31710
U49 (1.0V Nom)
Vin Vout
EN
FB
Rail Enable
PWM Margin
Current Sense
Voltage Sense
(2)
Low Pwr Select
Rs 5mΩ
+12V
V
fb
VCCINT 1.0V
C
f
C
f
(1)
GPIO (Out)
FPWM (Out)
ADC (In)
ADC (In)
Input
Filter
LMZ31506
U53 (1.8V Nom)
Vin Vout
EN
FB
Rail Enable
PWM Margin
Current Sense
Voltage Sense
(2)
Rs 5mΩ
+12V
V
fb
VCCAUX 1.8V
C
f
C
f
GPIO (Out)
FPWM (Out)
ADC (In)
ADC (In)
Input
Filter
LMZ31503
U54 (1.0V Nom)
Vin Vout
EN
FB
Rail Enable
PWM Margin
Current Sense
Voltage Sense
(2)
Rs 5mΩ
+12V
V
fb
VCCBRAM 1.0V
C
f
C
f
GPIO (Out)
FPWM (Out)
ADC (In)
ADC (In)
Input
Filter
LMZ31506
U55 (1.5V Nom)
Vin Vout
EN
FB
Rail Enable
PWM Margin
Current Sense
Voltage Sense
(2)
Rs 5mΩ
+12V
V
fb
FPGA_1V5 1.5V
C
f
C
f
Notes:
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Xilinx AC701 Specifications

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Brand	Xilinx
Model	AC701
Category	Motherboard
Language	English