Datasheet

UG-320 Evaluation Board User Guide
Rev. A | Page 32 of 48
INTERFACES SCHEMATIC
I2C INTERFACE AND FILTERING
5V-12V BOOST SUPPLY FOR DRIVERS
FAN CONTROL
12V EXTERNAL CONNECTOR
PWM CONNECTIONS. PHASE 2 DISABLED IN LIGHT LOAD
LORTNOCNI_GALFDNANO_SPSNOITCENNOCDRACRETHGUAD6401PDA
LED INDICATORS
CURRENT SHARE
ISHARE
+12V
RED
RED
ETIHWNEERG
PGOOD1
PGOOD2
SHAREO
SHAREI
OUTX OUTD
OUTC
OUTB OUTA
SR1 SR2
GATE
Phase1_SR_DR
Phase2_switch_DR Phase1_switch_DR
+5V
AGND
PSON
VCC+12V
SDA
SCL
+5V
VS1
OUTX OUTB
OUTD OUTA
PGOOD1
PGOOD2 +3.3V
VCC+12V
+3.3V
FLAGIN
SDA
SCL RTD FLAGIN PSON
CS1
ACSNS CS2- CS2+ VS1
VS2 VS3+ VS3- +3.3V
AGND
+5V
VCC+12V
VCC+12V
OUTX
VOUT
OUTC
Phase1_FRwheel_DR
SR1
Phase2_SR_DR
SR2
Phase2_FRwheel_DR
VS3-
SHAREI
SHAREO
PGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
PGND
+3.3V
AGND
R42
0
D21
2
1
C18
10uF
R33
2k2
D23
21
TP9
FLAGIN
J19
1 2
1 2
C26
10uF
R80 100
1N4148D25
21
1N4148 D16
2
1
C33
33p
TP18
SR1
J5 ADP1043_DC
8
7
6 5
4 3 2
1
16
15 14
13
12
10
9
11
17 18 19
20
21 22 23
24 25
26
27
28 29 30
PGOOD1 PGOOD2 FLAGIN RTD SCL SDA SHAREI SHAREO ACSNS CS1 OUTA OUTB OUTC OUTAUX PSON
OUTD SR1 SR2 CS2- CS2+ PGND
VS1 VS2 GATE VS3+ VS3- 5V
3.3V AGND 12V
R43
0
TP3
PWMA
U4 ADP1111AR-12
1
2
3
4
5
6
7
8
ILIM VIN
SW1
SW2
GND
A0
SET SENSE
J16
12
1N4148
D30
2 1
C49
33pF
C31
0.1UF
TP11
+12V
C35
33p
C28
0.1UF
MBRX130
D11
2
1
C17
0.1UF
J7
1
2
1 2
R48
1 Ohm
D24
2
1
TP24
SR2
L3
VLCF4018T-330MR42-2
1N4148
D31
2
1
R47
0
R32 2k2
D22
2
1
1N4148
D29
2
1
C37
33p
TP5
PWMD
C27
10uF
R61 100
C30
0.1UF
SW1 PSON
1N4148
D27
2
1
R37
10K
TP7
PWMAUX
Q13
BSS138
1
2
3
R36 2k2
R52
0
J17
12
TP6
PWMB
1N4148
D28
2
1
1N4148
D26
2 1
R41
0
R53
0
J10
HDR1X4
1
2
3
4
1
2 3 4
C29
1uF
MURS120T3G D14
2
1
C45
33pF
R31 2k2
J6
1
2
1 2
TP13
PWMC
R62 100
R60 100
C34
33p
10180-074
Figure 76. Schematic—Interfaces