Texas Instruments UCD3138 User Manual

DPWM_3B
FAULT_0
SCI_TX1
PWM-1
SCI_RX0
GND_Ext
FAULT_1
SYNC
SCI_RX1
PWM-0
SCI_TX0
3.3V
Ext Supply
AD_01
AD_02
AD_05 AD_07
AD_08
EADC_P2
EADC_P1
When U11 not installed, connect J14-1 and -3 to external source to get +12V_EXT
Vin = 90 to 264 Vac (47 to 63Hz)
Copper fill for heat-sink
AD_00 AD_03
AD_04
AD_06
EADC_P0
Isolated GND
OPTO Isolated Section
Isolated GND
R31 and R106 are preload resistors
If needed, connect J15-1 and -2 to use U11 to bias secondary side
External sync signal
Bridgeless PFC with CT_1 and CT_2 and Interleaved PFC with ISENSE_SHUNT.
Parts not used
AD_13
3
1
4
2
1
2
1
2
1
1
1
1
1
1
1
1
1
AGND
DGND
1
AC_Line
AC_Neutral
if use VAUX_P but not use VAUX_S
Secondary side
Isolation line
Fuse: T7A/250VAC
(J3-13)
(J3-25) (J3-26)
(J4-18)
(J4-20)
(J3-11)
(J3-8)
Secondary side
Secondary side
1
TP8
TP9
TP12
TP13
TP10
1
2
J7
R31
1.5k
C5
4.7nF
R19 4.7k
+
C1
10uF
TP11
C3
47nF
D18
C37
0.47uF
D21
TP4
R14
3.83k
R13
200k
R27
200k
D20
C20
1nF
R16
3.83k
R29
200k
R15
200k
TP3
1
2
3
4
5
K1
R68
C25
R24
R78
1.1k
TP2 TP1
1
2
3
J10
F2
R20 4.7k
+
C21 10uF
R28
200k
R3 50
C17
R1
C8
0.1uF
C13
0.1uF
C27
0.1uF
R79
100
R36 R34
R72
1.5k
J11
R21
4.7k
Q8
MMBT3904TT1
D19
LN1371GTR
D24
MBR0530
C12
1nF
TP7
C2
47nF
C38
0.47uF
Q6
MMBT3904TT1
D6
BAT54S
TP14
R30
200k
R22
4.7k
C15
0.1uF
R35
0
R33
0
L5
2mH
J2
J1
3
IN
1
ADJ/GND
2
OUT
4
OUT
U7
TLV1117-33IDCY
L4
7.80uH
L3
7.80uH
C29
D5
1N4148W
C28
0.1uF
1
2
3
4
U9
SFH6156-2
C9 0.1uF
C14
0.1uF
1
EN
2
C1+
3
V+
4
C1-
5
C2+
6
C2-
7
V-
8
R1IN
9
R1OUT
10
INVALID
11
T1IN
12
FORCEON
13
T1OUT
14
GND
15
VCC
16
FORCEOFF
U2
SN75C3221DBR
1
2
3
4
5 6
7
8
9
10
11
J9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
J4
1
VCC1
2
OUTA
3
INB
4
GND1
5
GND2
6
OUTB
7
INA
8
VCC2
U8
ISO7221CD
Q7
MMBT3904TT1
D25
BAT54S
C6
4.7nF
1
2
3
4
5
6
J8
Q1
2N7002
Q4
2N7002
1
VIN+
2
VAUX_P
3
-VAUX_-VIN
4
-VIN
5
GND
6
VIN_MONITOR
7
VAUX_S
DB-1
PWR050
SH2
R23
3.3k
TP5
C30
330pF
R42
1k
R8
1k
R82
1k
R81
1k
R80
1k
R32
0
R49
0
R77
0
R76
0
R75
0
R37
10k
R38
10k
R70
10k
R74
10k
R73
10k
1
1
1
1
1
1
1
1
1
SYNC_IN
LED_3
+12V_EXT
DPWM-1B
SCI_RX0
+3_3V
+3_3V
ISO_SCI_TX
ISO_SCI_RX
VAUX_P
+3_3V
DPWM-2B
+3_3V
+3_3V
V33D_ISO
V33D_ISO
VAUX_S_RTN
1
VAUX_S
+12V_EXT
+12V_EXT
VAUX_S
VAUX_S_RTN
LED_1
AC_DROP
RLY_CTRL
LED_1
SCI_TX1
SCI_RX1
LED_3
+3_3V
DPWM-0A
DPWM-2A
DPWM-3A
SCI_TX0
IIN_SENSE
VBUS_OV
AC_N
SCI_TX1
SCI_RX1
CT_1
ISENSE_SHUNT
SCI_RX0
VAUX_P_RTN
VAUX_P
VAUX_S
LED_2
SYNC_IN
LED_2
DPWM-1A
RLY_CTRL
AC_L
+12V_EXT
CT_1
AC_L
CT_2
AC_DROP
V33D_ISO
SCI_TX0
AC_NEU_PFC
AC_L_PFC
+12V_EXT
3
3
3
1
IPM
VBUS_SENSE
CT_2
BUS+
VAUX_P
VAUX_P_RTN
2
2
2
VAUX_S_RTN
1
1
AC_N
1
1
GND_EARTH
GND_EARTH
1
1
Schematics www.ti.com
4 Schematics
Figure 1. UCD3138PFCEVM-026 Schematic
6
Digitally Controlled Single-Phase PFC Pre-Regulator SLUU885B–March 2012–Revised July 2012
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Texas Instruments UCD3138 Specifications

General

Brand	Texas Instruments
Model	UCD3138
Category	Power Supply
Language	English