Description 1-4 – Texas Instruments UCC38500EVM User Manual
Page 10
Description
1-4
Figure 1−1. DM38500 Evaluation Module Application Schematic
UDG−00094
12
10
9
5
2
6
11
13
7
8
4
3
1
16
17
15
18
19
14
20
OVP/ENBL
VSENSE
V
AOUT
ISENSE
MOUT
CAOUT
IAC
VFF
PKLIMIT
VREF
GT1
GT2
VCC
CT
RT
GND
PWRGND
SS2
VERR
ISENSE2
UCC38500
V
REF
Q5
R25
V
CC
R7
R6
GT1
GT2
D10
D9
C27
PKLIMIT
C28
R17
C19
C22
R28
C25
R23
R34
R21
R22
R33
R20
C2
R15
R5
L1
D3
D1
GT1
R14
R29
PKLIMIT
R19
C26
V
REF
R18
R24
C29
C30
ISENSE2
GT2
R13
R2
C5
PWR
GND
GT2
12 V
100 W
+
−
L2
T1
Q2
Q1
Q3
D1
1
VA
C
85−265V
RMS
D6
D4
T2
D8
U4
C7
SGND
SGND
SGND
PGND2
PGND
PGND
PGND
PGND
SGND
PGND
D5
D7
C12
C20
L1
V
CC
BIAS
CIRCUIT
V
CC
V
CC
BIAS
CIRCUIT
PGND
C23
PGND2
PGND2
R26
D14
R36
R16
C14
R35
R32
R27
D13
R31
C8
R30
R10
R12
R1
1
C21
C16
C3
PGND
C24
D2
R1
C4
C18
R4
D15
D12
D16
AC−N
AC−L
OUT
+
OUT
−
V
REF
R3
R39
C13
ISENSE2
C17
H1
1A
V1
3
2
1
4
5
6
U3
SGND
C6
C38
HIGH VOL
T
AGE
−
SEE EVM W
ARNINGS
AND RESTRICTIONS
HIGH
TEMPERA
TURE
−
SEE EVM W
ARNINGS
AND RESTRICTIONS
HIGH VOL
T
AGE
−
SEE EVM W
ARNINGS
AND RESTRICTIONS
HIGH
TEMPERA
TURE
−
SEE EVM W
ARNINGS
AND RESTRICTIONS
Note: High-Voltage component. See EVM Warnings and Restrictions at the back of this document.
Note: High-Temperature component. See EVM Warnings and Restrictions at the back of this document.