Cir
cu
it
-,
IC
descrip
tio
n
s and
list
of
a
bbr
eviat
io
n
s
EN 177
HDRW72
0/
0x
, DVDR72
5H/
0
x
9.
IC73
13 TEA 15
07 Ana
log Board, Power
Supply
Contr
o
l
BLOCK DIA
GRAM
a
ndbook, full pagewidth
SUPPLY
MANAGEMENT
internal
supply
UVLO
start
M-level
VCC
1
2
3
GND
S1
CTRL
FREQUENCY
CONTROL
VOLTAGE
CONTROLLED
OSCILLATOR
LOGIC
LOGIC
OVER-
VOLTAGE
PROTECTION
OVERPOWER
PROTECTION
short
winding
soft
start
S2
OVER-
TEMPERATURE
PROTECTION
S
Q
R
UVLO
Q
MAXIMUM
ON-TIME
PROTECTION
POWER-ON
RESET
−
1
VALLEY
TEA1507
100 mV
clamp
DRIVER
START-UP
CURRENT SOURCE
0.75 V
0.5 V
5
Isense
6
DRIVER
MGU230
4
DEM
8
DRAIN
7
HVS
n.c.
OCP
LEB
blank
Iss
2.5 V
burst
detect
Fig.2 Block diagram.
Summary of Contents for DVDR725H
Page 148: ...EN 148 HDRW720 0x DVDR725H 0x 7 Circuit Diagrams and PWB Layouts ...
Page 171: ...Circuit IC descriptions and list of abbreviations EN 171 HDRW720 0x DVDR725H 0x 9 Figure 9 11 ...
Page 172: ...Circuit IC descriptions and list of abbreviations EN 172 HDRW720 0x DVDR725H 0x 9 Figure 9 12 ...
Page 193: ...Circuit IC descriptions and list of abbreviations EN 193 HDRW720 0x DVDR725H 0x 9 ...