Harman Kardon MAS 100-110 (serv.man7) Service Manual ▷ View online
© 2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSFR series • Rev.1.0.5
FSFR-Series — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter
Application Circuit Diagram
R
sense
Control
IC
C
DL
V
CC
V
DL
LVcc
RT
CON
CS
SG
PG
V
CTR
HV
CC
Cr
L
lk
Lm
Ns
Vo
D1
D2
R
F
C
F
Np
Ns
KA431
V
IN
Figure 1. Typical Application Circuit (LLC Resonant Half-Bridge Converter)
Block Diagram
1.5 s
P
Figure 2. Internal Block Diagram
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 29 of 57
© 2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSFR series • Rev.1.0.5
FSFR-Series — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter
Pin Configuration
1 2 3 4 5 6 7 8 9 10
V
DL
CON
R
T
CS
SG
PG
LVcc
HVcc
V
CTR
Figure 3. Package Diagram
Pin Definitions
Pin #
Name
Description
1 V
DL
This is the drain of the high-side MOSFET, typically connected to the input DC link voltage.
2 CON
This pin is for enable/disable and protection. When the voltage of this pin is above 0.6V, the
IC operation is enabled. When the voltage of this pin drops below 0.4V, gate drive signals
for both MOSFETs are disabled. When the voltage of this pin increases above 5V,
protection is triggered.
IC operation is enabled. When the voltage of this pin drops below 0.4V, gate drive signals
for both MOSFETs are disabled. When the voltage of this pin increases above 5V,
protection is triggered.
3 R
T
This pin programs the switching frequency. Typically, an opto-coupler is connected to
control the switching frequency for the output voltage regulation.
control the switching frequency for the output voltage regulation.
4 CS
This pin senses the current flowing through the low-side MOSFET. Typically, negative
voltage is applied on this pin.
voltage is applied on this pin.
5
SG
This pin is the control ground.
6
PG
This pin is the power ground. This pin is connected to the source of the low-side MOSFET.
7 LV
CC
This pin is the supply voltage of the control IC.
8 NC
No
connection.
9 HV
CC
This is the supply voltage of the high-side gate-drive circuit IC.
10 V
CTR
This is the drain of the low-side MOSFET. Typically, a transformer is connected to this pin.
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 30 of 57
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 31 of 57
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 32 of 57
Click on the first or last page to see other MAS 100-110 (serv.man7) service manuals if exist.