Harman Kardon MAS 100-110 (serv.man7) Service Manual ▷ View online
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SHENZHEN TUOFENG
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 33 of 57
Product Specification
Power Factor Controller
SG6961
© System General Corp.
www.sg.com.tw • www.fairchildsemi.com
Version 1.3.1 (IRO33.0028.B6)
September 24, 2007
FEATURES
Boundary Mode PFC Controller
Low Input Current THD
Controlled On-Time PWM
Zero-Current Detection
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking Instead of RC Filtering
Low Start-up Current (10µA Typical)
Low Operating Current (4.5mA Typical)
Feedback Open-Loop Protection
Programmable Maximum On-Time (MOT)
Output Over-Voltage Clamping Protection
Clamped Gate Output Voltage 16.5V
Low Input Current THD
Controlled On-Time PWM
Zero-Current Detection
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking Instead of RC Filtering
Low Start-up Current (10µA Typical)
Low Operating Current (4.5mA Typical)
Feedback Open-Loop Protection
Programmable Maximum On-Time (MOT)
Output Over-Voltage Clamping Protection
Clamped Gate Output Voltage 16.5V
APPLICATIONS
Electric Lamp Ballasts
AC-DC Switching Mode Power Converter
Open-Frame Power Supplies and Power Adapters
Flyback Power Converters with ZCS/ZVS
AC-DC Switching Mode Power Converter
Open-Frame Power Supplies and Power Adapters
Flyback Power Converters with ZCS/ZVS
DESCRIPTION
The SG6961 is an 8-pin boundary mode PFC controller IC
intended for controlling PFC pre-regulators. The SG6961
provides a controlled on-time to regulate the output DC
voltage and achieve natural power factor correction. The
maximum on-time of the external switch is programmable
to ensure safe operation during AC brownouts. An
innovative multi-vector error amplifier is built in to
innovative multi-vector error amplifier is built in to
provide rapid transient response and precise output
voltage clamping. A built-in circuit disables the controller
if the output feedback loop is opened. The start-up current
is lower than 20µA and the operating current is under
is lower than 20µA and the operating current is under
4.5mA. The supply voltage can be up to 20V, maximizing
application flexibility.
TYPICAL APPLICATION
ZCD
MOT
GND
CS
GD
INV
COMP
VCC
SG6961
VAC
Vo
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 34 of 57
Product Specification
Power Factor Controller
SG6961
© System General Corp.
www.sg.com.tw • www.fairchildsemi.com
Version 1.3.1 (IRO33.0028.B6)
September 24, 2007
MARKING DIAGRAMS PIN CONFIGURATION
ORDERING INFORMATION
Part Number
Pb-Free
Package
SG6961SZ
8-Pin SOP
SG6961DZ
8-Pin DIP
PIN DESCRIPTIONS
Pin No.
Symbol
Description
1 INV
Inverting input of the error amplifier. INV is connected to the converter output via a resistive divider. This pin
is also used for over-voltage clamping and open-loop feedback protection.
is also used for over-voltage clamping and open-loop feedback protection.
2 COMP
The output of the error amplifier. To create a precise clamping protection, a compensation network between
this pin and GND is suggested.
this pin and GND is suggested.
3 MOT
A resistor from MOT to GND is used to determine the maximum on-time of the external power MOSFET. The
maximum output power of the converter is a function of the maximum on-time.
maximum output power of the converter is a function of the maximum on-time.
4 CS
Input to the over-current protection comparator. When the sensed voltage across the sense resistor reaches
the internal threshold (0.82V), the switch is turned off to activate cycle-by-cycle current limiting.
the internal threshold (0.82V), the switch is turned off to activate cycle-by-cycle current limiting.
5 ZCD
Zero Current Detection. This pin is connected to an auxiliary winding via a resistor to detect the zero crossing
of the switch current. When the zero crossing is detected, a new switching cycle is started. If it is connected
to GND, the device is disabled.
of the switch current. When the zero crossing is detected, a new switching cycle is started. If it is connected
to GND, the device is disabled.
6 GND
The power ground and signal ground. Placing a 0.1µF decoupling capacitor between the VCC
and GND pins
is recommended.
7
GD
Totem-pole driver output to drive the external power MOSFET. The clamped gate output voltage is 16.5V.
8
VCC
Driver and control circuit supply voltage.
T
: D=DIP, S=SOP
P :
Z=Lead Free + ROHS
Compatible
Null=regular package
XXXXXXXX
: Wafer Lot
Y
: Year;
WW
: Week
V
: Assembly Location
CS
MOT
VCC
GD
GND
ZCD
INV
COMP
SG6961TP
XXXXXXXXYWWV
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 35 of 57
©2003 Fairchild Semiconductor Corporation
April 2003
IS
L9R1560P
F
2
ISL9R1560PF2 Rev. A1
ISL9R1560PF2
15A, 600V Stealth™ Diode
General Description
The ISL9R1560PF2 is a Stealth™ diode optimized for
low loss performance in high frequency hard switched
applications. The Stealth™ family exhibits low reverse
recovery current (I
low loss performance in high frequency hard switched
applications. The Stealth™ family exhibits low reverse
recovery current (I
RM(REC)
) and exceptionally soft
recovery under typical operating conditions.
This device is intended for use as a free wheeling or
boost diode in power supplies and other power
switching applications. The low I
boost diode in power supplies and other power
switching applications. The low I
RM(REC)
and short t
a
phase reduce loss in switching transistors. The soft
recovery minimizes ringing, expanding the range of
conditions under which the diode may be operated
without the use of additional snubber circuitry. Consider
using the Stealth™ diode with an SMPS IGBT to
provide the most efficient and highest power density
design at lower cost.
recovery minimizes ringing, expanding the range of
conditions under which the diode may be operated
without the use of additional snubber circuitry. Consider
using the Stealth™ diode with an SMPS IGBT to
provide the most efficient and highest power density
design at lower cost.
Formerly developmental type TA49410.
Features
• Soft Recovery . . . . . . . . . . . . . . . . . . . . . . t
b
/ t
a
> 1.2
• Fast Recovery. . . . . . . . . . . . . . . . . . . . . . . t
rr
< 30ns
• Operating Temperature. . . . . . . . . . . . . . . . . . 150
o
C
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . 600V
• Internally Isolated . . . . . . . . . . . . . . . . . . . . . . . . 1kV
• Avalanche Energy Rated
Applications
• Switch Mode Power Supplies
• Hard Switched PFC Boost Diode
• UPS Free Wheeling Diode
• Motor Drive FWD
• SMPS FWD
• Snubber Diode
Device Maximum Ratings
T
C
= 25°C unless otherwise noted
Symbol
Parameter
Ratings
Units
V
RRM
Repetitive Peak Reverse Voltage
600
V
V
RWM
Working Peak Reverse Voltage
600
V
V
R
DC Blocking Voltage
600
V
I
F(AV)
Average Rectified Forward Current (T
C
= 25
o
C)
15
A
I
FRM
Repetitive Peak Surge Current (20kHz Square Wave)
30
A
I
FSM
Nonrepetitive Peak Surge Current (Halfwave 1 Phase 60Hz)
200
A
P
D
Power Dissipation
30
W
E
AVL
Avalanche Energy (1A, 40mH)
20
mJ
T
J
, T
STG
Operating and Storage Temperature Range
-55 to 150
°C
T
L
Maximum Temperature for Soldering
Leads at 0.063in (1.6mm) from Case for 10s
300
°C
CAUTION: Stresses above those listed in “Device Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
K
A
CATHODE
ANODE
TO-220F
Package
Symbol
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 36 of 57
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