Transcript PowerPoint 프레젠테이션

Fairchild Power Switch
Sep, 2004
Power Conversion
GFPS for High Power Applications
•
•
Power Range : 100 ~ 300Watt
System Configuration
–
–
–
–
•
Qusi-Resonant with multi-output for CTV
Sync Frequency with multi output for CRT Monitor
Forward or Half bridge with multi output for PC
Multi power stage for PDP/ LCD TV
Development Direction
– Low Stand by requirement
Display & Computing
- CRT Monitor
- CRT TV
- Projection TV
- LCD TV / PDP
- Silver Box
- NoteBook Adaptor
• CTV/Monitor - under 1.0Watt
• PC SMPS
- under 1.0Watt @ Po=0.5Watt
– High Efficiency requirement
• 300Watt * 90% efficiency  30watt power loss
• Need to reduce switching loss(soft switching)
 3Chip 1Pkg for resonant solution
•
FSC Solution
– QRC Applications
– Silver Box/LCD TV
: FSCQ-Series
: FSD1000
Selection Guide for C-TV
Function
Device
Vdmax
(V)
Ipeak
(A)
Pin(max)(1)
85-265VAC
Protection Option
PKG
Fopr
(KHz)
Rds(on)
Max ()
OLP
OCL
OVP
TSD
High Power Quasi-Resonant Converter Applications
Color TV
KA5Q0565RT
650
3.5
70
QRC
2.2
YES
YES
YES
YES
TO-220F-5L
KA5Q0740RT
400
5.0
100
QRC
1.1
YES
YES
YES
YES
TO-220F-5L
KA5Q0765RTH
650
5.0
100
QRC
1.6
YES
YES
YES
YES
TO-220F-5L
KA5Q12656RTH
650
6.0
150
QRC
0.9
YES
YES
YES
YES
TO-220F-5L
KA5Q1265RFH
650
8.0
200
QRC
0.9
YES
YES
YES
YES
TO-3PF-5L
KA5Q1565RF
650
11.5
270
QRC
0.65
YES
YES
YES
YES
TO-3PF-5L
FSCQ0765RT
650
5.0
100
QRC
1.6
YES
YES
YES
YES
TO-220F-5L
FSCQ1265RT
650
7.0
150
QRC
0.90
YES
YES
YES
YES
TO-220F-5L
FSCQ1565RT
650
8.0
200
QRC
0.65
YES
YES
YES
YES
TO-220F-5L
FSCQ1565RP**
650
11.5
250
QRC
0.65
YES
YES
YES
YES
TO-3PF-7L
FSCQ2270RP**
650
14.0
300
QRC
0.38
YES
YES
YES
YES
TO-3PF-7L
** Under Development
Green FPS provide under
1watt stand by power consumption
Compact and cost effective design with FPS
Vo
MOSFET
AC
Input
MOSFET drive
Current sensing
PWM controller
UC3842
frequency
setting
Soft start
Comp
Vref
Vfb
Vcc
Isense
Out
RtCt
GND
FPS includes
SenseFET
PWM controller
Optimized Gate drive circuit
Additional function
- Quasi-resonant switching
- Soft start
- Burst operation
Protection function
- Over load protection
- Over voltage protection
- Over current protection
- Pulse by Pulse current limit
- Over temperature protection
Features and Advantages of FSCQ-series
• Features
- Optimized for Quasi-resonant converter (Low EMI and High Efficiency)
- Fully avalanche rated and 100% tested SenseFET
- Pulse-by-pulse current limiting
- Improved reliability through various protection functions
: Over voltage, Over load, Over current, Thermal shutdown
- Advanced Burst operation for low power consumption in standby (<1W)
- Internal Soft start function (20ms)
- Extended Quasi-resonant operation for wide operation range
- Reduced startup and operating currents
• Advantages
- Reduced board space (simple & compact circuit design)
- Decreased assembly time and field failure rate  Enhanced
productivity
FSCQ-series Functional Block Diagram
QRC Control
Sync
5
Vcc
3
Drain
1
+
Threshold
Quasi-resonant
(QR) switching
controller
-
+
fs
-
Burst Mode Operation
9V/15V
Soft start
4.6V/2.6V : Normal QR
3.0V/1.8V : Extended QR
Burst mode
Controller
VBurst
Normal operation
Vref
Ibufb
IFB
Main bias
Normal
operation
Vref
Internal
bias
Ib
Idelay
FB
Auxiliary
Vref
OSC
Burst Switching
Vref
Vcc
Vcc good
SenseFET
PWM
4
2.5R
OLP
S
Q
R
Q
Gate
driver
R
LEB
600ns
Current Mode Control
VSD
Sync
S
Vovp
Vcc good
AOCP
Q
AOCP
Q
R
OVP
S
Q
2 GND
TSD
Q
R
Auto Restart Mode
TSD
Power Reset
Latch Mode
Vocp
Burst operation - Output drop circuit
VO2
Linear
Regulator
VO1 (B+)
RD
R1
C
KA431
A
Normal mode : Vo1 (B+) is
regulated
-
Standby mode : Vo2 is
regulated
Micom
Dz
Rbias
CF
-
RF
D1
R3
Q1
Picture ON
R
R2
Power Consumptions in standby mode
Minimum voltage of linear regulator = 8.0V
B+ output : open
Io
Vi
0 mA
10 mA
20 mA
30 mA
40 mA
50 mA
90 Vac
0.13 W
0.30 W
0.56 W
0.68 W
0.76 W
0.86 W
120 Vac
0.13 W
0.41 W
0.59 W
0.76 W
0.93 W
0.99 W
150 Vac
0.17 W
0.42 W
0.58 W
0.77 W
0.94 W
1.07 W
180 Vac
0.22 W
0.45 W
0.62 W
0.79 W
0.95 W
1.08 W
210 Vac
0.26 W
0.48 W
0.64 W
0.79 W
0.96 W
1.10 W
240 Vac
0.31 W
0.52 W
0.68 W
0.85 W
1.02 W
1.17 W
270 Vac
0.36 W
0.57 W
0.75 W
0.91 W
1.07 W
1.24 W
Pin Compatible : TO-220F-5L & TO-3PF-7L
Same pin layout
1.5mm
S
1.5mm
F/B
1.5mm
S
F/B
NC
3.18mm
D
2.54mm
Vcc
Sync
1.5mm
3.18mm
D
2.54mm
Vcc
Sync
1.5mm
NC
2.54mm
1.5mm
TO-220F-5L
1.5mm
TO-3PF-7L
FPS Comparison for Color TV
Generation
KA5Q-Series
FSCQ-Series
FSCQ Advantages
Control Method
QRC/PSR
 High Efficiency/Low EMI
QRC with high frequency limit
 High Efficiency/Low EMI
Temp. of device can be lower
at high line input
Start-up current
/Operation current
Max. 200uA
/ 18mA(always constant)
Max. 50uA
/ 6mA(reduced in burst mode)
Lower standby power
Output regulation
in standby
By Vcc control
By Feedback control
Just difference of method
Output voltage
drop in standby
Up to half
Any level
Lower standby power but MCU
reset must be considered
Standby power
Under 2W
 Under 1W
Soft start
None
20mS
SenseFET
Q-FET
S-FET
PKG
TO220F-5L/TO3PF-5L
TO220F-5L/TO3PF-7L
Line-up
Status
KA5Q0740RT
KA5Q0565RT
KA5Q0765RTH
KA5Q12656RTH
KA5Q1265RFH
KA5Q1565RF
FSCQ0765RT
FSCQ1265RT
FSCQ1565RT
FSCQ1565RP
FSCQ2270RP
Reducing overshoot voltage
on Power MOSFET &
secondary side diode
The one PCB can be used
regardless of different PKG
PDP Power Supply - System Block Diagram
Address Driver
Clock
Y Sustain Block
X Sustain
Block
DATA
MCU
V Sync
PANEL
& Logic
H Sync
Power Supply
Energy
Recovery Block
・ FPSTM
・ PFC/PWM
Next page for more detail
Energy
Recovery Block
PDP Power Supply - Block Diagram
A
EMI
FILTER
ML4824(Combo)
400V
PFC
B
+190V
(+85V)
VSET
KA5L0380R
Flyback
VSUSTAIN
Two switch
Forward
Boost
420W
VERASE
KA5L0380R
Flyback
VSCAN
KA5L0380R
Flyback
E
Stand by
KA5L0380R
Flyback
 Fly back, Forward and half
bridge topology (400W~600W)
 Low standby power, under 1W
required
 Active PFC required (Combo or
PFC only)
PFC
VSUSTAIN
A
B
ML4824(Combo)
+FQA28N50/24N50*2
FQL40N50
+ISL9R1560
ML4810+FET(PFC only)
ML4822(ZVT)+FET(PFC
only)
FFPF10U60DN
FFPF05U60DN
RURP860CC
+180V / 240W
C
+100V / 20W
D
+110V / 20W
+90V / 30W
+5V / 3.5W
F
VADDRESS
FS7M0880
Flyback
VMULTI
FS7M0880
Flyback / 80W
VAUDIO AMP
FS7M0880
Flyback
+70V / 150W
+3.3V, +6V
+12V, +15V, +33V
+18V / 40W
VSET / VERASE / VSCAN
C
FFPF10U60DN
FFPF05U60DN
KA5L0380R
FSDx0365RN
FSDM0565R
D
FFPF10U60S
FFPF05U60DN
RURP860
Stand by
VADDRESS/ VMULTI /
VAUDIOAMP
E
F
KA5L0380R
FSDx02/0365RN
FS7M0680
FS7M0880
•Focus device
Power Solution for PDP
ML4824(Combo)+FET
EMI
FILTER
PFC
ML4821
380~
400V VSUSTAIN
KA7500C+FET
Stand by
KA5M0280R
200W
+180V
VADDRESS
FS7M0880
120W
+60V
VMULTI
FS7M0680
70~90W
+3.3V
+5V
+12V
+15V
others
Logic Board
Image Board
Sound Board
3W
+5V