GFPS for High Power Applications
Display & Computing - CRT Monitor - CRT TV - Projection TV - LCD TV / PDP - Silver Box - NoteBook Adaptor
• 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
• 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 : FSCQ-Series– Silver Box/LCD TV : FSD1000
Device
Function Protection Option
PKGVdmax
(V)
Ipeak
(A)
Pin(max)(1)
85-265VAC
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 under1watt stand by power consumption
Selection Guide for C-TV
Compact and cost effective design with FPS
UC3842
Comp Vref
RtCt
Isense
Vfb Vcc
Out
GND
ACInput
Vo
Soft start
frequency setting
Current sensing
MOSFET drive
PWM controller
MOSFET FPS includesFPS includes SenseFETSenseFET PWM controllerPWM controllerOptimized Gate drive circuitOptimized Gate drive circuitAdditional function Additional function - Quasi-resonant switching- Quasi-resonant switching - Soft start- Soft start - Burst operation- Burst operationProtection functionProtection function - Over load protection- Over load protection - Over voltage protection- Over voltage protection - Over current protection- Over current protection - Pulse by Pulse current limit- Pulse by Pulse current limit - Over temperature protection- 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
9V/15V
3 1
2
4
AuxiliaryVref Main bias
S
Q
Q
R
OSC
Vcc
Vref
Idelay
IFB
VSD
TSD
Vovp
Sync
Vocp
S
Q
Q
R
R
2.5R
Vcc good
Vcc Drain
FB
GND
AOCP
Gatedriver
Vcc good
LEB600ns
PWM
Soft start
Internalbias
Normaloperation
VBurst
Vref
Ib
Vref
Ibufb
Burst modeController
Normal operation Burst Switching
5Sync
Threshold
Quasi-resonant(QR) switching
controller
+
-
+
-
S
Q
Q
R
Power Reset
4.6V/2.6V : Normal QR3.0V/1.8V : Extended QR
fs
QRC Control
Burst Mode Operation
TSD
OLP
OVP
AOCP
Latch Mode
Current Mode Control
Auto Restart Mode
SenseFET
Burst operation - Output drop circuit
Picture ON
MicomLinearRegulator
VO2
VO1 (B+)
KA431R2
R1
R3
Rbias
RD
RFCF D1Q1
A
CR
Dz
- Normal mode : Vo1 (B+) is regulated
- Standby mode : Vo2 is regulated
Power Consumptions in standby mode
ViIo
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
Minimum voltage of linear regulator = 8.0VB+ output : open
Pin Compatible : TO-220F-5L & TO-3PF-7L
TO-3PF-7LTO-220F-5L
2.54mm
1.5mm
1.5mm
1.5mm 1.5mm 1.5mm
2.54mm
1.5mm
1.5mm2.54mm
3.18mm 3.18mm
S
D Vcc
F/B
Sync
S
D Vcc
F/B
NCSync
NC
Same pin layout
Generation KA5Q-Series FSCQ-Series FSCQ Advantages
Control MethodQRC/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 levelLower standby power but MCU
reset must be considered
Standby power Under 2W Under 1W
Soft start None 20mSReducing overshoot voltage
on Power MOSFET & secondary side diode
SenseFET Q-FET S-FET
PKG TO220F-5L/TO3PF-5L TO220F-5L/TO3PF-7LThe one PCB can be used
regardless of different PKG
Line-up
Status
KA5Q0740RT
KA5Q0565RT
KA5Q0765RTH
KA5Q12656RTH
KA5Q1265RFH
KA5Q1565RF
FSCQ0765RT
FSCQ1265RT
FSCQ1565RT
FSCQ1565RP
FSCQ2270RP
FPS Comparison for Color TV
Energy Recovery Block
MCU
& Logic
DATA
Clock
H Sync
V Sync PANEL
Energy Recovery Block
X Sustain Block
Y Sustain Block
Next page for more detail
Address Driver
Power Supply ・ FPSTM
・ PFC/PWM
PDP Power Supply - System Block Diagram
PFC VSUSTAIN VSET / VERASE / VSCAN Stand by VADDRESS/ VMULTI / VAUDIOAMP
A B C D E F
ML4824(Combo)+FQA28N50/24N50*2 FQL40N50+ISL9R1560
FFPF10U60DNFFPF05U60DNRURP860CC
FFPF10U60DNFFPF05U60DNKA5L0380RFSDx0365RNFSDM0565R
FFPF10U60SFFPF05U60DNRURP860
KA5L0380RFSDx02/0365RN
FS7M0680FS7M0880
ML4810+FET(PFC only)ML4822(ZVT)+FET(PFC only)
EMI
FILTERPFC VSUSTAIN
VSET
KA5L0380R
VMULTI
FS7M0880
+100V / 20W
VADDRESS
FS7M0880
+3.3V, +6V +12V, +15V, +33V
+70V / 150W
400V
VERASE
KA5L0380R+110V / 20W
+90V / 30W
+5V / 3.5W
+190V(+85V)
Boost420W
Two switch Forward
Flyback
Flyback
Flyback
Flyback
Flyback
Flyback / 80W
+180V / 240W
VSCAN
KA5L0380R
ML4824(Combo)
Flyback
+18V / 40WVAUDIO AMP
FS7M0880
Stand by
KA5L0380R
AB
C
D
E
F
•Focus device
Fly back, Forward and half bridge topology (400W~600W)
Low standby power, under 1W required
Active PFC required (Combo or PFC only)
PDP Power Supply - Block Diagram