Transcript Slide 1

Fairchild Power Switch(FPS)
Charger / Adapter / Aux. power
Power Conversion
www.fairchildsemi.com
Introduction of Fairchild Power
Switch(FPS)
 Optimal Solution for Off-Line Switch Mode Power Supplies (SMPS)
SMPS Cost Down
1 Package Product
 Reduced Board Space
 Increased Reliability
PWM IC
MOSFET
External Devices
Additional Functions
2
Structures of FPS
 Optimal Solution for Off-Line Switch Mode Power Supplies (SMPS)
Snubber
Circuit
+
+
Load
+
Fairchild Pow er Sw itch
Control IC
Feedback
Circuit
• Reduced Board Space
• Increased Reliability
+
3
FPSTM Target Applications
Auxiliary power &
PC SMPS
FSDH321Z
FSDM0170RNB
FSDM0270RNB
FSDM0370RNB
VCR, SVR, STB & DVCD
FSDx321
FSDL0170RNB
FSDx0265RNB
FSDx0365RNB
FSCQ0565RT
FSCQ0765RT Color TV
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
Power
Supply
Printer & OA
FSD200B
FSG500
FSD210B
FSD211
PDA
Mobile phone
FSDM0465RB
FSDM0565RB
FSCM0565R
FSDM07652RB
FSCM0765R
FSDM1265RB
Adaptor for
Camcorder
FSES0765RG
FS8S0765RCB
FS8S0965RCB
FS6S1265RE
FS6S1565RB
MP3
Note PC Adaptor
Monitor
4
Features and Advantages
•
•
Features
–
Optimal Solution for Off-Line SMPS
–
Fully Avalanche rated and 100% tested SenseFET for 2chip based FPSTM
–
Pulse-by-Pulse Current Limiting
–
Improved Reliability through Various Protection Functions
(Over Voltage, Over Load, Abnormal Over Current, Thermal Shutdown)
–
Precision Fixed Operating Frequency (50/70/100KHz)
–
Ability to synchronize with external signal helps eliminate screen noise (FS6S, FS8S series)
–
Quasi Resonant Converter for low EMI and high efficiency (KA5Q series)
–
Auto Burst Mode Operation for low power consumption in standby mode
–
Built in Soft Start Function to reduce start up stress in transformer
–
Built in start up switch to reduce external component and power consumption
–
Frequency modulation to improve EMI performance
Advantages
–
Reduced Board space (Simple & Compact Circuit Design)
–
Decreased Line Process and Field Failure Rate  Enhanced Productivity
–
Broad Application Coverage with Extensive Expertise
 Blue line shows added features of green FPSTM
5
FSD200B / FSD210B
2nd generation 1Chip FPS
□ Features
 Single Chip 700V SenseFET Power Switch
 Precision Fixed Operating Frequency with Frequency Modulation
 134kHz±4kHz
GND
 Internal Start-up Switch & Soft Start up
 Under Voltage Lockout with Hysterisis
GND
 8.7V/6.7V (FSD210), 7V/6V (FSD200)
GND
 Over Load Protection (OLP)
 Auto-restart mode
VFB
□ Advantages
 Low Power Consumption in Standby Mode (Burst Operation)
 0.10W under @240Vac (FSD210)
 Minimum External Components
 Without bias winding, resistor, diode (FSD200)
6
Vstr
Drain
Vcc
Block Diagram of FSD200B
Vstr
Built-in Start up.
Vcc 7
1
HV/REG
7V
Voltage
Ref.
UVLO
7 Drain
ON/OFF
INTERNAL
BIAS
Frequency Modulation
Frequency
Modulation
5uA
Vck
OSC
250uA
Voltage Mode
Control
Vfb 4
SFET
DRIVER
S
Q
R
BURST
VBURST
LEB
Burst Control
OLP
Iover
Protection
Rsense
Vth
Reset
S
VSD
R
TSD
UVLO Reset
(Vcc<6V)
Q
Peak Current
Limit
S/S
3mS
Soft Start
1, 2, 3
7
GND
Block Diagram of FSD210B
Vstr
Built-in Start up.
8
Vcc < 6.7V
Vcc 5
Voltage
Ref.
UVLO
Internal
Bias
7 Drain
Vcc > 8.7V
Frequency Modulation
Frequency
Modulation
5uA
Vck
OSC
250uA
Voltage Mode
Control
Vfb 4
SFET
DRIVER
S
Q
R
BURST
VBURST
LEB
Burst Control
OLP
Reset
Protection
Iover
S Q
VSD
R
TSD
UVLO Reset
(Vcc<6.7V)
Rsense
Vth
Peak Current
Limit
S/S
3mS
Soft Start
1, 2, 3
8
GND
System Circuit Diagram
Low cost EMI filter by
Frequency Modulation
R6
R7
4.7M 1/4W 4.7M, 1/4W
L1 330uH
Fuse
AC
D1
1N4007
D2
1N4007
AC
D3
1N4007
C1
4.7UF 400V
C7
330uF 16V
C3
102k 1kV
R4
47k
Vo
3.9uH
SB260
R3
47k
C2
4.7uF 400V
L3
R8
560
R2 0
D4
1N4007
R9
51
5V
C8
330uF 16V
R10
2.2K
U3
H11A817A
C9 470nF
L2
D5
UF4007
open
R11 0
U2
TL431
R12
2.2K
Vcc
D6
5
4
H11A817A
R5
.
0
UF4004 39R
C5
33uF 50V
3
GND
Vf b
GND
GND
U1
FSD210
Vstr
1
8
Drain
7
C10
4.7uF 50V
2
1W, 10R
0
D7
TX1
R1 4.7k
FSD210/200 does not require Ycap components in blue block
C6 152M-Y , 250Vac
C4
100nF
FSD200 does not require
components in red block
9
FSDH Series Vstr operating
Vstart
+
1
Snubber
Circuit
Vstr
Drain
17V
Vdrain
2mA
Fairchild Power Switch
Control IC
Vcc
+
Istart
2
8.7V
IC Operating
1
10
2
Vcc
Stand-by Power Loss Test Result with
FSD210B
Stand-by Power Loss at Output No Load Condition
VIN,AC
Power Loss (No Load)
85 [VAC]
53 [mW]
110 [VAC]
55 [mW]
220 [VAC]
78 [mW]
230 [VAC]
79 [mW]
240 [VAC]
79 [mW]
265 [VAC]
85 [mW]
Remark
SAMSUNG TA CHARGER SET
(MADE BY DONGYANG:KR)
TEST EQUIPMENT :
YOKOGAWA WT210
TEST CONDITION :
Vo=5.1V, No laod
11
FSD210B Demo Board – No Y-cap
R11
CY11
AC
2R4 2W
OPEN
L11 330uH
TX11
Vo
8
1
R12
4.7K
D12
1N4007
R14
47K
+ C21
C13
102K 1KV
+
AC
+
C11
4.7uF 400V
D14
1N4007
2
C12
4.7uF 400V
+ C22
(5.1V/0.6A)
330uF 16V
R22
56
330uF 16V R21
560
R15
R23
2.2K
6,7
47K
R13
0
L12 Open
C23
470nF
IC21
+ C24
D15
UF4007
4.7uF 50V
R24
0
FOD2741B
D16
5
Vcc
6
.
7
Drain
Vstr
8
2
R25
2K
U11
FSD210
1N4148
R16
3
Q21
KN2222
39
3
Vfb
4
GND
3
GND
GND
2
ZD12
OPEN
+ C15
R29
150
R28
300
2
1
D13
1N4007
L21
3.9uH
1
D11
1N4007
D21
SB260
1
TH11
4
10KD-5
33uF 50V
R30
3R0
R26
0
R27
510
R31
3R0
R32
3R0
C14
ZD11
22nF 50V
OPEN
0
.
IC21
FOD2741B
12
FSD210B Demo Board – No Y-cap
@ 220VAC & Neutral, 5.1Vout/8ohm load
@ 220VAC & Live, 5.1Vout/8ohm load
• Standby power
• Test equipment : Yokogawa PZ 4000
– 240V : 0.06W
– 265V : 0.07W
13
Burst Operation & Power Loss
Device
FSD210B
(with bias
winding)
FSD200B
(without
bias
winding)
Vin,ac [Vac]
Pin [mW] @ Load [mA], Vout [5V]
0mA
20mA
40mA
60mA
80mA
100mA
85
53
223
394
519
682
842
110
55
229
395
553
692
850
180
70
267
450
630
805
987
240
79
290
476
653
825
1010
265
85
305
480
668
845
1020
85
188
352
532
680
815
928
110
207
400
576
740
895
1036
180
273
488
672
865
1082
1300
240
342
577
752
932
1132
1310
265
375
617
795
980
1150
1370
 FSD210 can meet low standby power under 0.1W at 265Vac & no load
 Standby power of FSD200 is higher because it’s internal start-up block connected to
rectified AC line consumes power more
 FSD200(rectified AC line max 375Vdc*Iop) vs. FSD210(Vcc bias winding max 20V*Iop)
14
Burst Operation Waveforms
#1 Drain, #3 Vfb, #4 Idrain
Vo
Voset
VFB
Hysteresys
Burst operation @ 85Vac,
No load
Ids
Vds
time
Burst operation @ 265Vac,
No load
15
Features:
Built in Start up with Soft Start
I(A)
• The built in startup provides trickle current until the
supply reaches a present supply voltage threshold called
Vstart
3m S
0.3A
Iover
0.25A
0.2A
• Switching starts and the peak current is gradually
ratcheted up in fixed increments over a milliseconds
• This soft startup mechanism helps prevent high current
during startup from damaging the components in the SMPS
t
FSD2x0
Drain voltage
Drain current
Start up @ 265Vac
Start up @ 85Vac or short circuit
16
Frequency Modulation for EMI
◆ Frequency Modulation (FSD210)
Modulation Frequency = 268.8Hz
Period = 3.72mS
Step = 16 step(rising)+16 step(falling)
Maximum Switching Frequency = 141.8kHz (typ 138kHz)
Minimum Switching Frequency = 133.6kHz (typ 130kHz)
17
BUCK Converter Circuit with
FSD210B
Vcc
5
4
UF4004
GND
R2
110
D3(ZD)
1N759A
3
C1
4.7uF/400V
D2
Vf b
GND
GND
1
U1
FSD21x
Vstr
2
8
Drain
7
VINDC
R1 110
R
680K
C2
47nF/50V
C5
47uF 50V
Q1
KSP2222A
R3
750
D1
VOUT(12V/100mA)
L1
GND
1mH
UF4004
C4
1000uF 16V
R
8.2K
GND
0
18
FSDM311
 Features
BCDMOS controller + Strong Avalanche CFET
Built in Start up Circuit
Burst Mode Operation
Internal Soft-start Circuit
New 8DIP PKG for wide creepage
 Target Application
Max 8watt Charger with universal input range
Max 20watt auxiliary P/S for PC with 220V input
GND
DRAIN
Vcc
DRAIN
Vfb
DRAIN
NC
Vstr
8DIP
 Launching Schedule
Device
Code S
Datasheet
Sample
Demo B/D
App Note
FSDM311
now
final
now
now
now
19
Block Diagram of FSDM311
Vstr
Built-in Start up
Drain
6, 7, 8
5
UVLO < 7V
Vcc 2
Voltage
Ref.
UVLO
Internal
Bias
UVLO > 9V
Vck
OSC
5uA
PWM Voltage
400uA
DRIVER
Mode
S
Control
Vfb 3
SFET
Q
R
S/S
10mS
NC 4
LEB
Soft Start
Reset
OCP
Protection
4.5V
Vth
OLP
OVP
S
R
Min.20V
TSD
His 60
Q
Rsense
Peak Current
Limit
/4
Auto Restart
20
1
GND
FSDM311 Application
C6
152M-Y , 250V ac
R6
R7
4.7M 1/4W 4.7M, 1 /4W
L1 330uH
Fuse
R1 4.7k
AC
D2
1N4007
AC
L3
C7
330uF 16V
C3
102k 1kV
R4
47k
D4
1N4007
Vo
4uH
R8
510R
R2 4.7k
R9
56R
(5.2V/0.65A)
C8
330uF 16V
R10
2.2k
U3
H11A 817A
.
C9 470nF
L2
D5
UF4007
330uH
R11 0
U2
TL431
R12
2k
5
I_Limit Vstr
U1
D6
R5
UF4004
22R
0
Q2
2N2222
R13
300
TH1 10k
C5
10uF 50V
4
6
Drain
Vfb
3
Drain
Vcc
2
FSDM311
7
C10
4.7uF 50V
8
D3
1N4007
C2
4.7uF 400 V
0
D7
SB260
R3
47k
C1
4.7UF 400V
GND Drian
D1
1N4007
1
1W, 10R
TX1
R18
0
R19
510R
R14
150
R15 3R0
R16 3R0
R17 3R0
0
C4
100nF
H11A 817A
21
Selection Guide for Charger /
Adaptor / Aux. Power
Function
Protection Option
Vdmax
(V)
Ipeak
(A)
Pin(max)(1)
85265VAC
Fopr
(KHz)
Rds(on)
Max ()
OLP
OCL
OVP
TSD
FSD200(M)
700
0.3
5
134(+-4)
32
YES
NO
NO
YES
7DIP(7LSOP)
FSD210(M)
700
0.3
5
134(+-4)
32
YES
NO
NO
YES
7DIP(7LSOP)
FSD211H
700
0.5
12
134(+-4)
18
YES
NO
NO
YES
8DIPH
FSDM311(L)
650
0.48
7
70
19
YES
NO
YES
YES
8DIP(8LSOP)
FSDx321(L)
650
0.7
12
100/50
19
YES
YES
YES
YES
8DIP(8LSOP)
Device
PKG
Protection Option – OLP(Over Load Protection), OCL(Over Current Latch), OVP(Over Voltage Protection), TSD(Thermal Shutdown)
(1) Open Frame
Pin(max) Test Condition : Flyback Converter, Discontinuous Current Mode, Dmax=0.5, Vin(dc)=100V
22