Download Built in Start up circuit using BCDMOS high-voltage

Fairchild Power Switch(FPS)
LCD Monitor / DVDP / DVDRW / STB
Power Conversion
www.fairchildsemi.com
Selection Guide
- 650V Class
Device
PKG
Function
Vdmax
(V)
Ipeak
(A)
Po(max)
85-265VAC
Fopr
(KHz)
Rds(on)
Max ()
FSDx321
650
0.7
12
50/100
19.0
8DIP
FSDL0165RN
650
1.2
17
50
10.0
8DIP
FSDM0265RNB
650
1.5
20
67
6.0
8DIP
FSDM0365RNB
650
2.15
24
67
4.5
8DIP
FSDM0465RB
650
1.6
48
66
3.2
TO220F-6L
FSDM0565RB
650
2.3
60
66
2.2
TO220F-6L
FSCM0465R
650
1.6
50
66
3.2
TO220F-6L
FSCM0565R
650
2.3
70
66
2.2
TO220-6L
FSDM07652RB
650
2.5
70
66
1.6
TO220F-6L
FSCM0765R
650
2.5
85
66
1.6
TO220-6L
FSDM1265RB
650
3.4
90
66
0.9
TO220F-6L
2
FSDX0365RNB
 Built in Start up circuit using BCDMOS high-voltage regulator
- Saves power loss caused by start resistor
 Built in Soft start
DRAIN
GND
- Reduces transformer stress when start up
 Frequency Modulation function
- 100kHz±3kHz, 67kHz±2kHz, 50kHz ±1.5kHz
- Improves EMI performance
- Saves filter component cost
Ipk
- Provides very low stand by power consumption
 Improved reliability through various Protection functions
 Programmable pulse by pulse current limit
- Reduces transformer size
3
DRAIN
DRAIN
Vfb
 Auto burst mode operation
- Over voltage, Over load and Thermal shut down
11
Vcc
Vstr
1
8DIP
Block Diagram of FSDX0365RNB
Built-in Start up
With High voltage J-FET
Burst Block
Soft Start
EMI reduction Block
Current Limit Block
OLP
OVP
Current Mode
Control
Multi Protection
TSD
4
FSDM0565RB
 Built in Start up circuit using BCDMOS high-voltage regulator
- Saves power loss caused by start up resistor
 Built in Soft start - Reduces transformer stress when start up
 Auto burst mode operation
- Provides very low stand by power consumption
 Improved reliability through various Protection functions
- Over voltage, Over load and Thermal shut down
 Optimized (fixed) pulse by pulse current limit level
TO-220F-6L for under 20mm height from PCB
I2PAK-6L for under 15mm height from PCB
5
FSDM0565RB
Vcc
Vstr
6
3
N.C 5
Drain
1
Istart
0.5/0.7V
+
Vref
8V/12V
Vcc
Vcc good
Internal
Bias
Vref
OSC
Idelay
IFB
2.5R
PWM
S
Q
R
Q
FB 4
Soft start
R
Gate
driver
LEB
VSD
Vcc
2 GND
S
Q
R
Q
Vovp
TSD
Vcc good
6
VCL
FSCM0565R
 Built in Soft start
- Reduce transformer stress when start up
 Frequency Modulation function
- Improve EMI performance & reduce EMI filter
 Low stand by power consumption with burst mode operation
 Improved reliability through various Protection functions
- Over voltage, Over current, Over load and Thermal shut down
 Programmable pulse by pulse current limit
- Optimized transformer size
7
FSCM0565R
Vcc
Drain
1
3
Vcc good
Vref
0.3/0.5V
8V/12V
+
Freq.
Modulation
Vcc
Internal
Bias
Vcc
OSC
Idelay
IFB
S
Q
R
Q
2.5R
FB 4
Ilimit
PWM
Gate
driver
R
5
Soft start
0.3K
LEB
VSD
Vcc
2 GND
S
Q
R
Q
Vovp
TSD
Vcc good
Vcc UV reset
8