FSDM0465R.pdf 데이터시트 (총 20 페이지) - 파일 다운로드 FSDM0465R 데이타시트 다운로드

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FSCM0465R
Green Mode Fairchild Power Switch (FPS™)
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Features
„ Internal Avalanche Rugged SenseFET
„ Low Start-up Current (max. 40µA)
„ Low Power Consumption; under 1W at 240VAC and
0.4W Load
„ Precise Fixed Operating Frequency (66kHz)
„ Frequency Modulation for Low EMI
„ Pulse-by-Pulse Current Limiting (Adjustable)
„ Over-Voltage Protection (OVP)
„ Overload Protection (OLP)
„ Thermal Shutdown Function (TSD)
„ Auto-Restart Mode
„ Under-Voltage Lock Out (UVLO) with Hysteresis
„ Built-in Soft-Start (15ms)
Applications
„ SMPS for VCR, SVR, STB, DVD, and DVCD
„ Adaptor
„ SMPS for LCD Monitor
Description
The FSCM0465R is an integrated Pulse-Width
Modulator (PWM) and SenseFET specifically designed
for high-performance offline Switch Mode Power
Supplies (SMPS) with minimal external components.
This device is an integrated high-voltage power-
switching regulator that combines an avalanche rugged
SenseFET with a current mode PWM control block. The
PWM controller includes an integrated fixed-frequency
oscillator, under-voltage lockout, leading edge blanking
(LEB), optimized gate driver, internal soft-start,
temperature-compensated precise current sources for a
loop compensation, and self-protection circuitry.
Compared with a discrete MOSFET and PWM controller
solution, it can reduce total cost, component count, size,
and weight while simultaneously increasing efficiency,
productivity, and system reliability. This device is a basic
platform well suited for cost-effective designs of flyback
converters.
Related Application Notes
„ AN-4137: Design Guidelines for Off-line Flyback
Converters Using Fairchild Power Switch (FPS)
„ AN-4140: Transformer Design Consideration for
Off-line Flyback Converters using Fairchild Power
Switch
„ AN-4141: Troubleshooting and Design Tips for
Fairchild Power Switch Flyback Applications
„ AN-4148: Audible Noise Reduction Techniques for
FPS Applications
Ordering Information
Product Number Package Pb-Free Marking Code
FSCM0465RJ
D2-PAK-6L Yes
FSCM0465RJX
D2-PAK-6L
FSCM0465RIWDTU(1) I2-PAK-6L
FSCM0465RGWDTU(1) TO-220-6L
Yes
Yes
Yes
CM0465R
Note:
1. WDTU: Forming Type
FPSTM is a trademark of Fairchild Semiconductor Corporation.
© 2006 Fairchild Semiconductor Corporation
FSCM0465R Rev. 1.0.1
1
BVDSS
650V
RDS(ON) Max.
2.6 Ω
Packing
Method
Tube
Tape & Reel
Tube
Tube
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Typical Circuit
AC
IN Drain
PWM
Ilimit
Vfb Vcc GND
DC
OUT
FSCM0465R Rev. 00
Figure 1. Typical Flyback Application
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Output Power Table
Product
FSCM0465RJ
FSCM0565RJ
FSCM0765RJ
FSCM0465RI
FSCM0465RG
FSCM0565RG
FSCM0765RG
230VAC ±15%(3)
Adapter(1)
Open Frame(2)
40W
55W
50W
65W
65W
70W
60W
70W
60W
70W
70W
85W
85W
95W
85–265VAC
Adapter(1)
Open Frame(2)
30W
40W
40W
50W
50W
60W
40W
50W
40W
50W
60W
70W
70W
85W
Notes:
1. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient
2. Maximum practical continuous power in an open-frame design at 50°C ambient
3. 230 VAC or 100/115 VAC with doubler
© 2006 Fairchild Semiconductor Corporation
FSCM0465R Rev. 1.0.1
2
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Internal Block Diagram
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N.C.
5
VCC
3
0.3/0.5V +
VCC
IDELAY
FB 4
-
VCC
IFB
2.5R
6
I_limit 0.3K
Soft start
8V/12V
PWM
R
Drain
1
VCC Good
Vref
Internal
Bias
Freq.
Modulation
OSC
SQ
RQ
LEB
Gate
Driver
VSD
VCC
Vovp
TSD
VCC UV Reset
Vcc Good
SQ
RQ
Figure 2. Functional Block Diagram of FSCM0465R
2 GND
FSCM0465R Rev. 00
© 2006 Fairchild Semiconductor Corporation
FSCM0465R Rev. 1.0.1
3
www.fairchildsemi.com