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부품번호 | FSCM0465R 기능 |
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기능 | Green Mode Fairchild Power Switch | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 20 페이지수
FSCM0465R
Green Mode Fairchild Power Switch (FPS™)
June 2006
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
www.fairchildsemi.com
http://www.Datasheet4U.com
Pin Configuration
FSCM0465RJ
D2-PAK-6L
6 : I_limit
5 : N.C.
4 : FB
3 : VCC
2 : GND
1 : Drain
FSCM0465RI
I2-PAK-6L
6 : I_limit
5 : N.C.
4 : FB
3 : VCC
2 : GND
1 : Drain
FSCM0465RG
TO-220-6L
6. I_limit
5. N.C.
4. FB
3. VCC
2. GND
1. Drain
Figure 3. Pin Configuration (Top View)
Pin Definitions
Pin Number Pin Name
1 Drain
2 GND
3 VCC
4 Feedback (FB)
5 N.C.
6 I_limit
Pin Function Description
SenseFET Drain. This pin is the high-voltage power SenseFET drain. It is
designed to drive the transformer directly.
Ground. This pin is the control ground and the SenseFET source.
Power Supply. This pin is the positive supply voltage input. During startup,
the power is supplied through the startup resistor from DC link. When VCC
reaches 12V, the power is supplied from the auxiliary transformer winding.
Feedback. This pin is internally connected to the inverting input of the PWM
comparator. The collector of an opto-coupler is typically tied to this pin. For
stable operation, a capacitor should be placed between this pin and GND. If
the voltage of this pin reaches 6.0V, the overload protection is activated, re-
sulting in shutdown of the FPS.
This pin is not connected.
Current Limit. This pin is for the pulse-by-pulse current limit level program-
ming. By using a resistor to GND on this pin, the current limit level can be
changed. If this pin is left floating, the typical current limit is 2.0A.
© 2006 Fairchild Semiconductor Corporation
FSCM0465R Rev. 1.0.1
4
www.fairchildsemi.com
http://www.Datasheet4U.com
4페이지 Comparison Between FSDM0465RB and FSCM0465R
Function
FSDM0465RB
FSCM0465R
Frequency Modulation
Pulse-by-pulse Current Limit
N/A
Internally fixed (2.0A max.)
Available
- Frequency modulation range (ΔfMOD) = ±3kHz
- Frequency modulation cycle (tMOD) = 4ms
Programmable using external resistor (2.8A max.)
Internal Startup Circuit
Available
N/A (Requires a startup resistor)
Startup current: 40µA (max.)
Packages
TO-220F-6L
TO-220-6L
I2-PAK-6L
D2-PAK-6L
© 2006 Fairchild Semiconductor Corporation
FSCM0465R Rev. 1.0.1
7
www.fairchildsemi.com
http://www.Datasheet4U.com
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부품번호 | 상세설명 및 기능 | 제조사 |
FSCM0465R | Green Mode Fairchild Power Switch | Fairchild Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |