FSDL0365RNB FAIRCHILD | Alldatasheet
Document overview
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- PDF pages: 20
Technical content
Features
- Internal Avalanche Rugged Sense FET
- Consumes only 0.65W at 240V AC & 0.3W load with Advanced Burst-Mode Operation
- Frequency Modulation for EMI Reduction
- Precision Fixed Operating Frequency
- Internal Start-up Circuit
- Pulse-by-Pulse Current Limiting
- Over V oltage Protection (OVP)
- Over Load Protection (OLP)
- Internal Thermal Shutdown Function (TSD)
- Auto-Restart Mode
- Under V oltage Lockout (UVLO)
- Low Operating Current (3mA)
- Adjustable Peak Current Limit
- Built-in Soft Start
Applications
- SMPS for VCR, SVR, STB, DVD & DVCD Player
- SMPS for Printer, Facsimile & Scanner
- Adapter for Camcorder Related Application Notes
- AN-4137, 4141, 4147(Flyback) / AN-4134(Forward)
Description
Each product in the FSDx0365RNB (x for L, M) family con- sists of an integrated Puls e Width Modulator (PWM) and Sense FET, and is specifically designed for high performance off-line Switch Mode Power Supplies (SMPS) with minimal external components. Both devices are integrated high voltage power switching regulators which combine an avalanche rug- ged Sense FET with a current mode PWM control block. The integrated PWM controller features include: a fixed oscillator with frequency modulation for reduced EMI, Under V oltage Lock Out (UVLO) protection, Leading Edge Blanking (LEB), an optimized gate turn-on/turn-off driver, Thermal Shut Down (TSD) protection and temperature compensated precision cur- rent sources for loop compensation and fault protection cir- cuitry. The FSDx0365RNB offers better performance in Soft Start than FSDx0365RN. When compared to a discrete MOS- FET and controller or RCC switching converter solution, the FSDx0365RNB devices reduce total component count, design size, weight while increasing efficiency, productivity, and sys- tem reliability. Both devices provide a basic platform that is well suited for the design of cost-effective flyback converters. Notes: 1. Typical continuous powe r in a non-ventilated enclosed adapter with sufficient drain pattern as a heat sinker, at 50°C ambient. 2. Maximum practical continuous power in an open frame design with sufficient drain pattern as a heat sinker, at 50°C ambient. 3. 230 VAC or 100/115 VAC with doubler. Typical Circuit Figure 1. Typical Flyback Application
Figure 2. Functional Block Diagram of FSDx0365RNB
Figure 3. Pin Configuration (Top View) 1 GND Sense FET source terminal on primary side and internal control ground. vice power is supplied via the auxiliary transformer winding. The feedback voltage pin is the non-inverting input to the PWM comparator. external capacitor Cfb from 3V to 6V using an internal 5uA current source. allows the protection mechanism to operate under true overload conditions. 12V, the internal switch is opened.
FSDL0365RNB, FSDM0365RNB Absolute Maximum Ratings (Ta=25°C, unless otherwise specified) Note: 1. Repetitive rating: Pulse width is limited by maximum junction temperature 2. L = 51mH, starting Tj = 25°C Thermal Impedance (Ta=25°C, unless otherwise specified) Note: 1. Free standing with no heatsink; Without copper clad. / Measurement Condition : Just before junction temperature TJ enters into OTP. 2. Measured on the DRAIN pin close to plastic interface. 3. Measured on the PKG top surface. - all items are tested with the standards JESD 51-2 and 51-10 (DIP). Characteristic Symbol Value Unit Drain Pin Voltage V DRAIN 650 V Vstr Pin Voltage V STR 650 V Drain Current Pulsed(1) IDM 12.0 A Single Pulsed Avalanche Energy(2) EAS 127 mJ Supply Voltage V CC 20 V Feedback Voltage Range V FB -0.3 to VCC V Total Power Dissipation P D 1.56 W Operating Junction Temperature T J Internally limited °C Operating Ambient Temperature T A -25 to +85 °C Storage Temperature T STG -55 to +150 °C Parameter Symbol Value Unit 8DIP Junction-to-Ambient Thermal(1) θJA 80.01 °C/W Junction-to-Case Thermal(2) θJC 18.85 °C/W Junction-to-Top Thermal(3) ψJT 33.70 °C/W
FSDL0365RNB, FSDM0365RNB
Electrical Characteristics
(Ta = 25°C unless otherwise specified) Note: 1. Pulse test: Pulse width ≤ 300us, duty ≤ 2% 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 3. These parameters, although guaranteed, are not 100% tested in production Parameter Symbol Condition Min. Typ. Max. Unit SENSE FET SECTION Zero-Gate-Voltage Drain Current I DSS VDS=650V, VGS=0V - - 50 µA VDS=520V, VGS=0V, TC=125°C - - 200 µA Drain-Source On-State Resistance(1) RDS(ON) VGS=10V, ID=0.5A - 3.6 4.5 Ω Input Capacitance C ISS VGS=0V, VDS=25V, f=1MHz - 315 - pF Output Capacitance C OSS -4 7- pF Reverse Transfer Capacitance C RSS -9- pF Turn-On Delay Time t d(on) VDS=325V, ID=1.0A - 11.2 - ns Rise Time t r - 34 - ns Turn-Off Delay Time t d(off) - 28.2 - ns Fall Time t f - 32 - ns CONTROL SECTION Switching Frequency f OSC FSDM0365RNB 61 67 73 KHz Switching Frequency Modulation ∆fMOD ±1.5 ±2.0 ±2.5 KHz Switching Frequency f OSC FSDL0365RNB 45 50 55 KHz Switching Frequency Modulation ∆fMOD ±1.0 ±1.5 ±2.0 KHz Switching Frequency Variation(2) ∆fOSC -25°C ≤ Ta ≤ 85°C - ±5 ±10 % Maximum Duty Cycle D MAX 71 77 83 % Minimum Duty Cycle D MIN 000 % UVLO Threshold Voltage VSTART V FB=GND 11 12 13 V VSTOP V FB=GND 7 8 9 V Feedback Source Current I FB V FB=GND 0.7 0.9 1.1 mA Internal Soft Start Time t S/S V FB=4V 10 15 20 ms BURST MODE SECTION Burst Mode Voltage VBURH - 0.4 0.5 0.6 V VBURL - 0.25 0.35 0.45 V PROTECTION SECTION Peak Current Limit I LIM Max. inductor current 1.89 2.15 2.41 A Current Limit Delay Time(3) tCLD - 500 - ns Thermal Shutdown Temperature T SD - 125 140 - °C Shutdown Feedback Voltage V SD 5.5 6.0 6.5 V Over Voltage Protection V OVP 18 19 - V Shutdown Delay Current I DELAY V FB=4V 3.5 5.0 6.5 µA Leading Edge Blanking Time t LEB 200 - - ns TOTAL DEVICE SECTION Operating Supply Current (control part only) IOP V CC=14V 1 3 5 mA Start-Up Charging Current I CH V CC=0V 0.7 0.85 1.0 mA Vstr Supply Voltage V STR VCC=0V 35 - - V
FSDL0365RNB, FSDM0365RNB Comparison Between KA5x0365RN and FSDx0365RNB Function KA5x0365RN FSDx0365RNB FSDx0365RNB Advantages Soft-Start not applicable 15ms • Gradually increasing current limit during soft-start further reduces peak current and voltage stresses
- Eliminates external components used for soft-start in most applications
- Reduces or eliminates output overshoot External Current Limit not applicable Programmable of default current limit
- Smaller transformer
- Allows power limiting (constant over- load power)
- Allows use of larger device for lower losses and higher efficiency. Frequency Modulation not applicable ±2.0KHz @67KHz ±1.5KHz @50KHz
- Reduces conducted EMI Burst Mode Operation not applicable Built into controller • Improves light load efficiency
- Reduces power consumption at no- load
- Transformer audible noise reduction Drain Creepage at Package 1.02mm 7.62mm • Greater imm unity to arcing provoked by dust, debris and other contami- nants
FSDL0365RNB, FSDM0365RNB Typical Performance Characteristics (Control Part) (These characteristic graphs are normalized at Ta = 25°C) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Operating Frequency (Fosc) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Frequency Modulation (∆FMOD) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Maximum Duty Cycle (DMAX) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Operating Supply Current (IOP) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Start Threshold Voltage (VSTART) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Stop Threshold Voltage (VSTOP) vs. Ta
FSDL0365RNB, FSDM0365RNB Typical Performance Characteristics (Continued) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Feedback Source Current (IFB) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Peak Current Limit (ILIM) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Start Up Charging Current (ICH) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Burst Peak Current (IBUR(pk)) vs. Ta 0.00 0.20 0.40 0.60 0.80 1.00 1.20 -50 0 50 100 150 Temp[ ℃] Normalized Over Voltage Protection (VOVP) vs. Ta
- Startup : In previous generations of Fairchild Power
Figure 4. High Voltage Current Source
- Feedback Control : The FSDx0365RNB employs current
Figure 5. Pulse Width Modulation (PWM) Circuit
- Leading Edge Blanking (LEB) : At the instant the inter-
LEB) after the Sense FET is turned on.
- Protection Circuits : The FPS has several protective
until the fault condition is eliminated.
4.1 Over Load Protection (OLP) : Overload is defined as
tion (OLP) circuit can be activated during the load transition.
3 OSC
Figure 6. Over Load Protection (OLP)
4.2 Thermal Shutdown (TSD) : The Sense FET and the
4.3 Over Voltage Protection (OVP) : In the event of a mal-
tion, Vcc should be properly designed to be below 19V .
- Soft Start : The FPS has an internal soft start circuit that
saturation and reduce the stress on the secondary diode. Figure 7. Soft Start Function
- Burst Operation : In order to minimize power dissipation
Sense FET and reduces switching loss in Standby mode.
- Adjusting Peak Current Limit : As shown in Figure 12,
biased by the main current source of 900uA. Figure 12. Peak Current Limit Adjustment
FSDL0365RNB, FSDM0365RNB Typical Application Circuit
- High efficiency (>76% at universal input)
- Low standby mode power consumption (<1W at 230Vac input and 0.6W load)
- Low component count
- Enhanced system reliability through various protection functions
- Low EMI through frequency modulation
- Internal soft-start (15ms) Key Design Notes
- The delay time for over load protection is designed to be about 30ms with C106 of 47nF. If faster/slower triggering of OLP is required, C106 can be changed to a smaller/larger value(eg. 100nF for about 60ms).
- Using a resistor R104(39 ㏀) on Ipk pin (#4), the pule-by-pulse peak current limit level(ILIM) is adjusted to about 2A.
- The branch formed by D103, C108 and R106 provides another I LIM adjustment having a negative slope to the input voltage. The ILIM value decreases as the input voltage level increases. 1. Schematic Application Output power Input vo ltage Output voltage (Max current) DVD Player 21W Universal input (85-265Vac) 3.3V (1.0A) 5.1V (0.8A) 12V (0.5A) 16V (0.5A) C102 100nF AC275V LF101 55mH C101 100nF AC275V F101 FUSE C103 47uF 400V R102 56kΩ C104 3.3nF 630V D101 UF 4007 IC101 FSDM0365RNB C107 47nF 50V C106 47uF 50V D102 UF 4004 R103 T101 EER2828 D203 EGP20D C205 470uF 35V C206 470uF 35V L203 10uH L207 4.7uH L206 4.7uH D204 EGP20D C207 470uF 35V C208 470uF 35V C214 1000uF 10V C213 1000uF 10V D207 SB360 D205 SB360 C209 1000uF 10V C210 1000uF 10V R201 510Ω R202 1kΩ R203 6.2kΩ R204 20kΩ C215 100nF R205 6kΩ IC302 FOD817A BD101 L205 10uH Vstr Ipk Vfb Vcc Drain GND Drain Drain 7 IC301 KA431 16V R104 39kΩ TNR R105 200kΩ R106 300kΩ D103 UF 4004 C108 1uF 100V C302 2.2nF 12V 5.1V 3.3V RT101 5D-9
FSDL0365RNB, FSDM0365RNB 2. Transformer Schematic Diagram 3. Winding Specification 4. Electrical Characteristics 5. Core & Bobbin Core : EER2828 ( Ae = 86.66 mm2 ) Bobbin : EER2828 EER2828 N12V N16V N5.1V N3.3V Np/2 Na Np/2 6mm 3mm N16V N12V Na N5.1V N3.3V Np/2 Np/2 Pin(S → F) Wi re Turns Winding Method N p/2 3 → 2 0.25φ ×1 50 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers N 3.3V 9 → 8 0.33φ ×2 4 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers N 5.1V 6 → 9 0.33φ ×1 2 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers N a 4 → 5 0.25φ ×1 16 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers N 12V 10 → 12 0.33φ ×1 14 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 3Layers N 16V 11 → 12 0.33φ ×1 18 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers N p/2 2→ 1 0.25φ ×1 50 Center Solenoid winding Insulation : Polyester Tape t = 0.050mm, 2Layers Pi n Spec. Remar k Inductance 1－ 3 1.4 mH ± 10% 100kHz, 1V Leakage 1－ 3 25 uH Max. Short all other pins
FSDL0365RNB, FSDM0365RNB 6. Demo Circuit Part List Part Value Note Part Value Note Resistor Inductor R102 56K 1W L203 10uH - R103 5 1/4W L205 10uH - R104 39K 1/4W L206 4.7uH - R105 200K 1/4W L207 4.7uH - R106 300K 1/4W Diode R201 510 1/4W D101 UF4007 PN Ultra Fast R202 1K 1/4W D102 UF4004 PN Ultra Fast R203 6.2 K 1/4W D103 UF4004 PN Ultra Fast R204 20K 1/4W D203 EGP20D PN Ultra Fast R205 6K 1/4W D204 EGP20D PN Ultra Fast Capacitor D205 SB360 Schottky C101 100nF/275AC Box D207 SB360 Schottky C102 100nF/275AC Box IC C103 47uF/400V Electrolytic IC101 FSDM0365RNB FPS™ C104 3.3nF/630V Film IC301 KA431(TL431) Voltage reference C106 47uF/50V Electrolytic IC302 FOD817A Opto-Coupler C107 47nF/50V Ceramic C108 1uF/100V Electrolytic Fuse C205 470uF/35V Electrolytic FUSE 2A/250V C206 470uF/35V Electrolytic C207 470uF/35V Electrolytic NTC C208 470uF/35V Electrolytic RT101 5D-9 C209 1000uF/10V Electrolytic C210 1000uF/10V Electrolytic Bridge Diode C213 1000uF/10V Electrolytic BD101 2KBP06M 2N257 Bridge Diode C214 1000uF/10V Electrolytic C215 100nF/50V Ceramic Line Filter C302 2.2nF AC Ceramic LF101 55mH -
FSDL0365RNB, FSDM0365RNB 7. Layout
7.1 Top image of PCB
7.2 Bottom image of PCB
FSDL0365RNB, FSDM0365RNB Package Dimensions 8DIP
FSDL0365RNB, FSDM0365RNB
Ordering Information
Product Number Package Marking Code BV DSS fOSC RDS(ON) FSDM0365RNB 8DIP DM0365R 650V 67KHz 3.6 Ω FSDL0365RNB 8DIP DL0365R 650V 50KHz 3.6 Ω
FSDL0365RNB, FSDM0365RNB 9/29/05 0.0m 001 © 2005 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.