FSDM0465RE_07 FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
Internal Avalanche-Rugged SenseFET Advanced Burst-Mode Operation Consumes Under 1W at 240VAC & 0.5W load Precision Fixed Operating Frequency (66kHz) Internal Start-up Circuit Improved Pulse-by-Pulse Current Limiting Over-Voltage Protection (OVP) Overload Protection (OLP) Internal Thermal Shutdown Function (TSD) Auto-Restart Mode Under-Voltage Lockout (UVLO) with hysteresis Low Operating Current (2.5mA) Built-in Soft-Start
Applications
SMPS for LCD monitor and STB Adaptor
Description
The FSDM0465RE, FSDM0565RE and FSDM07652RE are 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.
Ordering Information
Note: 1. WDTU: Forming Type. All packages are lead free per JEDEC: J-STD-020B standard. Product Number Package Marking Code BV DSS RDS(ON) Max. FSDM0465REWDTU(1) TO-220F-6L (Forming) DM0465RE 650V 2.6 Ω FSDM0565REWDTU TO-220F-6L (Forming) DM0565RE 650V 2.2 Ω FSDM07652REWDTU TO-220F-6L (Forming) DM07652RE 650V 1.6 Ω
Figure 1. Typical Flyback Application
- Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient.
- Maximum practical continuous power in an open-frame design at 50°C ambient.
AC or 100/115VAC with doubler.
Figure 2. Functional Block Diagram of FSDM0x65RE
Figure 3. Pin Configuration (Top View) signed to drive the transformer directly. 2G N D Ground. This pin is the control ground and the SenseFET source. is disabled and the power is supplied from the auxiliary transformer winding. sulting in shutdown of the FPS™. ternal current source is disabled.
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 5 Absolute Maximum Ratings The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. T A = 25°C, unless otherwise specified. Notes: 5. Repetitive rating: Pulse width limited by maximum junction temperature. 6. L=14mH, starting TJ=25°C. Thermal Impedance TA=25°C, unless otherwise specified. Notes: 7. Free-standing, with no heat-sink, under natural convection. 8. Infinite cooling condition - refer to the SEMI G30-88. Symbol Parameter Value Unit BVDSS Drain Source Breakdown Voltage 650 V Vstr Max. Voltage at Vstart pin 650 V IDM Drain Current Pulsed(5) FSDM0465RE T C=25°C 9.6 ADCFSDM0565RE T C=25°C 11 FSDM07652RE T C=25°C 15 ID Continuous Drain Current FSDM0465RE TC=25°C 2.2 A TC=100°C 1.4 FSDM0565RE TC=25°C 2.8 TC=100°C 1.7 FSDM07652RE TC=25°C 3.8 TC=100°C 2.4 EAS Single Pulsed Avalanche Energy(6) FSDM0465RE mJFSDM0565RE 190 FSDM07652RE 370 VCC Supply Voltage 20 V VFB Input Voltage Range -0.3 to V CC V PD(Watt H/S) Total Power Dissipation (T C=25°C) 45 W TJ Operating Junction Temperature Internally limited °C TA Operating Ambient Temperature -25 to +85 °C TSTG Storage Temperature -55 to +150 °C ESD Capability, HBM Model (All pins except V str and FB) 2.0 (GND-Vstr/VFB=1.5kV) kV ESD Capability, Machine Model (All pins except Vstr and FB) 300 (GND-Vstr/VFB=225V) V Symbol Parameter Value Unit θJA (7) Junction-to-Ambient Thermal Resistance 49.90 °C/W θJC (8) Junction-to-Case Thermal Resistance 2.78 °C/W
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 6
Electrical Characteristics
TA = 25°C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit SenseFET SECTION IDSS Zero Gate Voltage Drain Current FSDM0465RE VDS = 650V, VGS = 0V 250 µA VDS = 520V, VGS = 0V, TC = 125°C 250 FSDM0565RE VDS = 650V, VGS = 0V 500 VDS = 520V, VGS = 0V, TC = 125°C 500 FSDM07652RE VDS = 650V, VGS = 0V 500 VDS = 520V, VGS = 0V, TC = 125°C 500 RDS(ON) Static Drain Source on Resistance(9) FSDM0465RE VGS = 10V, ID = 2.5A 2.20 2.60 ΩFSDM0565RE 1.76 2.20 FSDM07652RE 1.40 1.60 COSS Output Capacitance FSDM0465RE VGS = 0V, VDS = 25V, f = 1MHz pFFSDM0565RE 78 FSDM07652RE 100 td(on) Turn-On Delay Time FSDM0465RE VDD = 325V, ID = 5A nsFSDM0565RE 22 FSDM07652RE 22 tr Rise Time FSDM0465RE VDD = 325V, ID = 5A nsFSDM0565RE 52 FSDM07652RE 60 td(off) Turn-Off Delay Time FSDM0465RE VDD = 325V, ID = 5A nsFSDM0565RE 95 FSDM07652RE 115 tf Fall Time FSDM0465RE VDD = 325V, ID = 5A nsFSDM0565RE 50 FSDM07652RE 65 CONTROL SECTION fOSC Switching Frequency V FB = 3V 60 66 72 kHz ΔfSTABLE Switching Frequency Stability 13V ≤ VCC ≤ 18V 0 1 3 % ΔfOSC Switching Frequency Variation(10) -25°C ≤ TA ≤ 85°C 0 ±5 ±10 % IFB Feedback Source Current V FB = GND 0.7 0.9 1.1 mA DMAX Maximum Duty Cycle FSDM0465RE 77 82 87 % FSDM0565RE 77 82 87 % FSDM07652RE 75 80 85 % D MIN Minimum Duty Cycle 0 % VSTART UVLO Threshold Voltage VFB = GND 11 12 13 V VSTOP VFB = G N D 789V tS/S Internal Soft-Start Time V FB = 3 10 15 ms
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 7 Electrical Characteristics (Continued) TA = 25°C unless otherwise specified. Notes: 9. Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2%. 10. These parameters, although guaranteed at the design, are not tested in production. 11. These parameters indicate the inductor current. 12. This parameter is the current flowing into the control IC. Symbol Parameter Condition Min. Typ. Max. Unit BURST MODE SECTION VBURH Burst Mode Voltages VCC = 14V 0.7 V VBURL VCC = 14V 0.5 V PROTECTION SECTION VSD Shutdown Feedback Voltage V FB ≥ 5.5V 5.5 6.0 6.5 V IDELAY Shutdown Delay Current V FB = 5V 2.8 3.5 4.2 µA tLEB Leading-Edge Blanking Time 250 ns ILIMIT Peak Current Limit(11) FSDM0465RE V FB = 5V, VCC = 14V 1.60 1.80 2.00 AFSDM0565RE V FB = 5V, VCC = 14V 2.00 2.25 2.50 FSDM07652RE V FB = 5V, VCC = 14V 2.20 2.50 2.70 VOVP Over-Voltage Protection 18 19 20 V TSD Thermal Shutdown Temperature(10) 130 145 160 °C TOTAL DEVICE SECTION IOP Operating Supply Current(12) VFB = GND, VCC = 14V 2.5 5.0 mAIOP(MIN) VFB = GND, VCC = 10V IOP(MAX) VFB = GND, VCC = 18V
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 8 Comparison Between FS6M0765RTC and FSDM0x65RE Function FS6M0765RTC FSDM0x65RE FSDM0x65RE Advantages Soft-Start Adjustable soft-start time using an external capacitor Internal soft-start with typically 10ms (fixed) Gradually increasing current limit during soft-start reduces peak current and volt- age component stresses Eliminates external soft-start components in most applications Reduces or eliminates output overshoot Burst-Mode Operation Built into controller Output voltage drops to around half Built into controller Output voltage fixed Improves light-load efficiency Reduces no-load consumption
These characteristic graphs are normalized at TA= 25°C. Figure 16. Soft-Start Time vs. Temp.
- Start-up: In previous generations of Fairchild Power
CC goes below the stop voltage of 8V. Figure 17. Internal Start-up Circuit
- Feedback Control : FSDM0x65RE employs current-
makes it possible to control the switching duty cycle. the output load is decreased.
2.1 Pulse-by-Pulse Current Limit : Because current-
2.2 Leading Edge Blanking (LEB) : At the instant the
LEB) after the SenseFET is turned on. Figure 18. Pulse-Width-Modulation (PWM) Circuit
- Protection Circuit : The FSDM0x65RE has several
fault condition is eliminated (see Figure 19).
4 OSC
Figure 19. Auto Restart Operation
3.1 Overload Protection (OLP): Overload is defined as
B from 2.5V to 6.0V with 3.5µA. A 10 ~ 50ms delay time is typical for most applications. Figure 20. Overload Protection
3.2 Over-Voltage Protection (OVP) : If the secondary
CC should be designed below 19V.
3.3 Thermal Shutdown (TSD) : The SenseFET and the
thermal shutdown is activated.
- Soft-Start: The FSDM0x65RE has an internal soft-
conditions for transformers, inductors, and capacitors.
- Burst Operation : To minimize power dissipation in
thereby reducing switching loss in standby mode. Figure 21. Waveforms of Burst Operation
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 15
Application Information
High efficiency (>81% at 85VAC input) Low zero load power consumption (<300mW at 240VAC input) Low standby mode power consumption (<800mW at 240VAC input and 0.3W load) Low component count Enhanced system reliability through various protection functions Internal soft-start (10ms) Key Design Notes Resistors R102 and R105 are employed to prevent start-up at low input voltage. After start-up, there is no power loss in these resistors since the start-up pin is internally disconnected after start-up. The delay time for overload protection is designed to be about 50ms with C106 of 47nF. If a faster triggering of OLP is required, C106 can be reduced to 10nF. Zener diode ZD102 is used for a safety test, such as UL. When the drain pin and feedback pin are shorted, the zener diode fails and remains short, which causes the fuse (F1) to be blown and prevents explosion of the opto-cou- pler (IC301). This zener diode also increases the immunity against line surge. 1. Schematic Figure 22. Demo Circuit
Figure 23. Transformer Schematic Diagram
- Electrical Characteristics
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 17 6. Demo Circuit Part List Part Value Note Part Value Note Fuse D102 UF4004 F101 2A/250V D201 MBRF1045 D202 MBRF10100 NTC ZD101 Zener Diode 22V RT101 5D-9 ZD102 Zener Diode 10V Resistor Bridge Diode R101 560k Ω 1W BD101 2KBP06M 3N257 Bridge Diode R102 30k Ω 1/4W R103 56k Ω 2W Line Filter R104 5 Ω 1/4W LF101 23mH Wire 0.4mm R105 40k Ω 1/4W R201 1k Ω 1/4W IC R202 1.2k Ω 1/4W IC101 FSDM0565RE FPS™ (5A,650V) R203 12k Ω 1/4W IC201 KA431 (TL431) Voltage reference R204 5.6k Ω 1/4W IC301 H11A817A Opto-coupler R205 5.6k Ω 1/4W Capacitor C101 220nF/275V AC Box Capacitor C102 220nF/275V AC Box Capacitor C103 100µF/400V Electrolytic Capacitor C104 2.2nF/1kV Ceramic Capacitor C105 22µF/50V Electrolytic Capacitor C106 47nF/50V Ceramic Capacitor C201 1000µF/25V Electrolytic Capacitor C202 1000µF/25V Electrolytic Capacitor C203 1000µF/10V Electrolytic Capacitor C204 1000µF/10V Electrolytic Capacitor C205 47nF/50V Ceramic Capacitor C301 4.7nF Polyester Film Cap. Inductor L201 5µH Wire 1.2mm L202 5µH Wire 1.2mm Diode D101 UF4007
Figure 26. TO-220F-6L (Forming)
FSDM0465RE, FSDM0565RE, FSDM07652RE — Green Mode Fairchild Power Switch (FPS™) © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 20