FSDM0265RNB ONSEMI | Alldatasheet
Document overview
- Manufacturer or author: ON Semiconductor
- PDF pages: 16
Technical content
Features
- Internal Avalanche Rugged SENSEFET
- Consumes only 0.65 W at 240 V AC & 0.3 W 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 (3 mA)
- Adjustable Peak Current Limit
- Built−in Soft Start
Applications
- SMPS for VCR, SVR, STB, DVD & DVCD
- SMPS for Printer, Facsimile & Scanner
- Adapter for Camcorder www.onsemi.com MARKING DIAGRAM See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
(9.42x6.38, 2.54P) CASE 646CM ZXYKK DM0x65RB Z = Assembly Code XY = 2 −digit Year & Week Code KK = 2 −digit Die−Run Code DM0x65RB = Specific Device Code x = Device Option (2 or 3) PIN CONFIGURATION 8DIP
FSDM0265RNB, FSDM0365RNB www.onsemi.com Product Number Package Marking Code BVDSS fOSC RDS(ON) FSDM0265RNB 8DIP DM0265R 650 V 67 KHz 5.0 /C0087 FSDM0365RNB 8DIP DM0365R 650 V 67 KHz 3.6 /C0087 Table 1. OUTPUT POWER TABLE
- Typical continuous power in a non−ventilated enclosed adapter
with sufficient drain pattern as a heat sinker, at 50_C ambient.
- Maximum practical continuous power in an open frame design
with sufficient drain pattern as a heat sinker, at 50_C ambient.
- 230 VAC or 100/115 VAC with doubler.
Figure 1. Typical Flyback Application Figure 2. Functional Block Diagram of FSDM0265RNB
1 GND
8 V/12 V
Table 2. PIN DEFINITIONS 1 GND SENSEFET source terminal on primary side and internal control ground. plied via the auxiliary transformer winding. tions, but still allows the protection mechanism to operate under true overload conditions. mine the peak current limit. If this pin is tied to Vcc or left floating, the typical peak current limit will be 1.5 A. reaches 12 V, the internal switch is opened. decrease leakage inductance. should not be assumed, damage may occur and reliability may be affected.
- Repetitive rating: Pulse width is limited by maximum junction temperature
- Free standing with no heatsink; without copper clad
- Measured on the DRAIN pin close to plastic interface
- Measured on the GND pin close to plastic interface
- Measured on the PKG top surface
NOTE: All items are tested with the standards JESD 51 −2 and 51−10 (DIP).
FSDM0265RNB, FSDM0365RNB www.onsemi.com ELECTRICAL CHARACTERISTICS (Ta = 25°C unless otherwise noted) Symbol Parameter Condition Min Typ Max Unit SENSEFET SECTION IDSS Zero−Gate Voltage Drain Current VDS = 650 V, VGS = 0 V − − 50 /C0109A VDS = 520 V, VGS = 0 V, TC = 125°C − − 200 /C0109A RDS(ON) Drain−Source On−State Resistance (Note 10) VGS = 10 V, ID = 0.5 A FDSM0265RNB FDSM0365RNB 5.0 3.6 6.0 4.5 /C0087 CISS Input Capacitance FDSM0265RNB VGS = 0 V, VDS = 25 V, f = 1 MHz − 550 − pF COSS Output Capacitance − 38 − pF CRSS Reverse Transfer Capacitance − 17 − pF CISS Input Capacitance FDSM0365RNB V GS = 0 V, VDS = 25 V, f = 1 MHz − 315 − pF COSS Output Capacitance − 47 − pF CRSS Reverse Transfer Capacitance − 9.0 − pF td(on) Turn−On Delay Time FDSM0265RNB VDS = 325 V, ID = 1.0 A − 20 − ns tr Rise Time − 15 − ns td(off) Turn−Off Delay Time − 55 − ns tf Fall Time − 25 − ns td(on) Turn−On Delay Time FDSM0365RNB VDS = 325 V, ID = 1.0 A − 11.2 − ns tr Rise Time − 34 − ns td(off) Turn−Off Delay Time − 28.2 − ns tf Fall Time − 32 − ns CONTROL SECTION fOSC Switching Frequency 61 67 73 KHz /C0068fMOD Switching Frequency Modulation ±1.5 ±2.0 ±2.5 KHz /C0068fOSC Switching Frequency Variation (Note 11) −25°C ≤ TA ≤ 85°C − ±5 ±10 % DMAX Maximum Duty Cycle FDSM0265RNB FDSM0365RNB DMIN Minimum Duty Cycle 0 0 0 % VSTART UVLO Threshold Voltage VFB = GND 11 12 13 V VSTOP VFB = GND 7 8 9 V IFB Feedback Source Current VFB = GND 0.7 0.9 1.1 mA tS/S Internal Soft Start Time VFB = 4 V 10 15 20 ms BURST MODE SECTION VBURH Burst Mode Voltage − 0.4 0.5 0.6 V VBURL − 0.25 0.35 0.45 V PROTECTION SECTION ILIM Peak Current Limit Max. inductor current FDSM0265RNB FDSM0365RNB 1.3 1.89 1.5 2.15 1.7 2.41 A tCLD Current Limit Delay Time (Note 12) − 500 − ns TSD Thermal Shutdown Temperature − 125 140 − °C VSD Shutdown Feedback Voltage 5.5 6.0 6.5 V VOVP Over Voltage Protection VFB = 4 V 18 19 − V IDELAY Shutdown Delay Current 3.5 5.0 6.5 /C0109A tLEB Leading Edge Blanking Time 200 − − ns
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
- These parameters, although guaranteed, are tested in EDS (wafer test) process
Table 3. COMPARISON BETWEEN KA5x0265RN AND FSDM0265RNB
Figure 16. Over Load Protection (OLP) 140°C, thermal shutdown is activated. Figure 17. Soft Start Function
5 V # 6, 7, 8
the feedback voltage drops below V BURH (500 mV). limit internally to minimize flux density in the transformer. VBURH and therefore, V FB is driven down further. Figure 18. Soft Start Function
FSDM0265RNB, FSDM0365RNB www.onsemi.com TYPICAL APPLICATION CIRCUIT Table 4. ELECTRICAL SPECIFICATION
- High efficiency (> 76% at universal input)
- Low standby mode power consumption (< 1 W at 230 Vac input and 0.5 W load)
- Low component count
- Enhanced system reliability through various protection functions
- Low EMI through frequency modulation
- Internal soft−start (15 ms) Key Design Notes
- The delay time for over load protection is designed to be about 30 ms with C106 of 47 nF. If faster/slower triggering of OLP is required, C106 can be changed to a smaller/larger value (eg. 100 nF for about 60 ms).
- Using a resistor R104 (3.3 /C0087) on Ipk pin (#4), the pule−by−pulse peak current limit level(ILIM) is adjusted to about 0.8 A.
- The branch formed by D103, C108 and R106 provides another ILIM adjustment having a negative slope to the input voltage. The ILIM value decreases as the input voltage level increases.
Figure 23. Schematic
630 V D101
Figure 24. Transformer Schematic Diagram Table 5. WINDING SPECIFICATION Table 6. ELECTRICAL CHARACTERISTICS
Table 7. DEMO CIRCUIT PART LIST
FSDM0265RNB, FSDM0365RNB www.onsemi.com PACKAGE DIMENSIONS PDIP8 9.42x6.38, 2.54P CASE 646CM ISSUE O
5.08 MAX
0.33 MIN
(0.56) 3.683 3.200 3.60 3.00 2.54 1.65 1.27 7.62 0.560 0.355 9.83 9.00 6.670 6.096 9.957 7.870 0.356 0.200 8.255 7.610 7.62 SIDE VIEW NOTES: A. CONFORMS TO JEDEC MS−001, VARIATION BA B. ALL DIMENSIONS ARE IN MILLIMETERS C. DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR EXTRUSIONS D. DIMENSIONS AND TOLERANCES PER ASME Y14.5M−2009 FRONT VIEW TOP VIEW
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