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1M0880 Dataheets PDF



Part Number 1M0880
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description KA1M0880
Datasheet 1M0880 Datasheet1M0880 Datasheet (PDF)

www.DataSheet4U.com www.fairchildsemi.com KA1L0880B/KA1M0880B Fairchild Power Switch(FPS) Features • • • • • • • • • • Precision fixed operating frequency KA1L0880B(50KHz),KA1M0880B(67KHz) Pulse by pulse over current limiting Over load protection Over voltage protection (Min. 23V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Latch up mode Soft start Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS.

  1M0880   1M0880


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www.DataSheet4U.com www.fairchildsemi.com KA1L0880B/KA1M0880B Fairchild Power Switch(FPS) Features • • • • • • • • • • Precision fixed operating frequency KA1L0880B(50KHz),KA1M0880B(67KHz) Pulse by pulse over current limiting Over load protection Over voltage protection (Min. 23V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Latch up mode Soft start Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM controller IC. PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over voltage protection, temperature compensated precision current sources for loop compensation and fault protection circuit. compared to discrete MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce total component count, design size, weight and at the same time increase & efficiency, productivity, and system reliability. It has a basic platform well suited for cost effective design in either a flyback converter or a forward converter. TO-3P-5L 1 1. DRAIN 2. GND 3. VCC 4. FB 5. S/S Internal Block Diagram #3 VCC 32V 5V Vref Good logic #5 Soft Start 5V OSC S R #4 FB 5µA − 1mA 2.5R 1R 9V + 7.5V − + 25V − Thermal S/D OVER VOLTAGE S/D + L.E.B 0.1V S R Q #2 GND Q Internal bias #1 DRAIN SFET Power on reset Rev.1.0.2 ©2001 Fairchild Semiconductor Corporation www.DataSheet4U.com KA1L0880B/KA1M0880B Absolute Maximum Ratings Parameter Maximum Drain voltage (1) Symbol VD,Max VDGR VGS IDM (3) Value 800 800 ±30 32.0 810 15 8.0 5.6 30 −0.3 to VSD 190 1.54 −25 to +85 −55 to +150 Unit V V V ADC mJ A ADC ADC V V W W/°C °C °C Drain-Gate voltage (RGS=1MΩ) Gate-source (GND) voltage Drain current pulsed Avalanche current (4) (2) Single pulsed avalanche energy EAS IAS ID ID VCC,MAX VFB PD Derating TA TSTG Continuous drain current (TC=25°C) Continuous drain current (TC=100°C) Maximum Supply voltage Input voltage range Total power dissipation Operating ambient temperature Storage temperature Notes: 1. Tj=25°C to 150°C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L=24mH, VDD=50V, RG=25Ω, starting Tj=25°C 4. L=13µH, starting Tj=25°C 2 www.DataSheet4U.com KA1L0880B/KA1M0880B Electrical Characteristics (SFET part) (Ta=25°C unless otherwise specified) Parameter Drain source breakdown voltage Symbol BVDSS Condition VGS=0V, ID=50µA VDS=Max., Rating, VGS=0V VDS=0.8Max., Rating, VGS=0V, TC=125°C VGS=10V, ID=5.0A VDS=15V, ID=5.0A VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=8.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=8.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) Min. 800 1.5 Typ. 1.2 2.5 2460 210 64 95 150 60 20 70 Max. 50 200 1.5 90 200 450 150 150 nC nS pF Unit V µA µA Ω S Zero gate voltage drain current Static drain source on resistance (note) Forward transconductance (note) Input capacitance Output capacitance Reverse transfer capacitance Turn on delay time Rise time Turn off delay time Fall time Total gate charge (gate-source+gate-drain) Gate source charge Gate drain (Miller) charge Note: Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2% 1 S = --R IDSS RDS(ON) gfs Ciss Coss Crss td(on) tr td(off) tf Qg Qgs Qgd 3 www.DataSheet4U.com KA1L0880B/KA1M0880B Electrical Characteristics (CONTROL part) (Ta=25°C unless otherwise specified) Parameter UVLO SECTION Start threshold voltage Stop threshold voltage OSCILLATOR SECTION Initial accuracy Frequency change with temperature (2) Maximum duty cycle FEEDBACK SECTION Feedback source current Shutdown Feedback voltage Shutdown delay current SOFT START SECTION Soft Start Voltage Soft Start Current REFERENCE SECTION Output voltage (1) Temperature Stability Peak Current Limit PROTECTION SECTION Thermal shutdown temperature (Tj) (1) Over voltage protection voltage TOTAL DEVICE SECTION Start Up current Operating supply current (control part only) VCC zener voltage ISTART IOP VZ VCC=14V Ta=25°C ICC=20mA 0.1 6 30 0.3 12 32.5 0.45 18 35 mA mA V TSD VOVP 140 23 160 25 28 °C V (1)(2) Symbol VSTART VSTOP Condition After turn on KA1L0880B KA1M0880B −25°C ≤ Ta ≤ +85°C Min. 14 9 45 61 74 Typ. 15 10 50 67 ±5 77 0.9 7.5 5.0 5.0 1.0 5.00 0.3 5.00 Max. 16 11 55 73 ±10 80 1.1 8.1 6.0 5.3 1.2 5.20 0.6 5.60 Unit V V FOSC ∆F/∆T Dmax IFB VSD Idelay VSS ISS Vref Vref/∆T IOVER kHz % % mA V µA V mA V mV/°C A Ta=25°C, 0V ≤ Vfb ≤ 3V Ta=25°C, 5V ≤ Vfb ≤ VSD VFB =2V Sync & S/S=GND Ta=25°C −25°C ≤ Ta ≤ +85°C Max. inductor current 0.7 6.9 4.0 4.7 0.8 4.80 4.40 CURRENT LIMIT (SELF-PROTECTION) SECTION Note: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are t.


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