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KA5M0765RQC Dataheets PDF



Part Number KA5M0765RQC
Manufacturers Fairchild
Logo Fairchild
Description Fairchild Power Switch(SPS)
Datasheet KA5M0765RQC DatasheetKA5M0765RQC Datasheet (PDF)

www.fairchildsemi.com KA5M0765RQC Fairchild Power Switch(SPS) Features • • • • • • • • • • Precision fixed operating frequency (70KHz) Low start-up current (Typ. 100µA) Pulse by pulse current limiting Over load protection Over current protection Over voltage protection (Min. 25V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Auto-restart mode Description The SPS product family is specially designed for an off-line SMPS with minimal external component.

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www.fairchildsemi.com KA5M0765RQC Fairchild Power Switch(SPS) Features • • • • • • • • • • Precision fixed operating frequency (70KHz) Low start-up current (Typ. 100µA) Pulse by pulse current limiting Over load protection Over current protection Over voltage protection (Min. 25V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Auto-restart mode Description The SPS product family is specially designed for an off-line SMPS with minimal external components. The SPS consist of high voltage power SenseFET and current mode PWM IC. Included PWM controller features integrated fixed frequency oscillator, under voltage lock-out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal shutdown protection, over voltage protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to discrete MOSFET and PWM controller or RCC solution, a SPS 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-220-5L 1 1. DRAIN 2. GND 3. VCC 4. FB 5. S/S Internal Block Diagram Vcc 3 + 27V Drain 1 UVLO INTERNAL BIAS Good Logic CLK OVP OVP-out V CC V REF 5uA 15V/9V 1mA - Vref VOLTAG E Sense LIMIT CIRCUIT FET OSC Feedback 4 Soft Start 5 + 7.5V 5V OLP 1 4V 2.5R S + LEB R Q R TSD (TJ =150℃) OVP-out (VCC =27V) OCL (VS=1.4V) VO F F S E T VS Rsense Q R S Power-on Reset /Auto-restart 2 GND ※ LEB : Leading Edge Blanking ※ OCL : Over Current Limit Shutdown Latch Rev.1.0.1 ©2001 Fairchild Semiconductor Corporation KA5M0765RQC Absolute Maximum Ratings Parameter Maximum Drain voltage (1) Symbol VD,MAX VDGR VGS IDM (3) Value 650 650 ±30 28.0 570 7.0 5.6 30 −0.3 to VSD 140 1.11 −25 to +85 −55 to +150 Unit V V V ADC mJ ADC ADC V V W W/°C °C °C Drain-Gate voltage (RGS=1MΩ) Gate-source (GND) voltage Drain current pulsed (2) Single pulsed avalanche energy EAS 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, starting Tj=25°C 2 KA5M0765RQC 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=3.5A VDS=50V, ID=3.5A VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=7.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=7.0A, VDS=0.8BVDSS Min. 650 3.0 Typ. 1.25 1120 125 25 25 70 105 65 38 6.5 18 Max. 50 200 1.6 60 150 220 140 50 nC nS pF Unit V µA µA Ω S Zero g.


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