Product Summary

The KA5L0365RN is a Fairchild Power Switch(FPS) which specially designed for an off-line SMPS with minimal external components. The KA5L0365RN consists of a high voltage power SenseFET and a current mode PWM IC. Included PWM controller integrates the fixed frequency oscillator, the under voltage lock-out, the leading edge blanking, the optimized gate turn-on/turn-off driver, the thermal shutdown protection, the over voltage protection, and the temperature compensated precision current sources for the loop compensation and the fault protection circuitry. The applications of the KA5L0365RN include SMPS for VCR, SVR, STB, DVD & DVCD, SMPS for Printer, Facsimile & Scanner, Adaptor for Camcorder.

Parametrics

KA5L0365RN absolute maximum ratings: (1)Maximum Drain Voltage, VD,MAX: 650 V; (2)Drain-Gate Voltage (RGS=1MΩ), VDGR: 650 V; (3)Gate-Source (GND) Voltage, VGS: ±30 V; (4)Drain Current Pulsed, IDM: 12.0 ADC; (5)Continuous Drain Current (TC=25℃), ID: 3.0 ADC; (6)Continuous Drain Current (TC=100℃), ID: 2.4 ADC; (7)Single Pulsed Avalanche Energy, EAS: 358 mJ; (8)Maximum Supply Voltage, VCC,MAX: 30 V; (9)Analog Input Voltage Range, VFB: -0.3 to VSD V; (10)Total Power Dissipation, PD: 75 W; Derating: 0.6 W/℃; (11)Operating Junction Temperature, TJ: +160℃; (12)Operating Ambient Temperature, TA: -25 to +85℃; (13)Storage Temperature Range, TSTG: -55 to +150℃.

Features

KA5L0365RN features: (1)Precision Fixed Operating Frequency (100/67/50kHz); (2)Low Start-up Current(Typ. 100uA); (3)Pulse by Pulse Current Limiting; (4)Over Current Protection; (5)Over Voltage Protection (Min. 25V); (6)Internal Thermal Shutdown Function; (7)Under Voltage Lockout; (8)Internal High Voltage Sense FET; (9)Auto-Restart Mode.

Diagrams

KA5L0365RN block diagram

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