Product Summary

The KA5L0380R is a Fairchild Power Switch(FPS), which is specially designed for an off-line SMPS with minimal external components. The KA5L0380R Fairchild Power Switch(FPS) 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.

Parametrics

KA5L0380R absolute maximum ratings: (1)Maximum Drain Voltage: 800 V; (2)Drain-Gate Voltage (RGS=1MΩ): 800 V; (3)Gate-Source (GND) Voltage: ±30 V; (4)Drain Current Pulsed (1): 12.0 ADC; (5)Continuous Drain Current (TC=25℃):3.0 ADC; (6)Continuous Drain Current (TC=100℃): 2.1 ADC; (7)Single Pulsed Avalanche Energy (2): 95 mJ; (8)Maximum Supply Voltage: 30 V; (9)Total Power Dissipation: 75 W; (10)Operating Ambient Temperature: -25 to +85 ℃; (11)Storage Temperature Range: -55 to +150 ℃.

Features

KA5L0380R features: (1)Precision Fixed Operating Frequency (100/67/50kHz); (2)Low Start-up Current(Typ. 100μA); (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

KA5L0380R block diagram

Image Part No Mfg Description Data Sheet Download Pricing
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KA5L0380R
KA5L0380R

Other


Data Sheet

Negotiable 
KA5L0380RTU
KA5L0380RTU

Fairchild Semiconductor

Switching Converters, Regulators & Controllers 3A/800V 50KHz Power Switch

Data Sheet

0-1: $1.06
1-25: $0.95
25-100: $0.83
100-250: $0.75
KA5L0380RTU_Q
KA5L0380RTU_Q

Fairchild Semiconductor

Power Switch ICs - Power Distribution

Data Sheet

Negotiable 
KA5L0380RYDTU
KA5L0380RYDTU

Fairchild Semiconductor

Switching Converters, Regulators & Controllers 3A/800V 50KHz Power Switch

Data Sheet

0-1: $1.06
1-25: $0.95
25-100: $0.83
100-250: $0.75