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KA5Q0740RT

Features: • Quasi Resonant Converter Controller• Internal Burst Mode Controller for Stand-by Mode• Pulse by Pulse Current Limiting• Over Current Latch Protection• Over Voltage Protection ( Vsync: Min. 11V )• Internal Thermal Shutdown Function• Under Voltag...

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KA5Q0740RT: Features: • Quasi Resonant Converter Controller• Internal Burst Mode Controller for Stand-by Mode• Pulse by Pulse Current Limiting• Over Current Latch Protection• Over ...

KA5Q0740RT Data Sheet

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Part Number:
KA5Q0740RT
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Quasi Resonant Converter Controller
• Internal Burst Mode Controller for Stand-by Mode
• Pulse by Pulse Current Limiting
• Over Current Latch Protection
• Over Voltage Protection ( Vsync: Min. 11V )
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Auto-Restart Mode


Specifications

Parameter Symbol Value Unit
Maximum Drain voltage (1) VD,MAX 400 V
Drain-Gate voltage (RGS=1M) VDGR 400 V
Gate-source (GND) voltage VGS ±30 V
Drain current pulsed (2) IDM 18.4 ADC
Single pulsed avalanche energy (3) EAS 360 mJ
Avalanche current (4) IAS 20 A
Continuous drain current (TC=25) ID 4.6 ADC
Continuous drain current (TC=100) ID 2.9 ADC
Maximum Supply voltage VCC,MAX 40 V
Analog input voltage range Vsync −0.3 to 13V V
VFB −0.3 to VCC V
Total power dissipation PD 42 W
Derating 0.33 W/
Operating ambient temperature TOPR −25 to +85
Thermal Resistance Rthjc 2.98 /W
Storage temperature TSTG −55 to +150
Notes:
1. Tj=25 to 150
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L=30mH, VDD=50V, RG=25, starting Tj=25
4. L = 13uH, starting Tj = 25



Description

The Fairchild Power Switch(FPS) product family KA5Q0740RT is specially esigned for an off-line SMPS with minimal external omponents. The Fairchild Power Switch(FPS) KA5Q0740RT consists of a igh voltage power SenseFET and a current mode PWM IC.

The integrated PWM controller KA5Q0740RT includes the fixed oscillator, he under voltage lock out, the leading edge blanking, the ptimized gate turn-on/turn-off driver, the thermal shut down rotection, the over voltage protection, and the temperature ompensated precision current sources for loop compensation nd fault protection circuitry. Compared to a discrete OSFET and a controller or a RCC switching converter olutions, a Fairchild Power Switch(FPS) KA5Q0740RT can reduce the total umber of components, design size, and weight, so it will mprove efficiency, productivity, and system reliability. KA5Q0740RT has  basic platform well suited for cost-effective design in a uasi-resonant converter as a C-TV power supply.




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