KA5Q0765RTHYDTU Integrated Circuit Chip Quasi Resonant Converter Controller, Internal Burst Mode Controller
electronics ic chip
,integrated circuit ic
KA5Q0765RTH
Fairchild Power Switch(FPS)
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
• Primary Side Regulation
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) consists of a high voltage power SenseFET and a current mode PWM IC. The integrated PWM controller includes the fixed oscillator, the under voltage lock out, the leading edge blanking, the optimized gate turn-on/turn-off driver, the thermal shut down protection, the over voltage protection, and the temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to a discrete MOSFET and a controller or a RCC switching converter solutions, a Fairchild Power Switch(FPS) can reduce the total number of components, design size, and weight, so it will improve efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in a quasi-resonant converter as a C-TV power supply.
Absolute Maximum Ratings (Ta=25°C, unless otherwise specified)
| Parameter | Symbol | Value | Unit |
| Drain-Gate Voltage (RGS=1MΩ) | VDGR | 650 | V |
| Gate-Source (GND) Voltage | VGS | ±30 | V |
| Drain Current Pulsed (2) | IDM | 28 | ADC |
| Single Pulsed Avalanch Energy (3) | EAS | 370 | mJ |
| Avalanch Current (4) | IAS | 17 | A |
| Continuous Drain Current (Tc = 25°C) | ID | 7 | ADC |
| Continuous Drain Current (TC=100°C) | ID | 4.5 | ADC |
| Supply Voltage | VCC | 40 | V |
| Analog Input Voltage Range | Vsync | -0.3 to 13 | V |
| VFB | -0.3 to VCC | V | |
| Total Power Dissipation | PD | 45 | W |
| Operating Junction Temperature | TJ | +150 | °C |
| Operating Ambient Temperature | TA | -25 to +85 | °C |
| Storage Temperature Range | TSTG | -55 to +150 | °C |
| Thermal Resistance | Rthjc | 2.98 | °C/W |
Notes:
1. Tj = 25°C to 150°C
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L = 30mH, VDD = 50V, RG = 25Ω, starting Tj = 25°C
4. L = 13uH, starting Tj = 25°C
Internal Block Diagram
Stock Offer (Hot Sell)
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