Features: • 1.0 MHz Frequency Capability• 4.7 V StartUp Voltage• Fixed Frequency Voltage Mode Operation with Feed Forward• Undervoltage Lockout• 75 A StartUp Current• Thermal Shutdown• 1.0 A Sink/Source Gate Drive• PulseByPulse Current Limit with Lea...
CS51227: Features: • 1.0 MHz Frequency Capability• 4.7 V StartUp Voltage• Fixed Frequency Voltage Mode Operation with Feed Forward• Undervoltage Lockout• 75 A StartUp Current...
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Rating |
Value |
Unit |
Operating Junction Temperature, TJ |
150 |
°C |
Storage Temperature Range,TS |
65 to 150 |
°C |
ESD Susceptibility (Human Body Model) |
2.0 |
KV |
Lead Temperature Soldering: Reflow:(SMD styles only)(Note1.) |
230 peak |
°C |
The CS51227 is a fixed frequency, single output PWM controller using feed forward voltage mode control. Feed forward control provides superior line regulation and line transient response. This PWM controller has been optimized for high frequency primary side control operation. It has undervoltage lockout with 4.7 V start up voltage and 75 A start up current. One external capacitor can program the switching frequency up to 1.0 MHz. The protection features include pulsebypulse current limit with leading edge blanking and thermal shutdown. The CS51227 is available in 8 lead SO narrow surface mount package.