CS51227 Selling Leads, Price trend, CS51227 DataSheet download, circuit diagram from SeekIC.com

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...

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SeekIC No. : 004316506 Detail

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...

CS51227 Data Sheet

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Part Number:: CS51227
Supply Ability:: 5000

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1~5000

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Product Details

Description

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 Leading Edge Blanking
• 50 ns GATE Rise and Fall Time (1.0 nF Load)
• Maximum Duty Cycle Over 85%
• Programmable VoltSecond Clamp

Pinout

Connection Diagram

Specifications

Rating	Value	Unit
Operating Junction Temperature, T_J	150	°C
Storage Temperature Range,T_S	65 to 150	°C
ESD Susceptibility (Human Body Model)	2.0	KV
Lead Temperature Soldering: Reflow:(SMD styles only)(Note1.)	230 peak	°C

1. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.

Description

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.

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CS51227

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