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SG6846C

Fairchild Semiconductor
Part Number SG6846C
Manufacturer Fairchild Semiconductor
Description Highly Integrated Green-Mode PWM Controller
Published Feb 25, 2009
Detailed Description SG6846C — Highly Integrated Green-Mode PWM Controller www.DataSheet4U.com May 2008 SG6846C Highly Integrated Green-Mo...
Datasheet PDF File SG6846C PDF File

SG6846C
SG6846C

Overview
SG6846C — Highly Integrated Green-Mode PWM Controller www.
DataSheet4U.
com May 2008 SG6846C Highly Integrated Green-Mode PWM Controller Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Low Start-up Current: 8µA Low Operating Current: 3.
7mA Peak-current Mode Operation with Cycle-by-cycle Current Limiting PWM Frequency Continuously Decreasing with Burst Mode at Light Loads VDD Over-Voltage Protection (OVP) AC Input Brownout Protection with Hysteresis Constant Output Power Limit (Full AC Input Range) Internal Latch Circuit for OVP, OTP, and OCP Two-level OCP Delay: 110ms Programmable PWM Frequency with Frequency Hopping OCP Threshold is Half Peak Current Limit Feedback Open-loop Protection with 110ms Delay Soft Start-up Time: 5ms Description A highly integrated PWM controller, SG6846C provides several features to enhance the performance of flyback converters.
To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to continuously decrease the switching f...


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