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SG6846B Datasheet (PDF) - Fairchild Semiconductor

SG6846B Datasheet PDF - Fairchild Semiconductor
Part # SG6846B
Download  SG6846B Download

File Size   451.17 Kbytes
Page   15 Pages
Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor
Description Highly Integrated Green-Mode PWM Controller

SG6846B Datasheet (PDF)

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SG6846B Datasheet PDF - Fairchild Semiconductor

Part # SG6846B
Download  SG6846B Click to download

File Size   451.17 Kbytes
Page   15 Pages
Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor
Description Highly Integrated Green-Mode PWM Controller

SG6846B Datasheet (HTML) - Fairchild Semiconductor

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SG6846B Product details

Description

The highly integrated PWM controller, SG6846B, provides several features to enhance the performance of fly-back converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to continuously decrease the switching frequency under light-load conditions. Under zero-load conditions, the power supply enters burst-mode. This completely shuts off PWM output. 



Features

  Low Startup 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

  VDDOver 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 (BLSY, BLSZ)

  Two-level OCP Delay with 200ms

  Programmable PWM Frequency with Frequency Hopping

  OCP Threshold is 2/3 Peak Current Limit

  Soft Startup Time: 5ms



Applications

General-purpose switch-mode power supplies and flyback power converters, including:

Power Adapters

Open-frame SMPS

SMPS with Surge-current Output, such as for Printers, Scanners, Motor Drivers




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About Fairchild Semiconductor


Fairchild Semiconductor was a pioneering semiconductor company that was founded in the late 1950s.
The company was known for its innovation in the development of the first commercial transistor and for its contributions to the advancement of the integrated circuit technology.
Fairchild became a leading supplier of power semiconductors, analog and mixed-signal integrated circuits, and other semiconductor products.
The company was acquired by ON Semiconductor in 2016 and its products and technologies continue to be developed and sold under the ON Semiconductor brand.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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