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System General SG5841 SG5841DZ Highly Integrated Green-Mode PWM Controller 8-Pin DIP

$4.99

  • Model: system General SG5841DZ
  • Units in Stock: 1000


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Description

System General SG5841  SG5841DZ Highly Integrated Green-Mode PWM Controller  8-Pin DIP

Description:

To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to continuously decrease the switching frequency at light-load conditions. 

To further reduce power consumption, SG5841/J is manufactured using the BiCMOS process. This allows a low start-up current, around 14μA, and an operating current of only 4mA.  The SG5841/J built-in synchronized slope compensation achieves stable peak-current-mode control. The proprietary internal sawtooth power-limiter ensures constant output power limit over a wide range of AC input voltages, from 90VAC to 264VAC.

SG5841/J provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection circuit ensures safety should an open-loop or output-short-circuit failure occur. PWM output is disabled until VDD drops below the UVLO lower limit, then the controller starts again. An external NTC thermistor can be applied for over-temperature protection.

Features:

  • Green-Mode PWM Controller
  •  Low Start-Up Current (14μA)
  •  Low Operating Current (4mA)
  • Programmable PWM Frequency with Hopping
  •  Peak-Current-Mode Control
  •  Cycle-by-Cycle Current Limiting
  •  Synchronized Slope Compensation
  • Leading-Edge Blanking
  •  Constant Output Power Limit
  • Totem Pole Output with Soft Driving
  •  VDD Over-Voltage Clamping
  •  Programmable Over-Temperature Protection (OTP)
  •  Internal Open-Loop Protection
  •  VDD Under-Voltage Lockout (UVLO)
  •  GATE Output Maximum Voltage Clamp (18V)
  • Manufacturer : System General Corp.
  • Part Number : SG5841DZ
  • Package : 8-Pin DIP
  • Similar items :SG5841JDZ 

Application:

  • General-purpose switch-mode power supplies
  • flyback power converters, including:Power Adapters  Open-Frame SMPS

Package Included:

  • 1 X System General SG5841  SG5841DZ Highly Integrated Green-Mode PWM Controller  8-Pin DIP

Additional Information

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This product was added to our catalog on Sunday 01 January, 2012.

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