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SG6848TZ1 - Green-Mode PWM Controller

Description

This highly integrated PWM controller provides several enhancements to meet the low standby-power needs of low-power SMPS.

To minimize standby power consumption, the proprietary Green Mode provides offtime modulation to continuously decrease PWM frequency under light-load conditions.

Features

  • Green-Mode PWM Controller.
  • Low Startup Current: 5 μA.
  • Low Operating Current: 3 mA.
  • Programmable PWM Frequency.
  • Peak-Current-Mode Operation.
  • Leading-Edge Blanking.
  • Built-in Synchronized Slope Compensation.
  • Cycle-by-Cycle Current Limiting.
  • Constant Output Power Limit.
  • Gate Output Voltage Clamped at 15 V.
  • Small SSOT-6 Package.

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Full PDF Text Transcription

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NOT RECOMMENDED FOR NEW DESIGNS SG6848x1 — Low Cost, Green-Mode PWM Controller for Flyback Converters SG6848x1 Low-Cost, Green-Mode PWM Controller for Flyback Converters Features  Green-Mode PWM Controller  Low Startup Current: 5 μA  Low Operating Current: 3 mA  Programmable PWM Frequency  Peak-Current-Mode Operation  Leading-Edge Blanking  Built-in Synchronized Slope Compensation  Cycle-by-Cycle Current Limiting  Constant Output Power Limit  Gate Output Voltage Clamped at 15 V  Small SSOT-6 Package Applications General-purpose switched-mode power supplies (SMPS) and flyback power converters, such as:  Battery chargers for cellular phones, cordless phones, PDAs, digital cameras, and power tools  Power adapters for ink jet printers, video game consoles, and portable audio pl
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