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Description
The SG3845GS is a control IC that is optimized for off-line fixed frequency, current-mode switching power supplies. It offers a range of features including improved line regulation, load regulation, pulse-by-pulse current limiting, and protection of the power supply output switch.
Specifications and features
- Low start-up current (<1mA)
- Automatic feed forward compensation
- Trimmed oscillator discharge current
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with 6V hysteresis (SG1844 only)
- Double pulse suppression
- High-current totem-pole output
- Internally trimmed bandgap reference
- 500kHz operation
- Undervoltage lockout SG1844 - 16 volts SG1845 - 8.4 volts
- Low shoot-through current <75mA over temperature
Application Scenarios
The SG3845GS control IC is commonly used in off-line fixed frequency, current-mode switching power supplies. It is suitable for various applications such as power adapters, LED lighting, and industrial power systems.
Comparison
Advantages- Optimized for off-line control
- Low start-up current
- Automatic feed forward compensation
- Trimmed oscillator discharge current
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with 6V hysteresis (SG1844 only)
- Double pulse suppression
- High-current totem-pole output
- Internally trimmed bandgap reference
- 500kHz operation
- Undervoltage lockout SG1844 - 16 volts SG1845 - 8.4 volts
- Low shoot-through current <75mA over temperatureDisadvantages- N/A -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download SG3845GS
- Chipdatas Part: CD94-SG3845GS
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/30 07:30 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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