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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 -
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
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- - EMS: 10-15 business days
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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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: 2024/10/02 11:51 +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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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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