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Description
AT1452AS is a product category of IC chips manufactured by Aimtron Technology. It is a charger control IC for Photoflash capacitor, which comes with soft start function, adjustable maximum duty cycle, auto-refresh and autodischarge (soft start capacitor) circuit. The use of external resistor to alter the switching duty and a transformer to regulate input current are possible with the control technique. It has automatic refresh that allows the capacitor to remain charged while the output voltage dropped 10%. A logic high on the CHARGE pin initiates charging, while the READY pin signals that the capacitor is fully charged.
Specifications and features
• 2.5 to 5.5V supply voltage operating range.
• Low current consumption: 1mA in operation,
• 50 kHz or 100kHz operation frequency.
• Built-in maximum duty control.
• Push-pull output.
• Built-in soft start circuit.
• Built-in auto-discharge function.
• Built-in auto-refresh function.Application Scenarios
• Digital Still Cameras flash unit
Comparison
Advantages• The adjustable soft start is programmable by an external capacitor.
• The use of external resistor to change the switching duty and use of transformer.
• Automatic refresh enables the capacitor to remain charged while the output voltage dropped 10%.Disadvantages• It is only suitable for DSC flash units, limiting its usage to a specific product category.
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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 AT1452AS
- Chipdatas Part: CD86-AT1452AS
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/30 01:55 +0800
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The fee is charged according to the rule of PayPal.
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